Company lists · Data refreshed September 2026

Top 25 Assay development companies worldwide

Name: Assay development companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,994 companies tracked

RevenueBase identified 2,994 assay development companies worldwide as of September 2026 and tracks 134,730 professional contacts across them, including 53,923 with verified work emails. The United States is the largest market and San Diego the largest hub.

This list covers assay development companies worldwide, 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. Country and city lists for assay development companies follow the table.

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

2,994Companies

134,730Contacts tracked

53,923Verified emails

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The 25 largest assay development companies worldwide

Ranked by team size

Top 25 of 2,994 assay development companies worldwide, 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	Beckman Coulter Diagnostics	Indirect evidence	Brea, CA, United StatesHQ checked Sep 19, 2026	10001+	10,069 contacts →
	Indirect evidence “A global leader in advanced diagnostics, Beckman Coulter has challenged convention to elevate the diagnostic laboratory’s role in improving patient health for more than 80 years.” Source: RevenueBase Database · checked Sep 19, 2026
2	Cytiva	Indirect evidence	Falhagen, United StatesHQ checked Sep 19, 2026	10001+	9,219 contacts →
	Indirect evidence “Cytiva, now with the life sciences business from Pall Corporation, is a global biotechnology leader dedicated to helping customers discover and commercialize the next generation…” Source: RevenueBase Database · checked Sep 19, 2026
3	Illumina	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	8,987 contacts →
	Partial evidence “At Illumina, our goal is to apply innovative technologies and revolutionary assays to the analysis of genetic variation and function, making studies possible that were not even…” Source: RevenueBase Database · checked Sep 19, 2026
4	Bio-Rad Laboratories	Indirect evidence	Hercules, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	8,149 contacts →
	Indirect evidence “Bio-Rad provides the healthcare industry with innovative and useful products that help life science researchers accelerate the discovery process and medical diagnostic labs obtain…” Source: RevenueBase Database · checked Sep 19, 2026
5	Qiagen	Indirect evidence	Venlo, NetherlandsHQ checked Sep 19, 2026	5,001-10,000	4,577 contacts →
	Indirect evidence “Making improvements in life possible is more than our vision.” Source: RevenueBase Database · checked Sep 19, 2026
6	Cepheid	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	4,445 contacts →
	Indirect evidence “Cepheid is dedicated to improving healthcare by pioneering molecular diagnostics that combine speed, accuracy, and flexibility.” Source: RevenueBase Database · checked Sep 19, 2026
7	Myriad Genetics	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,718 contacts →
	Indirect evidence “Myriad Genetics is a leading molecular diagnostic testing and precision medicine company dedicated to advancing health and well-being for all.” Source: RevenueBase Database · checked Sep 19, 2026
8	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
9	Foundation Medicine	Indirect evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,747 contacts →
	Indirect evidence “Foundation Medicine is a global, patient-focused precision medicine company delivering high-quality, transformative diagnostic solutions in cancer and other diseases.” Source: RevenueBase Database · checked Sep 19, 2026
10	Promega Corporation	Indirect evidence	Madison, WI, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,727 contacts →
	Indirect evidence “At Promega Corporation, creativity and connection drive discovery and innovation.” Source: RevenueBase Database · checked Sep 19, 2026
11	Caris Life Sciences	Indirect evidence	Irving, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “Caris Life Sciences® (Caris) is the leading next-generation TechBio company and precision medicine pioneer that is actively developing and delivering innovative solutions to…” Source: RevenueBase Database · checked Sep 19, 2026
12	Iqvia Laboratories	Partial evidence	United StatesHQ checked Sep 19, 2026	5,001-10,000	1,400 contacts →
	Partial evidence “As a leading global drug discovery and development laboratory services organization, IQVIA Laboratories provides a broad range of central laboratory and specialty biomarker…” Source: RevenueBase Database · checked Sep 19, 2026
13	Agappe Diagnostics LTD	Indirect evidence	Ernakulam, IndiaHQ checked Sep 19, 2026	501-1,000	1,212 contacts →
	Indirect evidence “Your Best Partner In Diagnostics 28 years of dedication has made us what we are today, one of the forerunners in the Indian diagnostics industry.” Source: RevenueBase Database · checked Sep 19, 2026
14	Genscript	Indirect evidence	Piscataway, NJ, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,194 contacts →
	Indirect evidence “GenScript Life Science Group is a part of GenScript Biotech Corporation.” Source: RevenueBase Database · checked Sep 19, 2026
