ARCADIS Appoints Lance Josal as CEO for RTKL

AMSTERDAM - ARCADIS (EURONEXT: ARCAD), the international consultancy, design, engineering and management services company, today announced it has named Lance K. Josal FAIA as President and CEO of ARCADIS subsidiary RTKL Associates Inc., the international planning, design and engineering firm. Josal succeeds RTKL’s current President and CEO, David C. Hudson AIA, who is retiring from the firm. The changes will take effect on 1 September 2009.

Josal is a 30-year veteran of RTKL and for the last seven years has directed the firm’s Commercial Practice Group, which accounts for more than 30% of the firm’s gross revenue. Throughout his career, Josal has played an integral role in keeping RTKL at the forefront of the industry. He has been instrumental in RTKL’s expansion into new and emerging markets and in navigating the firm’s core business lines-retail, hospitality and residential-through challenging economic times.

“We are pleased with the outcome of our search,” says Michiel Jaski, a member of the ARCADIS Executive Board who oversees the Buildings business line, of which RTKL is an integral part. “We know Lance will lead RTKL through the economic downturn and continue the expansion of the firm’s global reputation for design excellence. We also know that Lance is building on the solid foundation that Dave Hudson has built, so we owe Dave our thanks and appreciation. We are nothing but optimistic and supportive about future opportunities and synergies.”

About ARCADIS

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 15,000 employees and over EUR 2 billion in gross revenues, the company has an extensive international network that is supported by strong local market positions. Visit us on the internet: www.arcadis-global.com

About RTKL:

RTKL is a worldwide architecture, engineering, planning and creative services organization. Part of the ARCADIS global network since 2007, RTKL specializes in providing its multi-disciplinary services across the full development cycle to create places of distinction and designs of lasting value. RTKL works with commercial, workplace, public and healthcare clients on projects around the globe. www.RTKL.com

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Source: ARCADIS NV

For more information please contact: Joost Slooten of ARCADIS at +31-26-3778604 or outside office hours at +31-6-27061880, or e-mail at j.slooten at arcadis.nl