Company lists · Data refreshed October 2026

Top 25 Immunodiagnostic tests & test kit assembly suppliers based in the United States

RevenueBase identified 289 company matches for immunodiagnostic tests & test kit assembly suppliers associated with the United States as of October 2026 and tracks 28,034 professional contacts across them, including 9,991 with verified work emails. San Diego is the largest hub.

This list covers company matches for immunodiagnostic tests & test kit assembly suppliers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 26, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 26, 2026 How this list was built
289Companies
28,034Contacts tracked
9,991Verified emails
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The 25 largest immunodiagnostic tests & test kit assembly suppliers based in the United States

Ranked by team size
Top 25 of 289 company matches for immunodiagnostic tests & test kit assembly suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 26, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBrea, CA, United StatesHQ recorded Oct 26, 202610001+10,426 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
2Exact matchSunnyvale, CA, United StatesHQ recorded Oct 26, 20265,001-10,0004,514 contacts →

Exact match

“Cepheid is dedicated to improving healthcare by pioneering molecular diagnostics that combine speed, accuracy, and flexibility.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
3Exact matchBedford, MA, United StatesHQ recorded Oct 26, 20261,001-5,0001,537 contacts →

Exact match

“Werfen is a worldwide leader in specialized diagnostics, focused on Hemostasis, Acute Care, Autoimmunity and OEM products and services.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
4Exact matchLincolnshire, IL, United StatesHQ recorded Oct 26, 20261,001-5,0001,352 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
5Exact matchWaltham, MA, United StatesHQ recorded Oct 26, 20261,001-5,0001,162 contacts →

Exact match

“Nova Biomedical is entering a new chapter.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
6Exact matchCincinnati, OH, United StatesHQ recorded Oct 26, 2026501-1,000684 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
7Exact matchBethlehem, PA, United StatesHQ recorded Oct 26, 2026501-1,000456 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
8Exact matchBurlington, MA, United StatesHQ recorded Oct 26, 2026201-500447 contacts →

Exact match

“Headquartered in Burlington, MA, for 40 years SEKISUI Diagnostics has been committed to helping improve the lives of patients by providing innovative medical diagnostics to…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
9Exact matchLa Vista, NE, United StatesHQ recorded Oct 26, 2026201-500327 contacts →

Exact match

“Established in 1971, Streck provides solutions that ensure every result counts by empowering clinical and research laboratories to reliably deliver accurate results, advance…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
10Exact matchAnn Arbor, MI, United StatesHQ recorded Oct 26, 2026201-500300 contacts →

Exact match

“Helping Make Research Possible We are helping make research possible by supplying scientists worldwide with the assay kits, antibodies, proteins, and biochemicals to advance their…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
11Exact matchSantee, CA, United StatesHQ recorded Oct 26, 2026501-1,000262 contacts →

Exact match

“In vitro diagnostic company, specializing in the production of antibodies, controls, blockers including HBR- Clean Rooms - Filling - Finishing - Packaging - Sub-Assembly -…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
12Exact matchSanta Maria, CA, United StatesHQ recorded Oct 26, 2026201-500259 contacts →

Exact match

“Hardy Diagnostics is a 100% employee-owned company that is licensed by the FDA as a medical device manufacturer, and its quality management system is ISO 13485 certified.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
13Exact matchLenexa, KS, United StatesHQ recorded Oct 26, 2026201-500249 contacts →

Exact match

“It’s so much more than a specimen.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
14Exact matchGaithersburg, MD, United StatesHQ recorded Oct 26, 202651-200161 contacts →

Exact match

“LGC Clinical Diagnostics’ KPL portfolio includes a range of over 800 reagents and kits for immunoassays, immunohistochemistry, infectivity assays and flow cytometry.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
15Exact matchBlacksburg, VA, United StatesHQ recorded Oct 26, 202651-200153 contacts →

Exact match

“In 2022, TECHLAB was acquired by SSI Diagnostica Group.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
16Exact matchSan Diego, CA, United StatesHQ recorded Oct 26, 202651-200153 contacts →

Exact match

“Phamatech was founded in 1991 by a small group of dedicated scientists and business executives.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
17Exact matchSeattle, WA, United StatesHQ recorded Oct 26, 202651-200150 contacts →

Exact match

“InBios is a leading biotechnology company based in Seattle, Washington (USA).”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
18Exact matchFremont, CA, United StatesHQ recorded Oct 26, 202651-200127 contacts →

Exact match

“Eurofins DiscoverX, the products company of Eurofins Discovery, is committed to enabling and accelerating multi-modality drug discovery and development from discovery to QC lot…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
19Exact matchClaremont, CA, United StatesHQ recorded Oct 26, 2026501-1,000123 contacts →

Exact match

“Therapak is a global supplier of pre-packaged convenience kits and procedure packs for the clinical trial, pharmaceutical, diagnostics and clinical laboratory markets.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
20Exact matchBeaumont, TX, United StatesHQ recorded Oct 26, 2026201-500119 contacts →

Exact match

“Helena Laboratories is a clinical laboratory instrument and reagent manufacturer.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
21Exact matchPipersville, PA, United StatesHQ recorded Oct 26, 202651-200104 contacts →

Exact match

“Discover the World of LAMPIRE Biological Laboratories!”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
22Exact matchGarden Grove, CA, United StatesHQ recorded Oct 26, 202651-200102 contacts →

Exact match

“Founded in 1981, HYCOR Biomedical is a global manufacturer and marketer of in vitro diagnostic products.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
23Exact matchPoway, CA, United StatesHQ recorded Oct 26, 202651-20098 contacts →

Exact match

“Diazyme uses its proprietary enzyme technologies to develop diagnostic reagents which can be used on most automated chemistry analyzers in user-friendly formats.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
24Exact matchWoburn, MA, United StatesHQ recorded Oct 26, 2026501-1,00096 contacts →

Exact match

“Based in Massachusetts, ABclonal is a dynamic and growing provider of biology research reagents and services.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
25Exact matchAlpharetta, GA, United StatesHQ recorded Oct 26, 202611-5094 contacts →

Exact match

“Our Mission: To deliver innovative, accurate and clinically relevant diagnostic testing in a timely and cost-effective manner.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase

Showing 25 of 289 immunodiagnostic tests & test kit assembly suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 9,991 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Immunodiagnostic tests & test kit assembly suppliers based in the United States at a glance

As of Oct 26, 2026
35.6%Verified-email coverage
97.0Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · San Diego
Oct 26, 2026Page data refreshed

Companies by employee count

1-10
79
11-50
97
51-200
69
201-500
21
501-1,000
14
1,001-5,000
7
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 289 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “immunodiagnostic tests & test kit assembly suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 9,991 professional contacts with verified work emails across the full matched dataset. 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 October 26, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “immunodiagnostic tests & test kit assembly suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many immunodiagnostic tests & test kit assembly suppliers are there based in the United States?

RevenueBase identified 289 company matches for immunodiagnostic tests & test kit assembly suppliers associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Beckman Coulter Diagnostics tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most immunodiagnostic tests & test kit assembly suppliers?

San Diego leads with 11 company records, followed by Portland (6) and Rockville (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,991 professional contacts with verified work emails tracked across these 289 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 26, 2026.

Ready to reach these companies? Verified emails and direct dials for all 289 immunodiagnostic tests & test kit assembly suppliers based in the United States. Start with a free account, no credit card.

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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 SmartSearch, 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.