Quest Diagnostics reviews

3.2

49% would recommend to a friend

(5,683 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 5,683 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 27, 2025

Best Organization

Recommend
CEO approval
Business Outlook

Pros

Quest Diagnostics is truly one of the best organizations I have worked with. The company has well-structured policies, a supportive work culture, and opportunities to learn and grow across different domains. The rotational shifts are managed effectively, ensuring a good work-life balance

Cons

The overall experience is excellent; however, the effectiveness of the workplace depends significantly on the lead/manager at both GIC and the US. Having a strong, empathetic, and transparent Team Lead and Manager makes all the difference. At times, inconsistencies in people management can affect team morale.

5.0
Aug 27, 2025

Most rewarding organization

Recommend
CEO approval
Business Outlook

Pros

Quest Diagnostics Hyderabad is one of the most rewarding organizations I have been associated with in my 12+ years of professional journey. While the name may not immediately suggest a strong product development presence, the reality is that Quest operates with an impressive technology stack and offers immense opportunities to grow across multiple domains. What truly sets the company apart is its people-first culture. I personally experienced this when, despite being part of the Infrastructure team, the HR leadership provided me an opportunity to transition into Cloud—a career-defining move that reflects Quest’s commitment to employee growth and cross-functional exposure. Such initiatives highlight the company’s focus on enabling employees to explore new horizons, develop future-ready skills, and continuously evolve in their careers.

Cons

Honestly, there is very little to point out as a downside. The overall environment, leadership, and opportunities provided are highly positive.

Viewing 157 - 159 of 5,683 Reviews

Glassdoor has 6,074 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.