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IONOS Group SE Interim / Quarterly Report 2025

Nov 12, 2025

4508_rns_2025-11-12_9f7f405e-a9bb-4aa0-9cf3-522d2ca45d1c.pdf

Interim / Quarterly Report

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Interim Statement Q3 2025

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SELECTED KEY FIGURES

September 30, 2025 September 30, 2024 Change NET INCOME (in €k) Revenue 980,241 923,095 6.2% EBITDA 353,425 290,905 21.5% Adjusted EBITDA 368,377 305,051 20.8% EBIT 272,336 209,169 30.2% Adjusted EBT (1) 234,374 163,595 43.3% Adjusted EPS (in €) (2) 1.35 0.96 40.6% BALANCE SHEET (in €k) Current assets 232,386 298,361 –22.1% Non-current assets 1,327,747 1,358,229 –2.2% Equity 265,660 98,631 169.3% Equity ratio 17.0 % 6.0 % +11% P Balance sheet total 1,560,133 1,656,590 –5.8% CASH FLOW (in €k) Cash flow before changes in balance sheet items (subtotal) 306,257 270,711 13.1% Cash flow from operating activities 294,216 285,704 3.0% Cash flow from investing activities –41,257 –115,975 –64.4% Free Cashflow (3) 242,981 219,143 10.9% EMPLOYEES (4) Headcount as of September 30 4,167 4,187 -0.5% thereof domestic 2,045 2,197 –6.9% thereof foreign 2,122 1,990 6.6% SHARE (in €) Share price as of September 30 (Xetra) 39.75 22.40 77.5% CUSTOMER BASE (in Mio.) 6.53 6.30 0.23 thereof domestic 3.27 3.21 0.06 thereof foreign 3.26 3.09 0.16

(1) EBT excluding non-cash valuation effects from the contingent purchase price liability (EBT-Effect: -€10.347k; 2024: -€11.773k).

(2) EPS excluding non-cash valuation effects from the contingent purchase price liability (EPS-Effect: -€0.08; 2024: -€0.08). For reasons of comparability, EPS for Q3 2024 was calculated on the basis of 138,847k shares outstanding, as was the case for Q3 2025.

(3) Free cash flow is defined as cash flow from operating activities (disclosed in the consolidated financial statement), less ca pital expenditure for intangible assets and property, plant, and equipment, plus payments from the disposal of intangible assets and property, plan t, and equipment, and including the repayment of lease liabilities, which have been recognized in net cash payments in the financing area since the 2019 fiscal year.

(4) (Active) employees in 2024 restated after adjustment of the calculation logic (disclosure of exempt employees and employees i n the passive phase of partial retirement among inactive employees since July 2025).

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CONTENT

Foreword of CEO

INTERIM STATEMENT AS OF 30TH SEPTEMBER 2025

Group profile

Business development

Position of the Group

Subsequent events

Risk and opportunity report

Forecast report

Notes on the interim statements

INTERIM FINANCIAL STATEMENT AS OF 30TH SEPTEMBER 2025

Consolidated statement of financial position

Consolidated statement of comprehensive income

Consolidated cash flow statement

Consolidated statement of changes in equity

FINANCIAL CALENDAR / IMPRINT

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Dear shareholders, employees, and business partners,

IONOS Group SE looks back on a successful first nine months of 2025. Revenue, EBITDA, and customer numbers continued to increase.

The Management Board of IONOS Group SE has decided to put Sedo GmbH, and thus the "AdTech" segment, up for sale and to focus entirely on the core business areas of "Web Presence & Productivity" and "Cloud Solutions."

The AdTech business unit, which is not part of IONOS's core business, has increasingly developed from a secondary market for the use and trading of domains into a platform for traffic monetization. This repositioning opens up numerous opportunities for the AdTech business unit, but these must be developed with the appropriate focus.

With the decision to put the "AdTech" segment up for sale, the division is reported separately as a discontinued operation in accordance with IFRS 5. The financial figures for the previous year have been adjusted accordingly.

The IONOS customer base grew by around 210,000 to 6.53 million customers in the first nine months of 2025 (December 31, 2024: 6.32 million customers).

Revenue (previously "Digital Solutions & Cloud" segment) increased by 6.2% to €980.2 million (comparable prior-year figure for 9M 2024: €923.1 million) or by 6.6% excluding intercompany revenue. Adjusted EBITDA rose by 20.8% to €368.5 million (comparable prior-year figure for 9M 2024: €305.1 million). The adjusted EBITDA margin improved accordingly to 37.6% (9M 2024: 33.0%).

Adjusted earnings per share (EPS) rose by 40.6% to €1.35 (9M 2024: €0.96).

"The AdTech business faces exciting challenges and at the same time has a lot of potential. To leverage this potential, increasing management attention is required, which we cannot provide optimally on a permanent basis. In the future, we want to focus entirely on our core business," said Achim Weiß, CEO of IONOS Group SE. "The development of AI, from conversational AI to reasoning to autonomous AI and multi-agent AI systems, is heralding a new era. With the launch of IONOS Momentum, we are bundling our existing AI products and will be rolling out a variety of products and enhancements in the coming months. IONOS Momentum makes AI accessible and easy to use for every entrepreneur."

We confirm our forecast, which previously referred to our remaining core business, "Digital Solutions & Cloud". Adjusted for currency effects, revenue is expected to grow by approximately 8% in fiscal year 2025 (2024: €1,248.1 million), with an adjusted EBITDA margin of approximately 35% (2024: 32.9%). Adjusted EBITDA in the remaining core business is expected to increase by approximately 17% to approximately €480 million (2024: €410.4 million).

Montabaur, 11 November 2025

Achim Weiß

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INTERIM STATEMENT AS OF 30TH SEPTEMBER 2025

Group profile

General information about the company and the financial statements

The consolidated financial statements of IONOS Group SE, Montabaur (hereinafter referred to as "IONOS Group SE" or "Company") comprise various companies in Germany and abroad (hereinafter collectively referred to as "IONOS" or "Group"). IONOS is an international digitalization partner and cloud provider for primarily small and medium-sized enterprises (hereinafter referred to as "SMEs"). IONOS Group SE is a pure holding company. Operational business is conducted by IONOS SE, Montabaur, and STRATO GmbH Berlin, as well as their subsidiaries, which are held by the intermediate holding company IONOS Holding SE. For a simplified representation (as of September 30, 2025) of the group structure and the corporate structure of the United Internet Group, please refer to the presentation "Corporate integration of IONOS into the United Internet Group."

