Company lists · Data refreshed November 2026
Top 23 Certification companies based in the United States
RevenueBase identified 875 company matches for certification companies associated with the United States as of November 2026 and tracks 61,557 professional contacts across them, including 21,662 with verified work emails. Miami is the largest hub.
This list covers company matches for certification companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 23 largest certification companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,154 contacts → | ||||
Exact match “A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 3,737 contacts → | ||||
Exact match “The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 2,317 contacts → | ||||
Exact match “Prometric is a global leader in credentialing and skills development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 896 contacts → | ||||
Exact match “A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 763 contacts → | ||||
Exact match “TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 705 contacts → | ||||
Exact match “Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 494 contacts → | ||||
Exact match “Hohenstein Group Hohenstein is a family-owned company with more than 80 years of experience in testing, certification and research.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 490 contacts → | ||||
Exact match “SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 414 contacts → | ||||
Exact match “For more than 50 years, Technical Safety Services has helped laboratories, pharmacies, healthcare, and life science facilities protect the environments and systems they depend on.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 395 contacts → | ||||
Exact match “NSF is the leading global certifier of Global Food Safety Initiative (GFSI) benchmarked certifications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 375 contacts → | ||||
Exact match “Life Cycle Testing, Inspection, Certification & Engineering Solutions for Mission Critical Facilities Worldwide Commitment to Diversity – FST is dedicated to non-discriminatory…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 334 contacts → | ||||
Exact match “Certus is a leading professional ed-tech training and certification company that, through its suite of brands and businesses, delivers technical-skills training and compliance…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 298 contacts → | ||||
Exact match “Accreditation Commission for Health Care (ACHC) is a leader in accreditation and related education, trusted by healthcare organizations internationally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 241 contacts → | ||||
Exact match “Certified Group partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes®.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 207 contacts → | ||||
Exact match “Performance Review Institute® (PRI℠) is headquartered in Pittsburgh, Pennsylvania in the USA, with offices in London, UK to serve Europe and in Beijing, China and Aichi, Japan…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 205 contacts → | ||||
Exact match “We are a global training certification company that relies heavily on electronic education and media platforms to bring vital Differentiated Instruction and Credentialed…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 195 contacts → | ||||
Exact match “Eurofins Electrical & Electronics North America is a leading testing and certification laboratory, providing a unique array of testing services and accreditations for regulatory…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 195 contacts → | ||||
Exact match “The ANSI National Accreditation Board plays an important role in ensuring the safety and quality of goods and services and in protecting the environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 159 contacts → | ||||
Exact match “The premier organization independently recognizing excellence in green business industry performance and practice globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 155 contacts → | ||||
Exact match “There are a multitude of information security certifications, but only GIAC certifications validate the true hands-on skills that go beyond theory and test the pragmatics of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 142 contacts → | ||||
Exact match “HITRUST is the leader in validated cybersecurity assurance used in third-party risk management and compliance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 142 contacts → | ||||
Exact match “A2LA is a nonprofit, non-governmental, public service, membership society.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 135 contacts → | ||||
Exact match “RoyalCert is one of the fastest-growing certification bodies, with an international presence in more than 30 countries that is constantly expanding.” 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 “certification companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 23 of 875 certification companies based in the United States
See the full list, filter by size, metro and specialty, and access 21,662 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Certification companies based in the United States at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 875 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 “certification companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 21,662 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 “certification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many certification companies are there based in the United States?
RevenueBase identified 875 company matches for certification companies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
UL Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most certification companies?
Miami leads with 25 company records, followed by Houston (23) and New York (21).
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 21,662 professional contacts with verified work emails tracked across these 875 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 875 certification companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Certification companies by geography
- Certification companies based in Buenos Aires, Argentina
- Certification companies based in Sydney, Australia
- Certification companies based in Rio De Janeiro, Brazil
- Certification companies based in Sao Paulo, Brazil
- Certification companies based in Paris, France
- Certification companies based in Berlin, Germany
- Certification companies based in Bangalore, India
- Certification companies based in Mumbai, India
- Certification companies based in New Delhi, India
- Certification companies based in Noida, India
- Certification companies based in Pune, India
- Certification companies based in Milan, Italy
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
- Certification companies based in Buenos Aires, Argentina
- Certification companies based in Sydney, Australia
- Certification companies based in Rio De Janeiro, Brazil
- Certification companies based in Sao Paulo, Brazil
- Certification companies based in Paris, France
- Certification companies based in Berlin, Germany
Company intelligence · public preview
Top 23 certification companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 875 matching company records for certification companies based in the United States, with 61,557 tracked contacts and 21,662 verified work emails.
