Company lists · Data refreshed November 2026
Top 25 Occupational testing companies based in the United States
RevenueBase identified 897 company matches for occupational testing companies associated with the United States as of November 2026 and tracks 26,454 professional contacts across them, including 5,289 with verified work emails. Atlanta is the largest hub.
This list covers company matches for occupational testing companies 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.
The 25 largest occupational testing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,526 contacts → | ||||
Exact match “WHO WE ARE: Concentra is the leader in occupational health with 40+ years of improving the health of America's workforce, one patient at a time.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,729 contacts → | ||||
Exact match “Leidos QTC Health Services collaborates closely with government and non-government customers to address current and future program needs within the health services domain.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,520 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 | |||||
| 4 | 1,415 contacts → | ||||
Exact match “ExamOne has provided a robust portfolio of laboratory, paramedical and data solutions since 1972, giving it a great deal of understanding about the needs of life insurance and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 910 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 | |||||
| 6 | 738 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 | |||||
| 7 | 503 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 | |||||
| 8 | 483 contacts → | ||||
Exact match “WorkCare, Inc, a U.S-based occupational health, wellness and absence management company, is part of the APM Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 448 contacts → | ||||
Exact match “For over 30 years, The IMA Group has been dedicated to enhancing the livelihood and productivity of individuals and organizations navigating challenging periods of health, work…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 353 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 | |||||
| 11 | 351 contacts → | ||||
Exact match “Physicians Immediate Care, also known as Physicians Urgent Care, is a Midwest leader in urgent care and occupational health services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 331 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 | |||||
| 13 | 317 contacts → | ||||
Exact match “Examinetics is the leading provider of occupational health solutions, offering services across the entire employee lifecycle with several delivery methods.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 270 contacts → | ||||
Exact match “Universal Background provides industry leading people insights to safety sensitive organizations in a simplified experience through our best-in-class background screening, drug…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 236 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 | |||||
| 16 | 224 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 | |||||
| 17 | 196 contacts → | ||||
Exact match “Since 1984, Mobile Health has been a trusted employee screening and occupational health provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 183 contacts → | ||||
Exact match “Better By Every Measure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 145 contacts → | ||||
Exact match “PRIME Occupational Medicine is committed to providing high-quality occupational health services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 144 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 | |||||
| 21 | 126 contacts → | ||||
Exact match “Founded in 1982, MBI operates 26 clinics across Arizona, Colorado and Nevada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 117 contacts → | ||||
Exact match “Discovery Health Services offers a new approach to workplace wellness that helps both businesses- and their employees - thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 104 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 | |||||
| 24 | 102 contacts → | ||||
Exact match “For 45+ years, Tang+Company has been a trusted single source of occupational health services, workforce training, and drug, alcohol, & background check program administration.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 93 contacts → | ||||
Exact match “ARC Physical Therapy+ started as a physical and occupational therapy company and has grown into the region’s foremost wellness, injury prevention, rehabilitation and sports…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “occupational testing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 897 occupational testing companies based in the United States
See the full list, filter by size, metro and specialty, and access 5,289 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Occupational testing companies based in the United States at a glance
As of Nov 6, 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 897 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 “occupational testing companies” 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 5,289 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 “occupational testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many occupational testing companies are there based in the United States?
RevenueBase identified 897 company matches for occupational testing companies 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?
Concentra tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most occupational testing companies?
Atlanta leads with 17 company records, followed by Houston (16) and Charlotte (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 5,289 professional contacts with verified work emails tracked across these 897 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.
