Company lists · Data refreshed September 2026

Top 25 Absorption distribution metabolism excretion testing companies based in the United States

Name: Absorption distribution metabolism excretion testing 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 30, 2026 340 companies tracked

RevenueBase identified 340 absorption distribution metabolism excretion testing companies headquartered in the United States as of September 2026 and tracks 57,983 professional contacts across them, including 22,061 with verified work emails. San Diego is the largest hub.

This list covers absorption distribution metabolism excretion 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 30, 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 30, 2026 86% judged on-target in blind review

340Companies

57,983Contacts tracked

22,061Verified emails

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The 25 largest absorption distribution metabolism excretion testing companies based in the United States

Ranked by team size

Top 25 of 340 absorption distribution metabolism excretion testing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to absorption distribution metabolism excretion testing 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	Labcorp	Indirect evidence	Burlington, NC, United StatesHQ checked Sep 30, 2026	10001+	38,427 contacts →
	Indirect evidence “Clear and confident health care decisions begin with questions.” Source: RevenueBase Database · checked Sep 30, 2026
2	Eurofins Lancaster Laboratories	Indirect evidence	Lancaster, PA, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,638 contacts →
	Indirect evidence “Eurofins Lancaster Laboratories is one of the largest commercial contract laboratories in the world providing comprehensive laboratory services in the pharmaceutical…” Source: RevenueBase Database · checked Sep 30, 2026
3	Celerion	Indirect evidence	Lincoln, NE, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,080 contacts →
	Indirect evidence “Celerion, a leader in early clinical research, delivers Applied Translational Medicine.” Source: RevenueBase Database · checked Sep 30, 2026
4	Bioagilytix	Indirect evidence	Durham, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	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 30, 2026
5	Aegis Sciences Corporation	Partial evidence	Nashville, TN, United StatesHQ checked Sep 30, 2026	501-1,000	690 contacts →
	Partial evidence “Founded in 1990, Aegis Sciences Corporation is a forensic toxicology and healthcare laboratory that provides science-driven drug testing and consulting services based in…” Source: RevenueBase Database · checked Sep 30, 2026
6	Millennium Health	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	501-1,000	665 contacts →
	Indirect evidence “Millennium Health is an accredited specialty laboratory with over 15 years of experience delivering timely, accurate, clinically-actionable information through our nationwide…” Source: RevenueBase Database · checked Sep 30, 2026
7	Labconnect	Indirect evidence	Durham, NC, United StatesHQ checked Sep 30, 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 30, 2026
8	ACM Global Laboratories	Partial evidence	Rochester, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	446 contacts →
	Partial evidence “ACM Global Laboratories, an affiliate of Rochester Regional Health in Rochester, New York, is a recognized leader global clinical trial testing services.” Source: RevenueBase Database · checked Sep 30, 2026
9	Kcas BIO	Indirect evidence	Olathe, KS, United StatesHQ checked Sep 30, 2026	201-500	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 30, 2026
10	ARL BIO Pharma	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 30, 2026	201-500	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 30, 2026
11	BA Sciences	Partial evidence	Salem, NH, United StatesHQ checked Sep 30, 2026	201-500	257 contacts →
	Partial evidence “Since its founding in 1987, BA Sciences has been a trusted provider of high-quality analytical testing services to life science companies worldwide.” Source: RevenueBase Database · checked Sep 30, 2026
12	Precision Diagnostics	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	501-1,000	235 contacts →
	Indirect evidence “Precision Diagnostics is the only U.S.” Source: RevenueBase Database · checked Sep 30, 2026
13	Medtox Laboratories	Partial evidence	New Brighton, MN, United StatesHQ checked Sep 30, 2026	501-1,000	215 contacts →
	Partial evidence “MEDTOX Laboratories contains a full-service clinical laboratory as well as a SAMHSA-certified drug testing laboratory.” Source: RevenueBase Database · checked Sep 30, 2026
14	Quality Chemical Laboratories	Indirect evidence	Wilmington, NC, United StatesHQ checked Sep 30, 2026	201-500	177 contacts →
	Indirect evidence “QCL is science driven, quality focused, and responsive.” Source: RevenueBase Database · checked Sep 30, 2026
15	Q Laboratories	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 30, 2026	51-200	162 contacts →
	Indirect evidence “Q Laboratories is an FDA/MoCRA registered (#1527260), cGMP/GLP compliant, and ISO/IEC 17025 accredited contract laboratory supporting global brands in delivering safe…” Source: RevenueBase Database · checked Sep 30, 2026