15	Randox	Indirect evidence	Crumlin, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,070 contacts →
	Indirect evidence “Randox is dedicated to improving health worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
16	Inotiv	Partial evidence	West Lafayette, IN, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,015 contacts →
	Partial evidence “WHERE INSIGHTS LEAD TO ANSWERS Expect More In choosing a partner for discovery, development and research models, expect more: more attention, more insight, and a superlative…” Source: RevenueBase Database · checked Sep 19, 2026
17	Medgenome	Indirect evidence	Bangalore, IndiaHQ checked Sep 19, 2026	1,001-5,000	954 contacts →
	Indirect evidence “MedGenome is a global genomics and precision diagnostics company focused on enabling accurate, early and actionable diagnosis through advanced genomic science.” Source: RevenueBase Database · checked Sep 19, 2026
18	Meso Scale Diagnostics, LLC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 19, 2026	1,001-5,000	954 contacts →
	Strong evidence “Founded in 1995, Meso Scale Discovery (MSD) is a global leader in the development, manufacture, and commercialization of innovative assays and instruments for the measurement of…” Source: RevenueBase Database · checked Sep 19, 2026
19	Bioagilytix	Partial evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	915 contacts →
	Partial evidence “BioAgilytix is a leading global contract research organization focused on supporting pharmaceutical and biotech partners in all phases of drug development.” Source: RevenueBase Database · checked Sep 19, 2026
20	Luminex	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	501-1,000	837 contacts →
	Indirect evidence “At Luminex, our mission is to empower labs to obtain reliable, timely, and actionable answers, ultimately advancing health.” Source: RevenueBase Database · checked Sep 19, 2026
21	NEW England Biolabs	Indirect evidence	Ipswich, MA, United KingdomHQ checked Sep 19, 2026	501-1,000	771 contacts →
	Indirect evidence “Established in the mid 1970's, New England Biolabs, Inc.(NEB) is the industry leader in the discovery and production of enzymes for molecular biology applications and now offers…” Source: RevenueBase Database · checked Sep 19, 2026
22	Cellcarta	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	501-1,000	760 contacts →
	Indirect evidence “As a global leader in precision medicine testing services, we partner with our clients to address the most complex biomarker and bioanalytical challenges and deliver highly…” Source: RevenueBase Database · checked Sep 19, 2026
23	Billiontoone	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 19, 2026	501-1,000	696 contacts →
	Indirect evidence “BillionToOne is a precision diagnostics company with the mission to make molecular diagnostics more accurate, efficient, and accessible.” Source: RevenueBase Database · checked Sep 19, 2026
24	Meridian Bioscience INC	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 19, 2026	501-1,000	688 contacts →
	Indirect evidence “Meridian is a fully integrated life science company that develops, manufactures, markets and distributes a broad range of innovative diagnostic test kits, rare reagents, specialty…” Source: RevenueBase Database · checked Sep 19, 2026
25	Solvias	Indirect evidence	Kaiseraugst, SwitzerlandHQ checked Sep 19, 2026	501-1,000	683 contacts →
	Indirect evidence “Solvias helps innovative companies advance their path to commercialization with CMC analytical solutions powered by deep scientific expertise and a relentless focus on our…” 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 25 of 2,994 assay development companies worldwide

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Assay development companies worldwide at a glance

As of Sep 19, 2026

40.0%Verified-email coverage

45.0Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · San Diego

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,138

11-50

1,041

51-200

452

201-500

172

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for assay development companies are linked below.
What qualifies: Companies worldwide 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.
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, 53,923 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.

Assay development companies by location

15 lists · largest first

Every Assay development companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 worldwide?

RevenueBase identified 2,994 assay development companies worldwide 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?

Beckman Coulter Diagnostics, headquartered in Brea, tops this list with the largest team on record.

Which country has the most assay development companies?

The United States leads with 886 companies, followed by China (348) and India (189). Every assay development companies list by country and city is linked on this page.

Which city has the most assay development companies?

San Diego leads with 61 headquartered companies, followed by Tehran (32) and Cambridge (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 53,923 verified decision-maker contacts tracked across these 2,994 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.