Company lists · Data refreshed September 2026
Top 23 Gene therapy companies based in the United Kingdom
The 35 gene therapy companies based in the United Kingdom are listed with 1,374 contacts and 872 email addresses. Updated September 2026, the directory identifies London as the single most-represented city among the companies on the list.
Gene therapy companies develop, manufacture, or support treatments that modify, replace, add, or regulate genetic material to address disease. This list covers companies that develop, manufacture, test, commercialize, or directly support the research and development of gene therapy products. Ranked by team size, largest first. Data current as of September 7, 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 23 largest gene therapy companies based in the United Kingdom
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Indirect evidence | 398 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 2 | Strong evidence | 221 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 3 | Strong evidence | 129 contacts → | |||
“4basebio is enabling next generation cell and gene therapies and vaccines with it's technologies and solutions.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 4 | Strong evidence | 98 contacts → | |||
“Spur Therapeutics is a clinical-stage biotechnology company focused on developing life-changing gene therapies for debilitating chronic conditions.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 5 | Indirect evidence | 92 contacts → | |||
“Our 20-plus years of RNAi experience together with our validated mRNAi GOLD™ platform make us a partner of choice for pharmaceutical companies looking to access the benefits of…” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 6 | Partial evidence | 86 contacts → | |||
“Beacon Therapeutics is a clinical-stage biotechnology company dedicated to saving and restoring sight for people living with rare and prevalent ocular diseases.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 7 | Indirect evidence | 63 contacts → | |||
“At AviadoBio, we are relentlessly chasing cures by translating groundbreaking science and precision delivery into life-changing medicines for people living with frontotemporal…” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 8 | Indirect evidence | 59 contacts → | |||
Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 9 | Indirect evidence | 43 contacts → | |||
“ViaNautis is revolutionising genetic medicine delivery with polyNaut®, its targeted polymer nanovesicles (tPNVs) across multiple indications.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 10 | Strong evidence | 26 contacts → | |||
“Harnessing an innate mechanism of gene activation, MiNA Therapeutics' platform enables the development of new medicines that restore normal function to patients’ cells.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 11 | Strong evidence | 16 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 12 | Strong evidence | 13 contacts → | |||
“Freeline is a clinical-stage biotechnology company focused on developing transformative gene therapies for chronic debilitating diseases.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 13 | Strong evidence | 10 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 14 | Strong evidence | 8 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 15 | Indirect evidence | 7 contacts → | |||
“Overview SynaptixBio is a rare disease biotech company that is pioneering ground-breaking treatments for severe leukodystrophies and other childhood neurodegenerative diseases.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 16 | Partial evidence | 7 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 17 | Strong evidence | 6 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 18 | Strong evidence | 5 contacts → | |||
“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: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 19 | Strong evidence | 5 contacts → | |||
“RS & RS Scientific is a pioneering biotech company focused on developing targeted cancer therapies using advanced gene editing technologies.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 4 contacts → | |||
“Lentivirus is challenging to manufacture.” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 21 | Partial evidence | 4 contacts → | |||
“Bloomsbury Genetic Therapies ("Bloomsbury") is a clinical-stage biotechnology company, developing potentially curative treatments for patients suffering from rare neurological and…” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 22 | Partial evidence | 2 contacts → | |||
“GammaDelta Therapeutics is a UK headquartered biotechnology company founded upon world-class academic research conducted by Professor Adrian Hayday and Dr Oliver Nussbaumer, at…” Source: company website · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 23 | Partial evidence | 1 contacts → | |||
“We are developing transformative treatments through RNA-targeting genetic therapies” Source: company website · checked Sep 7, 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 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 companies.
- Partial evidence
- Its own public description names part of 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 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 23 of 35 gene therapy companies based in the United Kingdom
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Gene therapy companies based in the United Kingdom at a glance
As of Sep 7, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 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 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 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 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, 872 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 7, 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 do gene therapy companies do?
Gene therapy companies develop or support treatments that modify, replace, add, or regulate genetic material to address disease.
How many gene therapy companies are based in the United Kingdom?
The directory lists 35 gene therapy companies based in the United Kingdom.
Which city has the most gene therapy companies?
London is the single most-represented city among the companies on the list.
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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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