Firefly Biologics
AcquiredAntibody Drug Conjugates Reimagined
Firefly Biologics is headquartered in South San Francisco, United States, lists 11–50 employees, and has $94.0M in recorded funding across 1 round.
- Headquarters
- South San Francisco
- Employees
- 11–50
- Business Model
- B2B
- Website
- fireflybiologics.com
- Total Funding
- $94.0M
- Last Round
- $94.0M Series AMar 2024
- Rounds
- 1
- Acquisition Date
- Jun 2026
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round and 7 investors for this company. The full record is or through the API.
About
Firefly Bio (dba Firefly Biologics) is a South San Francisco-based biotech developing Degrader Antibody Conjugates (DACs), a new therapeutic class combining the tumor-targeting precision of antibody-drug conjugates with selective protein degrader payloads. The company assembled a leadership team of veteran ADC researchers and is backed by Decheng Capital, MPM BioImpact, and Versant Ventures, having raised a $94 million Series A financing round to advance its pipeline.
Summary
Firefly Biologics is a Biotech company based in South San Francisco, United States. It lists 11–50 employees. It has raised $94.0M in total across 1 round, most recently a $94.0M Series A round in Mar 2024. Investors include Johnson & Johnson Innovation, Versant Ventures and MPM Capital.
Tech & App Stack
1 technology or app tracked
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Funding & Exit History
Jun 2026
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Funding: Series A. Amounts, valuations, and investors where available.
Investors
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