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Top Biotech companies

Companies applying biology, chemistry, and computation to therapeutics and tooling.

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Ranked by current headcount across the largest Biotech companies. Refreshed daily.

  1. 1
    Roche· Basel, Basel, Switzerland
    • Post-IPO equity
    • 105.6k employees
  2. 2
    Thermo Fisher Scientific· Waltham, Massachusetts, United States
    • Post-IPO debt
    • 100.4k employees
    • Founded 1956
  3. 3
    Amgen· Thousand Oaks, California, United States
    • Post-IPO debt
    • 40.3k employees
    • Founded 1980
  4. 4
    ICON plc· Greater Dublin
    • Post-IPO debt
    • 35k employees
    • Founded 1990
  5. 5
    The National Institutes of Health· Bethesda, Maryland, United States
    • Grant
    • 28.5k employees
Reveal 7,606 more·100 free credits, no card

Find engineers and designers at top Biotech companies

The Biotech industry runs on the people who build it. The list above ranks the largest Biotech companies by current headcount, drawn from public LinkedIn and Crunchbase records. Across the 7,611 Biotechcompanies in our index, you’ll find software engineers, ML researchers, designers, founders, and recruiters worth talking to - whether you’re hiring, investing, or doing market research.

Each company on the list is a hub of talent. The biggest Biotech companies tend to attract specialised engineers, while younger ones run on small founding teams and hire generalists. Looking at headcount, last funding round, and HQ location side by side gives you a quick read on where the talent density is highest.

Refolk turns this list into a search. Ask for “Biotechengineers in San Francisco hiring senior ML” or “designers at Biotechcompanies who shipped a product in 2025” and Refolk returns a fresh ranked shortlist with the sources that earned each person a spot.

How this list is built

Refolk pulled the largest companies in Biotech from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 25 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 07:12:41 GMT

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