Tri-Tech Surveying Co. was started in 1994 by Larry Hoffman. His vision was to have a business that provided a wide range of engineering, surveying and planning services for commercial and residential clients. The company has grown and is now comprised of Tri-Tech Surveying Co. and Tri-Tech Engineering, which both work together to provide clients with services they need under one trusted brand. Tri-Tech has offices in Houston and San Marcos.