Alten

Earnings Release • Jul 27, 2023

PRESS RELEASE

Paris, July 27th 2023 5:40pm

BUSINESS IN FIRST HALF 2023: + 12.2%

• satisfactory organic growth: + 11.4%
• 4 acquisitions overseas

€	H1	H1	YoY
million	2022	2023	Var.
Revenue	1,825.9	2,047.9	+ 12.2%
	598.4 i.e 32.8 %	654.7 i.e 32.0 %	+ 9.4%
Of which France	of total revenue	of total revenue
	1,227.6 soit 67.2 %	1,393.2 i.e 68.0 %	+ 13.5%
Of which International	of total revenue	of total revenue

BUSINESS AT THE END OF JUNE 2023: + 12.2%

Business grows by 12.2%: 9.4% in France and 13.5% overseas. On a like‐for‐like basis and constant exchange rate, business grows by 11.4% (9.4% in France and 12.5% overseas).

In the second quarter, as anticipated, business growth slowed to 8.7%: 6.7% in France; 9.7% overseas. On a like‐ for‐like basis, business growth by 8.6% (6.7% in France and 9.6% overseas).

The second quarter suffered from a negative seasonal effect (–1 business day) compared with 2022, in a more complex economic environment.

Most of verticals areas are growing in particular Civil Aeronautics, Automotive, Defense & Security, Industry and Electronics.

Almost all geographical areas are experiencing strong organic growth.

EXTERNAL GROWTH: 4 ACQUISITIONS OVERSEAS

In US/Canada: One company specialised in testing software (€18M revenue, 185 consultants) In Poland: One company specialised in IT & Telecoms services (€19M, 350 consultants 50 % of which are external) In India/US/Germany: One company specialised in IT development and engineering services (€9M, 500 consultants) In Spain/Germany: One company specialised in aeronautics engineering (€7M, 130 consultants)

OUTLOOK FOR 2023:

Alten achieved satisfactory business growth in the first half of the year; mostsectors and geographical areasremain well oriented. The deceleration in organic growth in the second quarter, after two years of very sustained growth, in a context of post Covid catch up, was anticipated and reflects the normalization of the economy.

Even if the growth rate slightly slows down, ALTEN should achieve a satisfactory organic growth of around 10% in 2023 and will pursue its strategy of targeted external growth.

PUBLICATION OF HALF‐YEAR RESULTS 2023: SEPTEMBER 21ST, 2023 AFTER MARKET CLOSED

About ALTEN

For more information: www.alten.com/investisseurs / Journalists' details: alten@hopscotch.fr

As a European Leader in Engineering and Technology Consulting (ETC), ALTEN carries out design and research projects for Technical and IT divisions of major clients in industry, telecoms and services.

ALTEN's stock is listed in compartment A of the Euronext Paris market (ISIN FR000001946); it is part of the SBF 120, the IT CAC 50 index and MIDCAP100, and is eligible for the deferred Settlement Service (SRD).

Appendix to Press Release:

PRESS RELEASE

Paris, July 27th 2023 5:40pm

Definition of alternative performance measures and reconciliation with IFRS standards

The ALTEN Group uses alternative performance measures especially selected to follow up on its operational activities. The Group has chosen these measures as they supply additional information allowing the users of periodic financial information to have a comprehensive understanding of the Group's performance. Such alternative performance measures are complementary to IFRS standards.

Revenue growth on a like‐for‐like basis (i.e. organic growth)

Growth on a like‐for‐like basis (and constant exchange rate) is calculated excluding the effects of exchange rate variations and the variations of the consolidation scope on a chosen period.

Exchange rate impacts are measured by converting the revenue of the period with the average exchange rate from the previous period.

Scope variation impacts are measured excluding acquisitions, revenue of the period and for transfers, revenue of the previous period, in order to create a scope which is identical to the previous period. This alternative measure enables to identify the real performance of the Group in terms of activity on the chosen period.

This alternative measure enables to identify the real performance of the Group in terms of activity on the chosen period.

Evolution of business in H1 2023

€M	H1 2022 Revenue	H1 2023 Revenue	% Change
Revenue on a like‐for like basis	1,753.6	1,954.2	11.4%
France	598.4	654.7	9.4%
International	1,155.2	1,299.5	12.5%
Scope variation	72.3	109.8	1.6%
France		‐	‐
International	72.3	109.8	2.4%
Exchange rate impact		‐ 16.1	‐ 0.9%
France		‐	‐
International		‐ 16.1	‐ 1.4%
Group Revenue	1,825.9	2,047.9	12.2%
France	598.4	654.7	9.4%
International	1,227.6	1,393.2	13.5%