Company lists · Data refreshed September 2026
Top 25 Gene therapy development companies based in the United Kingdom
RevenueBase identified 46 gene therapy development companies headquartered in the United Kingdom as of September 2026 and tracks 2,633 professional contacts across them, including 1,297 with verified work emails. London is the largest hub.
This list covers gene therapy development companies headquartered in the United Kingdom, 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 gene therapy development companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 712 contacts → | ||||
Partial evidence “Autolus is a CAR T cell therapy company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 398 contacts → | ||||
Indirect evidence “MeiraGTx (Nasdaq: MGTX) is a vertically integrated, clinical-stage genetic medicine company with a broad pipeline of late-stage clinical programs supported by end-to-end…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 313 contacts → | ||||
Partial evidence “Adaptimmune is a fully integrated cell therapy company, designed and built from the ground up with four U.K- and U.S-based biotechnology hub locations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 221 contacts → | ||||
Strong evidence “Orchard Therapeutics, a Kyowa Kirin company, is a global gene therapy leader focused on ending the devastation caused by genetic and other severe diseases by discovering…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 129 contacts → | ||||
Strong evidence “4basebio is enabling next generation cell and gene therapies and vaccines with it's technologies and solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 98 contacts → | ||||
Strong evidence “Spur Therapeutics is a clinical-stage biotechnology company focused on developing life-changing gene therapies for debilitating chronic conditions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 86 contacts → | ||||
Partial evidence “Beacon Therapeutics is a clinical-stage biotechnology company dedicated to saving and restoring sight for people living with rare and prevalent ocular diseases.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 63 contacts → | ||||
Indirect evidence “At AviadoBio, we are relentlessly chasing cures by translating groundbreaking science and precision delivery into life-changing medicines for people living with frontotemporal…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 43 contacts → | ||||
Indirect evidence “ViaNautis is revolutionising genetic medicine delivery with polyNaut®, its targeted polymer nanovesicles (tPNVs) across multiple indications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 26 contacts → | ||||
Strong evidence “Harnessing an innate mechanism of gene activation, MiNA Therapeutics' platform enables the development of new medicines that restore normal function to patients’ cells.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 contacts → | ||||
Strong evidence “Pencil Biosciences is developing a truly innovative gene modulation technology that can have an impact across a range of applications, including new therapeutic options for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Strong evidence “Freeline is a clinical-stage biotechnology company focused on developing transformative gene therapies for chronic debilitating diseases.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Strong evidence “The company has an early stage pipeline of novel, multi-cistronic gene therapy products targeting diabetic macular edema (DME), age-related macular degeneration (AMD, both wet and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Partial evidence “Celex is a leading biotechnology company focused on the research and development of cutting-edge cancer treatments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Strong evidence “Axovia Therapeutics is dedicated to the research and development of novel AAV gene therapies that target key aspects of ciliopathies, addressing the devastating impact of the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “Overview SynaptixBio is a rare disease biotech company that is pioneering ground-breaking treatments for severe leukodystrophies and other childhood neurodegenerative diseases.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 7 contacts → | ||||
Partial evidence “VacV Biotherapeutics is a cancer immunotherapy company developing innovative viral-based therapies for cancers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Partial evidence “TC BioPharm is a publicly traded, clinical-stage cell therapy company developing advanced allogeneic CAR-T cell therapy products for the treatment of cancer, as well as developing…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Strong evidence “We are breaking down the barriers to safe and affordable cell and gene therapies using our novel, broadly applicable and scalable PluRNA cell engineering platform.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Strong evidence “EpilepsyGTx is a late preclinical-stage biotech developing cutting-edge gene therapies that will transform the management of focal refractory epilepsy (FRE).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Strong evidence “RS & RS Scientific is a pioneering biotech company focused on developing targeted cancer therapies using advanced gene editing technologies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Strong evidence “Bitrobius Genetics is developing the Gentrafix™ platform to solve the major problem with gene therapy: the inability of therapeutic genes to reach most of the cells in an affected…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “Bloomsbury Genetic Therapies ("Bloomsbury") is a clinical-stage biotechnology company, developing potentially curative treatments for patients suffering from rare neurological and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Partial evidence “Aila Biotech harnesses a patented gene delivery technology to drive the production of immune-regulating biologics at the site of disease.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “At Crane Biosciences, we enable RNA treatments for incurable diseases.” 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: gene therapy development 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 gene therapy development companies.
- Partial evidence
- Its own public description names part of gene therapy development companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name gene therapy development 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 46 gene therapy development companies based in the United Kingdom
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Gene therapy development companies based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 46 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 gene therapy development 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 Kingdom whose own description of what they do matches “gene therapy development 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 gene therapy development 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 gene therapy development companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,297 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.
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 gene therapy development 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 gene therapy development companies are there based in the United Kingdom?
RevenueBase identified 46 gene therapy development companies headquartered in the United Kingdom 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?
Autolus Therapeutics, headquartered in London, tops this list with the largest team on record.
Which city has the most gene therapy development companies?
London leads with 24 headquartered companies, followed by Cambridge (6) and Oxford (2).
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 1,297 verified decision-maker contacts tracked across these 46 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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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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