Biossil
About Biossil
Biossil is a Therapeutics startup based in Toronto, Ontario, Canada that has raised $69M in venture capital across 3 funding rounds since 2023. The company reached Series B stage in 2023 with a $3.7M round led by Staircase Ventures. Biossil's investor base includes 9 institutional funds, with Founders Fund leading the most recent equity round.
Biossil is an AI-native biopharma company that uses artificial intelligence to identify clinical-stage drug candidates that failed in their original disease indication, acquires or licenses those molecules, and advances them through new clinical trials — compressing drug development timelines from decades to years at a fraction of traditional cost. Founded in 2023 in Toronto, Canada by Anthony Mouchantaf (CEO, former VC at RBCx) and Dr. Alexander Mosa (CSO, trained internal medicine specialist), Biossil's active pipeline targets sickle cell disease, idiopathic pulmonary fibrosis, glioblastoma, breast cancer, and Alzheimer's disease. The company exited stealth in April 2026 with $70M in total funding across three rounds, including its $43M Series B co-led by Founders Fund and OpenAI.
Biossil Funding Rounds Timeline
3 rounds · $69M raised · since 2023
| Round | Date | Amount | Valuation | Lead investor | Co-investors |
|---|---|---|---|---|---|
| Seed | 2023 | $3.7M | — | Staircase Ventures | Golden Ventures, Panache Ventures |
| Series A | 2024 | $22M | — | Founders Fund | — |
| Series B | Fall 2024 | $43M | $100M | Founders Fund | OpenAI, Modern Capital, Quiet Capital, 137 Ventures, DRI Healthcare |
Investors in Biossil
9 institutional investors across 3 rounds
Lead investors
Co-investors
Recent news about Biossil
Questions about Biossil
How much has Biossil raised?
Biossil has raised $69M across 3 funding rounds since 2023.
Who are the investors of Biossil?
Biossil's investors include Founders Fund, Staircase Ventures, OpenAI, Golden Ventures, Panache Ventures, Modern Capital, Quiet Capital, 137 Ventures, DRI Healthcare.
When was Biossil's last funding round?
Biossil's most recent round was a $3.7M Seed in 2023, led by Staircase Ventures.
What is Biossil's valuation?
Biossil reached a $100M valuation with its Seed round in 2023.
Where is Biossil headquartered?
Biossil is headquartered in Toronto, Ontario, Canada, and was founded in 2023 by Anthony Mouchantaf, Alexander Mosa.