In September 2025, the Management Board of IONOS Group SE decided to put Sedo GmbH and its subsidiaries ("Sedo") up for sale, thereby divesting the "AdTech" business segment. With the decision to sell the AdTech business segment, the core business, consisting of Web Presence & Productivity and Cloud Solutions (previously Digital Solutions & Cloud), will in future be reported as the sole business segment, which will be the only reportable business area in the following. To ensure consistent presentation, the previous year's figures for the reportable key figures have been adjusted accordingly, and the AdTech business has been accounted for in accordance with the requirements of IFRS 5. For a detailed presentation, see the section "Disposal group."

The shares of IONOS Group SE have been listed on the regulated market of the Frankfurt Stock Exchange since February 8, 2023. As of September 30, 2025, United Internet AG held 63.8% of the shares in IONOS Group SE. As of September 30, 2025, 36.2% of the shares are in free float. Of these, IONOS Group SE holds 0.8% of its treasury shares.

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Corporate integration of IONOS into the United Internet Group

Basis of consolidation

Determination of the basis of consolidation

As of September 30, 2025, the Group comprises the following companies in which IONOS Group SE holds a direct or indirect majority stake (corresponding to the shares in capital indicated in parentheses). Unless otherwise stated, the share in capital corresponds to the share of voting rights.

IONOS Holding SE, Montabaur (100.0%)

  • ◼ STRATO GmbH, Berlin (100.0%)
    • ◼ Cronon GmbH, Berlin (100.0%)
    • ◼ STRATO Customer Service GmbH, Berlin (100.0%)
  • ◼ IONOS SE, Montabaur (100.0%)
    • ◼ IONOS Datacenter SAS, Niederlauterbach / France (100.0%)
    • ◼ 1&1 Internet Development SRL, Bucharest/ Romania (100.0%)
    • ◼ IONOS Cloud S.L.U. Madrid / Spain (100.0%)
    • ◼ IONOS Inc., Chesterbrook, Pennsylvania / USA (100.0%)
    • ◼ A1 Media USA LLC, Chesterbrook, Pennsylvania / USA (100.0%)
    • ◼ 1&1 Cardgate LLC, Chesterbrook, Pennsylvania / USA (100.0%)
    • ◼ IONOS Cloud Ltd., Gloucester / UK (100.0%)
    • ◼ IONOS S.à r.l., Saargemünd/ France (100.0%)
    • ◼ IONOS Service GmbH, Montabaur (100.0%)
    • ◼ 1&1 IONOS (Philippines) Inc., Cebu City / Philippines (100.0%)
    • ◼ IONOS Cloud Holdings Ltd., Gloucester / UK (100.0%)

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  • ◼ Fasthosts Internet Ltd., Gloucester / UK (100.0%)
  • ◼ Arsys Internet S.L.U., Logroño / Spain (100.0%)
  • ◼ Arsys Internet E.U.R.L., Perpignan / France (100.0%)
  • ◼ Tesys Internet S.L., Logroño / Spain (100.0%)
  • ◼ InterNetX Holding GmbH, Regensburg (100.0%)
  • ◼ InterNetX GmbH, Regensburg (100.0%)
  • ◼ Schlund Technologies GmbH, Regensburg (100.0%)
  • ◼ PSI-USA Inc., Las Vegas, Nevada / USA (100.0%)
  • ◼ InterNetX Corp., Miami, Florida / USA (100.0%)
  • ◼ PrivateName Services Inc., Richmond / Canada (100.0%)
  • ◼ Sedo GmbH, Cologne (100.0%)
  • ◼ DomCollect International GmbH, Montabaur (100.0%)
  • ◼ Sedo.com LLC, Cambridge, Massachusetts / USA (100.0%)
  • ◼ Sedo.cn Ltd., Shenzhen / VR China (100.0%)
  • ◼ united-domains GmbH, Starnberg (100.0%)
  • ◼ united-domains Reselling GmbH, Starnberg (100.0%)
  • ◼ Immobilienverwaltung AB GmbH, Montabaur (100.0%)
  • ◼ home.pl S.A., Szczecin / Poland (100.0%)
  • ◼ AZ.pl Sp. z o.o., Szczecin / Poland (100.0%)
  • ◼ HBS Cloud Sp. z o.o., Szczecin / Poland (100.0%)
  • ◼ premium.pl Sp. z o.o., Szczecin / Poland (75.0%)
  • ◼ IONOS Cloud Inc., Newark, Delaware / USA (100.0%)
  • ◼ World4You Internet Services GmbH, Linz / Austria (100.0%)
  • ◼ we22 GmbH, Cologne (100.0%)
  • ◼ we22 Solutions GmbH, Berlin (100.0%)
  • ◼ CM4all GmbH, Cologne (100.0%)
  • ◼ Content Management Inc., Boston, Massachusetts / USA (i.L.; 100.0%)

Associated companies

Investments in which the Company can exercise significant influence over financial and operating policies are accounted for as associates in accordance with IAS 28 using the equity method and comprise the following significant companies:

  • ◼ Stackable GmbH, Wedel (27.5%)
  • ◼ Street Media GmbH, Berlin (28.7%)

Changes in the Group

In fiscal year 2025, a 15.0% stake in Entri LLC, Santa Clara, USA, was acquired.

The sale of DomainsBot S.r.l., Rome, Italy, was completed in fiscal year 2025.

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Discontinued operations

In September 2025, the Management Board of IONOS Group SE decided to put Sedo GmbH and its subsidiaries ("Sedo") up for sale, thereby divesting the 'AdTech' business segment. The overarching goal is to focus management's attention entirely on the core business segments of "Web Presence & Productivity" and "Cloud Solutions."

The AdTech business segment has recently—partly due to changing market conditions—increasingly developed from the secondary market for the use and trading of domains into a platform for traffic monetization and thus a part of the digital advertising market.

At the same time, the AdTech division has moved away from the core business. The planned change in ownership will enable Sedo to make even better use of the diverse opportunities offered by the AdTech business in the future and to continue to develop positively.

With the decision to put AdTech up for sale and the sales process initiated, AdTech (or Sedo) is reported as a discontinued operation in accordance with IFRS 5. The current nine-month figures for 2025 and the previous year's figures in the statement of comprehensive income (P&L) have been adjusted accordingly. The revenues and expenses of the discontinued operation are no longer included in the respective items of the statement of comprehensive income. The discontinued operation is presented separately with its net income for the period after taxes.

Development of the discontinued operation AdTech

The discontinued operation AdTech (previously known as the Aftermarket division) represents the secondary market for the use and trading of domains. The product portfolio is primarily marketed through the Sedo brand.

In the field of digital advertising, the company mainly generates revenue with the RSOC (Related Search On Content) product provided by Google, for which IONOS operates a platform for monetizing traffic via advertising links. In addition, IONOS offers suitable solutions under the Sedo brand via its own marketplace, where domains can be offered at attractive prices or sold in an auction format.

