CDM + Wilbur Smith Associates Combine

compatible values, complementary capabilities and strong commitments to exceptional client service and technical excellence

February 25, 2011

CAMBRIDGE, Massachusetts—CDM and Wilbur Smith Associates (WSA) are pleased to announce the acquisition of WSA by CDM. The combined organization expands both firms’ global, full-service capabilities in water, environment, transportation, energy and facilities.

The integration of CDM and WSA brings together one of the engineering and construction industry’s top water and environment firms with an industry leader in transportation. The addition of WSA’s leading expertise in transportation enhances CDM’s service portfolio and extends the firm’s presence in Asia and the Middle East. Similarly, CDM enhances WSA’s capabilities in water, environment and design-build services. The two firms have compatible cultures and values, complementary capabilities, strong commitments to exceptional client service and technical excellence, and well-matched geographies.

According to Richard D. Fox, CDM Chairman and Chief Executive Officer, “Both firms share a common dedication to putting our clients first and a mission to create innovative, lasting solutions that enhance quality of life, protect the environment and support economic vitality. This provides a solid foundation for coming together. In addition, we have a steadfast commitment to employee ownership, giving us the freedom to maintain that dedication to our clients and provide superior opportunities for our employees.”

“Uniting with CDM promises continued growth for our firms and our employees. CDM values WSA’s leadership in transportation. We will also be looking to WSA’s transportation specialists to advance the expansion of CDM’s transportation services worldwide,” noted M. Stevenson Smith, WSA’s Chairman and CEO. “Together, we create a stronger entity for the future, especially in a time of ongoing consolidation in the industry.”

 With the transaction completed, the firms have begun the important transition process to integrate the two organizations.

CDM is a consulting, engineering, construction and operations firm delivering exceptional service to public and private clients worldwide.

Wilbur Smith Associates is a professional services consulting firm that specializes in transportation, infrastructure and community development planning, engineering and economics.