General Motors, 301 Freedom Dr, Roanoke, TX 76262, US

Established in 1976, Amtex specializes in the manufacturing of custom buildings. It builds wet and dry commercial and residential units throughout Texas. The company serves educational and financial institutions, as well as the medical, government, construction, commercial and retail industries. Amtex has manufactured a range of buildings, including construction offices, banks, churches and casinos. It works with various dealers, such as Action Mobile, Advanced Modular Space, Murillo Modular Group, Vanguard Modular Building Systems and North American Buildings to assist customers with the purchase, setup and other aspects of owning and leasing their modular buildings. With a team of more than 150 employees, Amtex is located in Garland, Texas.