As expected, the growth seen in the first half of 2025 in the AdTech segment did not continue in the third quarter of 2025. Overall, revenue increased by 22.0% in the first nine months of 2025.

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Cash flows of the discontinued operation from January 1 to September 30, 2025, in €k

2025 2024
January to January to
September September
Cash flow from operating activities 1,242 –114
Cash flow from investing activities –29 –38
Cash flow from financing activities –192 –219
Net increase / decrease in cash and cash equivalents 1,021 –371
Cash and cash equivalents at beginning of period 2,721 2,936
Currency translation adjustments of cash and cash equivalents –261 –19
Cash and cash equivalents at end of period 3,480 2,546

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Business development

The Group's business activities are presented in the Digital Solutions & Cloud division.

The remaining core business areas, Web Presence & Productivity and Cloud Solutions (formerly Digital Solutions & Cloud), offer IONOS customers tailor-made products in the Web Presence & Productivity area that enable them to set up an Internet presence quickly and easily. The Cloud Solutions offering includes both public cloud and private cloud solutions with a wide range of services in the areas of Infrastructureas-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS).

As part of group-wide standardization measures, some products were reclassified and reassigned.

In the first nine months of fiscal year 2025, the core business focused on acquiring new customers.

Overall, the number of customers increased by approximately 210,000 in fiscal year 2025 to a total of approximately 6.53 million customers.

Customer base development in the first 9 months of 2025

in Mio. September 30,2025 December 31,2024 Change
Total customers 6.53 6.32 0.21
thereof domestic 3.27 3.20 0.07
thereof foreign 3.26 3.12 0.14

(1) Customer numbers in previous periods adjusted retrospectively by -0.02 million customers after harmonization of the policy at subsidiaries in the context of the annual financial statements as of December 31, 2024

September 30, September 30,
in Mio. 2025 2024 Change
Total customers 6.53 6.27 0.26
thereof domestic 3.27 3.18 0.09
thereof foreign 3.26 3.09 0.17

(1) Customer numbers in previous periods adjusted retrospectively by -0.02 million customers after harmonization of the policy at subsidiaries in the context of the annual financial statements as of December 31, 2024

Due to customer growth and successful upselling and cross-selling, revenue in the core business increased by 4.6% from €309,844k to €324,200k compared to the previous year. In addition, further growth in virtual private server products and the large customer business related to the enterprise cloud in the Cloud Solutions segment also contributed to this increase.

EBITDA increased by 20.4% to €126,852k due to sales growth and a higher margin resulting from economies of scale and price effects.

Adjusted for special items, operating segment EBITDA increased by 20.8% year-on-year in the first nine months, from €108,839k to €131,479k.

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Quarterly development: Change compared to the same quarter of the previous year

in €k Q4 2024 Q1 2025 Q2 2025 Q3 2025 Q3 2024 Change
Revenue 324,976 329,641 326,400 324,200 309,844 4.6%
Cost of sales –139,848 –133,060 –135,610 –130,014 –135,388 –4.0%
Depreciation and
amortization 29,980 27,390 27,066 26,633 27,326 –2.5%
EBITDA 97,401 106,389 120,184 126,852 105,332 20.4%
Adjusted EBITDA 105,230 112,772 124,126 131,479 108,839 20.8%

Overall, revenue from contracts with customers in the segment is divided between product revenue from the Web Presence & Productivity business area in the amount of €812,104k (previous year: €761,171k) and the Cloud Solutions business area in the amount of €136,035k (previous year: €127,851k).

Position of the Group

In the first nine months of 2025, there were significant acquisition and divestment effects on revenue and EBITDA at the Group and segment levels. In accordance with IFRS 5, the AdTech business is no longer included in the earnings figures for fiscal year 2025 and the direct comparison period. For further information, see the section entitled "Discontinued Operation."

Earnings position

Revenue from contracts with IONOS customers increased by +6.2% to €980,241k in the first nine months of 2025 (previous year: €923,095k). The increase in revenue is mainly attributable to the continued positive development of new customer business and higher sales from cross-selling and upselling to existing customers. In addition, the rising level of revenue is also driven by the further expansion of our business activities in the Cloud Solutions product area.

Multi-period overview: Development of revenue and key earnings figures

in €k 9M 2022(1) 9M 2023(1) 9M 2024 9M 2025 Change
Revenue 953,639 1,058,709 923,095 980,241 6.2%
EBITDA 258,857 305,395 290,905 353,425 21.5%
EBITDA margin 27.1% 28.8% 31.5% 36.1% +4.6% P
Adjusted EBITDA 275,753 306,325 305,051 368,377 20.8%
Adjusted EBITDA margin 28.9% 28.9% 33.0% 37.6% +4.6% P
EBIT 174,008 224,873 209,169 272,336 30.2%
EBIT margin 18.2% 21.2% 22.7% 27.8% +5.1% P

(1) Starting in fiscal year 2025, including the immediately preceding period, AdTech will be accounted for in accordance with the provisions of IFRS 5.

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Quarterly development: Adjusted EBITDA

in €k Q4 2024 Q1 2025 Q2 2025 Q3 2025 Q3 2024
Earnings before taxes 51,911 55,297 80,271 88,460 66,013
Share of the profit or loss of associates
accounted for using the equity method -81 -81 –81 -82 -81
Financial income 815 582 497 430 3,086
Financing expenses -16,244 –24,203 –13,263 –12,108 –14,998
Operating result 67,421 78,999 93,118 100,219 78,006
Depreciation and amortization of intangible
assets and property, plant and equipment 29,980 27,390 27,066 26,633 27,326
EBITDA 97,401 106,389 120,184 126,852 105,332
Adjustment for LTIP (1) 1,099 1,482 1,560 1,561 1,030
Adjustment for Stand-alone activities (2) 2,331 2,198 2,032 2,544 2,530
Adjustment for consulting fees incurred forone-off projects (3) 0 0 0 590 0
Adjustment for severance payments (4) 4,398 2,703 351 –68 –54
Total adjustments 7,828 6,383 3,943 4,627 3,507
Adjusted EBITDA 105,230 112,772 124,126 131,479 108,839

(1) Includes costs for employee participation programs.

(2) Includes expenses in connection with the preparation of the separation from the United Internet Group and the establishment o f IONOS Group as an independent group mainly costs for the billing carve-out project (decoupling from the billing systems of 1&1 Telecommunication SE).

(3) Includes expenses for consulting fees incurred in connection with one-time projects, e.g., reorganization measures.

Includes expenses in connection with reorganization and restructuring measures, which primarily consist of severance payments and other personnel-related costs.

