Company lists · Data refreshed November 2026
Top 25 Dot drug testing laboratories worldwide
RevenueBase identified 581 company matches for dot drug testing laboratories worldwide as of November 2026 and tracks 7,929 professional contacts across them, including 2,807 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for dot drug testing laboratories worldwide, 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. Country and city lists for dot drug testing laboratories follow the table.
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 dot drug testing laboratories worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 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 | 626 contacts → | ||||
Exact match “Millennium Health is an accredited specialty laboratory with over a decade of experience delivering timely, accurate, clinically-actionable information through our nationwide…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 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 | |||||
| 5 | 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 | |||||
| 6 | 259 contacts → | ||||
Exact match “Precision Diagnostics is the only U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 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 | |||||
| 8 | 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 | |||||
| 9 | 160 contacts → | ||||
Exact match “Phamatech was founded in 1991 by a small group of dedicated scientists and business executives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 118 contacts → | ||||
Exact match “Psychemedics develops and delivers the world’s leading hair drug test for detecting drugs of abuse.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 115 contacts → | ||||
Exact match “The Drug Detection Agency (TDDA) is a company that specialises in drug detection, education and prevention programmes in the workplace.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 106 contacts → | ||||
Exact match “At AlphaBiolabs, we help family law professionals, social workers and local authorities obtain the reliable, court-approved evidence they need to make critical safeguarding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 95 contacts → | ||||
Exact match “O Laboratório Contraprova é credenciado ao Denatran para realização do exame toxicológico de larga janela de detecção utilizando cabelos e pelos - exigido dos motoristas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 93 contacts → | ||||
Exact match “Alcolizer Technology is a leading Australian-owned provider of drug and alcohol testing solutions, with over 35 years of experience supporting law enforcement, government…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 91 contacts → | ||||
Exact match “Premier Biotech is a leading manufacturer of rapid drug testing diagnostic devices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 87 contacts → | ||||
Exact match “We bring radical ideas in analytical testing to the clinical laboratory.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 73 contacts → | ||||
Exact match “Genesis Reference Laboratories offers a comprehensive test catalog for a full range of detection capabilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 72 contacts → | ||||
Exact match “We specialize in oral fluid drug testing, offering you the fastest, most accurate, and most tamper-proof drug test currently available.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 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 | |||||
| 20 | 58 contacts → | ||||
Exact match “Lin-Zhi International, Inc.(LZI), located in Santa Clara, California, is a biotechnology company that has been in business since 1998.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 50 contacts → | ||||
Exact match “Welcome to National Labs!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 45 contacts → | ||||
Exact match “A Chromatox é o primeiro laboratório acreditado pela ISO 17025 e credenciado pelo Denatran para realizar análises toxicológicas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 43 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 42 contacts → | ||||
Exact match “Helix is a value-based, state-of-the-art clinical laboratory on a mission to elevate the lab space through compliance, high ethics, innovation and a best in class client…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 39 contacts → | ||||
Exact match “EXPERIENCE Established in as Cumberland Medical Services by a group of individuals desiring to provide drug testing services to companies, schools, government entities, etc, the…” 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 “dot drug testing laboratories”. 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 581 dot drug testing laboratories worldwide
See the full list, filter by size, metro and specialty, and access 2,807 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Dot drug testing laboratories worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for dot drug testing laboratories are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “dot drug testing laboratories” 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. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 2,807 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.
Dot drug testing laboratories by location
1 lists · largest firstEvery Dot drug testing laboratories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 “dot drug testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many dot drug testing laboratories are there worldwide?
RevenueBase identified 581 company matches for dot drug testing laboratories worldwide 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?
Disa Global Solutions, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most dot drug testing laboratories?
The United States leads with 435 companies. Every dot drug testing laboratories list by country and city is linked on this page.
Which city has the most dot drug testing laboratories?
