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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)
avatar

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
1.0
May 14, 2026
Recommend
CEO approval
Business Outlook

Pros

It was a nice place when I started there. Now it’s like making hinges all day.

Cons

Now run by jock hatchet men that are beholden to the institutional investors. Why not replace LTEs with cheaper younglings?

4.0
May 14, 2026
Recommend
CEO approval
Business Outlook

Pros

worked 3 days a week.

Cons

Crazy days, could never leave on time.

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Charles River Laboratories Response
2w
We’re continuously working to support a healthier work-life balance for our employees. We understand that demands can vary by role and site, and we’re exploring ways to offer more flexibility and improve overall workload management.
Viewing 13 - 15 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.