This public preview shows 23 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 23 certification companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  UL Solutionsul.comHQ: Northbrook, NC, United StatesReported employees: 10001+ | Northbrook, NC, United States | 10001+ | Exact match | 13,154 contacts → |
“A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Amspec Groupamspecgroup.comHQ: Cranbury, NJ, United StatesReported employees: 5,001-10,000 | Cranbury, NJ, United States | 5,001-10,000 | Exact match | 3,737 contacts → |
“The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Prometricprometric.comHQ: White Marsh, MD, United StatesReported employees: 1,001-5,000 | White Marsh, MD, United States | 1,001-5,000 | Exact match | 2,317 contacts → |
“Prometric is a global leader in credentialing and skills development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  A-Ligna-lign.comHQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 896 contacts → |
“A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  TÜV Rheinland North Americatuv.comHQ: Boxborough, CA, United StatesReported employees: 501-1,000 | Boxborough, CA, United States | 501-1,000 | Exact match | 763 contacts → |
“TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  SCS Global Servicesscsglobalservices.comHQ: Emeryville, CA, United StatesReported employees: 201-500 | Emeryville, CA, United States | 201-500 | Exact match | 705 contacts → |
“Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Hohenstein Grouphohenstein.comHQ: Bönnigheim, IN, United StatesReported employees: 1,001-5,000 | Bönnigheim, IN, United States | 1,001-5,000 | Exact match | 494 contacts → |
“Hohenstein Group Hohenstein is a family-owned company with more than 80 years of experience in testing, certification and research.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  SPLspllabs.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 490 contacts → |
“SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Technical Safety Servicestechsafety.comHQ: San Diego, MD, United StatesReported employees: 501-1,000 | San Diego, MD, United States | 501-1,000 | Exact match | 414 contacts → |
“For more than 50 years, Technical Safety Services has helped laboratories, pharmacies, healthcare, and life science facilities protect the environments and systems they depend on.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  NSFnsf.orgHQ: Ann Arbor, MI, United StatesReported employees: 501-1,000 | Ann Arbor, MI, United States | 501-1,000 | Exact match | 395 contacts → |
“NSF is the leading global certifier of Global Food Safety Initiative (GFSI) benchmarked certifications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  FST Technical Servicesfsttechnical.comHQ: Chandler, PA, United StatesReported employees: 201-500 | Chandler, PA, United States | 201-500 | Exact match | 375 contacts → |
“Life Cycle Testing, Inspection, Certification & Engineering Solutions for Mission Critical Facilities Worldwide Commitment to Diversity – FST is dedicated to non-discriminatory…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Certuscertus.comHQ: Orlando, FL, United StatesReported employees: 201-500 | Orlando, FL, United States | 201-500 | Exact match | 334 contacts → |
“Certus is a leading professional ed-tech training and certification company that, through its suite of brands and businesses, delivers technical-skills training and compliance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Cary, NC, United StatesReported employees: 201-500 | Cary, NC, United States | 201-500 | Exact match | 298 contacts → |
“Accreditation Commission for Health Care (ACHC) is a leader in accreditation and related education, trusted by healthcare organizations internationally.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Certified Groupcertifiedgroup.comHQ: Melville, NY, United StatesReported employees: 1,001-5,000 | Melville, NY, United States | 1,001-5,000 | Exact match | 241 contacts → |
“Certified Group partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes®.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  PRI Performance Review Institutep-r-i.orgHQ: Warrendale, PA, United StatesReported employees: 51-200 | Warrendale, PA, United States | 51-200 | Exact match | 207 contacts → |
“Performance Review Institute® (PRI℠) is headquartered in Pittsburgh, Pennsylvania in the USA, with offices in London, UK to serve Europe and in Beijing, China and Aichi, Japan…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  International Traininginternationaltraining.usHQ: Stuart, FL, United StatesReported employees: 51-200 | Stuart, FL, United States | 51-200 | Exact match | 205 contacts → |
“We are a global training certification company that relies heavily on electronic education and media platforms to bring vital Differentiated Instruction and Credentialed…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Baltimore, TX, United StatesReported employees: 201-500 | Baltimore, TX, United States | 201-500 | Exact match | 195 contacts → |
“Eurofins Electrical & Electronics North America is a leading testing and certification laboratory, providing a unique array of testing services and accreditations for regulatory…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ANABanab.orgHQ: Washington, IN, United StatesReported employees: 51-200 | Washington, IN, United States | 51-200 | Exact match | 195 contacts → |
“The ANSI National Accreditation Board plays an important role in ensuring the safety and quality of goods and services and in protecting the environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 159 contacts → |
“The premier organization independently recognizing excellence in green business industry performance and practice globally.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Giac Certificationsgiac.orgHQ: Bethesda, MD, United StatesReported employees: 201-500 | Bethesda, MD, United States | 201-500 | Exact match | 155 contacts → |
“There are a multitude of information security certifications, but only GIAC certifications validate the true hands-on skills that go beyond theory and test the pragmatics of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Hitrusthitrustalliance.netHQ: Frisco, TX, United StatesReported employees: 51-200 | Frisco, TX, United States | 51-200 | Exact match | 142 contacts → |
“HITRUST is the leader in validated cybersecurity assurance used in third-party risk management and compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  A2laa2la.orgHQ: Frederick, MD, United StatesReported employees: 51-200 | Frederick, MD, United States | 51-200 | Exact match | 142 contacts → |
“A2LA is a nonprofit, non-governmental, public service, membership society.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Royalcert International Registrarsroyalcert.comHQ: Watertown, MA, United StatesReported employees: 501-1,000 | Watertown, MA, United States | 501-1,000 | Exact match | 135 contacts → |
“RoyalCert is one of the fastest-growing certification bodies, with an international presence in more than 30 countries that is constantly expanding.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 875 company matches
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Certification companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
870 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 875 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 certification companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many certification companies did RevenueBase find based in the United States?
