Avantor reviews

2.9

40% would recommend to a friend

(1,284 total reviews)

Emmanuel Ligner

41% approve of CEO

31% positive business outlook

Avantor has an employee rating of 2.9 out of 5 stars, based on 1,284 company reviews on Glassdoor which indicates that most employees have an average working experience there. The Avantor 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

1K reviews
3.0
Jul 8, 2026

Opportunities to take on diverse roles, but unclear progression

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Very lean organisation chart means you have a lot of room to do many things

Cons

Unclear pathway when it comes to career progression, lacking medical coverage and flexi benefits that can be improved

Viewing 4 - 6 of 1,284 Reviews

Glassdoor has 1,444 Avantor reviews submitted anonymously by Avantor employees. Read employee reviews and ratings on Glassdoor to decide if Avantor is right for you.