Company lists · Data refreshed November 2026
Top 25 Occupational safety testing labs based in the United States
RevenueBase identified 303 company matches for occupational safety testing labs associated with the United States as of November 2026 and tracks 16,744 professional contacts across them, including 5,927 with verified work emails. Houston is the largest hub.
This list covers company matches for occupational safety 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.
The 25 largest occupational safety testing labs based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 766 contacts → | ||||
Exact match “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 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 | |||||
| 3 | 326 contacts → | ||||
Exact match “Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 238 contacts → | ||||
Exact match “MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 219 contacts → | ||||
Exact match “Our laboratory service experts provide clients with precision testing support, innovative scientific approaches, and high-quality data that delivers a sense of certainty.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 211 contacts → | ||||
Exact match “RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 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 | |||||
| 9 | 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 | |||||
| 10 | 128 contacts → | ||||
Exact match “Pacific BioLabs is the leading West Coast provider of GMP/GLP laboratory testing services supporting Medical Device, Pharmaceutical, and Biotechnology industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 79 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 66 contacts → | ||||
Exact match “SKC is a well-known and respected leader in industrial hygiene and occupational safety.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 62 contacts → | ||||
Exact match “OHD is a company committed to our Mission of Passionately Protecting The Health Of The World's Workforce.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 62 contacts → | ||||
Exact match “NMS Management Services is your one-stop White Glove Concierge TPA (Third Party Administrator of Occupational Testing) offering global employment screening services, including…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 59 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 53 contacts → | ||||
Exact match “Criterion provides rapid and reliable solutions to occupational and environmental health problems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 53 contacts → | ||||
Exact match “SanAir Technologies Laboratory, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 52 contacts → | ||||
Exact match “We are a team of world-class engineers and scientists that provides testing, analysis, and other consulting services to companies across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 50 contacts → | ||||
Exact match “PES is an independent testing laboratory, specializing in mechanical, metallurgical, chemical and nondestructive testing and analysis.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 44 contacts → | ||||
Exact match “OccuMedX is an occupational health and safety firm with a focus on preventing workplace injuries and illnesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 44 contacts → | ||||
Exact match “For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 43 contacts → | ||||
Exact match “Since 1972, Product Safety Labs (PSL) has provided research and testing services to the agrochemical, chemical, pharmaceutical, dietary supplement/functional foods, personal care…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 43 contacts → | ||||
Exact match “We help you stay OSHA compliant and keep your employees safe with on-site occupational health, safety, and industrial hygiene services including: Audiometric Hearing Tests…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 40 contacts → | ||||
Exact match “Erthwrks provides air testing services for industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 40 contacts → | ||||
Exact match “Eurofins | CRL, Inc.” 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 safety testing labs”. 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 303 occupational safety testing labs based in the United States
See the full list, filter by size, metro and specialty, and access 5,927 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Occupational safety testing labs 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 303 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 safety 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 5,927 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 safety testing labs”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many occupational safety testing labs are there based in the United States?
RevenueBase identified 303 company matches for occupational safety 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?
Emsl Analytical, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most occupational safety testing labs?
Houston leads with 5 company records, followed by Portland (5) and Charlotte (4).
