AECOM subsidiaries

Savannah River Remediation, LLC operates the Savannah River Site liquid waste complex and remediates radioactive and hazardous underground waste tanks. The company was incorporated in 2007 and is based in Aiken, South Carolina.

AECOM C&E, Inc., doing business as AECOM Environment, provides environmental consulting, engineering, remediation, and construction services. Its services include pollution prevention, environmental management, end-of-pipe treatment system design, regulatory analysis, compliance documentation, risk assessment, site investigations, feasibility studies, engineering design, and construction management. The company serves clients in government and private sectors. AECOM C&E, Inc. was formerly known as AECOM, Inc. and changed its name to AECOM C&E, Inc. in January 2015. The company was founded in 1968 and is based in Westford, Massachusetts. AECOM C&E, Inc. operates as a subsidiary of AECOM.

Shimmick Construction has become one of the premier general engineering contractors. Shimmick's focus on heavy civil construction has resulted in a wide spectrum of projects, each with its own complex challenges. Our project success spans across all markets, from bridges and water/wastewater treatment facilities to dams, transit/rail and design-build. We own and maintain our own extensive fleet of heavy equipment, cranes and bulldozers. Shimmick is unique in our ability to self-perform all aspects of complex construction assignments. As a result, we produce high quality projects delivered on time and within budget.

Tishman Realty & Construction Co., Inc.

Earth Tech is a company committed to delivering superior solutions and extraordinary customer service to commercial construction and heavy civil projects throughout the Southeast. Since 1991, Earth Tech has earned a reputation as the leader in soil stabilization and ground improvement solutions. Their track record of successfully completed ground improvement techniques and deep foundation systems for stabilization projects testifies to Their extensive experience, technical proficiency and exceptional quality. When it comes to solving soil and foundation related problems, Earth Tech is the company you can depend on.

Hunt is well-positioned to continue its legacy as a leader in the construction industry. Hunt continues to develop and train its team of professionals in order to continue its reputation as unmatched thought leaders and innovators of the industry. The right people. The right results.

Washington River Protection Solutions LLC operates as a subsidiary of URS Corporation.

Washington Closure Company LLC offers sanitary services. The company is based in Boise, Idaho. It operates as a subsidiary of Washington Group International Inc.

Moore Group, Inc. operates as a subsidiary of Infinity Property and Casualty Corp..

Ellerbe Becket, Inc is an architecture, interiors and engineering firm. Minneapolis-based Ellerbe Becket employs 450 people in seven offices in the United States and the Middle East. Its office in Kansas City has 50 employees, including 26 architects. The firm ranks No. 10 on the Kansas City Business Journal's list of area architecture firms.

J.W. Williams, Inc. is primarily engaged in manufacturing machinery and equipment for use in oil and gas fields or for drilling water wells, including portable drilling rigs.

Flint Energy Services, Inc. provides integrated midstream production services to the energy and resource industries. The company's operations are organized into three primary business segments; facility infrastructure, production services, and transportation systems. The company offers the fabrication and installation of oil sands and heavy oil processing plants. Flint Energy Services, Inc. also engages in pipeline construction. The company was formerly known as Flint Energy Construction Co. and changed its name to Flint Energy Services, Inc. in April 2002. Flint Energy Services, Inc. was incorporated in 1998 and is based in Tulsa, Oklahoma. Flint Energy Services, Inc. operates as a subsidiary of AECOM.