Tetra Tech reviews

3.8

74% would recommend to a friend

(1,900 total reviews)
avatar

Dan L. Batrack

74% approve of CEO

65% positive business outlook

Tetra Tech has an employee rating of 3.8 out of 5 stars, based on 1,900 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Tetra Tech employee rating is in line with the average (within 1 standard deviation) for employers within the Construction, repair and maintenance industry (3.7 stars).

Reviews by job title

2K reviews
5.0
Apr 10, 2026

good

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

good company to work with

Cons

little stressfull working environment sometimes

5.0
Nov 13, 2025

Review

Recommend
CEO approval
Business Outlook

Pros

Supportive Environment, good support from head office

Cons

Old office building, aged equipment

Viewing 1 - 3 of 1,900 Reviews

Glassdoor has 2,473 Tetra Tech reviews submitted anonymously by Tetra Tech employees. Read employee reviews and ratings on Glassdoor to decide if Tetra Tech is right for you.