A US consulting and engineering services company. Constructed parts of the US-Mexico border fence in Arizona, California, New Mexico, and Texas.
Tetra Tech Inc is a consulting and engineering services firm based in Pasadena, CA. It was one of four companies awarded a $460 million contract with the U.S. Army Corps of Engineers to construct a wall on the U.S.-Mexico border in 2007. Under the scope of the contract, Tetra Tech built sections of the border fence near El Paso, TX, San Diego, CA, Santa Teresa, NM, and Tucson, AZ.