Tetra Tech, Inc. was founded in 1966 to provide engineering services related to waterways, harbors, and coastal areas. For 50 years, the Company has substantially increased the size and scope of its business and expanded its service offerings through a series of strategic acquisitions and internal growth.

Today, Tetra Tech is a leading provider of consulting and engineering services.

From the beginning, Tetra Tech has attracted the best and brightest minds in science and engineering, and has always focused on bringing innovative solutions to our clients' most complex needs.

Today, Tetra Tech has 16,000 associates located in 400 offices worldwide.

Tetra Tech is based in Pasadena, California.