Houston leads with 8 company records, followed by San Diego (8) and Atlanta (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,807 professional contacts with verified work emails tracked across these 581 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 581 dot drug testing laboratories worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 dot drug testing laboratories worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 581 matching company records for dot drug testing laboratories worldwide, with 7,929 tracked contacts and 2,807 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 dot drug testing laboratories worldwide
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 |  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. | |||||
| 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 |  Millennium Healthmillenniumhealth.comHQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 626 contacts → |
“Millennium Health is an accredited specialty laboratory with over a decade of experience delivering timely, accurate, clinically-actionable information through our nationwide…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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. | |||||
| 5 |  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. | |||||
| 6 |  Precision Diagnosticsprecisiondxlab.comHQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 259 contacts → |
“Precision Diagnostics is the only U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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. | |||||
| 8 |  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. | |||||
| 9 |  Phamatech, INCphamatech.comHQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 160 contacts → |
“Phamatech was founded in 1991 by a small group of dedicated scientists and business executives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Psychemedics Corporationpsychemedics.comHQ: Dallas, CA, United StatesReported employees: 201-500 | Dallas, CA, United States | 201-500 | Exact match | 118 contacts → |
“Psychemedics develops and delivers the world’s leading hair drug test for detecting drugs of abuse.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  The Drug Detection Agencytdda.comHQ: North Shore City, New ZealandReported employees: 51-200 | North Shore City, New Zealand | 51-200 | Exact match | 115 contacts → |
“The Drug Detection Agency (TDDA) is a company that specialises in drug detection, education and prevention programmes in the workplace.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Alphabiolabsalphabiolabs.co.ukHQ: Warrington, United KingdomReported employees: 51-200 | Warrington, United Kingdom | 51-200 | Exact match | 106 contacts → |
“At AlphaBiolabs, we help family law professionals, social workers and local authorities obtain the reliable, court-approved evidence they need to make critical safeguarding…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Laboratório Contraprovacontraprova.com.brHQ: Niterói, BrazilReported employees: 51-200 | Niterói, Brazil | 51-200 | Exact match | 95 contacts → |
“O Laboratório Contraprova é credenciado ao Denatran para realização do exame toxicológico de larga janela de detecção utilizando cabelos e pelos - exigido dos motoristas…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Alcolizer Technologyalcolizer.comHQ: Balcatta, United StatesReported employees: 51-200 | Balcatta, United States | 51-200 | Exact match | 93 contacts → |
“Alcolizer Technology is a leading Australian-owned provider of drug and alcohol testing solutions, with over 35 years of experience supporting law enforcement, government…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Premier Biotechpremierbiotech.comHQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 91 contacts → |
“Premier Biotech is a leading manufacturer of rapid drug testing diagnostic devices.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Radeasradeas.comHQ: Wake Forest, NC, United StatesReported employees: 51-200 | Wake Forest, NC, United States | 51-200 | Exact match | 87 contacts → |
“We bring radical ideas in analytical testing to the clinical laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Genesis Reference Laboratoriesgenesisreferencelabs.comHQ: Orlando, FL, United StatesReported employees: 51-200 | Orlando, FL, United States | 51-200 | Exact match | 73 contacts → |
“Genesis Reference Laboratories offers a comprehensive test catalog for a full range of detection capabilities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Forensic Fluids Laboratoriesforensicfluids.comHQ: Kalamazoo, MI, United StatesReported employees: 51-200 | Kalamazoo, MI, United States | 51-200 | Exact match | 72 contacts → |
“We specialize in oral fluid drug testing, offering you the fastest, most accurate, and most tamper-proof drug test currently available.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  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. | |||||
| 20 |  Lin-Zhi International, INClin-zhi.comHQ: Santa Clara, CA, United StatesReported employees: 11-50 | Santa Clara, CA, United States | 11-50 | Exact match | 58 contacts → |
“Lin-Zhi International, Inc.(LZI), located in Santa Clara, California, is a biotechnology company that has been in business since 1998.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  National Labs INCnationallabs.comHQ: Hayward, CA, United StatesReported employees: 51-200 | Hayward, CA, United States | 51-200 | Exact match | 50 contacts → |
“Welcome to National Labs!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Chromatox Laboratórioschromatox.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 45 contacts → |
“A Chromatox é o primeiro laboratório acreditado pela ISO 17025 e credenciado pelo Denatran para realizar análises toxicológicas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Contexto Consultoria E Empreendimentoscontextosaude.com.br HQ: Rio De Janeiro, BrazilReported employees: 11-50 | Rio De Janeiro, Brazil | 11-50 | Exact match | 43 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  Helix Diagnosticshelixmdx.comHQ: Waterford Township, MI, United StatesReported employees: 51-200 | Waterford Township, MI, United States | 51-200 | Exact match | 42 contacts → |
“Helix is a value-based, state-of-the-art clinical laboratory on a mission to elevate the lab space through compliance, high ethics, innovation and a best in class client…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Premier Integrity Solutionspremierintegrity.comHQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 39 contacts → |
“EXPERIENCE Established in as Cumberland Medical Services by a group of individuals desiring to provide drug testing services to companies, schools, government entities, etc, the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 581 company matches
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Dot drug testing laboratories: 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
575 records in the displayed employee bands.
6 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 581 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 ↗
Dot drug testing laboratories by location
1 lists · largest firstEvery Dot drug testing laboratories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for dot drug testing laboratories?
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 dot drug testing laboratories did RevenueBase find worldwide?
The saved snapshot records 581 matching company records, 7,929 tracked contacts and 2,807 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.