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Multi-period overview: Adjusted EBITDA

in €k 9M 2022(6) 9M 2023(6) 9M 2024 9M 2025
Earnings before taxes 110,417 190,048 151,822 224,027
Share of the profit or loss of associates
accounted for using the equity method 214 –50 –244 –244
Financial income 3,986 31,334 4,654 1,509
Financing expenses –67,790 –66,108 –61,758 –49,574
Operating result 174,008 224,873 209,169 272,336
Depreciation and amortization of intangible
assets and property, plant and equipment 84,850 80,522 81,736 81,089
EBITDA 258,857 305,395 290,905 353,425
Adjustment for LTIP (1) 2,837 4,120 4,593 4,603
Adjustment for Stand-alone activities (2) 10,876 7,304 8,063 6,774
Adjustment for IPO costs (3) 3,183 –11,675 0 0
Adjustment for consulting fees incurred for one-offprojects(4) 0 0 0 590
Adjustment for severance payments (5) 0 1,181 1,490 2,986
Total adjustments 16,896 930 14,146 14,953
Adjusted EBITDA 275,754 306,325 305,051 368,377

(1) Includes costs for employee participation programs.

In the first nine months of the year, EBITDA increased by €62,520k to a total of €353,425k, representing an increase of 21.5%. Despite temporarily higher marketing expenses (+14.4% compared to the same period last year), IONOS achieved a significant improvement. At the same time, the EBITDA margin increased from 31.5% in the previous year to 36.1% in the first nine months.

During the first three quarters of 2025, adjusted EBITDA grew as planned by 20.8% from €305,051k to €368,677k, despite changes in the timing of marketing expenses. The adjusted EBITDA margin also increased, coming in at 37.6%, well above the previous year's margin of 33.0%.

EBIT went up 30.2% from €209,169k to €272,336k, reflecting the effects described above.

At 27.8%, the EBIT margin for the first nine months of 2025 is above the previous year's margin of 22.7%.

(2) Includes expenses in connection with the preparation of the separation from the United Internet Group and the establishment o f IONOS Group as an independent group mainly costs for the billing carve-out project (decoupling from the billing systems of 1&1 Telecommunication SE).

(3) Includes external costs incurred in connection with the IPO. In the comparative quarters, this includes the income from passi ng on the costs incurred in connection with the IPO to the shareholders United Internet and Warburg Pincus.

(4) Includes expenses for consulting fees incurred in connection with one-time projects, e.g., reorganization measures.

Includes expenses in connection with reorganization and restructuring measures, which primarily consist of severance payments and other personnel-related costs.

Starting in fiscal year 2025, including the immediately preceding period, AdTech will be accounted for in accordance with the provisions of IFRS 5.

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Multi-period overview: Development of key cost items

in €k 9M 2022(1) 9M 2023(1) 9M 2024 9M 2025 Change
Cost of sales 509,166 552,442 399,006 398,684 –0.1%
Cost of sales ratio 53.4% 52.2% 43.2% 40.7% –2.5% P
Gross margin 46.6% 47.8% 56.8% 59.3% +2.5% P
Selling expenses 203,213 216,457 234,415 240,835 2.7%
Selling expenses ratio 21.3% 20.4% 25.4% 24.6% –0.8% P
Administrative expenses 59,751 68,667 72,466 74,349 2.6%
Administrative expenses ratio 6.3% 6.5% 7.9% 7.6% –0.3% P

(1) Starting in fiscal year 2025, including the immediately preceding period, AdTech will be accounted for in accordance with the provisions of IFRS 5.

Cost of sales decreased by -0.1% to €398,684k in the first nine months of 2025 compared to the previous year, with sales increasing by +6.2%, resulting in a rise in the gross margin from 56.8% to 59.3%. This development is mainly due to costs remaining unchanged as a result of several offsetting effects.

Selling expenses increased by €6,420k (+2.7%) in the first nine months of 2025 compared to the previous year. This was mainly due to a temporary increase in purchased marketing services (+€11,539 k or 14.4% compared to the previous year). Despite higher distribution costs, the distribution cost ratio fell by 0.8%, which is primarily attributable to the comparatively stronger increase in revenue.

Administrative expenses went up by 2.6% (+€1,883k) in the first nine months of 2025 compared to the previous year. This was mainly due to higher personnel and consulting costs.

The net position from other operating income and expenses increased by €12,655k to €17,717k (previous year: €5,062k). The effect mainly consists of positive currency developments (+€10,016k) and project subsidies (+€1,923k).

The financial result amounts to €48,065k (previous year: €57,104k) and includes the valuation adjustment of the purchase price liability in connection with the acquisition of STRATO GmbH (-€10,347k; previous year: -€11,773k). In addition, the loan from United Internet AG was repaid by September 30, 2025, which led to a significant decrease in interest expenses compared to the previous year.

Consolidated net income amounted to €176,247k, representing an increase of 43.7% compared with the same period of the previous year. Of this amount, €147,269k is attributable to continuing operations and €28,978k to discontinued operations.

Earnings per share (EPS) amounted to €1.27 in September 2025, compared with €0.88 in September 2024. As in the previous year, the annual result was significantly influenced by expenses arising from the change in a purchase price liability (EPS effect: €-0.08; previous year: €-0.08). The adjusted EPS (excluding the effect on earnings from the measurement of the contingent purchase price liability) amounted to €1.35 for the first nine months of 2025 and €0.96 for the first nine months of the previous year (+41.5%). Of this, €0.21 (€0.20 in 2024) is attributable to discontinued operations in the first nine months of 2025.

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Financial position

"Discontinued operation."

The cash and cash equivalents in the cash flow statement do not correspond to the cash and cash equivalents in the balance sheet as of September 30, 2025. This is because the cash and cash equivalents in the cash flow statement also include the sedo Group's cash and cash equivalents reported in the balance sheet as assets of discontinued operation in 2025.

For a cash flow statement for the AdTech business, see the section "Discontinued operation."