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 5,927 professional contacts with verified work emails tracked across these 303 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 303 occupational safety testing labs based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Occupational safety testing labs by geography
- Occupational safety testing labs based in Sao Paulo, Brazil
- Occupational safety testing labs based in Australia
- Occupational safety testing labs based in Brazil
- Occupational safety testing labs based in Canada
- Occupational safety testing labs based in Chile
- Occupational safety testing labs based in France
- Occupational safety testing labs based in Germany
- Occupational safety testing labs based in Italy
- Occupational safety testing labs based in the Netherlands
- Occupational safety testing labs based in Türkiye
- Occupational safety testing labs based in the United Kingdom
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 safety testing labs based in Sao Paulo, Brazil
- Occupational safety testing labs based in Australia
- Occupational safety testing labs based in Brazil
- Occupational safety testing labs based in Canada
- Occupational safety testing labs based in Chile
- Occupational safety testing labs based in France
Company intelligence · public preview
Top 25 occupational safety testing labs 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 303 matching company records for occupational safety testing labs based in the United States, with 16,744 tracked contacts and 5,927 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 safety testing labs 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 |  Emsl Analytical, INCemsl.comHQ: Cinnaminson, NJ, United StatesReported employees: 501-1,000 | Cinnaminson, NJ, United States | 501-1,000 | Exact match | 766 contacts → |
“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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. | |||||
| 3 |  Pace Analyticalpacelabs.comHQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 326 contacts → |
“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  MGA Research Corporationmgaresearch.comHQ: Akron, VA, United StatesReported employees: 201-500 | Akron, VA, United States | 201-500 | Exact match | 238 contacts → |
“MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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. | |||||
| 6 |  Enthalpy Analyticalonterris.comHQ: North Little Rock, NC, United StatesReported employees: 501-1,000 | North Little Rock, NC, United States | 501-1,000 | Exact match | 219 contacts → |
“Our laboratory service experts provide clients with precision testing support, innovative scientific approaches, and high-quality data that delivers a sense of certainty.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  RJ LEE Grouprjleegroup.comHQ: Pittsburgh, PA, United StatesReported employees: 201-500 | Pittsburgh, PA, United States | 201-500 | Exact match | 211 contacts → |
“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  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. | |||||
| 10 |  Pacific Biolabs, INCpacificbiolabs.comHQ: Hercules, CA, United StatesReported employees: 51-200 | Hercules, CA, United States | 51-200 | Exact match | 128 contacts → |
“Pacific BioLabs is the leading West Coast provider of GMP/GLP laboratory testing services supporting Medical Device, Pharmaceutical, and Biotechnology industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Teklab, INCteklabinc.comHQ: Collinsville, IL, United StatesReported employees: 201-500 | Collinsville, IL, United States | 201-500 | Exact match | 79 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | SKC INCskcinc.com HQ: Eighty Four, PA, United StatesReported employees: 51-200 | Eighty Four, PA, United States | 51-200 | Exact match | 66 contacts → |
“SKC is a well-known and respected leader in industrial hygiene and occupational safety.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  OHDohdglobal.comHQ: Birmingham, AL, United StatesReported employees: 11-50 | Birmingham, AL, United States | 11-50 | Exact match | 62 contacts → |
“OHD is a company committed to our Mission of Passionately Protecting The Health Of The World's Workforce.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  NMS Screening & Compliancenms123.comHQ: Palm Springs, FL, United StatesReported employees: 11-50 | Palm Springs, FL, United States | 11-50 | Exact match | 62 contacts → |
“NMS Management Services is your one-stop White Glove Concierge TPA (Third Party Administrator of Occupational Testing) offering global employment screening services, including…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Paradigm Environmental Services, INCparadigmenv.comHQ: Rochester, NY, United StatesReported employees: 51-200 | Rochester, NY, United States | 51-200 | Exact match | 59 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Criterion Labs INCcriterionlabs.comHQ: Bensalem Township, PA, United StatesReported employees: 11-50 | Bensalem Township, PA, United States | 11-50 | Exact match | 53 contacts → |
“Criterion provides rapid and reliable solutions to occupational and environmental health problems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Sanair Technologies Laboratorysanair.comHQ: Richmond, OH, United StatesReported employees: 11-50 | Richmond, OH, United States | 11-50 | Exact match | 53 contacts → |
“SanAir Technologies Laboratory, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Biocore LLCbiocorellc.comHQ: Charlottesville, VA, United StatesReported employees: 11-50 | Charlottesville, VA, United States | 11-50 | Exact match | 52 contacts → |
“We are a team of world-class engineers and scientists that provides testing, analysis, and other consulting services to companies across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Product Evaluation Systems, LLCpes-testing.comHQ: Latrobe, PA, United StatesReported employees: 51-200 | Latrobe, PA, United States | 51-200 | Exact match | 50 contacts → |
“PES is an independent testing laboratory, specializing in mechanical, metallurgical, chemical and nondestructive testing and analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Occumedx Group, INCoccumedx.comHQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 44 contacts → |
“OccuMedX is an occupational health and safety firm with a focus on preventing workplace injuries and illnesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  RTI Laboratories, INCrtilab.comHQ: Livonia, MI, United StatesReported employees: 51-200 | Livonia, MI, United States | 51-200 | Exact match | 44 contacts → |
“For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Product Safety Labsproductsafetylabs.comHQ: Dayton, NJ, United StatesReported employees: 51-200 | Dayton, NJ, United States | 51-200 | Exact match | 43 contacts → |
“Since 1972, Product Safety Labs (PSL) has provided research and testing services to the agrochemical, chemical, pharmaceutical, dietary supplement/functional foods, personal care…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  MHDmhdhealth.comHQ: Broomfield, CO, United StatesReported employees: 11-50 | Broomfield, CO, United States | 11-50 | Exact match | 43 contacts → |
“We help you stay OSHA compliant and keep your employees safe with on-site occupational health, safety, and industrial hygiene services including: Audiometric Hearing Tests…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Erthwrks, LLCerthwrks.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 40 contacts → |
“Erthwrks provides air testing services for industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Eurofins Crl, INCcrlresearchlabs.com HQ: Piscataway, NJ, United StatesReported employees: 51-200 | Piscataway, NJ, United States | 51-200 | Exact match | 40 contacts → |
“Eurofins | CRL, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 303 company matches
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Occupational safety testing labs: 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
302 records in the displayed employee bands.
