Company lists · Data refreshed September 2026

Top 25 Pharmaceutical active ingredients manufacturers based in the United Kingdom

Name: Pharmaceutical active ingredients manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 87 companies tracked

RevenueBase identified 87 pharmaceutical active ingredients manufacturers headquartered in the United Kingdom as of September 2026 and tracks 841 professional contacts across them, including 214 with verified work emails. London is the largest hub.

This list covers pharmaceutical active ingredients 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 17, 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 17, 2026 86% judged on-target in blind review

87Companies

841Contacts tracked

214Verified emails

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The 25 largest pharmaceutical active ingredients manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 87 pharmaceutical active ingredients manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical active ingredients manufacturers: 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	Xeal Pharma	Partial evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	51-200	100 contacts →
	Partial evidence “Xeal Pharma is a specials manufacturer with a reputation in the industry for quality, reliability and efficiency.” Source: RevenueBase Database · checked Sep 17, 2026
2	Noumed Life Sciences Limited	Partial evidence	Maidenhead, United KingdomHQ checked Sep 17, 2026	51-200	87 contacts →
	Partial evidence “Founded in 2013 and operationalized in 2016, Noumed Life Sciences is a generics pharmaceutical manufacturing company based out of the United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
3	Teva UK Limited	Partial evidence	Eastbourne, United KingdomHQ checked Sep 17, 2026	51-200	66 contacts →
	Partial evidence “UK/IE operation of a expanding global conglomerate Company dealing in pharmaceutical generics with added-value as well as routine products.” Source: RevenueBase Database · checked Sep 17, 2026
4	MNK	Indirect evidence	S41, United KingdomHQ checked Sep 17, 2026	51-200	41 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
5	Ransom Naturals LTD	Strong evidence	Hitchin, United KingdomHQ checked Sep 17, 2026	51-200	37 contacts →
	Strong evidence “For over 180 years, Ransom Naturals has combined botanical expertise with scientific excellence to develop and manufacture premium natural extracts for the pharmaceutical…” Source: RevenueBase Database · checked Sep 17, 2026
6	Spectrumx	Strong evidence	Knutsford, United KingdomHQ checked Sep 17, 2026	11-50	31 contacts →
	Strong evidence “SpectrumX is a UK-based pharmaceutical manufacturer operating an MHRA-licensed facility for the production of unlicensed medicines.” Source: RevenueBase Database · checked Sep 17, 2026
7	KEY Pharmaceuticals Limited	Partial evidence	Cambridgeshire, United KingdomHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “Based in Worcestershire, UK, with additional offices in Cambridge, Dublin and Pune, Key Pharmaceuticals is proud to be part of the Bestway Health Care Group, which has extensive…” Source: RevenueBase Database · checked Sep 17, 2026
8	Universal Pharma LTD	Strong evidence	High Wycombe, United KingdomHQ checked Sep 17, 2026	11-50	27 contacts →
	Strong evidence “Experts in Active Pharmaceutical Ingredients(APIs), Intermediates and other difficult to source Pharmaceutical ingredients- Cover APIs requirements from Development, Scale-Up and…” Source: RevenueBase Database · checked Sep 17, 2026
9	Whyte Chemicals LTD	Indirect evidence	Finchley, United KingdomHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “Whyte Chemicals is a privately owned company established in 1976 with a turnover in the region of 60 million.” Source: RevenueBase Database · checked Sep 17, 2026
10	Torrent Pharma UK LTD	Strong evidence	Crawley, United KingdomHQ checked Sep 17, 2026	11-50	21 contacts →
	Strong evidence “Torrent Pharma UK Limited (TP-UK) is a wholly owned subsidiary of Torrent Pharmaceuticals Limited, a global pharmaceutical company specialising in the manufacture and distribution…” Source: RevenueBase Database · checked Sep 17, 2026
11	Flamingo Pharma UK LTD	Partial evidence	Kingston Upon Hull, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Flamingo Pharma UK is a wholly owned subsidiary of Flamingo Pharmaceuticals India.” Source: RevenueBase Database · checked Sep 17, 2026
12	ICE Pharma Group	Partial evidence	Bracknell, United KingdomHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “We provide Pharmaceutical Products & Solutions We build and design pharmaceutical solutions to meet your business needs.” Source: RevenueBase Database · checked Sep 17, 2026
13	MSN Laboratories Europe Limited	Indirect evidence	Hitchin, United KingdomHQ checked Sep 17, 2026	1-10	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 17, 2026
14	DR Ready LTD	Indirect evidence	Ilford, United KingdomHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
15	Safedale Pharmacy	Indirect evidence	Borehamwood, United KingdomHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
