Arcadis NV — Interim / Quarterly Report 2022

May 4, 2022

Continued strong organic revenue and record backlog

Arcadis Q1 2022 Trading Update

May 4th, 2022

Disclaimer

Statements included in this presentation that are not historical facts (including any statements concerning investment objectives, other plans and objectives of management for future operations or economic performance, or assumptions or forecasts related there to) are forward-looking statements. These statements are only predictions and are not guarantees. Actual events or the results of our operations could differ materially from those expressed or implied in the forward-looking statements. Forward-looking statements are typically identified by the use of terms such as "may," "will", "should", "expect", "could", "intend", "plan", "anticipate", "estimate", "believe", "continue", "predict", "potential" or the negative of such terms and other comparable terminology.

The forward-looking statements are based upon our current expectations, plans, estimates, assumptions and beliefs that involve numerous risks and uncertainties. Assumptions relating to the foregoing involve judgments with respect to, among other things, future economic, competitive and market conditions and future business decisions, all of which are difficult or impossible to predict accurately and many of which are beyond our control. Although we believe that the expectations reflected in such forward-looking statements are based on reasonable assumptions, our actual results and performance could differ materially from those set forth in the forward-looking statements.

Part 1

Q1 2022 Trading update key messages

Peter Oosterveer | Chief Executive Officer

Sustained strong client demand driven by climate change, energy transition and urbanization

Market environment

• • Increased demand in all three GBAs:
• •Energy transition
• •Environmental restoration
• •Smart mobility

• • Geopolitical tension, increased energy costs, inflation, COVID-19 lockdowns China

• •Organic revenue growth of 5.6%1)

• Record backlog at €2.3 billion. Organic year-on-year backlog growth of 7.6%1)
• • Operating EBITA margin improved to 9.4% (2021: 9.2%)
• •Free cash flow of €-51 million
• • Increased efforts and investments to provide attractive workplace

Results Q1 2022 Strategic progress

• • Successful launch of GBAs, scaling expertise, efforts and solutions globally:
• •International collaboration in bidding
• • Increased knowledge sharing and optimal allocation of expertise

© Arcadis 2022 | Q1 2022 Trading Update 4 1) Underlying growth excluding the impact of currency movements, acquisitions or footprint reductions, such as the Middle East, winddowns or divestments

Introducing the Global Business Areas Resilience

The ability to protect, adapt and improve our natural environment and water resources, while sustainably powering our world for future generations.

Key solutions:

• •Energy transition
• •Environmental restoration
• •Water optimization
• •Enviro-socio permitting
• •Sustainable operations & advisory

Decommissioning of 12 nuclear sites

Magnox | UK

Ecological and biodiversity restoration of the river Meuse

Rijkswaterstaat | Netherlands

Introducing the Global Business Areas Places

Creating smart and sustainable places for owners, investors, users and communities across the real estate sector.

Key solutions:

• • Net zero facilities and sustainable communities
• •Asset life cycle (cost) optimization
• •Industry 4.0 – Facilities of the future
• •Placetech
• •Future Workplace

Net Zero distribution facilities

Hoogvliet | Netherlands

Giga factories for world's largest electric battery producer

EV Automotive clients | Nordics

Introducing the Global Business Areas Mobility

Serve transport owners, operators and contractors to deliver design, asset and program management and new mobility solutions across the world. Creating greener and cleaner solutions.

Key solutions:

• •Connected Highways
• •Intelligent Rail & transit
• •New mobility (EV/CAV)
• •Integrated Airports
• •Resilient Port Infrastructure

New Mobility CAV solutions

Louisiana Department of Transportation | US

North East link road project

Spark consortium | Australia

Financial ResultsPart 2

Virginie Duperat | Chief Financial Officer

Good revenue growth and margin improvement

1) Underlying growth excluding the impact of currency movements, acquisitions or footprint reductions, such as the Middle East, winddowns or divestments 2) Free Cash Flow = Cash flow from operating activities minus capex minus lease liabilities

© Arcadis 2022 | Q1 2022 Trading Update

Accelerated revenue and backlog growth

Net Revenues and Organic Growth1)

Days Sales Outstanding and Net Working Capital (%) Days, %

Operating EBITA (margin)2)

€ millions, %

Net Backlog and Organic Backlog growth (year-on-year)1) € millions, %

1) Underlying growth excluding the impact of currency movements, acquisitions or footprint reductions, such as the Middle East, winddowns or divestments

2) Excluding acquisition, restructuring and integration-related costs

© Arcadis 2022 | Q1 2022 Trading Update 10

Global Business Areas to better serve the needs of our growing client base

Resilience

Net revenue€281M(Q1'21: €251M)

Organic Growth 6.9%1)

• • Accelerated investments from clients in energy transition, and demand for consultancy
• • Increased demand for remediation and environmental restoration services from oil & gas clients
• • Leverage of strong PFAS capabilities US to Belgium

Places

Net revenue€228M(Q1'21: €219M)

Organic Growth 1.1%1)

• Strong growth UK and Australia. China impacted by COVID-19 lockdowns and CallisonRTKL in decline year-on-year from repositioning efforts in 2021

Mobility

Net revenue€179M(Q1'21: €162M)

Organic Growth 9.4%1)

Strong revenue growth driven by US, UK and Australia from iconic projects in Rail, Highways and New Mobility EV & CAV solutions

© Arcadis 2022 | Q1 2022 Trading Update 1) Underlying growth excluding the impact of currency movements, acquisitions or footprint reductions, such as the Middle East, winddowns or divestments

Part 3

Wrap up

Peter Oosterveer| Chief Executive Officer

Summary

• • Sustained robust market conditions, despite geopolitical tensions and high inflation
• •Solid strategic progress
• • Revenue growth, margin improvement and strengthened balance sheet
• • Continued focus and investments in workplace
• • On track to deliver on 2023 strategic targets