Syneos Health reviews

3.7

67% would recommend to a friend

(3,923 total reviews)

Costa Panagos

66% approve of CEO

55% positive business outlook

Syneos Health has an employee rating of 3.7 out of 5 stars, based on 3,923 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 Pharmazeutika & Biotechnologie 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.

4.0
Sep 23, 2025
Recommend
CEO approval
Business Outlook

Pros

Internally, more collaborative than other big CROs - resources are readily shared within business units. Not as siloed as other contract companies. Leveling up depends where you sit and can determine how visible or invisible you can be to future opportunities. Opportunities to bring field leadership insight to improve internal processes are appreciated. Leadership is reasonable and approachable, but must prove your value first.

Cons

Administrative roles are being moved out of the US to save costs, but it is affecting operational efficiency. Roles are structured on a client's need at the moment. Job security after your project is done depends on the business pipeline. Timing can make or break your next Syneos Health contract gig.

Viewing 178 - 180 of 3,923 Reviews

Glassdoor has 4,835 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.