TTEK vs ASR Comparison

Tetra Tech Inc provides consulting and engineering services for environmental, infrastructure, resource management, energy, and international development markets. It specializes in providing water-related services for public and private clients. It designs infrastructure, facilities, and other structures with complex plans and resource management. it has two reportable segments. Its Government Services Group (GSG) segment includes activities with U.S. government clients (federal, state and local) and activities with development agencies world-wide. Commercial/International Services Group (CIG) segment, which derives maximum revenue, includes activities with U.S. commercial clients and international clients other than development agencies.

Grupo Aeroportuario del Sureste SAB de CV and its subsidiaries hold concessions to operate, maintain, and develop airports in the southeast region of Mexico. As an operator of airports, it charges airlines, passengers, and other users fees for using the airports' facilities. The group also derives rental and other income from commercial activities conducted at its airports, such as the leasing of space to restaurants and retailers. The company's operating segments are Cancun, which generates majority revenue, Aerostar, Airplan, Merida, Villahermosa, Holding and Services, and Others.