Company lists · Data refreshed September 2026

Top 25 Cancer drug developers based in the United Kingdom

Name: Cancer drug developers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 107 companies tracked

RevenueBase identified 107 cancer drug developers headquartered in the United Kingdom as of September 2026 and tracks 1,746 professional contacts across them, including 830 with verified work emails. London is the largest hub.

This list covers cancer drug developers 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 19, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

107Companies

1,746Contacts tracked

830Verified emails

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The 25 largest cancer drug developers based in the United Kingdom

Ranked by team size

Top 25 of 107 cancer drug developers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to cancer drug developers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bristol Myers Squibb UK & Ireland	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	317 contacts →
	Indirect evidence “Bristol Myers Squibb is a differentiated company, led by our revolutionary BioPharma strategy that combines the reach and resources of a major pharmaceutical firm with the…” Source: RevenueBase Database · checked Sep 19, 2026
2	Daiichi Sankyo UK	Indirect evidence	Uxbridge, United KingdomHQ checked Sep 19, 2026	201-500	117 contacts →
	Indirect evidence “Daiichi Sankyo UK is a pharmaceutical company with corporate origins in Japan.” Source: RevenueBase Database · checked Sep 19, 2026
3	Eusa Pharma	Partial evidence	Hemel Hempstead, United KingdomHQ checked Sep 19, 2026	201-500	70 contacts →
	Partial evidence “We are committed to transforming the lives of people affected by cancer or rare disease, globally.” Source: RevenueBase Database · checked Sep 19, 2026
4	Enara BIO	Partial evidence	Oxford, United KingdomHQ checked Sep 19, 2026	51-200	64 contacts →
	Partial evidence “Enara Bio is shining a light on Dark Antigen and T-cell biology to develop cancer immunotherapies designed to improve treatment outcomes for broad populations of cancer patients…” Source: RevenueBase Database · checked Sep 19, 2026
5	Oxford Biotherapeutics	Indirect evidence	Oxford, United KingdomHQ checked Sep 19, 2026	11-50	60 contacts →
	Indirect evidence “Oxford BioTherapeutics (OBT) is a clinical stage oncology company based in Oxford, UK; San Jose, CA and Morristown, NJ, USA, with a pipeline of first-in-class immuno-oncology (IO)…” Source: RevenueBase Database · checked Sep 19, 2026
6	Cellcentric	Partial evidence	Cambridge, United KingdomHQ checked Sep 19, 2026	11-50	47 contacts →
	Partial evidence “Inobrodib is the first small molecule drug in the clinic targeting twin proteins p300 and CBP.” Source: RevenueBase Database · checked Sep 19, 2026
7	Avacta Therapeutics	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	46 contacts →
	Partial evidence “Avacta is a clinical stage biotechnology company expanding the reach of highly potent cancer therapies with the pre\|CISION® platform.” Source: RevenueBase Database · checked Sep 19, 2026
8	Ellipses Pharma	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Strong evidence “Ellipses Pharma is an international drug development company, focused exclusively on the advancement of innovative cancer treatments through the clinic.” Source: RevenueBase Database · checked Sep 19, 2026
9	Curve Therapeutics	Indirect evidence	Southampton, United KingdomHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “Our mission is to transform the discovery of first-in-class small molecule therapeutics by broadening the landscape of disease targets that can be drugged.” Source: RevenueBase Database · checked Sep 19, 2026
10	Mereo Biopharma	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “Welcome to Mereo BioPharma, we are an agile biopharmaceutical company, focused on finding and bringing to market therapies that will improve the lives of people living with a rare…” Source: RevenueBase Database · checked Sep 19, 2026
11	Medac Pharma UK	Indirect evidence	Stirling, United KingdomHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “medac Pharma is a privately owned, pharmaceutical company specialising in the development, diagnosis and treatment of diseases within the key areas of oncology, urology…” Source: RevenueBase Database · checked Sep 19, 2026
12	Phoremost LTD	Partial evidence	Pampisford, United KingdomHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “PhoreMost is a new-model drug discovery company based in Cambridge, UK.” Source: RevenueBase Database · checked Sep 19, 2026
13	Iksuda Therapeutics	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 19, 2026	11-50	38 contacts →
	Indirect evidence “Through our highly experienced ADC Research & Development Team, we are building a pipeline of class-leading ADCs with superior therapeutic index (TI) for difficult-to-treat…” Source: RevenueBase Database · checked Sep 19, 2026
14	Pheon Therapeutics	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “Pheon Therapeutics is leveraging two decades of ADC experience to build a novel pipeline of next generation ADCs which offer the potential to treat solid tumors and liquid cancers…” Source: RevenueBase Database · checked Sep 19, 2026
