CSL reviews

3.4

56% would recommend to a friend

(693 total reviews)
avatar

Gordon Naylor

70% approve of CEO

37% positive business outlook

CSL has an employee rating of 3.4 out of 5 stars, based on 693 company reviews on Glassdoor which indicates that most employees have a good working experience there. The CSL employee rating is in line with the average (within 1 standard deviation) for employers within the Pharmaceutical & Biotechnology industry (3.5 stars).

Reviews by job title

693 reviews
5.0
Mar 31, 2026

Busy but good

Recommend
CEO approval
Business Outlook

Pros

Challenging, Good people, Approachable management.

Cons

Can be sometimes frantic/rushed across the department

4.0
Mar 9, 2026

Lab engineer

Recommend
CEO approval
Business Outlook

Pros

Money is good Location is brilliant New building

Cons

On call for 2 weeks every 6

4.0
Feb 28, 2026

Mostly good

Recommend
CEO approval
Business Outlook

Pros

Role allowed me to build solution with a lot of autonomy Good compensation and workload Mostly good workplace culture and supportive team

Cons

People I worked with weren't technical so couldn't provide much guidance there, had to learn on my own Started off using very outdated technology, moved to a cloud solution but was still basic implementation without a lot of modern tech stack because it was only me building it Difficult to get business support/funding for project, lots of bureaucracy Some internal politics and frequent restructuring, but I was largely shielded from it

Viewing 493 - 495 of 693 Reviews

Glassdoor has 913 CSL reviews submitted anonymously by CSL employees. Read employee reviews and ratings on Glassdoor to decide if CSL is right for you.