ARCADIS (NASDAQ: ARCAF; EURONEXT: ARCAD), the international consulting and engineering company, today announced that the Company's Annual General Meeting of Shareholders on May 16, 2007 has reappointed Mr. Gerrit Ybema to the Company's Supervisory Board. An Extraordinary Shareholders Meeting was also announced.

Mr. Ybema was State Secretary for Economic Affairs in the second cabinet headed by Prime Minister Wim Kok, with a special focus on foreign trade. He has a broad knowledge and experience in governmental affairs, particularly on economic issues. In addition Mr. Ybema took several initiatives related to Socially Responsible Ventures (SRV).

The vote for changes in the Articles of Association was not valid, as not enough shares were present in the meeting. For that reason, an Extraordinary General Meeting of Shareholders will be held on June 5, 2007.

ARCADIS is an international company providing consultancy, engineering and management services in infrastructure, environment and facilities, to enhance mobility, sustainability and quality of life. ARCADIS develops, designs, implements, maintains and operates projects for companies and governments. With more than 11,000 employees and over €1.2 billion in gross revenue, the company has an extensive international network that is supported by strong local market positions.

Except for historical information contained herein, the statements in this release are forward-looking statements that are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve known and unknown risks and uncertainties that may cause the company's actual results in future periods to differ materially from forecasted results. Those risks include, among others, risks associated with possible changes in environmental legislation and risks with regard to the Company's ability to acquire and execute projects. These and other risks are described in ARCADIS' filings with the Securities and Exchange Commission over the last 12 months, copies of which will be available from the SEC or may be obtained upon request from the Company.