1 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 303 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 safety testing labs?
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 safety testing labs did RevenueBase find based in the United States?
The saved snapshot records 303 matching company records, 16,744 tracked contacts and 5,927 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 safety testing labs by geography
- Occupational safety testing labs based in Sao Paulo, Brazil
- Occupational safety testing labs based in Australia
- Occupational safety testing labs based in Brazil
- Occupational safety testing labs based in Canada
- Occupational safety testing labs based in Chile
- Occupational safety testing labs based in France
- Occupational safety testing labs based in Germany
- Occupational safety testing labs based in Italy
- Occupational safety testing labs based in the Netherlands
- Occupational safety testing labs based in Türkiye
- Occupational safety testing labs based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 occupational safety testing labs based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/occupational-safety-testing-labs/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 safety testing labs based in Sao Paulo, Brazil
- Occupational safety testing labs based in Australia
- Occupational safety testing labs based in Brazil
- Occupational safety testing labs based in Canada
- Occupational safety testing labs based in Chile
- Occupational safety testing labs based in France
Company intelligence · public preview
Top 25 occupational safety testing labs based in the United States
RevenueBase records 303 matching company records for occupational safety testing labs based in the United States, with 16,744 tracked contacts and 5,927 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 safety testing labs 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 | Emsl Analytical, INCemsl.com HQ: Cinnaminson, NJ, United StatesReported employees: 501-1,000 | Cinnaminson, NJ, United States | 501-1,000 | Exact match | 766 contacts → |
“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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. | |||||
| 3 | Pace Analyticalpacelabs.com HQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 326 contacts → |
“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | MGA Research Corporationmgaresearch.com HQ: Akron, VA, United StatesReported employees: 201-500 | Akron, VA, United States | 201-500 | Exact match | 238 contacts → |
“MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 | Enthalpy Analyticalonterris.com HQ: North Little Rock, NC, United StatesReported employees: 501-1,000 | North Little Rock, NC, United States | 501-1,000 | Exact match | 219 contacts → |
“Our laboratory service experts provide clients with precision testing support, innovative scientific approaches, and high-quality data that delivers a sense of certainty.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | RJ LEE Grouprjleegroup.com HQ: Pittsburgh, PA, United StatesReported employees: 201-500 | Pittsburgh, PA, United States | 201-500 | Exact match | 211 contacts → |
“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | 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. | |||||
| 10 | Pacific Biolabs, INCpacificbiolabs.com HQ: Hercules, CA, United StatesReported employees: 51-200 | Hercules, CA, United States | 51-200 | Exact match | 128 contacts → |
“Pacific BioLabs is the leading West Coast provider of GMP/GLP laboratory testing services supporting Medical Device, Pharmaceutical, and Biotechnology industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Teklab, INCteklabinc.com HQ: Collinsville, IL, United StatesReported employees: 201-500 | Collinsville, IL, United States | 201-500 | Exact match | 79 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | SKC INCskcinc.com HQ: Eighty Four, PA, United StatesReported employees: 51-200 | Eighty Four, PA, United States | 51-200 | Exact match | 66 contacts → |
“SKC is a well-known and respected leader in industrial hygiene and occupational safety.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | OHDohdglobal.com HQ: Birmingham, AL, United StatesReported employees: 11-50 | Birmingham, AL, United States | 11-50 | Exact match | 62 contacts → |
“OHD is a company committed to our Mission of Passionately Protecting The Health Of The World's Workforce.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | NMS Screening & Compliancenms123.com HQ: Palm Springs, FL, United StatesReported employees: 11-50 | Palm Springs, FL, United States | 11-50 | Exact match | 62 contacts → |
