Mid Cities Engineering

AECOM 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. AECOM also provides technical support, international development assistance, and mining and power services. AECOM is headquartered in Los Angeles and operates additional offices throughout the United States., Canada, Asia, the Middle East, Africa, Australia and Europe.

Tetra Tech is one of the leading providers of specialized management consulting and technical services. The company focuses on the areas of resource management, infrastructure, and communications. Tetra Tech was founded to provide engineering services related to waterways, harbors and coastal areas. The company has since increased the size and scope of its business and expanded its service offerings through a series of strategic acquisitions and internal growth. Tetra Tech provides environmental services, water and wastewater management, infrastructure services, security design and outsourced technical services. The company had nearly 7,500 employees located in more than 250 offices throughout the world. Tetra Tech was founded in 1966 and is based in Pasadena, Calif.

Since 1971, SEAL Laboratories has worked on a vast range of products and has been involved in many of the most challenging projects that have faced industry. The company has examined moon rocks and archaeological artifacts; developed components for athletic shoes; and space telescopes, tested and performed quality-control testing on toys, beverage containers, magnetic media and microelectronics for satellites, rocket launchers and personal computers. SEAL s reputation has been unmatched in serving Fortune 500 companies in the United States and clients worldwide. SEAL Laboratories has grown, both in scope and in depth, by broadening its spectrum of analytical techniques and consulting services and by providing the personnel and equipment to back up and support needs in time-critical situations. SEAL Laboratories has an office in El Segundo, Calif.