Development of key cash flow figures

in €k 9M 2025(2) 9M 2024 Change
Cash flow before changes in balance sheet items (subtotal) 306,257 270,711 13.1%
Cash flow from operating activities 294,216 285,704 3.0%
Cash flow from investing activities –41,257 –115,975 –64.4%
Free Cash flow (1) 242,981 219,143 10.9%
Cash flow from financing activities –255,762 –171,865 48.8%
Cash and cash equivalents as of September 30 26,611 20,566 29.4%

. Free cash flow is defined as cash flow from operating activities (disclosed in the consolidated financial statement), less ca pital expenditure for intangible assets and property, plant, and equipment, plus payments from the disposal of intangible assets and property, plan t, and equipment, and including the repayment of lease liabilities, which have been recognized in net cash payments in the financing area since the 2019 fiscal year. (2) For the reconciliation of cash and cash equivalents at the end of the reporting period between cash flow and balance sheet, s ee the section

Multi-period overview: development of the key cash flow figures

in €k 9M 2022 9M 2023 9M 2024 9M 2025(2)
Cash flow before changes in balance sheet items (subtotal) 214,078 243,999 270,711 306,257
Cash flow from operating activities 219,602 235,603 285,704 294,216
Cash flow from investing activities –86,568 –94,877 –115,975 –41,257
Free Cash flow (1) 134,446 174,151 219,143 242,981
Cash flow from financing activities –142,298 –141,403 –171,865 –255,762
Cash and cash equivalents as of September 30 42,828 25,904 20,566 26,611

(1) Free cash flow is defined as cash flow from operating activities (disclosed in the consolidated financial statement), less ca pital expenditure for intangible assets and property, plant, and equipment, plus payments from the disposal of intangible assets and property, plan t, and equipment, and including the repayment of lease liabilities, which have been recognized in net cash payments in the financing area since the 2019 fiscal year.

Net cash inflows from operating activities amounted to €294,216k, an increase of €8,512k compared to the previous year (previous year: €285,704k). The significant increase in consolidated net income (first nine months of 2025: €176,247k; previous year: €122,615k) was largely offset by payments from employee participation programs in the first nine months.

During the reporting period, net cash outflows from investing activities amounted to €41,257k, which is below the corresponding figure for the previous year (€115,975k). IONOS is linked to the cash pooling system of United Internet AG. IONOS used part of the surplus liquidity invested there to service the final installments of the loan to United Internet AG. This resulted in a net cash inflow of €37,695k (previous year: €-60,552k) within the scope of cash pooling, which was used for the final installment to repay the loan (€-100,000k). In addition, IONOS acquired shares in investments (first nine months of 2025: €-5,029k; previous year: €0 k) and paid the contractually agreed earn-out clause of €34,000k (previous year: €0 k) for the purchase of STRATO GmbH. Investments in intangible assets and property, plant, and equipment also decreased by €15,795k to €40,518k (previous year: €56,313k).

(2) For the reconciliation of cash and cash equivalents at the end of the reporting period between cash flow and balance sheet, s ee the section "Discontinued operation."

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At IONOS, Free Cash flow is defined as net cash inflows from operating activities, less investments in intangible assets and property, plant and equipment, plus cash inflows from disposals of intangible assets and property, plant and equipment, and including the repayment portion of lease liabilities.

As of September 2025, cash outflows from financing activities amounted to €255,762k from the acquisition of treasury shares in the amount of €36,577k (previous year: €22,319k). Payments for the repayment of the loan to United Internet AG amounted to €170,000k in September, which is €70,000k higher than in the previous year (September: €-100,000k). With the final payments to United Internet AG in the first nine months, the loan has now been repaid.

Cash and cash equivalents amounted to €26,611k as of September 30, 2025 (previous year: €20,566k). Of this amount, cash and cash equivalents of the sedo Group amounting to €3,480k were reported in the balance sheet as assets of disposal groups in accordance with the accounting requirements of IFRS 5.

Asset position

At €1,560,133k, the balance sheet total is slightly below the balance sheet total as of December 31, 2024 (€1,643,586k).

Development of current assets

September 30, December 31,
in €k 2025 2024 Change
Cash and cash equivalents 23,132 30,180 –23.4%
Trade accounts receivable 61,731 91,492 –32.5%
Receivables from related parties 50,618 88,487 –42.8%
Inventories 143 54 164.8%
Contract assets 6,358 9,235 –31.2%
Prepaid expenses 35,274 26,684 32.2%
Other financial assets 22,446 16,306 37.7%
Other non-financial assets 954 939 1.6%
Income tax claims 16,559 6,262 164.4%
Assets of discontinued operation 15,172 0 n/a
Total current assets 232,386 269,639 –13.8%

The €37,253k decrease in current assets is mainly due to the decline in receivables from related companies. These include surplus liquidity invested in cash pooling with United Internet AG, which was used by United Internet AG for the final loan repayment.

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Development of non-current assets

Contract assetsPrepaid expenses 34,242 26,122 31.1%
Goodwill 824,91823 830,14422 –0.6%4.5%
Intangible assets 128,489 145,610 –11.8%
Property, plant and equipment 285,765 315,402 –9.4%
Other financial assets/Receivables from finance lease 8,029 3,270 145.5%
Investments in associated companies 897 2,407 –62.7%
in €k September 30,2025 December 31,2024 Change

Non-current assets are down 3.4% overall compared with the end of fiscal year 2024. The increase in other financial assets is due to the purchase of shares in Entri LLC in the amount of €5,029k. Property, plant, and equipment and intangible assets decreased by €46,758k, mainly as a result of depreciation exceeding investments. Goodwill is lower than in the previous year due to exchange rate effects. Deferred tax assets are €5,586k below the previous year's level.

Development of current liabilities

September 30, December 31,
in €k 2025 2024 Change
Trade accounts payable 65,635 112,311 –41.6%
Liabilities to related parties 6,347 6,280 1.1%
Liabilities due to banks 9,407 102 9,122.5%
Income tax liabilities 62,619 35,798 74.9%
Contract liabilities 98,751 92,653 6.6%
Other provisions 430 640 –32.8%
Other financial liabilities 44,590 58,077 –23.2%
Other non-financial liabilities 42,185 54,251 –22.2%
Liabilities of discontinued operation 18,821 0 n/a
Total current liabilities 348,785 360,112 –3.1%

Current liabilities decreased by €11,328k overall compared to the end of fiscal year 2024. Other financial liabilities decreased by €13,487k, mainly due to the repayment of a purchase price liability in connection with the acquisition of STRATO GmbH. Current liabilities to banks increased by €9,305k due to interest accruals. Income tax liabilities increased by €26,821k. In addition, liabilities from disposal groups amounting to €18,821k are reported as of the reporting date.

{17}------------------------------------------------

Development of non-current liabilities

Total non-current liabilities 945,689 1,124,714 –15.9%
Other financial liabilities 98,900 108,927 –9.2%
Other provisions 2,978 3,271 –8.9%
Contract liabilities 2,859 2,112 35.3%
Deferred tax liabilities 42,447 42,827 –0.9%
Liabilities to related parties 0 170,000 –100.0%
Liabilities due to banks 798,504 797,577 0.1%
in €k September 30,2025 December 31,2024 Change

The decline in non-current liabilities compared to the previous year is mainly due to the repayment of the vendor loan to United Internet AG in the amount of €170,000k.

