Company lists · Data refreshed September 2026

Top 25 Gene therapy delivery platforms based in the United States

RevenueBase identified 167 gene therapy delivery platforms headquartered in the United States as of September 2026 and tracks 6,146 professional contacts across them, including 3,108 with verified work emails and 3,015 with mobile numbers. Cambridge is the largest hub.

This list covers gene therapy delivery platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
167Companies
6,146Contacts tracked
3,108Verified emails
3,015Mobile numbers
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The 25 largest gene therapy delivery platforms based in the United States

Ranked by team size
Top 25 of 167 gene therapy delivery platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names gene therapy delivery platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Askbio INCStrong evidence
Upper Arlington, OH, United States501-1,000507

“AskBio Inc, a wholly owned and independently operated subsidiary of Bayer AG, is a fully integrated gene therapy company dedicated to developing life-saving medicines and changing…”

Source: company website · checked Sep 3, 2026
2
Forge BiologicsStrong evidence
Columbus, OH, United States201-500450

“Forge, a member of Ajinomoto Bio-Pharma Services, is a gene therapy development engine, focused on enabling access to life changing gene therapies and helping bring them from idea…”

Source: company website · checked Sep 3, 2026
3
Tessera TherapeuticsStrong evidence
Somerville, MA, United States201-500298

“Tessera Therapeutics is a biotechnology company pioneering a new approach to genome engineering through the development of its Gene Writing™ and delivery platforms, with the aim…”

Source: company website · checked Sep 3, 2026
4
Sana Biotechnology, INCIndirect evidence
Cambridge, MA, United States201-500285

“Sana Biotechnology is focused on utilizing engineered cells as medicines for patients.”

Source: company website · checked Sep 3, 2026
5
Andelyn BiosciencesStrong evidence
Columbus, OH, United States201-500275

“Andelyn Biosciences is a gene therapy CDMO dedicated to Turning Hope Into Reality™.”

Source: company website · checked Sep 3, 2026
6
Sangamo Therapeutics, INCPartial evidence
Richmond, CA, United States201-500269

“For Sangamo Therapeutics, science is a means to develop new medicines with the potential to transform the lives of patients living with serious genetic diseases.”

Source: company website · checked Sep 3, 2026
7
Rocket PharmaceuticalsStrong evidence
New York, NY, United States201-500258

“Rocket Pharma (NASDAQ: RCKT) is a fully-integrated, clinical-stage company seeking gene therapy cures.”

Source: company website · checked Sep 3, 2026
8
Kriya Therapeutics, INCIndirect evidence
Palo Alto, CA, United States51-200209

“Our mission is to revolutionize medicine, with the ultimate goal of eliminating human suffering and enabling people to live without the burden of disease.”

Source: company website · checked Sep 3, 2026
9
Voyager Therapeutics, INCPartial evidence
Lexington, MA, United States51-200207

“Voyager Therapeutics, Inc.(Nasdaq: VYGR) is a biotechnology company dedicated to leveraging the power of human genetics to modify the course of – and ultimately cure –…”

Source: company website · checked Sep 3, 2026
10
Poseida Therapeutics, INCIndirect evidence
San Diego, CA, United States201-500172

“Poseida was acquired by Roche in early 2025 and is now part of the Roche Group.”

Source: company website · checked Sep 3, 2026
11
Solid BiosciencesStrong evidence
Boston, MA, United States51-200160

“Solid Biosciences is a precision genetic medicine company focused on advancing a portfolio of gene therapy candidates targeting rare neuromuscular and cardiac diseases, including…”

Source: company website · checked Sep 3, 2026
12
Encoded Therapeutics INCStrong evidence
South San Francisco, CA, United States51-200153

“Encoded Therapeutics is creating one-time, disease-modifying gene therapies for pediatric central nervous system (CNS) disorders with its cell-selective targeting and regulation…”

Source: company website · checked Sep 3, 2026
13
Sorrento Therapeutics, INCIndirect evidence
San Diego, CA, United States501-1,000149
Source: company website · checked Sep 3, 2026
14Rockville, MD, United States51-200115

“Ascend is gene to GMP partner with deep expertise in advanced therapy development and commercialization.”

Source: company website · checked Sep 3, 2026
15
Obsidian TherapeuticsStrong evidence
Cambridge, MA, United States51-200114

“Obsidian Therapeutics is pioneering controllable cell and gene therapies to deliver transformative outcomes for patients with intractable diseases.”

Source: company website · checked Sep 3, 2026
16
Capsida BiotherapeuticsIndirect evidence
Newbury Park, CA, United States51-200108

“Capsida Biotherapeutics Inc.”

Source: company website · checked Sep 3, 2026
17
Spur TherapeuticsStrong evidence
Boston, MA, United States11-5092

“Spur Therapeutics is a clinical-stage biotechnology company focused on developing life-changing gene therapies for debilitating chronic conditions.”

Source: company website · checked Sep 3, 2026
18
Recode TherapeuticsStrong evidence
Durham, NC, United States11-5088

“ReCode Therapeutics is a clinical-stage genetic medicines company using superior delivery to power the next wave of mRNA and gene correction therapeutics.”

Source: company website · checked Sep 3, 2026
19
Landmark BIOStrong evidence
Watertown, MA, United States51-20087

“At its heart, Landmark Bio is a cell and gene therapy manufacturing company, focused on the development of innovative technologies, products and services to bridge the gap from…”

Source: company website · checked Sep 3, 2026
20
Aera TherapeuticsPartial evidence
Cambridge, MA, United States51-20086

“Aera’s mission is to unlock the potential of genetic medicines by tacking the greatest unmet need in the field today – delivery.”

Source: company website · checked Sep 3, 2026
21
Matica Biotechnology, INCIndirect evidence
College Station, TX, United States51-20079
Source: company website · checked Sep 3, 2026
22
Kelonia TherapeuticsStrong evidence
Boston, MA, United States11-5066

“Kelonia is pioneering a new wave of genetic medicines using its next generation gene delivery platform.”

Source: company website · checked Sep 3, 2026
23
Mirus BIOPartial evidence
Madison, WI, United States51-20062

“OUR MISSION: Deliver Innovation.”

Source: company website · checked Sep 3, 2026
24
Affinia TherapeuticsStrong evidence
Waltham, MA, United States51-20061

“We are a team with decades of proven success in translating science from bench to bedside across many companies and medicines, in gene therapy and beyond.”

Source: company website · checked Sep 3, 2026
25
Packgene Biotech, INCIndirect evidence
Houston, TX, United States201-50060
Source: company website · checked Sep 3, 2026

Showing 25 of 167 gene therapy delivery platforms based in the United States

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Gene therapy delivery platforms based in the United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
CambridgeLargest hub · 16 HQs
3,015Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
67
11-50
61
51-200
24
201-500
11
501-1,000
2
10001+
2

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among gene therapy delivery platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “gene therapy delivery platforms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among gene therapy delivery platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 3,108 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many gene therapy delivery platforms are there based in the United States?

RevenueBase identified 167 gene therapy delivery platforms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Askbio INC, headquartered in Upper Arlington, tops this list with the largest team on record.

Which city has the most gene therapy delivery platforms?

Cambridge leads with 16 headquartered companies, followed by San Diego (12) and Boston (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,108 verified decision-maker contacts tracked across these 167 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.