16	Spaulding Clinical Research, LLC	Indirect evidence	West Bend, WI, United StatesHQ checked Sep 30, 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 30, 2026
17	Phamatech, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	51-200	147 contacts →
	Indirect evidence “Phamatech was founded in 1991 by a small group of dedicated scientists and business executives.” Source: RevenueBase Database · checked Sep 30, 2026
18	Immunologix Laboratories	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 30, 2026	51-200	128 contacts →
	Indirect evidence “Immunologix Laboratories is a unique scientific partner, offering GLP and GCP compliant laboratory capabilities focused on ligand binding-based bioanalysis coupled with expert…” Source: RevenueBase Database · checked Sep 30, 2026
19	Pacific Biolabs, INC	Partial evidence	Hercules, CA, United StatesHQ checked Sep 30, 2026	51-200	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 30, 2026
20	EAGLE	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	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 30, 2026
21	Spectrix Analytical Services, LLC	Indirect evidence	North Haven, CT, United StatesHQ checked Sep 30, 2026	51-200	102 contacts →
	Indirect evidence “Spectrix is a scientific services company that provides on-site services tailored to its clients' needs.” Source: RevenueBase Database · checked Sep 30, 2026
22	Nitto Avecia Pharma Services	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 30, 2026	51-200	100 contacts →
	Indirect evidence “Nitto Avecia Pharma Services is your single source for analytical services for the pharma, biotech, and medical device industries.” Source: RevenueBase Database · checked Sep 30, 2026
23	Navigate Biopharma Services, INC	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 30, 2026	51-200	98 contacts →
	Indirect evidence “Navigate BioPharma is a specialty laboratory offering high quality, innovative and differentiated precision medicine solutions for drug development and diagnostic applications.” Source: RevenueBase Database · checked Sep 30, 2026
24	Genetic Technological Innovations	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 30, 2026	51-200	87 contacts →
	Partial evidence “State-of-the-art diagnostic laboratory providing comprehensive pathology, DNA Sequencing, pharmacogenetic and toxicology testing solutions.” Source: RevenueBase Database · checked Sep 30, 2026
25	IHMA	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 30, 2026	51-200	86 contacts →
	Indirect evidence “IHMA provides a full suite of technical capabilities and domain expertise in all phases of antimicrobial drug development: drug discovery, clinical development, regulatory…” Source: RevenueBase Database · checked Sep 30, 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: absorption distribution metabolism excretion 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 absorption distribution metabolism excretion testing companies.
Partial evidence: Its own public description names part of absorption distribution metabolism excretion testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name absorption distribution metabolism excretion 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 340 absorption distribution metabolism excretion testing companies based in the United States

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Absorption distribution metabolism excretion testing companies based in the United States at a glance

As of Sep 30, 2026

38.0%Verified-email coverage

170.5Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · San Diego

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

129

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 340 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 absorption distribution metabolism excretion 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 “absorption distribution metabolism excretion 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 absorption distribution metabolism excretion 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 absorption distribution metabolism excretion 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, 22,061 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 30, 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 absorption distribution metabolism excretion 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 absorption distribution metabolism excretion testing companies are there based in the United States?

RevenueBase identified 340 absorption distribution metabolism excretion 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?

Labcorp, headquartered in Burlington, tops this list with the largest team on record.

Which city has the most absorption distribution metabolism excretion testing companies?

San Diego leads with 10 headquartered companies, followed by Irvine (6) and Tampa (6).

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 22,061 verified decision-maker contacts tracked across these 340 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 30, 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.