Company lists · Data refreshed September 2026
Top 25 Contract chemical manufacturers based in the United Kingdom
RevenueBase identified 223 contract chemical manufacturers headquartered in the United Kingdom as of September 2026 and tracks 8,784 professional contacts across them, including 4,909 with verified work emails. London is the largest hub.
This list covers contract chemical 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 16, 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 contract chemical manufacturers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,577 contacts → | ||||
Indirect evidence “Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 209 contacts → | ||||
Partial evidence “Concept Life Sciences is a knowledge-based, science-led and customer-focused contract research and manufacturing organisation with world-leading expertise in the pharmaceutical…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 160 contacts → | ||||
Strong 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 150 contacts → | ||||
Strong evidence “Briar Chemicals delivers contract and custom manufacturing solutions to customers across the globe.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 110 contacts → | ||||
Partial evidence “Upperton Pharma Solutions is a specialist CDMO (contract development and manufacturing organisation) providing formulation and dosage form development and clinical trial…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 106 contacts → | ||||
Indirect evidence “Huntingdon Life Sciences was founded in 1952.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 94 contacts → | ||||
Partial evidence “Delivering every element - Tennants Distribution Ltd is a leading independent distributor of chemicals.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 87 contacts → | ||||
Indirect evidence “Thomas Swan & Co.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 86 contacts → | ||||
Indirect evidence “Onyx Scientific is a CDMO that helps pharmaceutical and biotech companies across the globe, accelerate candidates from discovery to manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 84 contacts → | ||||
Strong evidence “Fine Organics, a Lianhe Chemical Technology business, is a leading European contract manufacturer of high quality fine chemicals for use in the Crop Protection, Pharmaceutical and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 64 contacts → | ||||
Strong evidence “We are Selden Research Ltd, the UK’s largest privately owned industrial manufacturer of cleaning chemical products for the professional market.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 50 contacts → | ||||
Indirect evidence “The 2M Group of Companies supply added value chemistry-based products, services, and applications know-how to the life science and material science sectors.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 50 contacts → | ||||
Partial evidence “Founded in 1860, Banner supplies an extensive range of solvents and specialty chemicals to a variety of market sectors.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 47 contacts → | ||||
Partial evidence “We’re specialists in the manufacture and supply of aromatic, heterocyclic and aliphatic compounds, fluorochemicals and life sciences reagents, offering unrivalled service and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 47 contacts → | ||||
Partial evidence “At Libra Speciality Chemicals, we have been setting the standards in the provision of high-quality chemical and speciality surfactant manufacturing for over 50 years.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 44 contacts → | ||||
Strong evidence “Molekula is a manufacturer and distributor of Fine Chemicals and Biochemicals in Bulk and Research quantities Founded in in France and the UK to initially support the Chemical…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 41 contacts → | ||||
Strong evidence “Exwold is a contract chemical processing company based in the UK with decades of experience formulating and processing speciality chemicals for multi-national chemical and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 39 contacts → | ||||
Partial evidence “Alcohols Limited is a UK based chemical distribution company with sales, production and distribution sites in Hertfordshire, London and the West Midlands.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 37 contacts → | ||||
Indirect evidence “At Lake, we’re innovators – we bring thinkers together to make incredible things happen – delivering real value for suppliers and customers.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 36 contacts → | ||||
Partial evidence “High Force Research specialise in chemical synthesis and R&D and offer chemistry built on many years of experience in development and scale-up of complex syntheses of molecules…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 contacts → | ||||
Indirect evidence “The core philosophy at LevertonHELM is simple: to continually update our products and services in line with customer requirements whilst maintaining the highest possible level of…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Partial evidence “Founded in 1979, Miswa Chemicals is a leading supplier of specialty chemicals serving B2B markets across multiple industries.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Strong evidence “Endeavour Speciality Chemicals is an innovative UK-based manufacturer of speciality organic intermediates and together with our parent company Robinson Brothers we offer products…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 33 contacts → | ||||
Strong evidence “Leading Solvent Supplies Ltd (Leading Solvents) is one of the UK’s premier independent manufacturers, blenders, and distributors of high-purity solvents, chemicals, and industrial…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Partial evidence “Fluorochem is a leading supplier in the chemical industry, with nearly 60 years of experience supporting scientists in chemistry, pharmaceuticals and medicinal chemistry, and…” Source: RevenueBase Database · checked Sep 16, 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: contract chemical 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 contract chemical manufacturers.
- Partial evidence
- Its own public description names part of contract chemical manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name contract chemical 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 223 contract chemical manufacturers based in the United Kingdom
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Contract chemical manufacturers based in the United Kingdom at a glance
As of Sep 16, 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 223 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 contract chemical 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 “contract chemical 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 contract chemical 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 contract chemical 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, 4,909 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 16, 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 contract chemical 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 contract chemical manufacturers are there based in the United Kingdom?
RevenueBase identified 223 contract chemical 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?
Almac Group, headquartered in Craigavon, tops this list with the largest team on record.
Which city has the most contract chemical manufacturers?
London leads with 20 headquartered companies, followed by Runcorn (8) and Manchester (5).
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 4,909 verified decision-maker contacts tracked across these 223 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 16, 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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