Company lists · Data refreshed November 2026

Top 25 Substance abuse testing labs based in the United States

RevenueBase identified 635 company matches for substance abuse testing labs associated with the United States as of November 2026 and tracks 16,111 professional contacts across them, including 5,016 with verified work emails. Charlotte is the largest hub.

This list covers company matches for substance abuse testing labs 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 November 6, 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 Nov 6, 2026 How this list was built
635Companies
16,111Contacts tracked
5,016Verified emails
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The 25 largest substance abuse testing labs based in the United States

Ranked by team size
Top 25 of 635 company matches for substance abuse testing labs based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchPhoenix, AZ, United StatesHQ recorded Nov 6, 20261,001-5,0001,295 contacts →

Exact match

“Sonora Quest Laboratories, a subsidiary of Laboratory Sciences of Arizona, is an Arizona-based joint venture between Banner Health and Quest Diagnostics (NYSE: DGX) that makes up…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,000910 contacts →

Exact match

“DISA has been providing full-service employee screening solutions since 1987.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNashville, TN, United StatesHQ recorded Nov 6, 2026501-1,000738 contacts →

Exact match

“Founded in 1990, Aegis Sciences Corporation is a forensic toxicology and healthcare laboratory that provides science-driven drug testing and consulting services based in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGreensboro, GA, United StatesHQ recorded Nov 6, 20261,001-5,000692 contacts →

Exact match

“Solstas Lab Partners has become one of the nation’s fastest-growing and largest full-service laboratories because we understand that our business is more than just test results.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026501-1,000626 contacts →

Exact match

“Millennium Health is an accredited specialty laboratory with over a decade of experience delivering timely, accurate, clinically-actionable information through our nationwide…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLenexa, KS, United StatesHQ recorded Nov 6, 2026501-1,000503 contacts →

Exact match

“CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSpokane, WA, United StatesHQ recorded Nov 6, 20261,001-5,000446 contacts →

Exact match

“Pathology Associates Medical Laboratories (PAML) is a full-service medical reference laboratory located in Spokane, WA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHorsham, PA, United StatesHQ recorded Nov 6, 2026201-500427 contacts →

Exact match

“NMS Labs has been setting the standard for excellence in clinical toxicology and forensic testing-responding to the needs of healthcare providers, medical researchers, coroners…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAiea, HI, United StatesHQ recorded Nov 6, 20261,001-5,000398 contacts →

Exact match

“DLS is proud to be Hawaii’s largest locally-owned clinical and anatomic pathology testing laboratory with a team of over dedicated professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHicksville, NY, United StatesHQ recorded Nov 6, 2026501-1,000382 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLinden, NJ, United StatesHQ recorded Nov 6, 2026501-1,000382 contacts →

Exact match

“Accu Reference Medical Lab is a state-of-the-art medical testing laboratory service that provides a complete range of tests for diagnosis, screening or evaluation of diseases and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchGreenville, SC, United StatesHQ recorded Nov 6, 2026201-500353 contacts →

Exact match

“ARCpoint Labs is a trusted industry leader serving our communities with drug, alcohol, DNA, and clinical testing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNorth Kingstown, RI, United StatesHQ recorded Nov 6, 2026201-500331 contacts →

Exact match

“For over 25 years, Dominion Diagnostics has been advancing patient care through trusted diagnostics as a premier urine drug testing and toxicology laboratory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchToledo, OH, United StatesHQ recorded Nov 6, 2026201-500320 contacts →

Exact match

“Established in Toledo, Ohio in 1946, Pathology Laboratories, Inc.(PathLabs) fostered a reputation among the area’s private medical practitioners as a provider of prompt, reliable…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMemphis, TN, United StatesHQ recorded Nov 6, 20261,001-5,000292 contacts →

Exact match

“AEL provides clinical information to aid customers throughout the Mid-South in the diagnosis, prevention and treatment of disease.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026501-1,000259 contacts →

Exact match

“Precision Diagnostics is the only U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLenexa, KS, United StatesHQ recorded Nov 6, 2026501-1,000236 contacts →

Exact match

“Quest Diagnostics Workforce Health Solutions drug offers reliable workforce drug testing, an extensive collection site network, and personal service and support.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRichmond, VA, United StatesHQ recorded Nov 6, 2026201-500230 contacts →

Exact match

“At Averhealth, our mission is to reclaim lives, unite families, and strengthen communities by creating and providing the smartest, most innovative solutions for substance use…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNew Brighton, MN, United StatesHQ recorded Nov 6, 2026501-1,000224 contacts →

Exact match

“MEDTOX Laboratories contains a full-service clinical laboratory as well as a SAMHSA-certified drug testing laboratory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202651-200160 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHorsham, PA, United StatesHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Drugscan is a national toxicology and infectious disease testing laboratory that partners with organizations and providers to provide the critical testing they need for healthier…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBrooklyn, NY, United StatesHQ recorded Nov 6, 2026201-500140 contacts →

Exact match

“Empire City Laboratories is a full-service clinical laboratory that is dedicated to provide highly-efficient results to both doctors and patients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNewport, KY, United StatesHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“Our purpose is to help more people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDallas, CA, United StatesHQ recorded Nov 6, 2026201-500118 contacts →

Exact match

“Psychemedics develops and delivers the world’s leading hair drug test for detecting drugs of abuse.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMobile, AL, United StatesHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“Synergy Laboratories is a state-of-the-art CLIA, COLA licensed and CAP certified laboratory specializing in Clinical, Infectious Disease utilizing advanced microbiology, PCR and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 635 substance abuse testing labs based in the United States

See the full list, filter by size, metro and specialty, and access 5,016 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Substance abuse testing labs based in the United States at a glance

As of Nov 6, 2026
31.1%Verified-email coverage
25.4Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Charlotte
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
302
11-50
184
51-200
104
201-500
19
501-1,000
9
1,001-5,000
10
5,001-10,000
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 635 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 “substance abuse testing labs” 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 5,016 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 November 6, 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 “substance abuse testing labs”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many substance abuse testing labs are there based in the United States?

RevenueBase identified 635 company matches for substance abuse testing labs associated with the United States as of November 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?

Sonora Quest Laboratories Laboratory Sciences Of Arizona tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most substance abuse testing labs?

Charlotte leads with 10 company records, followed by Greenville (9) and Irvine (9).

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 5,016 professional contacts with verified work emails tracked across these 635 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 November 6, 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 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.