Development of equity

Total equity 265,660 158,760 67.3%
Non-controlling interests 152 144 5.5%
Equity attributable to shareholders of the parent company 265,508 158,616 67.4%
Currency translation adjustment –27,136 –10,884 149.3%
Treasury shares –28,906 –12,172 137.5%
Reserves 181,550 41,672 335.7%
Issued capital 140,000 140,000 0.0%
in €k September 30,2025 December 31,2024 Change

The Group's equity increased from €158,760k as of December 31, 2024, to €265,660k as of September 30, 2025. The increase is mainly due to the change in other reserves. In the first nine months, the addition of consolidated net income of €176,247k and the valuation and exercise of employee participation programs amounting to €-36,361k were responsible for this change. The acquisition of treasury shares, which are to be deducted from equity, had an offsetting effect.

On May 8, 2024, the Management Board of IONOS Group SE, with the approval of the Supervisory Board and based on the authorization granted by the extraordinary general meeting on January 26, 2023, initially resolved to acquire up to 850,000 of its own shares via the stock exchange. This corresponds to approximately 0.6% of the issued capital of €140,000k. The buyback program should be carried out from mid-May 2024 and no later than February 28, 2025.

As part of the share buyback program announced on May 8, 2024, IONOS Group SE acquired a total of 850,000 of its own shares between May 17 and July 25, 2024, thereby completing the share buyback program. The purchase price, excluding incidental acquisition costs, amounted to €22,319k.

As announced in an ad hoc announcement on January 21, 2025, the Management Board of IONOS Group SE, with the approval of the Supervisory Board and based on the authorization granted by the extraordinary Annual General Meeting on January 26, 2023, has decided to launch a share buyback program and to acquire up to 1,500,000 of its own shares (corresponding to approximately 1.1% of the share capital of €140,000,000) via the stock exchange. The total volume of the buyback program amounted to up to €40 million (excluding incidental acquisition costs).

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The buyback program was to be carried out by December 31, 2025, at the latest. By June 30, 2025, IONOS Group SE had acquired 1,500,000 of its own shares, thereby completing the share buyback program. The purchase price, excluding incidental acquisition costs, amounted to €36,577k.

The repurchase will be used, among other things, to settle claims arising from employee stock ownership programs but may in principle be used for all purposes specified in the authorization granted by the Annual General Meeting.

Within the framework of employee stock ownership programs, 810,204 treasury shares were issued in the first nine months

Net debt (i.e., the balance of liabilities to related companies and banks, receivables from related companies, and cash and cash equivalents) decreased by €114,784k from €855,292k as of December 31 to €740,508k as of September 30, 2025.

Multi-period overview: Development of key balance sheet items

in €k December 31,2022 December 31,2023 December 31,2024 September 30,2025
Balance sheet total 1,541,505 1,596,265 1,643,586 1,560,133
Cash and cash equivalents 26,440 22,652 30,180 23,132
Trade accounts receivable 66,628 73,512 91,492 61,731
Property, plant and equipment 322,286 321,661 315,402 285,765
Intangible assets 178,826 164,174 145,610 128,489
Goodwill 820,844 826,271 830,144 824,918
Liabilities due to banks 0 797,587 797,679 807,911
Liabilities to related parties 1,245,000 350,000 170,000 0
Issued capital 360 140,000 140,000 140,000
Equity –162,180 –2,781 158,760 265,660
Equity ratio –10.5% –0.2% 9.7% 17.0%

Management Board's overall assessment of the business situation

In the first nine months of fiscal year 2025, the company further increased its revenue, adjusted EBITDA, and customer base.

The customer base grew by around 210,000 to 6.53 million customers in the first nine months of 2025 (December 31, 2024: 6.32 million customers).

Revenue (previously "Digital Solutions & Cloud" segment) increased by 6.2% to €980.2 million (comparable prior-year figure for 9M 2025: €923.1 million; in accordance with IFRS 5, excluding the "AdTech" segment) or by 6.7% excluding intercompany revenue. Adjusted EBITDA increased by 20.8% to €368.5 million (comparable prior-year figure for 9M 2024: €305.1 million). The adjusted EBITDA margin improved accordingly to 37.6% (9M 2024: 33.0%).

Based on the revenue and earnings figures achieved in the first nine months of 2025, and in view of the investments made in sustainable corporate development, the Management Board believes that the company remains very well positioned for future growth. Based on the forecasted continuation of overall economic growth in the core sales markets of IONOS, the ongoing digitalization and increasing importance of artificial intelligence, and the stable business model based primarily on electronic subscriptions, the Management Board continues to expect a positive development of the key financial and nonfinancial performance indicators.

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Subsequent events

No events of particular significance occurred at IONOS after the balance sheet date of September 30, 2025, that would have a material impact on the Group's financial position, results of operations, or cash flows and would require disclosure in accordance with the accounting and reporting principles applied by the Group.

Risk and opportunity report

IONOS' risk and opportunity policy is geared toward maintaining and sustainably increasing the value of the company by seizing opportunities and identifying and managing risks at an early stage. Risk and opportunity management regulates the responsible handling of uncertainties that are always associated with entrepreneurial activity.

Overall statement by the Executive Board on the Group's risk and opportunity situation

The assessment of the overall risk situation is the result of a consolidated analysis of all significant risk areas and individual risks, taking into account their interdependencies.

The overall risk and opportunity situation remained largely stable in the first nine months of 2025 compared with the risk and opportunity reporting in the 2024 consolidated financial statements.

Compared to December 31, 2024, there was an increase in three risk areas in the first three quarters of 2025, while two other risk areas saw a reduction.

The risk area "Business Development & Innovation" has been upgraded to Moderate. This reflects the general risks associated with technological change that are inherent in the business model.

In the risk area "Regulatory Environment," the risk assessment was adjusted from Moderate to Significant. The current assessment reflects changes in the framework conditions and developments in this area.

The successful implementation of planned measures led to a reduction in the risk area "Partner Management" to a rating of Low.

A further reduction to low occurred in the risk area "legal disputes." This reduction is due to the closure of risks related to potential licensing issues.

The risk area "Tax risks" was classified as significant. The classification was adjusted upwards due to the increasingly complex regulatory and international tax framework.

No risks threatening the existence of IONOS were apparent during the reporting period or at the time of preparing this quarterly report, either from individual risk positions or from the overall risk situation.

IONOS addresses these risks through the continuous expansion of its risk management system and, where appropriate, minimizes them by implementing specific measures.

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Forecast Report

Forecasts for fiscal year 2025 specified

We confirm our forecast, which previously referred to our remaining core business, "Digital Solutions & Cloud". Adjusted for currency effects, revenue is expected to grow by approximately 8% in fiscal year 2025 (2024: €1,248.1 million), with an adjusted EBITDA margin of approximately 35% (2024: 32.9%). Adjusted EBITDA in the remaining core business is expected to increase by approximately 17% to approximately €480 million (2024: €410.4 million).

