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Charles River Laboratories

Engaged Employer

Charles River Laboratories reviews

3.1

48% would recommend to a friend

(2,365 total reviews)
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Birgit Girshick

69% approve of CEO

31% positive business outlook

Charles River Laboratories has an employee rating of 3.1 out of 5 stars, based on 2,365 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Charles River Laboratories employee rating is in line with the average (within 1 standard deviation) for employers within the Pharmaceutical & Biotechnology industry (3.5 stars).

Reviews by job title

2K reviews
2.0
May 25, 2026

Good training for entry-level but messy politics

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Good process and decent training program. Good for entry level.

Cons

Messy political environment with a hatred for PhD. Focus more on vibe than quality of work.

Viewing 4 - 6 of 2,365 Reviews

Glassdoor has 2,656 Charles River Laboratories reviews submitted anonymously by Charles River Laboratories employees. Read employee reviews and ratings on Glassdoor to decide if Charles River Laboratories is right for you.