Tetra Tech reviews

3.7

73% would recommend to a friend

(1,913 total reviews)
avatar

Dan L. Batrack

71% approve of CEO

63% positive business outlook

Tetra Tech has an employee rating of 3.7 out of 5 stars, based on 1,913 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
3.0
Mar 25, 2026
Recommend
CEO approval
Business Outlook

Pros

Clients and projects ranged across the many different states, worked with a diverse group of professionals; remote working; some opportunities for work-related travel

Cons

Time off policy: Seven company holidays per year may be national holidays but employees were required to use their accrued PTO on those days. And while the company states that employees can purchase additional PTO at the start of each year, those purchased hours are accrued each pay period over the course of the whole year. Unclear BD practices created a severe shortage of work/assignments, and company policy states that employees must use PTO if no available work is assigned. High turnover rate of project managers created confusion and challenges when taking over their projects/assignments.

4.0
Mar 20, 2026
Recommend
CEO approval
Business Outlook

Pros

Travel, offsite staff support, opportunities to work at other regions

Cons

Long hours, may need to drop what you’re doing to respond to a ER

4.0
Mar 20, 2026

Great company-Love my team

Recommend
CEO approval
Business Outlook

Pros

Working at Tetra Tech has been such a rewarding experience, and what truly sets it apart is the people. From day one, I’ve been surrounded by colleagues who are not only incredibly knowledgeable and talented, but also genuinely supportive and collaborative. There’s a strong sense of teamwork here—people are always willing to share ideas, lend a hand, and celebrate each other’s successes. The culture encourages growth, open communication, and respect across all levels, which makes a huge difference in day-to-day work. Leadership is approachable and invested in both project success and employee development, and that creates an environment where you feel valued and motivated. It’s rare to find a workplace where you enjoy both the work and the people you work with, but Tetra Tech really delivers on that. The team makes even challenging projects feel manageable—and often even fun.

Cons

benefits-paid time off is not the best (but they offer flexibility) and the insurance is mid.

Viewing 541 - 543 of 1,913 Reviews

Glassdoor has 2,489 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.