Company lists · Data refreshed September 2026

Top 24 Assay development companies based in the United Kingdom

Name: Assay development companies 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 126 companies tracked

RevenueBase identified 126 assay development companies headquartered in the United Kingdom as of September 2026 and tracks 8,134 professional contacts across them, including 3,068 with verified work emails. London is the largest hub.

This list covers assay development companies 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

126Companies

8,134Contacts tracked

3,068Verified emails

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The 24 largest assay development companies based in the United Kingdom

Ranked by team size

Top 24 of 126 assay development companies 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 assay development 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	ABCAM	Indirect evidence	Cambridge, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,063 contacts →
	Indirect evidence “At Abcam, we believe the scientific community goes further, faster when we go there together.” Source: RevenueBase Database · checked Sep 19, 2026
2	The Binding Site	Indirect evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	10001+	558 contacts →
	Indirect evidence “Binding Site, part of Thermo Fisher Scientific, is committed to improving patient lives worldwide through education, collaboration and innovation.” Source: RevenueBase Database · checked Sep 19, 2026
3	Immunodiagnostic Systems IDS	Indirect evidence	Boldon, United KingdomHQ checked Sep 19, 2026	201-500	549 contacts →
	Indirect evidence “Immunodiagnostic Systems (IDS) is an established in vitro diagnostic solution provider to the clinical laboratory market.” Source: RevenueBase Database · checked Sep 19, 2026
4	LGC Biosearch Technologies	Partial evidence	Hoddesdon, United KingdomHQ checked Sep 19, 2026	501-1,000	433 contacts →
	Partial evidence “Whether you’re developing molecular diagnostic tests, clinical genomics assays, novel oligo therapeutics or using genotyping to develop improved, sustainable crops - high-quality…” Source: RevenueBase Database · checked Sep 19, 2026
5	Cyprotex	Indirect evidence	Macclesfield, United KingdomHQ checked Sep 19, 2026	51-200	192 contacts →
	Indirect evidence “Founded in Cyprotex has grown to become an industry leader in in vitro and in silico ADME-Tox.” Source: RevenueBase Database · checked Sep 19, 2026
6	Synexa Life Sciences	Strong evidence	Manchester, United KingdomHQ checked Sep 19, 2026	201-500	166 contacts →
	Strong evidence “Synexa Life Sciences is a biomarker and bioanalytical lab CRO, specialising in the development, validation, and delivery of a wide range of complex and custom-designed assays.” Source: RevenueBase Database · checked Sep 19, 2026
7	EKF Diagnostics	Indirect evidence	Penarth, United KingdomHQ checked Sep 19, 2026	201-500	122 contacts →
	Indirect evidence “Empowering Decision-Making.” Source: RevenueBase Database · checked Sep 19, 2026
8	ANGLE	Partial evidence	Surrey Research Park, United KingdomHQ checked Sep 19, 2026	51-200	104 contacts →
	Partial evidence “ANGLE is a world-leading liquid biopsy company with innovative circulating tumour cell (CTC) diagnostic solutions for use in research, drug development and clinical oncology using…” Source: RevenueBase Database · checked Sep 19, 2026
9	Domainex	Indirect evidence	Saffron Walden, United KingdomHQ checked Sep 19, 2026	51-200	97 contacts →
	Indirect evidence “Domainex is a fully integrated drug discovery service company based near Cambridge, UK serving pharmaceutical, biotechnology, academic and patient foundations globally.” Source: RevenueBase Database · checked Sep 19, 2026
10	Abingdon Health PLC	Indirect evidence	Sand Hutton York, United KingdomHQ checked Sep 19, 2026	201-500	87 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
11	Bioascent	Indirect evidence	Newhouse, United KingdomHQ checked Sep 19, 2026	51-200	84 contacts →
	Indirect evidence “Founded in 2013, BioAscent is a leading provider of integrated drug discovery services based at the former Organon / MSD R&D site in Newhouse, Scotland, UK.” Source: RevenueBase Database · checked Sep 19, 2026
12	Apis Assay Technologies LTD	Indirect evidence	Manchester, United KingdomHQ checked Sep 19, 2026	51-200	69 contacts →
	Indirect evidence “APIS is leveraging systems biology, interrogating multi-OMICs biodata, and deploying innovative ‘Clickmer’ ligand binding technology, for the validation and translation of…” Source: RevenueBase Database · checked Sep 19, 2026
13	Novacyt Group	Indirect evidence	Chandlers Ford, United KingdomHQ checked Sep 19, 2026	201-500	55 contacts →
	Indirect evidence “Novacyt is an international molecular diagnostics company providing a growing portfolio of integrated technologies and services, primarily focused on delivery of genomic medicine.” Source: RevenueBase Database · checked Sep 19, 2026
