Penumbra Investments LLC, 7308 Vista Hill Dr, Sachse, TX 75048, US

AECOM Technology Corporation is an international professional technical services company providing consulting, design, program and construction management and operations and maintenance support to the transportation, environmental and building industries. The company serves both government and private clients. Founded in 1990, Aecom is nearly 85 percent employee-owned and is comprised of operating companies that have been in business for nearly 100 years. AECOM also provides technical support, international development assistance, and mining and power services. AECOM Technology Corporation is headquartered in Los Angeles and operates additional offices throughout the United States., Canada, Asia, the Middle East, Africa, Australia and Europe.