Ready to reach these companies? Verified emails and direct dials for all 897 occupational testing companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Occupational testing companies by geography
- Occupational testing companies based in Sao Paulo, Brazil
- Occupational testing companies based in Argentina
- Occupational testing companies based in Australia
- Occupational testing companies based in Brazil
- Occupational testing companies based in Canada
- Occupational testing companies based in Chile
- Occupational testing companies based in Colombia
- Occupational testing companies based in Germany
- Occupational testing companies based in India
- Occupational testing companies based in Italy
- Occupational testing companies based in Mexico
- Occupational testing companies based in the Netherlands
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Occupational testing companies based in Sao Paulo, Brazil
- Occupational testing companies based in Argentina
- Occupational testing companies based in Australia
- Occupational testing companies based in Brazil
- Occupational testing companies based in Canada
- Occupational testing companies based in Chile
Company intelligence · public preview
Top 25 occupational testing companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 897 matching company records for occupational testing companies based in the United States, with 26,454 tracked contacts and 5,289 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 occupational testing companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Concentraow.lyHQ: Addison, TX, United StatesReported employees: 10001+ | Addison, TX, United States | 10001+ | Exact match | 7,526 contacts → |
“WHO WE ARE: Concentra is the leader in occupational health with 40+ years of improving the health of America's workforce, one patient at a time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  QTC Management, INCqtcm.comHQ: Glendora, TN, United StatesReported employees: 1,001-5,000 | Glendora, TN, United States | 1,001-5,000 | Exact match | 1,729 contacts → |
“Leidos QTC Health Services collaborates closely with government and non-government customers to address current and future program needs within the health services domain.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Bioreferencebioreference.comHQ: Elmwood Park, NJ, United StatesReported employees: 1,001-5,000 | Elmwood Park, NJ, United States | 1,001-5,000 | Exact match | 1,520 contacts → |
“For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Examone, A Quest Diagnostics Companyexamone.comHQ: Lenexa, KS, United StatesReported employees: 1,001-5,000 | Lenexa, KS, United States | 1,001-5,000 | Exact match | 1,415 contacts → |
“ExamOne has provided a robust portfolio of laboratory, paramedical and data solutions since 1972, giving it a great deal of understanding about the needs of life insurance and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Disa Global Solutions, INCdisa.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 910 contacts → |
“DISA has been providing full-service employee screening solutions since 1987.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Aegis Sciences Corporationaegislabs.comHQ: Nashville, TN, United StatesReported employees: 501-1,000 | Nashville, TN, United States | 501-1,000 | Exact match | 738 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Clinical Reference Laboratorycrlcorp.comHQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 503 contacts → |
“CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Workcare, INCworkcare.comHQ: Orange, CA, United StatesReported employees: 501-1,000 | Orange, CA, United States | 501-1,000 | Exact match | 483 contacts → |
“WorkCare, Inc, a U.S-based occupational health, wellness and absence management company, is part of the APM Group.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  The IMA Grouptheimagroup.comHQ: Tarrytown, NY, United StatesReported employees: 1,001-5,000 | Tarrytown, NY, United States | 1,001-5,000 | Exact match | 448 contacts → |
“For over 30 years, The IMA Group has been dedicated to enhancing the livelihood and productivity of individuals and organizations navigating challenging periods of health, work…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Arcpoint Labsarcpointlabs.comHQ: Greenville, SC, United StatesReported employees: 201-500 | Greenville, SC, United States | 201-500 | Exact match | 353 contacts → |
“ARCpoint Labs is a trusted industry leader serving our communities with drug, alcohol, DNA, and clinical testing solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Physicians Immediate Carephysiciansimmediatecare.comHQ: Rosemont, IL, United StatesReported employees: 501-1,000 | Rosemont, IL, United States | 501-1,000 | Exact match | 351 contacts → |
