Company lists · Data refreshed September 2026

Top 25 Biotech companies based in London, United Kingdom

Name: Biotech companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 112 companies tracked

RevenueBase identified 112 biotech companies headquartered in London, United Kingdom as of September 2026 and tracks 1,328 professional contacts across them, including 404 with verified work emails and 104 with mobile numbers. London is the largest hub.

This list covers biotech companies headquartered in London, 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 7, 2026 86% judged on-target in blind review

112Companies

1,328Contacts tracked

404Verified emails

104Mobile numbers

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The 25 largest biotech companies based in London, United Kingdom

Ranked by team size

Top 25 of 112 biotech companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to biotech companies: 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	Relation	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	105 contacts →
	“We are an end-to-end biotech developing transformational medicines, with technology at our core.” Source: company website · checked Sep 7, 2026
2	Resilient Collective	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	66 contacts →
	“Biotech innovation depends on having the right expertise at the right time.” Source: company website · checked Sep 7, 2026
3	Labgenius Therapeutics	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	63 contacts →
	“LabGenius Therapeutics ("LabGenius") is a drug discovery company pioneering the discovery of next-generation therapeutic antibodies.” Source: company website · checked Sep 7, 2026
4	Bioindustry Association BIA	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	61 contacts →
	“The BioIndustry Association (BIA) is the voice of the innovative life sciences and biotech industry, enabling and connecting the UK ecosystem so that businesses can start, grow…” Source: company website · checked Sep 7, 2026
5	Bactobio	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	57 contacts →
	“Bactobio is a London-based biotechnology company that uses breakthroughs in genomics, machine learning and bioengineering to culture the 99% of microbes that have previously been…” Source: company website · checked Sep 7, 2026
6	Hoxton Farms	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	56 contacts →
	“Based in London, Hoxton Farms builds modular clusters of bioreactors to grow high-margin products from stem cells for food and pharma.” Source: company website · checked Sep 7, 2026
7	Alchemab Therapeutics LTD	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	54 contacts →
	“Alchemab is harnessing the naturally protective power of patient antibodies to keep people free of hard-to-treat disease in a unique and transformative approach to drug discovery…” Source: company website · checked Sep 7, 2026
8	Nucleate UK	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	51 contacts →
	“Nucleate is a nonprofit organisation dedicated to empowering the next generation of biotech leaders.” Source: company website · checked Sep 7, 2026
9	Science Entrepreneur Club	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	37 contacts →
	“We’re a non-profit on a mission to build meaningful communities to enable innovation and connect the life science ecosystem.” Source: company website · checked Sep 7, 2026
10	HYRIS	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	26 contacts →
	“Hyris is an innovation-based, fast-growing biotech Company, which aims to democratize genetic analysis by offering its partners and clients a disruptive System which enables…” Source: company website · checked Sep 7, 2026
11	Centauri Therapeutics Limited	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	23 contacts →
	“Centauri Therapeutics Limited is a UK-based biotechnology company focused on the discovery and development of novel molecules targeting life threatening diseases.” Source: company website · checked Sep 7, 2026
12	Inoviv	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	21 contacts →
	“Inoviv uses a novel technology platform based on targeted proteomics to support pharmaceutical companies with biomarker test development.” Source: company website · checked Sep 7, 2026
13	Salient BIO	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	19 contacts →
	“Salient Bio is an innovative, fast-growing biotech start-up combining synthetic biology and robotics to build digital-first laboratories that make diagnostic testing available to…” Source: company website · checked Sep 7, 2026
14	Pentabind	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	16 contacts →
	“PentaBind is a VC-backed drug discovery company using Artificial Intelligence and an integrated wet-laboratory to design high performance aptamers with multiple drug-like…” Source: company website · checked Sep 7, 2026
15	AB Biotechnology Limited	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	15 contacts →
	“AB BIOTECHNOLOGY LIMITED is a biotechnology company based out of Pentlands Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ” Source: company website · checked Sep 7, 2026
16	Genetix Research	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	11 contacts →
	“The vanguard of innovative biotechnological solutions.” Source: company website · checked Sep 7, 2026
17	Biopharma Deals	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	11 contacts →
	“The BioPharma Deals Conference is the gathering point for the Pharma Biotech dealmakers to initiate, advance, and close deals.This is not a general pharma congress.” Source: company website · checked Sep 7, 2026
18	Yaqrit	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	10 contacts →
	“Yaqrit Limited is developing a family of liver disease treatments that will transform the lives of patients around the world.” Source: company website · checked Sep 7, 2026
19	Herlab	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	10 contacts →
	“HERlab is a synthetic biology company developing advanced microbial platforms to unlock new bioproduction possibilities.” Source: company website · checked Sep 7, 2026
20	Ailurus BIO	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	9 contacts →
	“Ailurus Bio is a pioneering company building biological programs, genetic instructions that act as living software to orchestrate biology.” Source: company website · checked Sep 7, 2026
21	Newform Foods	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	9 contacts →
	“Newform Foods is a biotech company developing a scalable bio-manufacturing platform for cellular agriculture.” Source: company website · checked Sep 7, 2026
22	MGC Pharmaceuticals LTD	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	8 contacts →
	“MGC Pharmaceuticals Limited ("MGC")(MXC: LSE, ASX) is a next-generation Pharma licensed company at the forefront of the emerging global plant-inspired pharmaceutical market.” Source: company website · checked Sep 7, 2026
23	Succession	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	7 contacts →
	“Succession Bio works with life science/biotech companies to help drive sales, licensing, and partnership opportunities.” Source: company website · checked Sep 7, 2026
24	TALVO	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	6 contacts →
	“We're Talvo, The TechBio Talent Company!” Source: company website · checked Sep 7, 2026
25	BSF Enterprise	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	6 contacts →
	“Unlocking the next generation of biotech solutions and financing the development of lab-grown meat, leather, human corneas, and skin substitutes (LON:BSFA).” Source: company website · checked Sep 7, 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: biotech 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 biotech companies.
Partial evidence: Its own public description names part of biotech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biotech 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 25 of 112 biotech companies based in London, United Kingdom

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Biotech companies based in London, United Kingdom at a glance

As of Sep 7, 2026

30.4%Verified-email coverage

7.8%Mobile-number coverage

11.9Average contacts per company

1-10Median size (employees)

101.8%Largest-city concentration · London

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3860–30

1831–60

061–90

090–180

0180+

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 biotech 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 London, United Kingdom whose own description of what they do matches “biotech 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 biotech 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 biotech companies, and records with no verified work email. Companies headquartered outside London 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, 404 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.

Biotech companies by metro in the United Kingdom

Biotech companies in London114
Biotech companies in Cambridge37

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 biotech companies, 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 biotech companies are there based in London, United Kingdom?

RevenueBase identified 112 biotech companies headquartered in London, 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?

Relation, headquartered in London, tops this list with the largest team on record.

Which city has the most biotech companies?

London leads with 114 headquartered companies, followed by Cambridge (37) and Oxford (24).

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 404 verified decision-maker contacts tracked across these 112 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 7, 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.