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Cite this list
RevenueBase Data Team. Top 25 dot drug testing laboratories worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/dot-drug-testing-laboratories.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 dot drug testing laboratories worldwide
RevenueBase records 581 matching company records for dot drug testing laboratories worldwide, with 7,929 tracked contacts and 2,807 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 dot drug testing laboratories worldwide
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 | 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. | |||||
| 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 | Millennium Healthmillenniumhealth.com HQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 626 contacts → |
“Millennium Health is an accredited specialty laboratory with over a decade of experience delivering timely, accurate, clinically-actionable information through our nationwide…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | Precision Diagnosticsprecisiondxlab.com HQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 259 contacts → |
“Precision Diagnostics is the only U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | Phamatech, INCphamatech.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 160 contacts → |
“Phamatech was founded in 1991 by a small group of dedicated scientists and business executives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Psychemedics Corporationpsychemedics.com HQ: Dallas, CA, United StatesReported employees: 201-500 | Dallas, CA, United States | 201-500 | Exact match | 118 contacts → |
“Psychemedics develops and delivers the world’s leading hair drug test for detecting drugs of abuse.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | The Drug Detection Agencytdda.com HQ: North Shore City, New ZealandReported employees: 51-200 | North Shore City, New Zealand | 51-200 | Exact match | 115 contacts → |
“The Drug Detection Agency (TDDA) is a company that specialises in drug detection, education and prevention programmes in the workplace.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Alphabiolabsalphabiolabs.co.uk HQ: Warrington, United KingdomReported employees: 51-200 | Warrington, United Kingdom | 51-200 | Exact match | 106 contacts → |
“At AlphaBiolabs, we help family law professionals, social workers and local authorities obtain the reliable, court-approved evidence they need to make critical safeguarding…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Laboratório Contraprovacontraprova.com.br HQ: Niterói, BrazilReported employees: 51-200 | Niterói, Brazil | 51-200 | Exact match | 95 contacts → |
“O Laboratório Contraprova é credenciado ao Denatran para realização do exame toxicológico de larga janela de detecção utilizando cabelos e pelos - exigido dos motoristas…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Alcolizer Technologyalcolizer.com HQ: Balcatta, United StatesReported employees: 51-200 | Balcatta, United States | 51-200 | Exact match | 93 contacts → |
“Alcolizer Technology is a leading Australian-owned provider of drug and alcohol testing solutions, with over 35 years of experience supporting law enforcement, government…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Premier Biotechpremierbiotech.com HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 91 contacts → |
“Premier Biotech is a leading manufacturer of rapid drug testing diagnostic devices.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Radeasradeas.com HQ: Wake Forest, NC, United StatesReported employees: 51-200 | Wake Forest, NC, United States | 51-200 | Exact match | 87 contacts → |
“We bring radical ideas in analytical testing to the clinical laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Genesis Reference Laboratoriesgenesisreferencelabs.com HQ: Orlando, FL, United StatesReported employees: 51-200 | Orlando, FL, United States | 51-200 | Exact match | 73 contacts → |
“Genesis Reference Laboratories offers a comprehensive test catalog for a full range of detection capabilities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Forensic Fluids Laboratoriesforensicfluids.com HQ: Kalamazoo, MI, United StatesReported employees: 51-200 | Kalamazoo, MI, United States | 51-200 | Exact match | 72 contacts → |
“We specialize in oral fluid drug testing, offering you the fastest, most accurate, and most tamper-proof drug test currently available.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 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. | |||||
| 20 | Lin-Zhi International, INClin-zhi.com HQ: Santa Clara, CA, United StatesReported employees: 11-50 | Santa Clara, CA, United States | 11-50 | Exact match | 58 contacts → |
“Lin-Zhi International, Inc.(LZI), located in Santa Clara, California, is a biotechnology company that has been in business since 1998.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | National Labs INCnationallabs.com HQ: Hayward, CA, United StatesReported employees: 51-200 | Hayward, CA, United States | 51-200 | Exact match | 50 contacts → |
“Welcome to National Labs!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Chromatox Laboratórioschromatox.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 45 contacts → |
“A Chromatox é o primeiro laboratório acreditado pela ISO 17025 e credenciado pelo Denatran para realizar análises toxicológicas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Contexto Consultoria E Empreendimentoscontextosaude.com.br HQ: Rio De Janeiro, BrazilReported employees: 11-50 | Rio De Janeiro, Brazil | 11-50 | Exact match | 43 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Helix Diagnosticshelixmdx.com HQ: Waterford Township, MI, United StatesReported employees: 51-200 | Waterford Township, MI, United States | 51-200 | Exact match | 42 contacts → |
“Helix is a value-based, state-of-the-art clinical laboratory on a mission to elevate the lab space through compliance, high ethics, innovation and a best in class client…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Premier Integrity Solutionspremierintegrity.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 39 contacts → |
“EXPERIENCE Established in as Cumberland Medical Services by a group of individuals desiring to provide drug testing services to companies, schools, government entities, etc, the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 581 company matches
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Dot drug testing laboratories: 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
575 records in the displayed employee bands.
6 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 581 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 ↗
Dot drug testing laboratories by location
1 lists · largest firstEvery Dot drug testing laboratories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for dot drug testing laboratories?
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 dot drug testing laboratories did RevenueBase find worldwide?
The saved snapshot records 581 matching company records, 7,929 tracked contacts and 2,807 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
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Cite this list
RevenueBase Data Team. Top 25 dot drug testing laboratories worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/dot-drug-testing-laboratories.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