“Physicians Immediate Care, also known as Physicians Urgent Care, is a Midwest leader in urgent care and occupational health services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Dominion Diagnosticsdomdiag.comHQ: North Kingstown, RI, United StatesReported employees: 201-500 | North Kingstown, RI, United States | 201-500 | Exact match | 331 contacts → |
“For over 25 years, Dominion Diagnostics has been advancing patient care through trusted diagnostics as a premier urine drug testing and toxicology laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Examineticsexaminetics.comHQ: Overland Park, KS, United StatesReported employees: 201-500 | Overland Park, KS, United States | 201-500 | Exact match | 317 contacts → |
“Examinetics is the leading provider of occupational health solutions, offering services across the entire employee lifecycle with several delivery methods.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Universal Background Screeninguniversalbackground.comHQ: Phoenix, FL, United StatesReported employees: 201-500 | Phoenix, FL, United States | 201-500 | Exact match | 270 contacts → |
“Universal Background provides industry leading people insights to safety sensitive organizations in a simplified experience through our best-in-class background screening, drug…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Quest Diagnostics Employer Solutionsworkforcehealthsolutions.comHQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 236 contacts → |
“Quest Diagnostics Workforce Health Solutions drug offers reliable workforce drug testing, an extensive collection site network, and personal service and support.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Medtox Laboratoriesmedtox.comHQ: New Brighton, MN, United StatesReported employees: 501-1,000 | New Brighton, MN, United States | 501-1,000 | Exact match | 224 contacts → |
“MEDTOX Laboratories contains a full-service clinical laboratory as well as a SAMHSA-certified drug testing laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Mobile Healthmobilehealth.comHQ: Long Island City, NY, United StatesReported employees: 51-200 | Long Island City, NY, United States | 51-200 | Exact match | 196 contacts → |
“Since 1984, Mobile Health has been a trusted employee screening and occupational health provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ghrr NOW Disa Global Solutionsghrr.comHQ: Fort Myers, NJ, United StatesReported employees: 201-500 | Fort Myers, NJ, United States | 201-500 | Exact match | 183 contacts → |
“Better By Every Measure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Prime Occupational Medicineprimeoccmed.comHQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 145 contacts → |
“PRIME Occupational Medicine is committed to providing high-quality occupational health services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Drugscandrugscan.comHQ: Horsham, PA, United StatesReported employees: 51-200 | Horsham, PA, United States | 51-200 | Exact match | 144 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  MBI Industrial Medicinembiclinics.comHQ: Phoenix, AZ, United StatesReported employees: 201-500 | Phoenix, AZ, United States | 201-500 | Exact match | 126 contacts → |
“Founded in 1982, MBI operates 26 clinics across Arizona, Colorado and Nevada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Discovery Health Servicesdiscoveryhealthus.comHQ: La Jolla, CA, United StatesReported employees: 201-500 | La Jolla, CA, United States | 201-500 | Exact match | 117 contacts → |
“Discovery Health Services offers a new approach to workplace wellness that helps both businesses- and their employees - thrive.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Inspire Diagnosticsinspirediagnostics.comHQ: Lake Forest, CA, United StatesReported employees: 51-200 | Lake Forest, CA, United States | 51-200 | Exact match | 104 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Tang Companytangandcompany.comHQ: Torrance, CA, United StatesReported employees: 501-1,000 | Torrance, CA, United States | 501-1,000 | Exact match | 102 contacts → |
“For 45+ years, Tang+Company has been a trusted single source of occupational health services, workforce training, and drug, alcohol, & background check program administration.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  ARC Physical Therapyarcpt.comHQ: Overland Park, KS, United StatesReported employees: 51-200 | Overland Park, KS, United States | 51-200 | Exact match | 93 contacts → |
“ARC Physical Therapy+ started as a physical and occupational therapy company and has grown into the region’s foremost wellness, injury prevention, rehabilitation and sports…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 897 company matches
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Occupational testing companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
892 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 897 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for occupational testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many occupational testing companies did RevenueBase find based in the United States?
