BillionToOne Reviews

4.3

83% would recommend to a friend

(86 total reviews)

Oguzhan Atay

91% approve of CEO

90% positive business outlook

BillionToOne has an employee rating of 4.3 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 23% above average for employers within the Pharmaceutical and biotechnology industry (3.5 stars).

Reviews by job title

86 reviews
5.0
3 Jun 2026

Great culture and mission

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

Great Culture, supportive teams, great mission, receptive to feedback

Cons

Still a young company, so sometimes policy additions can be reactionary

Viewing 1 - 3 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.