Company lists · Data refreshed September 2026
Top 25 Small molecule manufacturers based in the United Kingdom
RevenueBase identified 93 small molecule manufacturers headquartered in the United Kingdom as of September 2026 and tracks 3,905 professional contacts across them, including 859 with verified work emails. London is the largest hub.
This list covers small molecule manufacturers 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 18, 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 small molecule manufacturers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 330 contacts → | ||||
Indirect evidence “We develop and apply fragment and structure-based methods to solve problems in drug discovery, and have generated cell active lead compounds and development candidates against…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 300 contacts → | ||||
Indirect evidence “Pharmanovia is an innovative specialty pharmaceutical company with a clear purpose: helping patients lead fuller lives today and tomorrow.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 218 contacts → | ||||
Indirect evidence “GW Pharmaceuticals is now part of Jazz Pharmaceuticals.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 176 contacts → | ||||
Indirect evidence “Aspire Pharma is an innovative, privately owned British pharmaceutical company established in 2009.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 160 contacts → | ||||
Partial evidence “Lianhetech Seal Sands is a leading European contract manufacturer of high quality fine chemicals for use in the Crop Protection, Pharmaceutical and Performance chemicals markets.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 114 contacts → | ||||
Strong evidence “CatSci Ltd is an award-winning innovation partner, dedicated to breaking down the silos in small molecules, TACS, glues and oligonucleotides CMC development to accelerate the…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 57 contacts → | ||||
Indirect evidence “At Galen, we have purpose and passion in everything we do and encourage our people to dare to be extraordinary so we can benefit the health of all generations.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 41 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 40 contacts → | ||||
Strong 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 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 39 contacts → | ||||
Indirect evidence “PhoreMost is a new-model drug discovery company based in Cambridge, UK.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 32 contacts → | ||||
Indirect evidence “C4XD is a pioneering Drug Discovery company, combining scientific expertise with cutting-edge technologies to efficiently deliver world‑leading medicines.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 28 contacts → | ||||
Indirect evidence “Northumbria Pharma, a British pharmaceutical company, is focused on developing a broad range of safe, effective medicines to solve unmet patient needs.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 24 contacts → | ||||
Indirect evidence “SAFEDALE LIMITED is a pharmaceuticals company.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Indirect evidence “NICOBRAND LIMITED is a Pharmaceutical company located in Castleroe Road, Coleraine, Northern Ireland.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Strong evidence “Astellas Engineered Small Molecules U.K.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Indirect 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 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect evidence “A drug development company with an innovative model for Clinical Development.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 13 contacts → | ||||
Strong evidence “Torx® Software, a collaboration between Cresset® Software and Discovery and Elixir™ Software, is a small molecule drug discovery platform.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 13 contacts → | ||||
Indirect evidence “MSN LABORATORIES EUROPE LIMITED is a company based out of INVISION HOUSE WILBURY WAY, HITCHIN, United Kingdom.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Partial evidence “Mironid Limited is an innovative new drug discovery company that develops proprietary drug candidate molecules by modulating the activity of key cell signalling proteins.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Indirect evidence “At Aptorum, we believe that by facilitating the development of medical innovations, particularly in those that able to meet current unmet medical needs and significantly improve…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Indirect evidence “Morningside Healthcare is committed to delivering quality products that help to build a brighter future.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “Bioprojet UK Limited is a UK based pharmaceutical company founded in June dedicated to the development, manufacturing, and supply of prescription-only medication throughout the…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Partial evidence “A small independent manufacturing company, producing ultra-pure solvents for exacting laboratory applications.” Source: RevenueBase Database · checked Sep 18, 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: small molecule manufacturers. 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 small molecule manufacturers.
- Partial evidence
- Its own public description names part of small molecule manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name small molecule manufacturers. 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 93 small molecule manufacturers based in the United Kingdom
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Small molecule manufacturers based in the United Kingdom at a glance
As of Sep 18, 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 93 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 small molecule manufacturers, 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 “small molecule manufacturers”. 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 small molecule manufacturers), 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 small molecule manufacturers, 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, 859 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 18, 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 small molecule manufacturers, 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 small molecule manufacturers are there based in the United Kingdom?
RevenueBase identified 93 small molecule manufacturers 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?
Vernalis, headquartered in Great Abington Cambridge, tops this list with the largest team on record.
Which city has the most small molecule manufacturers?
London leads with 20 headquartered companies, followed by Cambridge (7) and Edinburgh (4).
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 859 verified decision-maker contacts tracked across these 93 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 18, 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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