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De-extinction and genetic engineering company resurrecting extinct species
HQ: Dallas, Texas | Founded: 2021 | Employees: 180+ | Stage: Series C | Website: https://colossal.com
Colossal Biosciences is a genetic engineering and de-extinction company headquartered in Dallas, Texas. Founded in 2021 by serial entrepreneur Ben Lamm and Harvard geneticist George Church, the company's flagship mission is to bring back the woolly mammoth, thylacine (Tasmanian tiger), and dodo bird using CRISPR-based gene editing, stem cell biology, and synthetic embryo development. Colossal's work extends beyond de-extinction to include conservation genomics tools designed to protect currently endangered species. The company operates multiple research labs and collaborates with universities and conservation organizations worldwide. Colossal has raised over $430 million in venture funding and achieved decacorn status in early 2025.
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