2017 Top 100

47: Tetra Tech Inc.
Top 100 Revenue: $449,135,000
Defense Revenue: $70,427,000
Civilian Revenue: $378,708,000
2016 Revenue: N/A
2016 Earnings: N/A
2015 Revenue: $2.3 billion
2015 Earnings: $672 million
Number of employees: N/A
Headquarters: Pasadena, Calif.
Website: www.tetratech.com

Dan Batrack, chairman and CEO

Ronald Chu, EVP, resource management and energy, Leslie Shoemaker, EVP, water, environment and infrastructure

Ticker: N/A
Lines of business: Consulting, technical services, design, engineering, program management
Major customers: N/A
Major contracts/projects: Alliant GWAC, LOGWORLD, MOBIS, OASIS, PES