Tetra Tech reviews

3.8

75% would recommend to a friend

(1,903 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 1,903 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 & Maintenance Services industry (3.7 stars).

Reviews by job title

2K reviews
5.0
Aug 25, 2025

best of both worlds

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

You definitely benefit from the resources, clients, and connections of a large global firm, but there is a nice "small company" feel within most of the individual business units.

Cons

Occasional bureaucracy and slow decision-making when something has to be approved at higher levels.

5.0
Aug 22, 2025

Good experience

Recommend
CEO approval
Business Outlook

Pros

Well-managed, strong corporate position and cash-rich, good job security.

Cons

Can be difficult at senior levels to get promoted.

Viewing 112 - 114 of 1,903 Reviews

Glassdoor has 2,477 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.