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
1.0
Feb 27, 2026

Avoid at all Costs

Recommend
CEO approval
Business Outlook

Pros

Stable job if you're willing to have no structure and toxic leadership that will contract you out but then get upset if you actually do your job as a contractor

Cons

Toxic, unstructured, no long term growth potential career wise, CEO is always making layoffs while earning 800K euros a year

2.0
Feb 23, 2026

pay

Recommend
CEO approval
Business Outlook

Pros

get pay good for doing job

Cons

get fired if do not perform well

Viewing 34 - 36 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.