Company lists · Data refreshed September 2026
Top 25 Bioequivalence testing companies based in the United States
RevenueBase identified 90 bioequivalence testing companies headquartered in the United States as of September 2026 and tracks 3,765 professional contacts across them, including 2,247 with verified work emails. Castle Rock is the largest hub.
This list covers bioequivalence testing companies 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 bioequivalence testing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 915 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 610 contacts → | ||||
Indirect evidence “LabConnect is a global central laboratory services and clinical trial sample solutions partner, integrating and optimizing sample-related activities across the study lifecycle…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 347 contacts → | ||||
Indirect evidence “KCAS Bio is a top-tier contract research organization (CRO) that has 45 years of experience with both large pharma and biotech sponsors, providing comprehensive bioanalytical drug…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 286 contacts → | ||||
Partial evidence “ARL Bio Pharma is a contract laboratory that provides analytical and microbiological testing for the pharmaceutical industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 177 contacts → | ||||
Indirect evidence “QCL is science driven, quality focused, and responsive.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 154 contacts → | ||||
Indirect evidence “Founded in 2007, Spaulding Clinical is a full-service, state-of-the-art paperless Phase I clinical pharmacology unit.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 120 contacts → | ||||
Partial evidence “Pacific BioLabs is the leading West Coast provider of GMP/GLP laboratory testing services supporting Medical Device, Pharmaceutical, and Biotechnology industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 112 contacts → | ||||
Partial evidence “Eagle Analytical is an FDA- and DEA-registered, A2LA ISO 17025-accredited laboratory that provides analytical chemistry, microbiological testing, consulting, and technical…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 86 contacts → | ||||
Partial evidence “Infinity Laboratories, now part of Eurofins network of laboratories, is a leading contract testing organization with a national network of state-of-the-art facilities, ensuring…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 64 contacts → | ||||
Indirect evidence “Smithers Pharmaceutical Development Services assists in the development of new medicines by providing bioanalytical services for all phases of drug development from discovery…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 45 contacts → | ||||
Indirect evidence “Attentive Science is an FDA inspected, accredited premier global leader, excelling in GLP and nonGLP in-vivo pharmacokinetics, toxicology, and safety pharmacology services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 42 contacts → | ||||
Indirect evidence “Why Proveris Scientific?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 40 contacts → | ||||
Indirect evidence “FreeThink Technologies is a science-based company that conducts experimental work to help clients develop drug products.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 40 contacts → | ||||
Indirect evidence “Accurant Biotech is a GxP-compliant contract research organization (CRO) specializing in bioanalytical support for large molecule and biologic therapeutics.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 30 contacts → | ||||
Indirect evidence “BioChroma Analytical Labs LLC is based out of the DFW metroplex in the heart of Texas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 20 contacts → | ||||
Indirect evidence “ADPEN Laboratories Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Indirect evidence “Del Sol Research Management, LLC is a locally owned dedicated medical research facility focused on conducting clinical trials on behalf of pharmaceutical companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 contacts → | ||||
Indirect evidence “Ceutical Laboratories provides services to the pharmaceutical, medical device, dietary supplement, veterinary, cosmetic, and food industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Indirect evidence “Drawing upon 40+ years of experience, Scientech Laboratories takes pride in leading the way in the FDA cGMP-compliant analytical laboratory domain.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Indirect evidence “EZ Labs LLC is a privately owned cGMP compliant analytical laboratory in the heart of San Diego’s thriving biotech community.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Partial evidence “MS Bioanalytical is a FDA registered independent testing laboratory providing analytical testing services to nutrition supplement, cosmetics, food and pharmaceutical industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Partial evidence “Product Investigations is an innovative, independent third-party clinical research laboratory specializing in human safety & skin wellness testing, product efficacy, and claims…” 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 | 10 contacts → | ||||
Partial evidence “Alliance Technologies is a DEA licensed, FDA registered chemical testing laboratory providing reliable chemical analysis, contract analytical research, product and composition…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 contacts → | ||||
Partial evidence “CIAL specializes in providing highly affordable, personalized, accurate, and rapid pharmaceutical testing.” 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: bioequivalence testing 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 bioequivalence testing companies.
- Partial evidence
- Its own public description names part of bioequivalence testing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name bioequivalence testing 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 90 bioequivalence testing companies based in the United States
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Bioequivalence testing companies 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 90 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 bioequivalence testing 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 States whose own description of what they do matches “bioequivalence testing 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 bioequivalence testing 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 bioequivalence testing companies, 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, 2,247 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 bioequivalence testing 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 bioequivalence testing companies are there based in the United States?
RevenueBase identified 90 bioequivalence testing companies 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?
Bioagilytix, headquartered in Durham, tops this list with the largest team on record.
Which city has the most bioequivalence testing companies?
Castle Rock leads with 3 headquartered companies, followed by Durham (3) and Dallas (2).
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 2,247 verified decision-maker contacts tracked across these 90 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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