Company lists · Data refreshed September 2026
Top 25 Accreditation bodies based in the United States
RevenueBase identified 309 accreditation bodies headquartered in the United States as of September 2026 and tracks 8,806 professional contacts across them, including 2,929 with verified work emails. Washington is the largest hub.
This list covers accreditation bodies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 accreditation bodies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,367 contacts → | ||||
Indirect evidence “Joint Commission enables and affirms the highest standards of healthcare quality and patient safety for all.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 713 contacts → | ||||
Indirect evidence “Cognia is a global, nonprofit improvement organization dedicated to helping institutions and other education providers grow learners, teachers, and leaders.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 623 contacts → | ||||
Indirect evidence “CARF International is an independent, nonprofit accreditor of health and human services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 279 contacts → | ||||
Partial evidence “Accreditation Commission for Health Care (ACHC) is a leader in accreditation and related education, trusted by healthcare organizations internationally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 255 contacts → | ||||
Indirect evidence “We're a nonprofit quality assurance organization focused on higher education programs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 229 contacts → | ||||
Indirect evidence “Quality Matters (QM) is the global organization leading quality assurance in online and innovative digital teaching and learning environments.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 217 contacts → | ||||
Indirect evidence “The Higher Learning Commission was founded in 1895 as one of six historically regional institutional accreditors in the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 201 contacts → | ||||
Partial evidence “Founded in 1979, is the leader in ambulatory health care accreditation, with more than 6,800 organizations accredited.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 200 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 199 contacts → | ||||
Partial evidence “The ANSI National Accreditation Board plays an important role in ensuring the safety and quality of goods and services and in protecting the environment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 156 contacts → | ||||
Indirect evidence “The premier organization independently recognizing excellence in green business industry performance and practice globally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 142 contacts → | ||||
Indirect evidence “A2LA is a nonprofit, non-governmental, public service, membership society.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 120 contacts → | ||||
Partial evidence “RoyalCert is one of the fastest-growing certification bodies, with an international presence in more than 30 countries that is constantly expanding.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 102 contacts → | ||||
Partial evidence “Based in Philadelphia, the Middle States Association is the worldwide leader in accreditation and school improvement.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 98 contacts → | ||||
Partial evidence “ICC Evaluation Service (ICC-ES) is a certification body that is a subsidiary of the International Code Council and is accredited by the ANSI National National Accreditation Board…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 91 contacts → | ||||
Partial evidence “CPSE is the not-for-profit organization that accredits fire/rescue departments (Commission on Fire Accreditation International), provides professional designations for fire/rescue…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 88 contacts → | ||||
Indirect evidence “IAS accredits a wide range of companies and organizations including governmental entities, academia, commercial businesses, and professional associations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 83 contacts → | ||||
Partial evidence “Since its founding in 1980, QUAD A (a non-profit, physician founded and led global accreditation organization) has worked with thousands of healthcare facilities to standardize…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 80 contacts → | ||||
Indirect evidence “Since 1994, EAGLE has built an excellent reputation by providing third party auditing services that are objective and value-added.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 80 contacts → | ||||
Indirect evidence “Exemplar Global Inc.(formerly RABQSA) is a not-for-profit organization with shared headquarters in both the United States and Australia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 72 contacts → | ||||
Indirect evidence “The Middle States Commission on Higher Education (MSCHE) is a global institutional accreditor recognized by the United States Secretary of Education since 1952.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 72 contacts → | ||||
Partial evidence “As a leader in health education accreditation for over 40 years, ABHES has been nationally recognized by the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 70 contacts → | ||||
Partial evidence “Established in 1988, the Accreditation Council of Business Schools and Programs accredits business and accounting-related programs at all degree levels worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 68 contacts → | ||||
Partial evidence “The Intersocietal Accreditation Commission (IAC) provides accreditation programs for diagnostic imaging, interventional and therapeutic procedures.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 59 contacts → | ||||
Indirect evidence “Amtivo delivers accredited certification services to ISO management system standards, training, and sector-specific schemes, helping organizations demonstrate conformity, meet…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: accreditation bodies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names accreditation bodies.
- Partial evidence
- Its own public description names part of accreditation bodies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accreditation bodies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 309 accreditation bodies based in the United States
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Accreditation bodies based in the United States at a glance
As of Sep 19, 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 309 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among accreditation bodies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “accreditation bodies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names accreditation bodies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among accreditation bodies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 2,929 across the full list. 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 September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names accreditation bodies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many accreditation bodies are there based in the United States?
RevenueBase identified 309 accreditation bodies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Joint Commission, headquartered in Oakbrook Terrace, tops this list with the largest team on record.
Which city has the most accreditation bodies?
Washington leads with 16 headquartered companies, followed by Houston (9) and Alexandria (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,929 verified decision-maker contacts tracked across these 309 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
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Accreditation bodies by geography
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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 Smart Search, 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.