The saved snapshot records 875 matching company records, 61,557 tracked contacts and 21,662 verified emails. The public preview displays 23 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
Certification companies by geography
- Certification companies based in Buenos Aires, Argentina
- Certification companies based in Sydney, Australia
- Certification companies based in Rio De Janeiro, Brazil
- Certification companies based in Sao Paulo, Brazil
- Certification companies based in Paris, France
- Certification companies based in Berlin, Germany
- Certification companies based in Bangalore, India
- Certification companies based in Mumbai, India
- Certification companies based in New Delhi, India
- Certification companies based in Noida, India
- Certification companies based in Pune, India
- Certification companies based in Milan, Italy
Cite this list
RevenueBase Data Team. Top 23 certification companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/certification-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Certification companies based in Buenos Aires, Argentina
- Certification companies based in Sydney, Australia
- Certification companies based in Rio De Janeiro, Brazil
- Certification companies based in Sao Paulo, Brazil
- Certification companies based in Paris, France
- Certification companies based in Berlin, Germany
Company intelligence · public preview
Top 23 certification companies based in the United States
RevenueBase records 875 matching company records for certification companies based in the United States, with 61,557 tracked contacts and 21,662 verified work emails.
This public preview shows 23 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 23 certification companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | UL Solutionsul.com HQ: Northbrook, NC, United StatesReported employees: 10001+ | Northbrook, NC, United States | 10001+ | Exact match | 13,154 contacts → |
“A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Amspec Groupamspecgroup.com HQ: Cranbury, NJ, United StatesReported employees: 5,001-10,000 | Cranbury, NJ, United States | 5,001-10,000 | Exact match | 3,737 contacts → |
“The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Prometricprometric.com HQ: White Marsh, MD, United StatesReported employees: 1,001-5,000 | White Marsh, MD, United States | 1,001-5,000 | Exact match | 2,317 contacts → |
“Prometric is a global leader in credentialing and skills development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | A-Ligna-lign.com HQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 896 contacts → |
“A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | TÜV Rheinland North Americatuv.com HQ: Boxborough, CA, United StatesReported employees: 501-1,000 | Boxborough, CA, United States | 501-1,000 | Exact match | 763 contacts → |
“TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | SCS Global Servicesscsglobalservices.com HQ: Emeryville, CA, United StatesReported employees: 201-500 | Emeryville, CA, United States | 201-500 | Exact match | 705 contacts → |
“Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hohenstein Grouphohenstein.com HQ: Bönnigheim, IN, United StatesReported employees: 1,001-5,000 | Bönnigheim, IN, United States | 1,001-5,000 | Exact match | 494 contacts → |
“Hohenstein Group Hohenstein is a family-owned company with more than 80 years of experience in testing, certification and research.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | SPLspllabs.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 490 contacts → |
“SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Technical Safety Servicestechsafety.com HQ: San Diego, MD, United StatesReported employees: 501-1,000 | San Diego, MD, United States | 501-1,000 | Exact match | 414 contacts → |
“For more than 50 years, Technical Safety Services has helped laboratories, pharmacies, healthcare, and life science facilities protect the environments and systems they depend on.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | NSFnsf.org HQ: Ann Arbor, MI, United StatesReported employees: 501-1,000 | Ann Arbor, MI, United States | 501-1,000 | Exact match | 395 contacts → |
“NSF is the leading global certifier of Global Food Safety Initiative (GFSI) benchmarked certifications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | FST Technical Servicesfsttechnical.com HQ: Chandler, PA, United StatesReported employees: 201-500 | Chandler, PA, United States | 201-500 | Exact match | 375 contacts → |
“Life Cycle Testing, Inspection, Certification & Engineering Solutions for Mission Critical Facilities Worldwide Commitment to Diversity – FST is dedicated to non-discriminatory…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Certuscertus.com HQ: Orlando, FL, United StatesReported employees: 201-500 | Orlando, FL, United States | 201-500 | Exact match | 334 contacts → |
“Certus is a leading professional ed-tech training and certification company that, through its suite of brands and businesses, delivers technical-skills training and compliance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Cary, NC, United StatesReported employees: 201-500 | Cary, NC, United States | 201-500 | Exact match | 298 contacts → |