The saved snapshot records 897 matching company records, 26,454 tracked contacts and 5,289 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Occupational testing companies by geography
- Occupational testing companies based in Sao Paulo, Brazil
- Occupational testing companies based in Argentina
- Occupational testing companies based in Australia
- Occupational testing companies based in Brazil
- Occupational testing companies based in Canada
- Occupational testing companies based in Chile
- Occupational testing companies based in Colombia
- Occupational testing companies based in Germany
- Occupational testing companies based in India
- Occupational testing companies based in Italy
- Occupational testing companies based in Mexico
- Occupational testing companies based in the Netherlands
Cite this list
RevenueBase Data Team. Top 25 occupational testing companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/occupational-testing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Occupational testing companies based in Sao Paulo, Brazil
- Occupational testing companies based in Argentina
- Occupational testing companies based in Australia
- Occupational testing companies based in Brazil
- Occupational testing companies based in Canada
- Occupational testing companies based in Chile
Company intelligence · public preview
Top 25 occupational testing companies based in the United States
RevenueBase records 897 matching company records for occupational testing companies based in the United States, with 26,454 tracked contacts and 5,289 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 occupational testing companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Concentraow.ly HQ: Addison, TX, United StatesReported employees: 10001+ | Addison, TX, United States | 10001+ | Exact match | 7,526 contacts → |
“WHO WE ARE: Concentra is the leader in occupational health with 40+ years of improving the health of America's workforce, one patient at a time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | QTC Management, INCqtcm.com HQ: Glendora, TN, United StatesReported employees: 1,001-5,000 | Glendora, TN, United States | 1,001-5,000 | Exact match | 1,729 contacts → |
“Leidos QTC Health Services collaborates closely with government and non-government customers to address current and future program needs within the health services domain.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Bioreferencebioreference.com HQ: Elmwood Park, NJ, United StatesReported employees: 1,001-5,000 | Elmwood Park, NJ, United States | 1,001-5,000 | Exact match | 1,520 contacts → |
“For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Examone, A Quest Diagnostics Companyexamone.com HQ: Lenexa, KS, United StatesReported employees: 1,001-5,000 | Lenexa, KS, United States | 1,001-5,000 | Exact match | 1,415 contacts → |
“ExamOne has provided a robust portfolio of laboratory, paramedical and data solutions since 1972, giving it a great deal of understanding about the needs of life insurance and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Disa Global Solutions, INCdisa.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 910 contacts → |
“DISA has been providing full-service employee screening solutions since 1987.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Aegis Sciences Corporationaegislabs.com HQ: Nashville, TN, United StatesReported employees: 501-1,000 | Nashville, TN, United States | 501-1,000 | Exact match | 738 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Clinical Reference Laboratorycrlcorp.com HQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 503 contacts → |
“CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Workcare, INCworkcare.com HQ: Orange, CA, United StatesReported employees: 501-1,000 | Orange, CA, United States | 501-1,000 | Exact match | 483 contacts → |
“WorkCare, Inc, a U.S-based occupational health, wellness and absence management company, is part of the APM Group.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The IMA Grouptheimagroup.com HQ: Tarrytown, NY, United StatesReported employees: 1,001-5,000 | Tarrytown, NY, United States | 1,001-5,000 | Exact match | 448 contacts → |
“For over 30 years, The IMA Group has been dedicated to enhancing the livelihood and productivity of individuals and organizations navigating challenging periods of health, work…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Arcpoint Labsarcpointlabs.com HQ: Greenville, SC, United StatesReported employees: 201-500 | Greenville, SC, United States | 201-500 | Exact match | 353 contacts → |
“ARCpoint Labs is a trusted industry leader serving our communities with drug, alcohol, DNA, and clinical testing solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Physicians Immediate Carephysiciansimmediatecare.com HQ: Rosemont, IL, United StatesReported employees: 501-1,000 | Rosemont, IL, United States | 501-1,000 | Exact match | 351 contacts → |
“Physicians Immediate Care, also known as Physicians Urgent Care, is a Midwest leader in urgent care and occupational health services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dominion Diagnosticsdomdiag.com HQ: North Kingstown, RI, United StatesReported employees: 201-500 | North Kingstown, RI, United States | 201-500 | Exact match | 331 contacts → |
“For over 25 years, Dominion Diagnostics has been advancing patient care through trusted diagnostics as a premier urine drug testing and toxicology laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Examineticsexaminetics.com HQ: Overland Park, KS, United StatesReported employees: 201-500 | Overland Park, KS, United States | 201-500 | Exact match | 317 contacts → |
