Personalis Reviews

3.6

50% would recommend to a friend

(90 total reviews)

Christopher Hall

43% approve of CEO

44% positive business outlook

Personalis has an employee rating of 3.6 out of 5 stars, based on 90 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Personalis employee rating is in line with the average (within 1 standard deviation) for employers within the Pharmaceutical and biotechnology industry (3.5 stars).

Reviews by job title

90 reviews
4.0
7 Jan 2026

Good, Working on Great

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

This is a very exciting mission to be a part of, and 2025 was definitely a year that saw some great developments for this company's reputation and growth. This is a company where most every role will allow you to grow and contribute immensely. Almost everybody seems to become an expert in something that makes them a respected and important part of the team. I have felt very advocated for by my managers and team, since the beginning of the hiring process. They very much want to see me succeed I feel. The office's amenities are quite nice for being a small company, and there's still fairly good flexibility for hybrid work on most teams.

Cons

It's a 24/7 operation, so I and many others will have to think about work even on off days. It's not a strict expectation, but responding to emails or checking messages will often happen outside of the typical 9-5. That all said, I have not felt like my own work/life balance is miserable (I cannot say the same for everyone, though). It takes quite a while to hit a stride of really knowing the ins and outs here. So much knowledge on how to do things is just in peoples' heads, and the experts are frequently too busy to really sit down and walk you through it as you onboard. Learning can take quite a while, and may be overwhelming at first. There are some people who have clearly taken on or been assigned too much responsibility for one person to reasonably maintain, which just doesn't feel fair to them. And it puts pressure on those folks to never really take true time off.

4.0
30 Aug 2025

Good Employer

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

Personalis helps build laboratory professionals, no matter the level of experience they may possess. Gives everyone the necessary tools to succeed at their work.

Cons

Training in different processes proved difficult at times.

avatar
Personalis Response
8mo
Thank you for your valuable feedback! We are so proud that you feel Personalis helps build laboratory professionals and provides the necessary tools for success, regardless of experience level. We understand that training in different processes can prove difficult at times.
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Glassdoor has 98 Personalis reviews submitted anonymously by Personalis employees. Read employee reviews and ratings on Glassdoor to decide if Personalis is right for you.