Company lists · Data refreshed November 2026

Top 25 Covid testing centers based in the United States

RevenueBase identified 565 company matches for covid testing centers associated with the United States as of November 2026 and tracks 9,861 professional contacts across them, including 2,501 with verified work emails. Houston is the largest hub.

This list covers company matches for covid testing centers 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
565Companies
9,861Contacts tracked
2,501Verified emails
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The 25 largest covid testing centers based in the United States

Ranked by team size
Top 25 of 565 company matches for covid testing centers 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 matchElmwood Park, NJ, United StatesHQ recorded Nov 6, 20261,001-5,0001,520 contacts →

Exact match

“For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 2026501-1,000172 contacts →

Exact match

“Flow Health is a leading provider of diagnostic information services, offering a wide range of diagnostic testing services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKing Of Prussia, PA, United StatesHQ recorded Nov 6, 2026n/a166 contacts →

Exact match

“Impact Health is a leading provider of rapidly deployed, turn-key, onsite COVID-19 testing programs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGlen Allen, VA, United StatesHQ recorded Nov 6, 2026n/a155 contacts →

Exact match

“GENETWORx Laboratories was formed with the central focus of impacting the lives of our people by empowering their physicians with information.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact 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
13Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 20261,001-5,000120 contacts →

Exact match

“In March 2020, CEO Raymond Embry saw the toll COVID-19 was taking on his community, so he pivoted resources from Embry Women's Health in Mesa and began offering free* PCR COVID-19…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLake Forest, CA, United StatesHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“The COVID-WorkSafe Testing Program provides businesses and organizations with a comprehensive turn-key on-site COVID-19 testing and monitoring program to ensure the safety of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAlpharetta, GA, United StatesHQ recorded Nov 6, 202611-5095 contacts →

Exact match

“Our Mission: To deliver innovative, accurate and clinically relevant diagnostic testing in a timely and cost-effective manner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFeasterville, NY, United StatesHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“Among the many advantages of making SMA Medical Lab your One Source Laboratory, you can count on our Quality Assurance based on State-of-the-Art Equipment and our Commitment…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Genesis Reference Laboratories offers a comprehensive test catalog for a full range of detection capabilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchJupiter, FL, United StatesHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Access Medical Labs is the nation's Premier Full-Service Specialty Lab, striving to provide lab solutions for a healthy and fit lifestyle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHillside, IL, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“VitalCheck Wellness is a healthcare services company that coordinates occupational health, pre-employment screening, and preventive care for employers nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSkokie, IL, United StatesHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“We’re here to improve health through fast and accurate clinical and consumer diagnostics-when and where people need them most.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchEdison, NJ, United StatesHQ recorded Nov 6, 2026201-50057 contacts →

Exact match

“QDx Pathology is a national, independent, and full-service anatomical and molecular pathology laboratory dedicated to providing diagnostic excellence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGreenville, SC, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Luxor Scientific is a specialized clinical and research laboratory located in Greenville, SC with a national service range.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“At Primex Clinical Laboratories, we're dedicated to enhancing health with precision and passion.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSecaucus, NJ, United StatesHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Quest Diagnostics is driven to discover and deliver diagnostic insights and innovations that help to improve human health.”

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

Showing 25 of 565 covid testing centers based in the United States

See the full list, filter by size, metro and specialty, and access 2,501 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Covid testing centers based in the United States at a glance

As of Nov 6, 2026
25.4%Verified-email coverage
17.5Average contacts per company
11-50Median size (employees)
2.7%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
231
11-50
208
51-200
90
201-500
21
501-1,000
6
1,001-5,000
4
10001+
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 565 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 “covid testing centers” 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 2,501 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 “covid testing centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many covid testing centers are there based in the United States?

RevenueBase identified 565 company matches for covid testing centers 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?

Bioreference tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most covid testing centers?

Houston leads with 15 company records, followed by Atlanta (11) and Los Angeles (11).

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 2,501 professional contacts with verified work emails tracked across these 565 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.