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      BillionToOne

      Engaged Employer

      BillionToOne reviews

      4.4

      84% would recommend to a friend

      (86 total reviews)

      Oguzhan Atay

      92% approve of CEO

      91% positive business outlook

      Ratings by demographic groups

      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
      Oct 21, 2025

      Visionary Leadership, Patient Centric, Strong Commitment to Culture & Values, Inspiring & Incredibly Rewarding

      Senior recruiter
      Recommend
      CEO approval
      Business Outlook

      Pros

      A truly well-rounded, ambitious, kind, and supportive leadership team. There’s a strong balance of vision, intellectual curiosity, calmness, ethics, and thoughtful decision-making — all grounded in a genuine commitment to culture and values. The technology is incredible, but what really stands out are the people behind it — talented, driven, and hardworking individuals who care deeply about innovating with purpose and always keeping the patient at the center of everything. The culture is transparent, collaborative, and performance-driven, with strong communication and accountability from leadership. It genuinely feels like one cohesive team, 20-mile-marching forward together towards ambitious, shared goals. Expectations are clear, support is always available, and there’s a real sense that everyone wants each other to succeed.

      Cons

      BillionToOne offers so much — meaningful work, incredible teammates, strong support, great compensation, and endless opportunities to grow. But it’s also a place where you need to be all in. Success here takes focus, commitment, and genuine passion for what you do. I don’t see that as a negative at all — it’s part of what makes BTO such a special place. The bar is incredibly high for everything we do, and there’s an unwavering commitment to doing things not just the right way, but in ways that were once thought impossible. You’re constantly encouraged to challenge your own limits, think creatively, and find innovative ways to solve complex problems. It’s demanding — but it’s also deeply rewarding.

      Viewing 10 - 12 of 86 Reviews
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      ReviewsBillionToOne 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.