Quest Diagnostics reviews

3.2

48% would recommend to a friend

(5,688 total reviews)

Jim Davis

56% approve of CEO

47% positive business outlook

Quest Diagnostics has an employee rating of 3.2 out of 5 stars, based on 5,688 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 Healthcare industry (3.5 stars).

Reviews by job title

6K reviews
5.0
Aug 26, 2025

Good organization

Recommend
CEO approval
Business Outlook

Pros

It's been 4+ years at Quest Diagnostics, it is a roller coaster ride, very good work culture and good learning opportunities. management is supportive and good job stability.

Cons

nothing much to say, very negligible

5.0
Aug 26, 2025
Recommend
CEO approval
Business Outlook

Pros

One of the finest health care product company, job security and good benefits. Higher management is very supportive and takes care of the employees. Good learning opportunities.

Cons

I don't see much, so far all good

5.0
Aug 26, 2025
Recommend
CEO approval
Business Outlook

Pros

Quest Diagnostics truly stands out as an employer that invests in its people. The company provides excellent opportunities for career growth with structured development programs, internal mobility, and mentorship support. Employees are encouraged to upskill, take on new challenges, and explore cross-functional roles. Leadership is approachable and values long-term employee success. The culture promotes continuous learning and professional development, making it a great place to build a lasting career.

Cons

Like any large organization, processes can sometimes be slow due to scale, but the growth opportunities and support systems outweigh this.

Viewing 5482 - 5484 of 5,688 Reviews

Glassdoor has 6,079 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.