History

History

Tetra Tech, Inc. was founded in 1966 to provide engineering services related to waterways, harbors and coastal areas. Over the past 40 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.

Tetra Tech now provides environmental services, water/wastewater management, infrastructure services, security design, and outsourced technical 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 approximately 10,000 employees located in more than 280 offices worldwide.

Tetra Tech is based in Pasadena, California.

Important Dates

1966 Tetra Tech's predecessor is founded.

1969 A wave lab is opened.

1973 Tetra Tech launches the first remote control submarine for exploration and military applications.

1979 Tetra Tech analyzes data and explores Alaska's North Slope for oil.

1982 Tetra Tech is acquired by Honeywell.

1985 Tetra Tech is awarded its first national water quality program.

1988 Through a leveraged buy-out, the company's management team purchases Tetra Tech from Honeywell. The company has about 300 personnel.

1989 Tetra Tech expands its groundwater capability.

1991 Tetra Tech completes its initial public offering. The company primarily provides services in the Resource Management business area.

1992 U.S. Department of Energy awards Tetra Tech a nuclear weapons configuration contract.

1993 U.S. Air Force awards Tetra Tech a nationwide National Environmental Policy Act (NEPA) contract.

1994 U.S. Navy awards Tetra Tech a CLEAN II 10-year, $330 million contract.

1995 Tetra Tech establishes its Infrastructure Services business segment.

1997 Tetra Tech establishes its Communications Services business segment.

1999 Tetra Tech's research and development group creates U.S. Environmental Protection Agency (EPA) BASINS model to enable watershed management approach.

2003 Tetra Tech establishes its Systems Support and Security business to apply its skills to the growing homeland security concern.

2007 Tetra Tech expands its alternative energy capabilities.