Altos Labs
Altos Labs is a biotechnology company dedicated to cell rejuvenation aimed at reversing disease, injury, and age-related disabilities. Founded in 2022 and based in Redwood City, California, the company combines academic research with industry innovation to develop transformative medicines. With an initial funding of $3 billion, Altos operates multiple research facilities across the United States, United Kingdom, and Japan. The company's mission focuses on restoring cell health and resilience through advanced cellular reprogramming technology. Altos Labs emphasizes understanding epigenetic pathways to combat aging and disease, with research initiatives centered on human cell aging and DNA methylation mechanisms. Their work includes developing cell rejuvenation therapies, drug-development pipelines, and computational biology applications to enhance the understanding of biological systems. Altos Labs primarily serves the healthcare and biomedicine sectors, aiming to create medicines that address age-related conditions throughout the human lifespan.
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Headcount trend
Altos Labs went from 306 employees in Jul 2023 to 365 in Jun 2025. Jan to Jun 2025: 19 people joined, 13 left.
Headcount data through Jun 2025
Org structure
Headcount by department
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All salaries1 salary profiles in the US
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 10 filings.
Funding
- May 2025 · Acquired · Altos Labs
- Jan 2022 · Venture · $3B · Bezos Expeditions
- Sep 2021 · Venture · $270M · Yuri Milner, Jeff Bezos
- Jan 2021 · Series A · ARCH Venture Partners
- Sep 2018 · Seed · $130K · Y Combinator
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Altos Labs FAQ
How many employees does Altos Labs have?
Altos Labs has about 365 employees, up 1.4% over the 3 months to Jun 2025.
Does Altos Labs sponsor H1B visas?
Yes. Altos Labs filed 10 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
How much does Altos Labs pay?
6figr has 1 salary profile for Altos Labs in the US, with pay broken down by role, level, gender and ethnicity on the Altos Labs salaries page. See Altos Labs salaries
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.