15	Mosaic TX	Indirect evidence	Babraham, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “ABOUT US Mosaic Therapeutics is an oncology therapeutics company delivering precision medicines for patient groups with few targeted treatment options today.” Source: RevenueBase Database · checked Sep 19, 2026
16	Nucana PLC	Partial evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “NuCana is a clinical-stage biopharmaceutical company focused on significantly improving treatment outcomes for patients with cancer by applying our phosphoramidate chemistry…” Source: RevenueBase Database · checked Sep 19, 2026
17	Dark Blue Therapeutics	Partial evidence	Oxford, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Pioneering the next generation of precision medicines to deliver a portfolio of transformative cancer therapies.” Source: RevenueBase Database · checked Sep 19, 2026
18	Cumulus Oncology	Partial evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	1-10	16 contacts →
	Partial evidence “Cumulus Oncology is developing anti-cancer therapies for clinical settings in areas of high unmet need, with the aim of developing improved outcomes for cancer patients.” Source: RevenueBase Database · checked Sep 19, 2026
19	Akari Therapeutics, PLC	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Akari Therapeutics is an oncology biotechnology company developing novel payload antibody drug conjugates (ADCs).” Source: RevenueBase Database · checked Sep 19, 2026
20	Alethiomics	Partial evidence	Oxford, United KingdomHQ checked Sep 19, 2026	1-10	14 contacts →
	Partial evidence “From single cells to novel targets We uncover new biology to discover and develop life changing treatments for patients with blood cancer” Source: RevenueBase Database · checked Sep 19, 2026
21	Poolbeg Pharma PLC	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Poolbeg Pharma plc (AIM: POLB) is a clinical-stage biopharmaceutical company with a core focus on transforming the cancer immunotherapy field.” Source: RevenueBase Database · checked Sep 19, 2026
22	Pear BIO	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Pear Bio analyzes patient tumor samples and data with a proprietary computational biology platform to deconvolute complex cancer biology and drive patient-centric functional…” Source: RevenueBase Database · checked Sep 19, 2026
23	Cv6 Therapeutics	Indirect evidence	Belfast, United KingdomHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “Advancing a First in Class Oncology Therapy in Phase 1a Clinical Trials with a Pipeline for Inflammatory Diseases” Source: RevenueBase Database · checked Sep 19, 2026
24	Sonotarg LTD	Strong evidence	Belfast, United KingdomHQ checked Sep 19, 2026	1-10	11 contacts →
	Strong evidence “SonoTarg has developed a new approach to targeted cancer therapy that enables physicians to specifically activate therapeutics at the site of tumour and minimise the adverse…” Source: RevenueBase Database · checked Sep 19, 2026
25	Treos BIO	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Treos Bio is a clinical stage company introducing a disruptive computational technology to change the paradigm of cancer immunotherapy development by resolving the dual challenges…” Source: RevenueBase Database · checked Sep 19, 2026

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: cancer drug developers. 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 cancer drug developers.
Partial evidence: Its own public description names part of cancer drug developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cancer drug developers. 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 107 cancer drug developers based in the United Kingdom

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Cancer drug developers based in the United Kingdom at a glance

As of Sep 19, 2026

47.5%Verified-email coverage

16.3Average contacts per company

1-10Median size (employees)

32.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 107 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 cancer drug developers, 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 “cancer drug developers”. 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 cancer drug developers), 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 cancer drug developers, 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, 830 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 19, 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.

Cancer drug developers by metro

Cancer drug developers in London35

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 cancer drug developers, 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 cancer drug developers are there based in the United Kingdom?

RevenueBase identified 107 cancer drug developers 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?

Bristol Myers Squibb UK & Ireland, headquartered in London, tops this list with the largest team on record.

Which city has the most cancer drug developers?

London leads with 35 headquartered companies, followed by Oxford (15) and Cambridge (13).

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 830 verified decision-maker contacts tracked across these 107 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 19, 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.