Company lists · Data refreshed November 2026

Top 25 Certification services based in the United States

RevenueBase identified 393 company matches for certification services associated with the United States as of November 2026 and tracks 23,413 professional contacts across them, including 8,606 with verified work emails. New York is the largest hub.

This list covers company matches for certification services 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 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
393Companies
23,413Contacts tracked
8,606Verified emails
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The 25 largest certification services based in the United States

Ranked by team size
Top 25 of 393 company matches for certification services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNorthbrook, NC, United StatesHQ recorded Nov 5, 202610001+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 5, 2026 · View company records in RevenueBase
2Exact matchWhite Marsh, MD, United StatesHQ recorded Nov 5, 20261,001-5,0002,317 contacts →

Exact match

“Prometric is a global leader in credentialing and skills development.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchBoxborough, CA, United StatesHQ recorded Nov 5, 2026501-1,000763 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 5, 2026 · View company records in RevenueBase
4Exact matchEmeryville, CA, United StatesHQ recorded Nov 5, 2026201-500705 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 5, 2026 · View company records in RevenueBase
5Exact matchScottsdale, AZ, United StatesHQ recorded Nov 5, 2026501-1,000695 contacts →

Exact match

“Expired certificates shouldn’t be the reason your business goes down.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchOrlando, FL, United StatesHQ recorded Nov 5, 2026201-500334 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 5, 2026 · View company records in RevenueBase
7Exact matchWarrendale, PA, United StatesHQ recorded Nov 5, 202651-200207 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 5, 2026 · View company records in RevenueBase
8Exact matchWashington, IN, United StatesHQ recorded Nov 5, 202651-200195 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 5, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Nov 5, 2026n/a159 contacts →

Exact match

“The premier organization independently recognizing excellence in green business industry performance and practice globally.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchWatertown, MA, United StatesHQ recorded Nov 5, 2026501-1,000135 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 5, 2026 · View company records in RevenueBase
11Exact matchThe Woodlands, TX, United StatesHQ recorded Nov 5, 202651-200102 contacts →

Exact match

“INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202651-200101 contacts →

Exact match

“Founded in 2002, SSL.com is a Digital Trust Platform securing online communications, applications, and digital content through PKI solutions and identity trust services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchBrea, CA, United StatesHQ recorded Nov 5, 202611-5093 contacts →

Exact match

“IAS accredits a wide range of companies and organizations including governmental entities, academia, commercial businesses, and professional associations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchWestborough, MA, United StatesHQ recorded Nov 5, 2026501-1,00080 contacts →

Exact match

“The Global Skill Development Council (GSDC) is a professional certification body offering GSDC accredited certifications that empower individuals, institutions, and enterprises…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchMinneapolis, MN, United StatesHQ recorded Nov 5, 202651-20077 contacts →

Exact match

“Plexus International is a global leader in providing training, assessment, and consulting services for organizations to attain quality management systems excellence.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchDayton, OH, United StatesHQ recorded Nov 5, 202611-5076 contacts →

Exact match

“Since 1994, EAGLE has built an excellent reputation by providing third party auditing services that are objective and value-added.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchArvada, MI, United StatesHQ recorded Nov 5, 2026501-1,00066 contacts →

Exact match

“Amtivo delivers accredited certification services to ISO management system standards, training, and sector-specific schemes, helping organizations demonstrate conformity, meet…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchVirginia Beach, VA, United StatesHQ recorded Nov 5, 202651-20064 contacts →

Exact match

“Paradigm, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchNew York, United StatesHQ recorded Nov 5, 20261,001-5,00063 contacts →

Exact match

“Alliance Infinite has consistently maintained its position among the world’s very best quality service providers for Third Party Inspection, Testing, Calibration and Management…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“Certification-as-a-Service for an evolving workforce.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchReston, NC, United StatesHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“CertiPath has distilled over a decade of providing services in the secure credential market into a suite of Identity Products that represent the next wave of security for the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchSunnyvale, CA, United StatesHQ recorded Nov 5, 202611-5049 contacts →

Exact match

“Since 1996, Bay Area Compliance Laboratories Corp.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchDurham, NC, United StatesHQ recorded Nov 5, 202611-5042 contacts →

Exact match

“Drummond is a leading and trusted compliance, conformance, and standards certification, testing, and validation services provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchFreemont, CA, United StatesHQ recorded Nov 5, 20261,001-5,00040 contacts →

Exact match

“IdenTrust, part of HID Global, is a leading provider of digital certificates that establish the basis for trusted identity solutions recognized by financial institutions…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchRockville, MD, United StatesHQ recorded Nov 5, 202651-20040 contacts →

Exact match

“We established Acumen to change how product certifications are performed.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 393 certification services based in the United States

See the full list, filter by size, metro and specialty, and access 8,606 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Certification services based in the United States at a glance

As of Nov 5, 2026
36.8%Verified-email coverage
59.6Average contacts per company
11-50Median size (employees)
3.6%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
172
11-50
139
51-200
51
201-500
11
501-1,000
7
1,001-5,000
6
5,001-10,000
1
10001+
4

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 393 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 services” 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 8,606 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 5, 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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many certification services are there based in the United States?

RevenueBase identified 393 company matches for certification services 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 services?

New York leads with 14 company records, followed by Miami (13) and Houston (12).

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 8,606 professional contacts with verified work emails tracked across these 393 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 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.