“NMS Management Services is your one-stop White Glove Concierge TPA (Third Party Administrator of Occupational Testing) offering global employment screening services, including…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Paradigm Environmental Services, INCparadigmenv.com HQ: Rochester, NY, United StatesReported employees: 51-200 | Rochester, NY, United States | 51-200 | Exact match | 59 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Criterion Labs INCcriterionlabs.com HQ: Bensalem Township, PA, United StatesReported employees: 11-50 | Bensalem Township, PA, United States | 11-50 | Exact match | 53 contacts → |
“Criterion provides rapid and reliable solutions to occupational and environmental health problems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sanair Technologies Laboratorysanair.com HQ: Richmond, OH, United StatesReported employees: 11-50 | Richmond, OH, United States | 11-50 | Exact match | 53 contacts → |
“SanAir Technologies Laboratory, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Biocore LLCbiocorellc.com HQ: Charlottesville, VA, United StatesReported employees: 11-50 | Charlottesville, VA, United States | 11-50 | Exact match | 52 contacts → |
“We are a team of world-class engineers and scientists that provides testing, analysis, and other consulting services to companies across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Product Evaluation Systems, LLCpes-testing.com HQ: Latrobe, PA, United StatesReported employees: 51-200 | Latrobe, PA, United States | 51-200 | Exact match | 50 contacts → |
“PES is an independent testing laboratory, specializing in mechanical, metallurgical, chemical and nondestructive testing and analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Occumedx Group, INCoccumedx.com HQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 44 contacts → |
“OccuMedX is an occupational health and safety firm with a focus on preventing workplace injuries and illnesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | RTI Laboratories, INCrtilab.com HQ: Livonia, MI, United StatesReported employees: 51-200 | Livonia, MI, United States | 51-200 | Exact match | 44 contacts → |
“For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Product Safety Labsproductsafetylabs.com HQ: Dayton, NJ, United StatesReported employees: 51-200 | Dayton, NJ, United States | 51-200 | Exact match | 43 contacts → |
“Since 1972, Product Safety Labs (PSL) has provided research and testing services to the agrochemical, chemical, pharmaceutical, dietary supplement/functional foods, personal care…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | MHDmhdhealth.com HQ: Broomfield, CO, United StatesReported employees: 11-50 | Broomfield, CO, United States | 11-50 | Exact match | 43 contacts → |
“We help you stay OSHA compliant and keep your employees safe with on-site occupational health, safety, and industrial hygiene services including: Audiometric Hearing Tests…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Erthwrks, LLCerthwrks.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 40 contacts → |
“Erthwrks provides air testing services for industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Eurofins Crl, INCcrlresearchlabs.com HQ: Piscataway, NJ, United StatesReported employees: 51-200 | Piscataway, NJ, United States | 51-200 | Exact match | 40 contacts → |
“Eurofins | CRL, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 303 company matches
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Occupational safety testing labs: 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
302 records in the displayed employee bands.
1 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 303 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 safety testing labs?
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 safety testing labs did RevenueBase find based in the United States?
The saved snapshot records 303 matching company records, 16,744 tracked contacts and 5,927 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 safety testing labs by geography
- Occupational safety testing labs based in Sao Paulo, Brazil
- Occupational safety testing labs based in Australia
- Occupational safety testing labs based in Brazil
- Occupational safety testing labs based in Canada
- Occupational safety testing labs based in Chile
- Occupational safety testing labs based in France
- Occupational safety testing labs based in Germany
- Occupational safety testing labs based in Italy
- Occupational safety testing labs based in the Netherlands
- Occupational safety testing labs based in Türkiye
- Occupational safety testing labs based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 occupational safety testing labs based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/occupational-safety-testing-labs/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 safety testing labs based in Sao Paulo, Brazil
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- Occupational safety testing labs based in Brazil
- Occupational safety testing labs based in Canada
- Occupational safety testing labs based in Chile
- Occupational safety testing labs based in France