News Release

AECOM Merges with ENSR International

Transaction Leverages Diverse Environmental Health and Safety Capabilities for Global Market

LOS ANGELES (Sept. 6, 2005) — AECOM, the global design and management company, has merged with ENSR International, a worldwide provider of comprehensive environmental health and safety management services. The merger combines AECOM's extensive water/wastewater and environmental management capabilities with ENSR's multidiscipline environmental expertise, extending both companies' service lines and global reach. ENSR International will operate as an AECOM company under the ENSR name.

“The transaction will enable us to better serve the growing global environmental market and brings together two companies with extensive capabilities and complementary cultures,” said John M. Dionisio, chief operating officer of AECOM, a company with 20,000 employees and annual revenues of $2 billion.

ENSR is an environmental consulting, engineering, and remediation company with 1,600 staff in 70 offices, $200 million in revenue, and project experience in 100 countries.  Headquartered in Westford, Massachusetts, ENSR provides air and water quality, hazardous waste/site closure, permitting, due diligence, and environmental health and safety management services for multinational industrial clients in the energy, oil and gas, chemical, aerospace, and other industrial and manufacturing sectors as well as to government agencies.

ENSR CEO and President Robert Weber, with the firm since 1981, will continue to lead ENSR. “We are extremely positive about becoming part of AECOM,” Weber said. “Maintaining ENSR's strong presence in the marketplace and leveraging AECOM's global resources, broad professional services, and program management expertise brings significant benefits to our clients.” Weber added, “With AECOM leadership and support, ENSR is well positioned for continued strong growth and environmental leadership.”