Product Reports Resources Pricing Login Book a demo
COMPANY PROFILE

Affinia Therapeutics

Explore full profile

A proprietary rational design platform that enables to methodically engineer the next generation of AAV vectors and gene therapies

Waltham, United StatesFounded 2019Biotech & Life Sciences
Valuation $500M–1B Latest valuation · 2025
Headcount <100 Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Affinia Therapeutics and the history behind them.

About Affinia Therapeutics

Affinia Therapeutics is a pioneering biotechnology startup that is revolutionizing the field of gene therapy. The company's primary focus is on developing innovative treatments for rare and prevalent diseases, particularly those affecting the nervous system, neuro-oncology, muscle, and lung.

Read full description

The company operates in the rapidly expanding market of gene therapy, which involves modifying or introducing genes into a patient's cells to treat or prevent disease. Affinia Therapeutics is at the forefront of this field, using its proprietary Affinia Rationally-designed Therapies (ART) platform to design the gene therapies of the future. This platform allows the company to understand how the structure of a gene impacts its function, enabling them to create more effective treatments.

Affinia Therapeutics' business model is centered around the development and commercialization of these gene therapies. The company creates libraries of adeno-associated viruses (AAVs), which are commonly used in gene therapy due to their ability to deliver genes to cells. By developing new AAVs, Affinia Therapeutics is able to expand the possibilities of gene therapy and create transformative medicines for people in need.

The company's clients are primarily patients suffering from devastating diseases, for whom traditional treatments have been ineffective. By providing these patients with innovative gene therapies, Affinia Therapeutics is able to make a lasting positive impact on their lives.

In terms of revenue, Affinia Therapeutics likely makes money by selling its gene therapies to healthcare providers or directly to patients. As the company continues to develop and commercialize new therapies, its revenue potential in the growing gene therapy market is significant.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2019
Headquarters
Waltham, United States
Employees
33
Open positions
1
Dealroom signal
62.0/100
Industry
Health
Sub-industry
BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Spinout, Biotech and Pharma, DT and LS, science-based
Business model
Manufacturing
Client focus
b2b

Latest news

Press, funding announcements and product moves mentioning Affinia Therapeutics.

See all news

Funding history

4 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES COther financing Oct 2025 $40M $550M Atlas Venture · GV · Alexandria Venture Investments · Avidity Partners
SERIES BOther financing May 2021 $110M $440M F-Prime · RA Capital Management · Perceptive Advisors · Woodline Partners
Showing the latest 2 of 4 recorded eventsBook a demo for the full funding history →

Growth signals

Affinia Therapeutics website traffic

Latest recorded traffic for Affinia Therapeutics is 3.7K monthly website visits, down 2.6% over the last three months. Affinia Therapeutics's team declined 34% over the past year.

Latest monthly visits3.7K 3-month web change-2.6% 1-year team growth-34%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Open positions

Openings linked to this company in Dealroom
1 distinct opening shownExplore hiring signals →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investors

20 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A14 investors entered at this stage

Series B and later3 investors entered at this stage

  • GV
  • Eli Lilly
  • Mass General Brigham Ventures

Other known investors3 additional known investors

  • Harvard Medical School
  • Institute of Molecular and Clinical Ophthalmology Basel (IOB)
  • Massachusetts Eye and Ear
Team profiled 6 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 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.

Global footprint

Workforce and web traffic by country
Workforce by country
3 countries with
team presence
🇺🇸 United States94.6%
🇬🇧 United Kingdom2.7%
🇨🇭 Switzerland2.7%
3 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Affinia Therapeutics on X, ranked by likes and reposts, corporate channels excluded.

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

See Affinia Therapeutics’s full profile on Dealroom

Request a free trial to see the complete deal history, financials, people graph and growth signals.

Takes under a minute. Already use Dealroom? Log in.