Changes in Supervisory Board of ARCADIS

AMSTERDAM - ARCADIS (EURONEXT: ARCAD), the international consultancy, design and engineering company, today announced that the Company’s Annual General Meeting of Shareholders on May 7, 2009 has appointed Ms Ruth Markland to the Company’s Supervisory Board. The meeting also reappointed Mr George R. Nethercutt Jr. for a second four year term.

Ms Markland is a lawyer and has worked for many years for the prestigious British Freshfields law firm in Asia as a lawyer/partner and as a managing partner in its Hong Kong and Singapore business units. Ms Markland consequently has broad knowledge of Asia, an important market for ARCADIS. Ms Markland has always been active in the professional services sector and as a lawyer was involved in diverse legal issues and in corporate law in a more general sense. Ms Markland will become a member of the ARCADIS Audit Committee.

About us:

ARCADIS is an international company providing consultancy, design engineering and management services in infrastructure, environment and buildings, to enhance mobility, sustainability and quality of life. ARCADIS develops, designs, implements, maintains and operates projects for companies and governments. With more than 14,000 employees and over EUR1.7 billion in gross revenue, the company has an extensive international network that is supported by strong local market positions. Visit us on the internet: www.arcadis-global.com

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Source: ARCADIS NV

For more information contact: Joost Slooten at ARCADIS at +31-26-3778604 or e-mail at j.slooten at arcadis.nl.