Denver-Based ARCADIS Ranked among Top AEC Firms in the Nation

ARCADIS (EURONEXT: ARCAD), the international consulting and engineering company, today announced it was ranked as one of the top three fastest-growing architecture, engineering and engineering consulting firms in the United States. The ranking came in the 9th annual Zweig Letter Hot Firm List for 2008 and placed ARCADIS as No. 3 based on percentage growth and Dollar growth. The survey also named ARCADIS as the top large firm in the nation, a designation given to firms with more than 500 employees.

"We are very excited to be ranked at the top of our industry,” said Steve Blake, President and CEO of ARCADIS’ U.S. Operations, based in Highlands Ranch, Colorado. "It is a real point of pride that our staff and management team have performed so well over the past few years and have surpassed many of our competitors. Our aggressive client-focused business model and our active interest in mergers and acquisitions have continued to stimulate sustained economic growth within the company.”

ARCADIS also received special recognition from the Zweig Letter Hot Firm List as the firm with the highest growth on a raw dollar basis: the consulting and engineering company experienced $584 million in growth from 2004 to 2007. When comparing to the Zweig Letter Hot Firm List from 2007, ARCADIS climbed 11 places from its previous rank of 14^th in the nation. In addition, ARCADIS continues to be the top Hot Firm in the state of Colorado.

Management, consulting and research firm Zweig White Information Services identified the 200 fastest-growing U.S. architecture, engineering, and environmental consulting firms for its annual ranking, The Zweig Letter Hot Firm List. This annual list features the design and environmental firms that have outperformed the economy and competitors to become industry leaders. Currently more than 90,000 firms make up the architecture, engineering, and engineering consulting industry.

ARCADIS is an international company providing consultancy, 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 13,500 employees and more than $2 billion in gross revenue, the company has an extensive international network that is supported by strong local market positions.