Company lists · Data refreshed September 2026
Top 25 Immunotherapy gene therapy companies based in the United States
RevenueBase identified 646 immunotherapy gene therapy companies headquartered in the United States as of September 2026 and tracks 83,259 professional contacts across them, including 42,069 with verified work emails. Cambridge is the largest hub.
This list covers immunotherapy gene therapy companies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest immunotherapy gene therapy companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 36,379 contacts → | ||||
Indirect evidence “At Bristol Myers Squibb, we work every day to transform patients’ lives through science.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 17,217 contacts → | ||||
Indirect evidence “About Genentech We're passionate about finding solutions for people facing the world's most difficult-to-treat conditions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,766 contacts → | ||||
Partial evidence “At Kite, a Gilead Company, our singular focus is achieving cures with cell therapy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,154 contacts → | ||||
Partial evidence “Legend Biotech is a global, commercial-stage biotechnology company developing and manufacturing novel therapies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,578 contacts → | ||||
Indirect evidence “We aspire to create, improve and prolong life for people living with difficult-to-treat conditions like infertility, multiple sclerosis and cancer.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,361 contacts → | ||||
Partial evidence “Founded to find a cure for a daughter’s rare disease, United Therapeutics is a biotechnology company transforming care for people with chronic and life-threatening conditions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 985 contacts → | ||||
Partial evidence “Iovance Biotherapeutics (NASDAQ: IOVA) aims to be the global leader in innovating, developing and delivering tumor infiltrating lymphocyte (TIL) therapies for patients with cancer.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 837 contacts → | ||||
Indirect evidence “We exist to bring transformative medicines to people living with genetic conditions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 637 contacts → | ||||
Partial evidence “Dendreon is a commercial-stage biopharmaceutical company and pioneer in the development of immunotherapy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 591 contacts → | ||||
Partial evidence “ImmunityBio, Inc.(formerly NantKwest, Inc.) is developing cell and immunotherapy products that are designed to help strengthen each patient’s natural immune system, potentially…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 479 contacts → | ||||
Partial evidence “Replimune's mission is to revolutionize cancer treatment with therapies designed to activate a powerful and durable full-body anti-tumor response.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 456 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 336 contacts → | ||||
Partial evidence “Syndax Pharmaceuticals is a commercial-stage biopharmaceutical company advancing innovative cancer therapies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 287 contacts → | ||||
Indirect evidence “Sana Biotechnology is focused on utilizing engineered cells as medicines for patients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 281 contacts → | ||||
Strong evidence “Andelyn Biosciences is a gene therapy CDMO dedicated to Turning Hope Into Reality™.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 279 contacts → | ||||
Partial evidence “Orca Bio is a late-stage biotechnology company developing high-precision cell therapies for the treatment of blood cancer and autoimmune diseases.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 258 contacts → | ||||
Strong evidence “Rocket Pharma (NASDAQ: RCKT) is a fully-integrated, clinical-stage company seeking gene therapy cures.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 254 contacts → | ||||
Partial evidence “At Puma Biotechnology, our focus is on bringing innovative therapies to patients to enhance cancer care.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 236 contacts → | ||||
Partial evidence “4DMT is a leading late-stage biotechnology company advancing durable and disease-targeted therapeutics with potential to transform treatment paradigms and provide unprecedented…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 229 contacts → | ||||
Indirect evidence “Arcellx is now part of Kite, a Gilead company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 211 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 205 contacts → | ||||
Partial evidence “Umoja is developing a new approach to cancer therapy that retools a patient’s immune system in vivo, enhancing the body’s natural capacity to fight cancer.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 194 contacts → | ||||
Strong evidence “Atara Biotherapeutics Inc, is a leading allogeneic T-cell immunotherapy company pioneering the development of transformative off-the-shelf therapies for patients with serious…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 190 contacts → | ||||
Partial evidence “TScan is dedicated to creating life-changing T cell therapies for patients by unleashing the untapped potential of the human immune system.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 172 contacts → | ||||
Indirect evidence “Poseida was acquired by Roche in early 2025 and is now part of the Roche Group.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: immunotherapy gene therapy companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names immunotherapy gene therapy companies.
- Partial evidence
- Its own public description names part of immunotherapy gene therapy companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name immunotherapy gene therapy companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 646 immunotherapy gene therapy companies based in the United States
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Immunotherapy gene therapy companies based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 646 companies.
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 immunotherapy gene therapy companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “immunotherapy gene therapy companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names immunotherapy gene therapy companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among immunotherapy gene therapy companies, 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 its RevenueBase Smart Search 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, 42,069 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 20, 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.
Immunotherapy gene therapy companies by metro
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names immunotherapy gene therapy companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many immunotherapy gene therapy companies are there based in the United States?
RevenueBase identified 646 immunotherapy gene therapy companies 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?
Bristol Myers Squibb, headquartered in Lawrence Township, tops this list with the largest team on record.
Which city has the most immunotherapy gene therapy companies?
Cambridge leads with 46 headquartered companies, followed by San Diego (44) and Boston (32).
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 42,069 verified decision-maker contacts tracked across these 646 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 20, 2026.
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Immunotherapy gene therapy companies by geography
- Immunotherapy gene therapy companies based in Boston, United States
- Immunotherapy gene therapy companies based in Cambridge, United States
- Immunotherapy gene therapy companies based in San Diego, United States
- Immunotherapy gene therapy companies based in Australia
- Immunotherapy gene therapy companies based in Canada
- Immunotherapy gene therapy companies based in France
- Immunotherapy gene therapy companies based in Germany
- Immunotherapy gene therapy companies based in India
- Immunotherapy gene therapy companies based in Israel
- Immunotherapy gene therapy companies based in Switzerland
- Immunotherapy gene therapy companies based in the United Kingdom
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 Smart Search, 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.
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