Firefly Biologics
ClosedSouth San Francisco, United States · $94.0M raised
- 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
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 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 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Jun 2026
Sign up to see all 2 rounds
Series A through Acquisition — per-round amounts, valuations, and who invested in each round.
Investors
Similar Companies
China's leading blood products manufacturer

One of the world's largest contract research organizations (CROs), providing end-to-end clinical ...
Simtra provides pharmaceutical and biotech clients development and manufacturing services for ste...

IVI-RMA provides fertility treatments and patient-centered reproductive care, combining research,...
Altos Labs combines academic science and industry development to create medicines that restore ce...
inVentiv Health merged with INC Research to form Syneos Health, integrating clinical and commerci...
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/firefly-biologics"><img src="https://indexed.vc/api/badge/company/firefly-biologics" alt="Firefly Biologics on Indexed.vc" width="260" height="76" /></a>



