Retro Biosciences

Retro Biosciences is a biotechnology company based in Redwood City, United States, dedicated to developing therapeutics that target the cellular mechanisms of aging. The company aims to extend the healthy human lifespan by 10 years and focuses on preventing and reversing age-related diseases. With a team of 51 to 200 employees, Retro Biosciences is recognized for its innovative approach to longevity treatments. The company specializes in cellular reprogramming, autophagy, and plasma-inspired therapeutics. These areas of focus involve altering cell behavior, recycling damaged cellular components, and exploring novel treatment methods inspired by plasma properties. Retro Biosciences utilizes AI-powered drug development to enhance its research and development processes, collaborating with organizations like OpenAI and Multiply Labs to improve both scientific and manufacturing capabilities. The company has secured significant funding, including a recent $1 billion round, indicating strong financial stability and growth potential.

Research Redwood City, United States ~50 employees

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Employees
50
+4.2% in the 3 months to Jun 2025
Total funding
$540M
Last round Jan 2025
12-month attrition
22.2%
Tech: 25%
H1B filings, FY2026
3
Sponsors visas
Open jobs
3
Last 30 days

Headcount trend

Retro Biosciences went from 36 employees in Jul 2023 to 50 in Jun 2025. Jan to Jun 2025: 5 people joined, 1 left.

Headcount data through Jun 2025

Org structure

Headcount by department

Other39
Operations5
Engineering4
Finance1
HR1

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H-1B sponsorship

H-1B Sponsorship Limited
H-1B Filings by Department
Engineering5
Executive1

The department split adds up all the years listed above. FY2026 alone: 3 filings.

Funding

  • Jan 2025 · $180M
  • Mar 2023 · $180M
  • Apr 2022 · $180M

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Retro Biosciences FAQ

How many employees does Retro Biosciences have?

Retro Biosciences has about 50 employees, up 4.2% over the 3 months to Jun 2025.

Does Retro Biosciences sponsor H1B visas?

Yes. Retro Biosciences filed 3 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.

How much funding has Retro Biosciences raised?

Retro Biosciences has raised $540M in total funding.

Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.