Syneos Health reviews

3.7

68% would recommend to a friend

(3,929 total reviews)

Costa Panagos

67% approve of CEO

56% positive business outlook

Syneos Health has an employee rating of 3.7 out of 5 stars, based on 3,929 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Syneos Health employee rating is in line with the average (within 1 standard deviation) for employers within the Farmacéutica y biotecnología industry (3.5 stars).

Reviews by job title

4K reviews
1.0
Sep 24, 2025

Declining culture + toxic management

Recommend
CEO approval
Business Outlook

Pros

Unlimited PTO and WFH flexibility

Cons

Unprofessional behavior from management, very little support for staff, unstable and toxic culture.

Viewing 340 - 342 of 3,929 Reviews

Glassdoor has 4,844 Syneos Health reviews submitted anonymously by Syneos Health employees. Read employee reviews and ratings on Glassdoor to decide if Syneos Health is right for you.