“Examinetics is the leading provider of occupational health solutions, offering services across the entire employee lifecycle with several delivery methods.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Universal Background Screeninguniversalbackground.com HQ: Phoenix, FL, United StatesReported employees: 201-500 | Phoenix, FL, United States | 201-500 | Exact match | 270 contacts → |
“Universal Background provides industry leading people insights to safety sensitive organizations in a simplified experience through our best-in-class background screening, drug…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Quest Diagnostics Employer Solutionsworkforcehealthsolutions.com HQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 236 contacts → |
“Quest Diagnostics Workforce Health Solutions drug offers reliable workforce drug testing, an extensive collection site network, and personal service and support.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Medtox Laboratoriesmedtox.com HQ: New Brighton, MN, United StatesReported employees: 501-1,000 | New Brighton, MN, United States | 501-1,000 | Exact match | 224 contacts → |
“MEDTOX Laboratories contains a full-service clinical laboratory as well as a SAMHSA-certified drug testing laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Mobile Healthmobilehealth.com HQ: Long Island City, NY, United StatesReported employees: 51-200 | Long Island City, NY, United States | 51-200 | Exact match | 196 contacts → |
“Since 1984, Mobile Health has been a trusted employee screening and occupational health provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ghrr NOW Disa Global Solutionsghrr.com HQ: Fort Myers, NJ, United StatesReported employees: 201-500 | Fort Myers, NJ, United States | 201-500 | Exact match | 183 contacts → |
“Better By Every Measure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Prime Occupational Medicineprimeoccmed.com HQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 145 contacts → |
“PRIME Occupational Medicine is committed to providing high-quality occupational health services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Drugscandrugscan.com HQ: Horsham, PA, United StatesReported employees: 51-200 | Horsham, PA, United States | 51-200 | Exact match | 144 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | MBI Industrial Medicinembiclinics.com HQ: Phoenix, AZ, United StatesReported employees: 201-500 | Phoenix, AZ, United States | 201-500 | Exact match | 126 contacts → |
“Founded in 1982, MBI operates 26 clinics across Arizona, Colorado and Nevada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Discovery Health Servicesdiscoveryhealthus.com HQ: La Jolla, CA, United StatesReported employees: 201-500 | La Jolla, CA, United States | 201-500 | Exact match | 117 contacts → |
“Discovery Health Services offers a new approach to workplace wellness that helps both businesses- and their employees - thrive.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Inspire Diagnosticsinspirediagnostics.com HQ: Lake Forest, CA, United StatesReported employees: 51-200 | Lake Forest, CA, United States | 51-200 | Exact match | 104 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Tang Companytangandcompany.com HQ: Torrance, CA, United StatesReported employees: 501-1,000 | Torrance, CA, United States | 501-1,000 | Exact match | 102 contacts → |
“For 45+ years, Tang+Company has been a trusted single source of occupational health services, workforce training, and drug, alcohol, & background check program administration.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ARC Physical Therapyarcpt.com HQ: Overland Park, KS, United StatesReported employees: 51-200 | Overland Park, KS, United States | 51-200 | Exact match | 93 contacts → |
“ARC Physical Therapy+ started as a physical and occupational therapy company and has grown into the region’s foremost wellness, injury prevention, rehabilitation and sports…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 897 company matches
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Occupational testing companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
892 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 897 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for occupational testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many occupational testing companies did RevenueBase find based in the United States?
The saved snapshot records 897 matching company records, 26,454 tracked contacts and 5,289 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Occupational testing companies by geography
- Occupational testing companies based in Sao Paulo, Brazil
- Occupational testing companies based in Argentina
- Occupational testing companies based in Australia
- Occupational testing companies based in Brazil
- Occupational testing companies based in Canada
- Occupational testing companies based in Chile
- Occupational testing companies based in Colombia
- Occupational testing companies based in Germany
- Occupational testing companies based in India
- Occupational testing companies based in Italy
- Occupational testing companies based in Mexico
- Occupational testing companies based in the Netherlands
Cite this list
RevenueBase Data Team. Top 25 occupational testing companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/occupational-testing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Occupational testing companies based in Sao Paulo, Brazil
- Occupational testing companies based in Argentina
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- Occupational testing companies based in Chile