INTERA Incorporated

AdvancedGeo, Inc. is a full-service environmental consulting firm. The company employs a group of experienced geologists, hydrogeologists, engineers and environmental scientists.

URS is one of the largest global engineering design firms and a leading U.S. federal government contractor providing a comprehensive range of professional planning, design, systems engineering and technical assistance, program and construction management and operations and maintenance services. The corporation is a full-service, global organization with offices in the Americas, Asia-Pacific and Europe. URS has more than 28,000 employees in a network of more than 300 offices and contract-specific job sites in 20 countries. Its broad-based expertise is a valued resource for federal, state and local government agencies, as well as businesses in the chemical, manufacturing, pharmaceutical, forest products, mining, oil and gas and utilities industries. URS is structured in two operating divisions: the URS Division and the EG&G Division. Its URS Division provides a full range of planning, design, and program and construction management services to a wide variety of private and public sector clients. The EG&G Division primarily serves U.S. federal government clients, including Department of Defense agencies such as the Army, Navy and Air Force and the Department of Homeland Security. EG&G specializes in planning, systems engineering and technical assistance, and operations and maintenance services. URS Corporation headquarters is in San Francisco.

Founded in 1944, Parsons Corporation is one of the largest employee-owned management, engineering and construction companies in the United States. It provides technical and management solutions to federal, regional and local government agencies, as well as private industries worldwide. The company s services include operating protocol development, asset management, condition assessment, conceptual development, financial and market analysis, site development and environmental remediation construction. Parsons Corporation also offers logistics management, bombing range remediation, unexploded ordnance detection and characterization and military family housing services. The company has undertaken several projects, such as Salt Water Processing Facility Phase II, Aiken, S.C.; Integrated Construction Program, Denver; and Tacoma Second Supply Project. It serves clients in a variety of markets, such as infrastructure, transportation, water, telecommunications, aviation, commercial, environmental, industrial manufacturing, education, health care, life sciences and homeland security. Parsons Corporation maintains a location in Walnut Creek, Calif.