Forward-looking statements and forecasts

This quarterly report contains forward-looking statements based on the current expectations, assumptions, and forecasts of the Management Board of IONOS Group SE and the information currently available to it. Forward-looking statements are subject to various risks and uncertainties and are based on expectations, assumptions, and forecasts that may not prove to be accurate in the future. IONOS does not guarantee that the forward-looking statements will prove to be correct and does not undertake any obligation to update or revise the forward-looking statements contained in this interim report.

Notes to the Quarterly Statement

Company information

The IONOS Group, with IONOS Group SE as its publicly traded parent company (hereinafter referred to as "IONOS Group SE" or, together with its subsidiaries, "IONOS Group"), is a leading European Internet specialist in the hosting business. The Group also develops applications for Internet use. The IONOS Group consists of various companies in Germany and abroad.

IONOS Group SE has its registered office in 56410 Montabaur, Elgendorfer Straße 57, Germany, and is registered with the local court there under HRB 25386.

The shares of IONOS Group SE have been listed on the regulated market of the Frankfurt Stock Exchange since February 8, 2023. As of September 30, 2025, United Internet AG held 63.8% of the shares in IONOS Group SE. As of September 30, 2025, 36.2% of the shares are in free float. Of these, IONOS Group SE holds 0.8% of its treasury shares.

Significant accounting, measurement and consolidated principles

The quarterly report of IONOS Group SE as of September 30, 2025, like the consolidated financial statements as of December 31, 2024, has been prepared in accordance with International Financial Reporting Standards (IFRS) as adopted by the European Union (EU).

The quarterly report does not constitute interim reporting within the meaning of IAS 34. The accounting and valuation principles applied in this quarterly report are generally consistent with the methods applied in the previous year, with the exception of the new standards that are mandatory, and should be read in the context of the consolidated financial statements as of December 31, 2024.

Mandatory adoption of new accounting standards

The following standards must be applied for the first time in the EU for the fiscal year beginning on or after January 1, 2025:

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Standard Mandatory
application for fiscal Takeover by
years starting from EU Commission
IAS 21 Amendment: insufficient convertibility of a currency Jan. 1, 2025 Yes

The initial application of the new accounting standards did not have any significant impact on this interim financial report.

Use of estimates and assumptions

In preparing this quarterly statement, management makes judgments, estimates and assumptions that affect the reported amounts of revenues, expenses, assets and liabilities, and the disclosure of contingent liabilities at the reporting date. However, the uncertainty associated with these assumptions and estimates could lead to results that may require material adjustments to the carrying amounts of the assets or liabilities affected in the future.

Miscellaneous

This quarterly report includes all significant subsidiaries and associated companies.

The scope of consolidation remained unchanged compared with the consolidated financial statements as of December 31, 2024.

This Interim Statement was not audited in accordance with §317 of the German Commercial Code (HGB) or reviewed by an auditor.

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INTERIM FINANCIAL STATEMENT AS OF SEPTEMBER 30, 2025

Consolidated statement of financial position

Consolidated statement of comprehensive income

Consolidated cash flow statement

Consolidated statement of changes in equity

FINANCIAL CALENDAR / IMPRINT

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Consolidated statement of financial position as of September 30, 2025, in €k

September 30, December 31,
2025 2024
ASSETS
Current assets
Cash and cash equivalents 23,132 30,180
Trade accounts receivable 61,731 91,492
Receivables from related parties 50,618 88,487
Contract assets 6,358 9,235
Inventories 143 54
Prepaid expenses 35,274 26,684
Other financial assets 22,446 16,306
Other non-financial assets 954 939
Income tax claims 16,559 6,262
Assets held for sale 15,172 0
232,386 269,639
Non-current assets
Investments in associated companies 897 2,407
Receivables from finance leases 2,242 2,509
Other financial assets 5,787 761
Property, plant and equipment 285,765 315,402
Intangible assets
Other intangible assets 128,489 145,610
Goodwill 824,918 830,144
Contract assets 23 22
Prepaid expenses 34,242 26,122
Deferred tax assets 45,384 50,970
1,327,747 1,373,947
Total assets 1,560,133 1,643,586

{24}------------------------------------------------

Consolidated statement of financial position as of September 30, 2025, in €k

September 30,2025 December 31,2024
LIABILITIES
Current liabilities
Trade accounts payable 65,635 112,311
Liabilities to related parties 6,347 6,280
Liabilities due to banks 9,407 102
Income tax liabilities 62,619 35,798
Contract liabilities 98,751 92,653
Other provisions 430 640
Other financial liabilities 44,590 58,077
Other non-financial liabilities 42,185 54,251
Liabilities associated with assets held for sale 18,821 0
348,785 360,112
Non-current liabilities
Liabilities due to banks 798,504 797,577
Liabilities to related parties 0 170,000
Deferred tax liabilities 42,447 42,827
Contract liabilities 2,859 2,112
Other provisions 2,978 3,271
Other financial liabilities 98,900 108,927
945,689 1,124,714
Total liabilities 1,294,473 1,484,826
EQUITY
Issued capital 140,000 140,000
Reserves 181,550 41,672
Treasury shares –28,906 –12,172
Währungsumrechnungsdifferenz –27,136 –10,884
Equity attributable to shareholders of the parent company 265,508 158,616
Non-controlling interests 152 144
Total equity 265,660 158,760
Total liabilities and equity 1,560,133 1,643,586

{25}------------------------------------------------

Consolidated statement of comprehensive income

for the period from January 1 to September 30, 2025, in €k

2025January -September 2024January -September
Revenue from contracts with customers 948,139 889,022
Revenue from contracts with related parties 32,102 34,073
Total revenue 980,241 923,095
Cost of sales –398,684 –399,006
Gross profit 581,557 524,089
Selling expenses –240,835 –234,415
General and administrative expenses –74,349 –72,466
Impairment losses on receivables and contract assets –11,754 –13,100
Other operating income / expenses 17,717 5,062
Operating result 272,336 209,169
Financial result –48,065 –57,104
Share of the profit or loss of associates accounted for using the equity method –244 –244
Pre-tax result 224,027 151,822
Income taxes –76,758 –57,459
Net Income after taxes from continuing operations 147,269 94,363
Net Income after taxes from discontinued operations 28,978 28,252
Net income 176,247 122,615
thereof attributable to
non-controlling interests 8 4
shareholders of IONOS Group SE 176,239 122,611
Result per share of shareholders of IONOS Group SE (in €)
basic 1.27 0.88
diluted 1.25 0.87
thereof result per share (in €) - from continued operations
basic 1.06 0.68
diluted 1.04 0.67
thereof result per share (in €) - from discontinued operations
basic 0.21 0.20
diluted 0.21 0.20
Weighted average of outstanding shares (in thousand units)
basic 138,847 139,533
diluted 141,011 141,704

