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At Until, we are building reversible cryopreservation technology. We develop perfusion systems, cryoprotectant formulations, controlled-rate freezers, and vitrification and rewarming protocols for biological systems. Our focus today is organ-scale reversible cryopreservation: preserving donated organs at subzero temperatures without ice formation, then rewarming them uniformly for transplant. By solving this time-critical challenge, we’re laying the foundation for whole-body reversible cryopreservation — pausing molecular motion to give patients a bridge to future cures.

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industries

Advancing human health

Biology biochemistry

Milestones

Lux Investment: 2025

Founders

Laura Deming

Hunter Davis

Lux partners
Brandon Reeves
Tess van Stekelenburg

Until Labs

Michelle Fang
Prableen Kaur
Bibi Masara
Morgan Roundtree
Ale Salardi
Kyrstin Swan
Emily Haight
Laurence Pevsner
Nat Turner
David Yang
Kim Tran
Tess van Stekelenburg
Andrew Wilson
Tracie Rotter
Stevie Lee
Steven Brody
Shaq Vayda
Shahin Farshchi, PhD
Segolene Scarborough
Sean Traynor
Scott Rubin
Saunaz Moradi
Samuel Arbesman, PhD
Samantha Cho
Peter Hébert
Lindsay Morris
Lan Jiang
Josh Wolfe
Grace Isford
Deena Shakir
Debbie Elsen
Danny Crichton
Cristina Morris
Brandon Reeves
Brad Gritsch
Adam Kalish