Biossil Undisclosed stage: $153M

Sep 27, 2026Public sources — Collected from public sources, not yet cross-checked.

Biossil raised $153 million in an undisclosed stage round led by OpenAI Startup Fund, announced Sept. 27.

Facts

Company: Biossil
Amount: $153 million
Currency: USD
Stage: Undisclosed stage
Announced: Sep 27, 2026
Instrument: Equity
Valuation: $1 billion (officially disclosed)

Investors

Led by: OpenAI Startup Fund
Participants: Founders Fund Quiet Capital Modern Capital Golden Ventures Panache Ventures Duke University’s endowment fund Abu Dhabi Investment Council

Use of funds

Expand clinical development capacity and acquire additional drug candidates.

As stated by the company.

Sources

1.Biossil hits unicorn status with new OpenAI-led financing — BetaKit, Sep 28, 2026

Public sources — Collected from public sources, not yet cross-checked.Last verified Oct 15, 2026