16	Active Pharma Supplies Limited	Indirect evidence	Leyland, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “All the starting materials you require – rapidly.” Source: RevenueBase Database · checked Sep 17, 2026
17	Celix Pharma LTD	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1-10	11 contacts →
	Partial evidence “Celix Pharma is a generic pharmaceutical company based in the UK, focusing on the UK and European generic markets.” Source: RevenueBase Database · checked Sep 17, 2026
18	Syntor Fine Chemicals LTD NOW Actylis	Indirect evidence	Runcorn, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Actylis was created from the merger of eight experienced specialty manufacturing companies and three sourcing firms, integrated into a single entity.” Source: RevenueBase Database · checked Sep 17, 2026
19	CINV	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “CINV is a pharmaceutical supplier focused on producing a GMP-certified product for global execution from our South African facility.” Source: RevenueBase Database · checked Sep 17, 2026
20	Unifect LTD	Strong evidence	Fernhurst, United KingdomHQ checked Sep 17, 2026	11-50	8 contacts →
	Strong evidence “Unifect Ltd offers a comprehensive range of uniquely effective ingredients to the cosmetic and pharmaceutical industries sourced from some of the foremost suppliers” Source: RevenueBase Database · checked Sep 17, 2026
21	Whyte International Limited	Partial evidence	Watford, United KingdomHQ checked Sep 17, 2026	51-200	8 contacts →
	Partial evidence “Whyte International Limited is a medium size generic pharmaceutical manufacturing and distribution company with headquarters in London and sales and marketing operations in Latin…” Source: RevenueBase Database · checked Sep 17, 2026
22	Target Healthcare Limited	Strong evidence	East Kilbride, United KingdomHQ checked Sep 17, 2026	501-1,000	7 contacts →
	Strong evidence “Target Healthcare is a distinguished MHRA-approved pharmaceutical manufacturer and wholesaler supplying generic, branded, and unlicensed medicines to pharmacies, dispensing…” Source: RevenueBase Database · checked Sep 17, 2026
23	Nexcape Pharmaceuticals LTD	Partial evidence	Hertfordshire, United KingdomHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Nexcape Pharmaceuticals Ltd is a young and dynamic British pharmaceutical company.” Source: RevenueBase Database · checked Sep 17, 2026
24	Millstone Durbax LTD	Strong evidence	Runcorn, United KingdomHQ checked Sep 17, 2026	11-50	6 contacts →
	Strong evidence “Millstone Durbax manufactures, develops and supplies high-quality speciality feed additives, pharmaceutical, and chemical industries.” Source: RevenueBase Database · checked Sep 17, 2026
25	Ubichem	Partial evidence	Redditch, United KingdomHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Ubichem partners with Pharmaceutical Innovators who trust Ubichem to provide ultimate customer value through technical, product and regulatory solutions.” Source: RevenueBase Database · checked Sep 17, 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: pharmaceutical active ingredients 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 pharmaceutical active ingredients manufacturers.
Partial evidence: Its own public description names part of pharmaceutical active ingredients manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical active ingredients 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 87 pharmaceutical active ingredients manufacturers based in the United Kingdom

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Pharmaceutical active ingredients manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

25.4%Verified-email coverage

9.7Average contacts per company

11-50Median size (employees)

20.7%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 87 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 pharmaceutical active ingredients 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 “pharmaceutical active ingredients 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 pharmaceutical active ingredients 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 pharmaceutical active ingredients 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, 214 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 17, 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 pharmaceutical active ingredients 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 pharmaceutical active ingredients manufacturers are there based in the United Kingdom?

RevenueBase identified 87 pharmaceutical active ingredients 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?

Xeal Pharma, headquartered in Birmingham, tops this list with the largest team on record.

Which city has the most pharmaceutical active ingredients manufacturers?

London leads with 18 headquartered companies, followed by Runcorn (3) and Watford (3).

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 214 verified decision-maker contacts tracked across these 87 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 17, 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.