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 and biotechnology industry (3.5 stars).

Reviews by job title

86 reviews
5.0
3 June 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

5.0
16 Apr 2026

Great workplace

Recommend
CEO approval
Business outlook

Pros

Fast paced work environment with great growth opportunities

Cons

Changes can be quick but not difficult

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.