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
Feb 17, 2026

Ok overall

Recommend
CEO approval
Business Outlook

Pros

- Good salary and benefits - Nice location - Good place for early career

Cons

- In-office work environment can be toxic: too much gossip, nepotism and favoritism, inappropriate jokes and behaviors are tolerated. - Chaotic, absurd processes - Inflexible in terms of WFH, especially for positions which have been easily done remotely before - Rigid office rules: you could not have your own "place" and leave belongings there, mandatory attendance in the office was checked via an app and in-person by a manager (reminded you of school), even if you had to spend the day alone in the office, since your team was remote. - No chance of growth or learning anything besides daily tasks

Viewing 40 - 42 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.