Company lists · Data refreshed September 2026

Top 25 Drug metabolism research companies based in the United States

Name: Drug metabolism research companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 266 companies tracked

RevenueBase identified 266 drug metabolism research companies headquartered in the United States as of September 2026 and tracks 13,314 professional contacts across them, including 4,269 with verified work emails. Durham is the largest hub.

This list covers drug metabolism research 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.

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

266Companies

13,314Contacts tracked

4,269Verified emails

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The 25 largest drug metabolism research companies based in the United States

Ranked by team size

Top 25 of 266 drug metabolism research companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to drug metabolism research 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	Covance	Partial evidence	Princeton, NJ, United StatesHQ checked Sep 19, 2026	10001+	5,220 contacts →
	Partial evidence “As the drug development business of Laboratory Corporation of America Holdings (Labcorp) and the world’s most comprehensive drug development #CRO service company, we have helped…” Source: RevenueBase Database · checked Sep 19, 2026
2	Celerion	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,080 contacts →
	Partial evidence “Celerion, a leader in early clinical research, delivers Applied Translational Medicine.” Source: RevenueBase Database · checked Sep 19, 2026
3	Bioagilytix	Strong evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	915 contacts →
	Strong 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
4	Labconnect	Indirect evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	501-1,000	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, 2026
5	Kcas BIO	Strong evidence	Olathe, KS, United StatesHQ checked Sep 19, 2026	201-500	347 contacts →
	Strong 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, 2026
6	Precision Diagnostics	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	501-1,000	235 contacts →
	Indirect evidence “Precision Diagnostics is the only U.S.” Source: RevenueBase Database · checked Sep 19, 2026
7	Metabolon, INC	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 19, 2026	201-500	200 contacts →
	Indirect evidence “Every biological process leaves a biochemical signature.” Source: RevenueBase Database · checked Sep 19, 2026
8	Prosciento, INC	Strong evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	201-500	181 contacts →
	Strong evidence “ProSciento is the leading clinical research organization focused on the continuum of metabolic diseases.” Source: RevenueBase Database · checked Sep 19, 2026
9	Quality Chemical Laboratories	Indirect evidence	Wilmington, NC, United StatesHQ checked Sep 19, 2026	201-500	177 contacts →
	Indirect evidence “QCL is science driven, quality focused, and responsive.” Source: RevenueBase Database · checked Sep 19, 2026
10	Spaulding Clinical Research, LLC	Indirect evidence	West Bend, WI, United StatesHQ checked Sep 19, 2026	51-200	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, 2026
11	EAGLE	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	112 contacts →
	Indirect 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, 2026
12	Radeas	Indirect evidence	Wake Forest, NC, United StatesHQ checked Sep 19, 2026	51-200	81 contacts →
	Indirect evidence “We bring radical ideas in analytical testing to the clinical laboratory.” Source: RevenueBase Database · checked Sep 19, 2026
13	Cambium Analytica	Indirect evidence	Traverse City, MI, United StatesHQ checked Sep 19, 2026	51-200	75 contacts →
	Indirect evidence “Analytical testing & product development company specializing in natural products including natural foods, dietary supplements, botanical products, and natural pharmaceuticals.” Source: RevenueBase Database · checked Sep 19, 2026
14	Alturas Analytics, INC	Indirect evidence	Moscow, ID, United StatesHQ checked Sep 19, 2026	51-200	68 contacts →
	Indirect evidence “At Alturas Analytics, we deliver results on time with the highest level of integrity.” Source: RevenueBase Database · checked Sep 19, 2026
15	Smithers	Partial evidence	Gaithersburg, MD, United StatesHQ checked Sep 19, 2026	51-200	64 contacts →
	Partial 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, 2026
16	Pion INC	Strong evidence	Billerica, MA, United StatesHQ checked Sep 19, 2026	51-200	64 contacts →
	Strong evidence “Pion supports drug development programs with in vitro scientific instruments, contract research, and equipment maintenance.” Source: RevenueBase Database · checked Sep 19, 2026
17	Hyperion Biotechnology, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	51-200	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
18	Attentive Science	Indirect evidence	Stilwell, KS, United StatesHQ checked Sep 19, 2026	51-200	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, 2026
19	National Labs INC	Indirect evidence	Hayward, CA, United StatesHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “Welcome to National Labs!” Source: RevenueBase Database · checked Sep 19, 2026
20	Ichor Life Sciences, INC	Partial evidence	Lafayette, NY, United StatesHQ checked Sep 19, 2026	11-50	43 contacts →
	Partial evidence “Ichor Life Sciences is a longevity biotechnology company and end-to-end contract research organization.” Source: RevenueBase Database · checked Sep 19, 2026
21	MD Labs	Indirect evidence	Reno, NV, United StatesHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “Our Co-Founders, Denis Grizelj and Matthew Rutledge founded MD Labs in 2011 with the goal to specialize in prescription monitoring toxicology and serve physicians across the…” Source: RevenueBase Database · checked Sep 19, 2026
22	Accurant Biotech, INC	Partial evidence	Princeton, NJ, United StatesHQ checked Sep 19, 2026	51-200	40 contacts →
	Partial 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, 2026
23	Product Safety Labs	Partial evidence	Dayton, NJ, United StatesHQ checked Sep 19, 2026	51-200	40 contacts →
	Partial evidence “Since 1972, Product Safety Labs (PSL) has provided research and testing services to the agrochemical, chemical, pharmaceutical, dietary supplement/functional foods, personal care…” Source: RevenueBase Database · checked Sep 19, 2026
24	Covance Clinical And Periapproval Services Limited	Indirect evidence	Burlington, NC, United StatesHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “COVANCE CLINICAL AND PERIAPPROVAL SERVICES LIMITED is a company based out of 531 S Spring St, Burlington, NC, United States.” Source: RevenueBase Database · checked Sep 19, 2026
25	Medcomp Sciences	Partial evidence	Zachary, LA, United StatesHQ checked Sep 19, 2026	201-500	34 contacts →
	Partial evidence “MedComp Sciences offers clinical urine toxicology testing that can provide an effective measuring tool to determine the presence and levels of illicit or prescription drugs in a…” 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: drug metabolism research 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 drug metabolism research companies.
Partial evidence: Its own public description names part of drug metabolism research companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drug metabolism research 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 266 drug metabolism research companies based in the United States

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Drug metabolism research companies based in the United States at a glance

As of Sep 19, 2026

32.1%Verified-email coverage

50.1Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · Durham

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

110

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 States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 266 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 drug metabolism research 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 “drug metabolism research 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 drug metabolism research 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 drug metabolism research 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, 4,269 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 drug metabolism research 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 drug metabolism research companies are there based in the United States?

RevenueBase identified 266 drug metabolism research 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?

Covance, headquartered in Princeton, tops this list with the largest team on record.

Which city has the most drug metabolism research companies?

Durham leads with 9 headquartered companies, followed by San Diego (7) and Boston (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 4,269 verified decision-maker contacts tracked across these 266 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.