14	Labcorp Limited	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 19, 2026	11-50	48 contacts →
	Indirect evidence “We believe in harnessing science for human good.” Source: RevenueBase Database · checked Sep 19, 2026
15	Oxford Biodynamics PLC	Indirect evidence	Oxford, United KingdomHQ checked Sep 19, 2026	51-200	47 contacts →
	Indirect evidence “Oxford BioDynamics (OBD) is a global biotech company advancing personalized healthcare by developing and commercializing precision medicine tests for life-changing diseases.” Source: RevenueBase Database · checked Sep 19, 2026
16	Randox Toxicology LTD	Indirect evidence	County Antrim, United KingdomHQ checked Sep 19, 2026	51-200	46 contacts →
	Indirect evidence “Delivering innovative solutions for fast and accurate drug detection, Randox Toxicology is a primary manufacturer of Biochip Array Technology, ELISA, reagents, automated systems…” Source: RevenueBase Database · checked Sep 19, 2026
17	Arctoris	Indirect evidence	Abingdon, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “Arctoris is a tech-enabled Partnership Research Organization (PRO) headquartered in Oxford.” Source: RevenueBase Database · checked Sep 19, 2026
18	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
19	SB Drug Discovery	Partial evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Partial evidence “SB Drug Discovery (part of Sygnature Discovery) is an industry leader in specialist contract research, providing critical data for novel drug development through cell line…” Source: RevenueBase Database · checked Sep 19, 2026
20	Epistem LTD	Indirect evidence	Manchester, United KingdomHQ checked Sep 19, 2026	11-50	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	Qnostics	Indirect evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Qnostics is a manufacturer of a variety of own-label and custom manufactured molecular controls.” Source: RevenueBase Database · checked Sep 19, 2026
22	Biofortuna	Indirect evidence	Deeside, United KingdomHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “At Biofortuna, we form unique partnerships with the most innovative healthcare and life science companies and work together to enhance health and wellbeing all over the world.” Source: RevenueBase Database · checked Sep 19, 2026
23	Oncologica UK	Indirect evidence	Chesterford, United KingdomHQ checked Sep 19, 2026	51-200	32 contacts →
	Indirect evidence “Oncologica is a world leading precision cancer medicine and Covid-19 testing and genomic sequencing laboratory based in Cambridge, UK.” Source: RevenueBase Database · checked Sep 19, 2026
24	Origin Sciences	Partial evidence	Cambridge, United KingdomHQ checked Sep 19, 2026	11-50	32 contacts →
	Partial evidence “Origin Sciences develops and manufactures innovative diagnostic tools and assays that enable the detection, diagnosis and monitoring of gastrointestinal diseases.” 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: assay development 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 assay development companies.
Partial evidence: Its own public description names part of assay development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name assay development 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 24 of 126 assay development companies based in the United Kingdom

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Assay development companies based in the United Kingdom at a glance

As of Sep 19, 2026

37.7%Verified-email coverage

64.6Average contacts per company

11-50Median size (employees)

11.1%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

10001+

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 126 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 assay development 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 the United Kingdom whose own description of what they do matches “assay development 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 assay development 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 assay development companies, 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, 3,068 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.

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 assay development 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 assay development companies are there based in the United Kingdom?

RevenueBase identified 126 assay development companies 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?

ABCAM, headquartered in Cambridge, tops this list with the largest team on record.

Which city has the most assay development companies?

London leads with 14 headquartered companies, followed by Cambridge (10) and Crumlin (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 3,068 verified decision-maker contacts tracked across these 126 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.