2021 Top 100

57: Tetra Tech Inc.
Top 100 Revenue: $478,536,000
Defense Revenue: $101,620,000
Civilian Revenue: $376,916,000
2020 Revenue: N/A
2020 Earnings: N/A
2019 Revenue: $3.1 billion
2019 Earnings: $240.5 million adjusted operating income
Number of employees: N/A
Headquarters: Pasadena, Calif.
Website: www.tetratech.com
Leadership: N/A
Ticker: N/A
Lines of business: N/A
Major customers: N/A
Major contracts/projects: N/A
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