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Firefly Bio

Biotech & Life Sciences · South San Francisco, United States · Founded 2022

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Firefly Biologics is a venture-backed company based in the Bay Area, currently operating in stealth mode. The company focuses on developing innovative bioconjugate solutions, which are advanced techniques that combine biological molecules with other compounds to enhance their effectiveness in medical treatments. Firefly Biologics aims to revolutionize the field of medicine by realizing the full potential of bioconjugates, making treatments more effective and targeted.

The company primarily serves the biotechnology and pharmaceutical sectors, targeting clients who are looking for cutting-edge solutions to improve their medical products. Operating in the highly competitive and rapidly evolving biotech market, Firefly Biologics leverages its advanced research and development capabilities to stay ahead.

Firefly Biologics' business model revolves around research and development, intellectual property licensing, and strategic partnerships. The company generates revenue through licensing its bioconjugate technologies to pharmaceutical companies and forming partnerships for co-development of new medical treatments. By focusing on innovation and collaboration, Firefly Biologics aims to create significant value for its stakeholders.

Keywords: bioconjugates, biotechnology, pharmaceuticals, medical treatments, innovation, research and development, intellectual property, licensing, strategic partnerships, Bay Area.

Company overview

Firefly Bio company information

The essential company record, classifications and operating signals in one place.

Status
Acquired
Founded
2022
Headquarters
South San Francisco, United States
Employees
25
Open positions
None listed
Dealroom signal
62.4
sub industryBioTechnologybusiness modelManufacturingindustryHealthsectorBiotechnologysectorAntibodiessectorSpinoutsectorVerified Unicorns and $1B ExitssectorBiotech and PharmasectorAntibody-Drug ConjugatesectorWoman FoundersectorDT and LSsectorscience-basedclient focusb2b

Valuation & funding

Firefly Bio funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONOther financing Jun 2026 $1B $1B Johnson & Johnson
SERIES AOther financing Feb 2024 $94M $376M Eli Lilly · MPM BioImpact · Versant Ventures · Decheng Capital
SPINOUTOther financing Jan 2022 Stanford University
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Growth signals

Firefly Bio website traffic

Latest recorded traffic for Firefly Bio is 1.5K monthly website visits, up 54.6% over the last three months. Firefly Bio's team declined 3.8% over the past year.

Latest monthly visits1.5K 3-month web change+54.6% 1-year team growth-3.8%
Monthly website visits30 observations · Feb 2024–Jul 2026
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Comparisons

Firefly Bio compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

Firefly Bio's talent

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Team profiled 5 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

6 investors on Firefly Bio's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Series A 4 investors entered at this stage
Eli Lilly
MPM BioImpact
Versant Ventures
Decheng Capital
Other known 2 additional known investors
Johnson & Johnson
Stanford University

Global footprint

Where Firefly Bio has talent and traffic

Workforce by country
3 countries with
team presence
🇺🇸 United States88.9%
🇦🇺 Australia5.6%
🇨🇦 Canada5.6%
3 countries shown

In the news

Latest news about Firefly Bio

Recent press, funding announcements, and product moves mentioning Firefly Bio — open to read from the original sources.

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Market sentiment

What the market is saying about Firefly Bio

An AI-synthesized read of the highest-engagement posts about Firefly Bio on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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