{26}------------------------------------------------

Reconciliation to total comprehensive income
Net income 176,247 122,615
Items that may be reclassified subsequently to profit or loss
Currency translation adjustment - unrealized –16,252 4,339
Other comprehensive income –16,252 4,339
Total comprehensive income 159,994 126,954
thereof attributable to
non-controlling interests 8 4
shareholders of IONOS Group SE 159,986 126,950
- continued operations 134,101 98,993
- discontinued operations 25,885 27,957

{27}------------------------------------------------

Consolidated cash flow statement

for the period from January 1 to September 30, 2025, in €k

2025January to 2024January to
in €k September September
Net income 176,247 122,615
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization of intangible assets and property, plant and equipment 66,541 66,547
Depreciation and amortization of assets resulting from business combinations 14,763 15,443
Employee expenses from share-based payment programs 4,603 4,593
Payments from share-based payment programs –16,226 –99
Share of the profit or loss of associates accounted for using the equity method 1,357 454
Distributed profits of associated companies 0 116
Income from the sale of associated companies 153 0
Other non-cash items from changes in deferred tax position 402 1,767
Other non-cash items –75 0
Income/Loss from the sale of intangible assets and property, plant and equipment 37 –59
Non-cash change in purchase price derivative 10,347 11,773
Interest expenses 48,108 47,561
Cash flow before changes in balance sheet items (subtotal) 306,257 270,711
Change in receivables and other assets –2,957 –11,964
Change in inventories –135 –153
Change in contract assets 2,877 –997
Change in prepaid expenses –17,528 –10,075
Change in trade accounts payable –32,352 –7,183
Change in receivables from/liabilities to related parties 369 –1,818
Change in other provisions –479 –507
Change in income tax liabilities 27,041 28,847
Change in other liabilities 4,204 9,256
Change in contract liabilities 6,920 9,587
Change in assets and liabilities, total –12,041 14,993
Cash flow from operating activities 294,216 285,704

{28}------------------------------------------------

2025 2024
January to January to
in €k September September
Cash flow from investing activities
Cash payments to acquire property, plant and equipment and intangibles –40,518 –56,313
Cash receipts from sales of property, plant and equipment and intangibles 593 890
Cash payment from the earn-out Strato –34,000 0
Cash payment for the acquisition of equity interests –5,029 0
Cash receipts from sales of financial assets 3 0
Payments within the framework of cash pooling 37,695 –60,552
Cash flow from investing activities –41,257 –115,975
Cash flow from financing activities
Purchase of treasury stock –36,577 –22,319
Cash proceeds from loans –170,000 –100,000
Payments for interest on loans –37,876 –38,408
Redemption of lease liabilities –11,309 –11,138
Cash flow from financing activities –255,762 –171,865
Net increase / decrease in cash and cash equivalents –2,804 –2,135
Cash and cash equivalents at beginning of period 30,180 22,652
Currency translation adjustments of cash and cash equivalents –765 49
Cash and cash equivalents at end of period 26,611 20,566

{29}------------------------------------------------

Consolidated statement of changes in equity

for the period from January 1 to September 30, 2025, in €k

Treasury
in €k Issued capital Reserves share
Balance as of January 1, 2024 140,000 –122,222 0
Net income 0 122,615 0
Other comprehensive income 0 0 0
Total comprehensive income 0 122,615 0
Purchase of Treasury shares 0 0 –22,319
Issue and use of treasury shares 0 0 8,619
Issue of treasury shares as
part of share-based payment programs 0 –1,439 1,439
Employee stock ownership program 0 –11,842 0
Balance as of September 30, 2024 140,000 –12,888 –12,261
Balance as of January 1, 2025 140,000 41,672 –12,172
Net income 0 176,239 0
Other comprehensive income 0 0 0
Total comprehensive income 0 176,239 0
Purchase of Treasury shares 0 0 –36,577
Issuance of Treasury shares in connection with the
employee stock ownership program 0 –34,520 19,843
Employee stock ownership program 0 –1,841 0
Balance as of September 30, 2025 140,000 181,550 –28,906

{30}------------------------------------------------

Currency translation Equity attributable to shareholders of Non-controlling
in €k adjustment the parent company interests Total equity
–20,697 –2,919 138 –2,781
0 122,611 4 122,615
4,339 4,339 0 4,339
4,339 126,950 4 126,954
0 –22,319 0 –22,319
0 8,619 0 8,619
0 0 0 0
0 -11,842 0 -11,842
–16,358 98,489 142 98,631
–10,884 158,616 144 158,760
0 176,239 8 176,247
–16,252 –16,252 0 –16,252
–16,252 159,987 8 159,995
0 –36,577 0 –36,577
0 –14,677 0 –14,677
0 –1,841 0 –1,841
–27,136 265,508 152 265,660

{31}------------------------------------------------

FINANCIAL CALENDAR

27 March 2025 Publication of 2024 annual financial statements

12 May 2025 Quarterly Statement Q1 2025

13 May 2025 Annual General Meeting 2025, Alte Oper / Frankfurt/Main

07 August 2025 6-Month Report 2025

11 November 2025 Quarterly Statement Q3 2025

IMPRINT

Publisher and Copyright © 2025

IONOS Group SE Elgendorfer Str. 57 56410 Montabaur Germany www.ionos-group.com

Contact

Investor Relations

E-Mail: [email protected]

Register court: Montabaur HRB 25386

Note:

Due to calculation processes, tables and references may produce rounding differences from the mathematically exact values (monetary unites, percentage statements, etc.).

This quarterly statement is available in German and English. Both versions are also available for download on the internet at www.ionos-group.com. In case of doubt, the German version shall prevail.

For better readability, the masculine form is used for gender-specific terms in the Quarterly Statement. IONOS points out that the use of the masculine form is to be understood explicitly as gender independent.

Produced in-house with Firesys

{32}------------------------------------------------

Disclaimer

This Interim Statement contains forward-looking statements which reflect the current views of IONOS Group SE's management with regard to future events. These forward-looking statements are based on our

currently valid plans, estimates and expectations. Forward-looking statements are only based on those facts valid at the time when the statements were made. Such statements are subject to certain risks and uncertainties and other factors, many of which are beyond IONOS' control, that could cause actual results to differ materially from those expressed in the forward-looking statements. Such risks, uncertainties and other factors are described in detail in the Risk Report section of the Annual Reports of IONOS Group SE. The IONOS Group SE does not intend to revise or update such forward-looking statements.

{33}------------------------------------------------

IONOS Group SE

Elgendorfer Straße 57 56410 Montabaur

www.ionos-group.com