Company lists · Data refreshed September 2026
Top 25 Enzyme assay providers based in the United States
RevenueBase identified 100 enzyme assay providers headquartered in the United States as of September 2026 and tracks 2,965 professional contacts across them, including 659 with verified work emails. San Diego is the largest hub.
This list covers enzyme assay providers headquartered in the United States, 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.
The 25 largest enzyme assay providers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 954 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 287 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 116 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 115 contacts → | ||||
Indirect evidence “BPS Bioscience advances new scientific discoveries that lead to therapies by creating innovative solutions for research.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 100 contacts → | ||||
Indirect evidence “Based in Massachusetts, ABclonal is a dynamic and growing provider of biology research reagents and services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 96 contacts → | ||||
Partial evidence “AnaSpec, a subsidiary of Kaneka Eurogentec, is a globally recognized biotechnology company that manufactures and sells custom and catalog Peptides, Fluorogenic and FRET Assay…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 95 contacts → | ||||
Partial evidence “Diazyme uses its proprietary enzyme technologies to develop diagnostic reagents which can be used on most automated chemistry analyzers in user-friendly formats.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 71 contacts → | ||||
Indirect evidence “Headquartered in Seattle, Washington, US BioTek Laboratories, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 42 contacts → | ||||
Indirect evidence “G-Biosciences is an ISO 9001:2015 and ISO 13485:2016 certified, cGMP, FDA.QSR (21 CFR 820) compliant life sciences laboratory and manufacturing facility with experience in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 contacts → | ||||
Indirect evidence “Calbiotech is a worldwide leader in immunoassay development and manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “Molecular Instruments (MI) designs and synthesizes kits for multiplexed quantitative bioimaging in academic research, drug development, and clinical pathology and diagnostics.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 36 contacts → | ||||
Indirect evidence “Worthington is a privately owned, ISO9001 Certified.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 33 contacts → | ||||
Partial evidence “Ansh Labs is a leading developer and manufacturer of immunodiagnostic assays and reagents used to advance target discovery, therapeutic development, biomedical research, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 29 contacts → | ||||
Indirect evidence “Alphazyme was founded in 2018 by Christopher Benoit, Stephana Petrino and Chad Decker.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 28 contacts → | ||||
Indirect evidence “AAT Bioquest®, Inc.(formerly ABD Bioquest, Inc.) develops, manufactures and markets bioanalytical research reagents and kits to life sciences research, diagnostic R&D and drug…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 contacts → | ||||
Partial evidence “Arbor Assays is the first employee-owned life sciences company and is dedicated to advancing scientific discovery by providing innovative and reliable assay solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 20 contacts → | ||||
Strong evidence “Why not use the best substrate for your assays, designed for your enzyme?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 19 contacts → | ||||
Indirect evidence “This company no longer exists.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 17 contacts → | ||||
Indirect evidence “Founded in 1985 in Milwaukee, Wisconsin, Molecular Biology Resources, Inc.(MBR) has earned the reputation as a world leader in biochemical manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Indirect evidence “BellBrook Labs is dedicated to providing the pharmaceutical industry with enabling screening tools to accelerate the discovery of more effective therapies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Partial evidence “BioAssay Systems develops and markets innovative and high-throughput assay solutions to satisfy the ever increasing demands of the life sciences industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Partial evidence “Exceptionally Affordable Enzymes At Fermatix, we’re on a mission to fuel scientific exploration by providing high-quality enzymes and other reagents at the lowest possible prices.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 11 contacts → | ||||
Indirect evidence “Immunogenomics offers the latest innovative technologies supporting exploratory testing and biomarker development or pharmaceutical drug development to clinical trials.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 contacts → | ||||
Indirect evidence “AminoAcids.com is the leading service lab in Amino Acid, B Vitamin, and Lipid/Fatty Acid analysis.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: enzyme assay providers. 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 enzyme assay providers.
- Partial evidence
- Its own public description names part of enzyme assay providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name enzyme assay providers. 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 100 enzyme assay providers based in the United States
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Enzyme assay providers based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 100 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 enzyme assay providers, 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 States whose own description of what they do matches “enzyme assay providers”. 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 enzyme assay providers), 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 enzyme assay providers, and records with no verified work email. Companies headquartered outside United States 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, 659 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 enzyme assay providers, 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 enzyme assay providers are there based in the United States?
RevenueBase identified 100 enzyme assay providers headquartered in the United States 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?
Meso Scale Diagnostics, LLC, headquartered in Rockville, tops this list with the largest team on record.
Which city has the most enzyme assay providers?
San Diego leads with 7 headquartered companies, followed by Madison (3) and Seattle (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 659 verified decision-maker contacts tracked across these 100 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.
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