Retro Biosciences vs ImmunoVec
Side-by-side comparison of AI visibility scores, market position, and capabilities
Largest-funded pure-play longevity startup raising $1B Series A at $5B valuation; Sam Altman-backed; pursuing cellular reprogramming, autophagy, and plasma factor therapeutics in parallel; first human trial targeting Australia launch.
About
Retro Biosciences is the largest-funded pure-play longevity company in history, raising $1 billion in Series A financing at a $5 billion valuation with Sam Altman (OpenAI CEO) as a primary backer. The company is pursuing cellular reprogramming, autophagy enhancement, and plasma factor therapeutics in parallel — a multi-pronged approach to extending healthy human lifespan by targeting the cellular hallmarks of aging simultaneously.
Received up to $40.7M ARPA-H award (Oct 2025). Polymeric nanoparticle platform to reprogram immune cells in vivo without viral vectors. Non-viral delivery for CAR-T-like therapies.
About
ImmunoVec is developing a non-viral polymeric nanoparticle delivery platform for in vivo immune cell engineering — programming a patient's immune cells directly inside their body without the expensive ex vivo manufacturing process that makes CAR-T therapies cost $500,000-$1,000,000 per treatment. The company received a selective ARPA-H (Advanced Research Projects Agency for Health) award of up to $40.7 million in October 2025 for development of its platform.
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