Quest Diagnostics reviews

3.2

52% would recommend to a friend

(5,665 total reviews)

Jim Davis

58% approve of CEO

49% positive business outlook

Quest Diagnostics has an employee rating of 3.2 out of 5 stars, based on 5,665 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Quest Diagnostics employee rating is in line with the average (within 1 standard deviation) for employers within the Salud industry (3.4 stars).

Reviews by job title

6K reviews
5.0
Mar 11, 2026

Good place to work

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Good Managers and very collaborative environment

Cons

Can be disorganized at times

3.0
Mar 7, 2026
Recommend
CEO approval
Business Outlook

Pros

- Coworkers are great - Immediate lead/supervisor/management in core lab is great

Cons

- Limited OT - Limited upward movement for pay

2.0
Mar 7, 2026
Recommend
CEO approval
Business Outlook

Pros

Quest is a huge organization and bioinformatics team is only a small part of team.

Cons

Leadership should have forward vision about bioinformatics team and trust people who are working in the team

Viewing 34 - 36 of 5,665 Reviews

Glassdoor has 6,056 Quest Diagnostics reviews submitted anonymously by Quest Diagnostics employees. Read employee reviews and ratings on Glassdoor to decide if Quest Diagnostics is right for you.