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Charles River Laboratories

Engaged Employer

Charles River Laboratories reviews

3.1

49% would recommend to a friend

(2,372 total reviews)
avatar

Birgit Girshick

66% approve of CEO

33% positive business outlook

Charles River Laboratories has an employee rating of 3.1 out of 5 stars, based on 2,372 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.

2.0
May 24, 2026
Recommend
CEO approval
Business Outlook

Pros

Flexibility in schedules, especially summer

Cons

No support from leadership, no growth, constantly pushing back raises and promotions

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Charles River Laboratories Response
1mo
At Charles River, our vision is to be the partner of choice in helping clients bring life-saving treatments to patients, and we are well-positioned to deliver on that vision. Like any global organization with a broad portfolio, we occasionally face challenges related to market dynamics, regulatory shifts, and changing client needs. Through it all, our senior leadership remains focused on transparency, regularly sharing business performance, strategic priorities, and long-term goals with employees to ensure alignment and confidence in our direction.
Viewing 13 - 15 of 2,372 Reviews

Glassdoor has 2,663 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.