“Accreditation Commission for Health Care (ACHC) is a leader in accreditation and related education, trusted by healthcare organizations internationally.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Certified Groupcertifiedgroup.com HQ: Melville, NY, United StatesReported employees: 1,001-5,000 | Melville, NY, United States | 1,001-5,000 | Exact match | 241 contacts → |
“Certified Group partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes®.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | PRI Performance Review Institutep-r-i.org HQ: Warrendale, PA, United StatesReported employees: 51-200 | Warrendale, PA, United States | 51-200 | Exact match | 207 contacts → |
“Performance Review Institute® (PRI℠) is headquartered in Pittsburgh, Pennsylvania in the USA, with offices in London, UK to serve Europe and in Beijing, China and Aichi, Japan…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | International Traininginternationaltraining.us HQ: Stuart, FL, United StatesReported employees: 51-200 | Stuart, FL, United States | 51-200 | Exact match | 205 contacts → |
“We are a global training certification company that relies heavily on electronic education and media platforms to bring vital Differentiated Instruction and Credentialed…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Baltimore, TX, United StatesReported employees: 201-500 | Baltimore, TX, United States | 201-500 | Exact match | 195 contacts → |
“Eurofins Electrical & Electronics North America is a leading testing and certification laboratory, providing a unique array of testing services and accreditations for regulatory…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ANABanab.org HQ: Washington, IN, United StatesReported employees: 51-200 | Washington, IN, United States | 51-200 | Exact match | 195 contacts → |
“The ANSI National Accreditation Board plays an important role in ensuring the safety and quality of goods and services and in protecting the environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 159 contacts → |
“The premier organization independently recognizing excellence in green business industry performance and practice globally.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Giac Certificationsgiac.org HQ: Bethesda, MD, United StatesReported employees: 201-500 | Bethesda, MD, United States | 201-500 | Exact match | 155 contacts → |
“There are a multitude of information security certifications, but only GIAC certifications validate the true hands-on skills that go beyond theory and test the pragmatics of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hitrusthitrustalliance.net HQ: Frisco, TX, United StatesReported employees: 51-200 | Frisco, TX, United States | 51-200 | Exact match | 142 contacts → |
“HITRUST is the leader in validated cybersecurity assurance used in third-party risk management and compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | A2laa2la.org HQ: Frederick, MD, United StatesReported employees: 51-200 | Frederick, MD, United States | 51-200 | Exact match | 142 contacts → |
“A2LA is a nonprofit, non-governmental, public service, membership society.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Royalcert International Registrarsroyalcert.com HQ: Watertown, MA, United StatesReported employees: 501-1,000 | Watertown, MA, United States | 501-1,000 | Exact match | 135 contacts → |
“RoyalCert is one of the fastest-growing certification bodies, with an international presence in more than 30 countries that is constantly expanding.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 875 company matches
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Certification companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
870 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 875 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 certification companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many certification companies did RevenueBase find based in the United States?
The saved snapshot records 875 matching company records, 61,557 tracked contacts and 21,662 verified emails. The public preview displays 23 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
Certification companies by geography
- Certification companies based in Buenos Aires, Argentina
- Certification companies based in Sydney, Australia
- Certification companies based in Rio De Janeiro, Brazil
- Certification companies based in Sao Paulo, Brazil
- Certification companies based in Paris, France
- Certification companies based in Berlin, Germany
- Certification companies based in Bangalore, India
- Certification companies based in Mumbai, India
- Certification companies based in New Delhi, India
- Certification companies based in Noida, India
- Certification companies based in Pune, India
- Certification companies based in Milan, Italy
Cite this list
RevenueBase Data Team. Top 23 certification companies based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/certification-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
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- Certification companies based in Buenos Aires, Argentina
- Certification companies based in Sydney, Australia
- Certification companies based in Rio De Janeiro, Brazil
- Certification companies based in Sao Paulo, Brazil
- Certification companies based in Paris, France
- Certification companies based in Berlin, Germany