BillionToOne reviews

4.4

84% would recommend to a friend

(86 total reviews)

Oguzhan Atay

92% approve of CEO

91% positive business outlook

BillionToOne has an employee rating of 4.4 out of 5 stars, based on 86 company reviews on Glassdoor which indicates that most employees have an excellent working experience there. The BillionToOne employee rating is 25% above average for employers within the Pharmaceutical & Biotechnology industry (3.5 stars).

Reviews by job title

86 reviews
5.0
Apr 17, 2025
Recommend
CEO approval
Business Outlook

Pros

Technology will change the world. Smartest and best people in every single position. Everyone collectively works hard to do well by the company. CEO is inspiring, thoughtful and brilliant. Never seen one like him.

Cons

Rep culture can be tough in some areas as original reps are not super welcoming to newcomers. They are aware and improving this though. Culture is very important and still incredible in so many ways. Competitor Natera is unethical and doctors accept their lies at face value because they’ve been around a lot longer.

5.0
Apr 11, 2025

Great Company and Mission

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

BTO is truly a special place, I am so fortunate to have this as my first true startup experience! I learned a lot and grew a lot during my time which made me valuable in my next career step. I truly believed in the CEO and what he is trying to accomplish (I think BTO will be wildly successful mainly because of his resilience). I definitely recommend this company for people passionate about cutting edge diagnostics!!

Cons

"People leave not because of the company, but because of managers." When I changed managers (without my opinion even if I was a "loyal" employee), it took me a few months to realize that my new manager will not be able to support my growth, or the challenges I had in my personal life. I loved the company but without a great manager, I had to take the loss and find a new home.

2.0
Mar 10, 2025
Recommend
CEO approval
Business Outlook

Pros

Solid benefits, finally started giving cost of living adjustments — though they still don’t really match actual inflation. Free snacks and lunch are legit. The real gems here are the coworkers — absolute 'superstars.' You learn so much from the team because most people are insanely hardworking and talented. Management in the lab seems to be improving, especially with more transparency lately — something we've been pushing for forever.

Cons

The favoritism is wild. CLS staff (especially certain ones) get special treatment, while CLA's often take the fall for mistakes. It’s frustrating to see some CLS taking long breaks or not pulling their weight, but still getting a free pass. Meanwhile, CLA's mess up once and are shown the door. What’s worse is the attitude from senior leadership. We've literally been told in company-wide meetings to suck it up because we “signed up” for a chaotic work environment. The CEO even said in a podcast that the extar workload burden (aka burnout) people feel is by design — like, why brag about expecting people to do 2-5x the work they would at another company for the same (or less) pay? It’s giving we don't care about work-life balance...which they do NOT! Literally, heard a senior staff member talking about this in the halls, if work-life balance is important to someone then BTO is not for them. At the end of the day, this isn’t a pro-employee company — not that many are — but to openly say they want you to grind yourself into the ground for "big impact" or leave? It’s a choice. What’s even more frustrating is that these high expectations don’t apply to everyone — some people just coast by, doing the bare minimum and agreeing with whatever leadership says. Total waste of resources.

Viewing 19 - 21 of 86 Reviews

Glassdoor has 95 BillionToOne reviews submitted anonymously by BillionToOne employees. Read employee reviews and ratings on Glassdoor to decide if BillionToOne is right for you.