Investor profile
R42 Group
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R42 Group, established from Dr. Ronjon Nag's family office, invests in deep science ventures at the intersection of AI and longevity science—what Nag calls 'mathematics and medicine.' The firm focuses on AI, biotechnology, genomics, and deep tech, backing companies from the pre-seed inventing stage through to growth. R42 invests both directly in startups and as an LP in aligned early-stage funds, providing personal guidance, scientific advisory resources, and hands-on support to entrepreneurs tackling hard problems in life sciences, drug discovery, and longevity.
Notable quotes
“At R42, our investment thesis revolves around AI and longevity science—what I like to call 'mathematics and medicine.' This focus on deep tech and science reflects a natural progression from being an entrepreneur to an investor.”
“Our firm tends to invest in sectors where the technology is tough – deep tech, deep science; and the competition might be less, but the challenge of market development can be greater due to the innovative nature of the products. It's about recognizing potential in what others might overlook or deem impossible.”
“We invest mainly in companies that are at the intersection of AI and longevity. On one hand, we function as a regular VC fund, with a global portfolio. But we are also entering the XPrize competition about longevity, which is pretty exciting.”
Recent investments
| Company | Round | Size | Date |
|---|---|---|---|
| Healx | Series C | $47m | 2024-08-01 |
| Abselion | Seed | — | 2024-12-04 |
| Silveray | Seed | — | 2024-11-18 |
| Oxford Drug Design | Seed | — | 2025-12-19 |
| xWatts | Pre-seed | — | 2026-02-10 |
| Rubedo Life Sciences | Series A | $40m | — |
| Fountain Therapeutics | Series A | $15m | — |
| Senisca | Seed | $5m | — |
| KetoSwiss | Later Stage VC | — | 2024-10-25 |
| VividQ | Seed | — | — |
Frequent co-investors
| VC firm | Deals together |
|---|---|
| ACF Investors | 3 |
| Atomico | 1 |
| Khosla Ventures | 1 |
| Cambridge Enterprise | 1 |
| APEX Ventures | 1 |
| Parkwalk Advisors | 1 |
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