Company lists · Data refreshed September 2026
Top 25 Accreditation bodies worldwide
RevenueBase identified 3,362 accreditation bodies worldwide as of September 2026 and tracks 67,328 professional contacts across them, including 13,649 with verified work emails. The United States is the largest market and London the largest hub.
This list covers accreditation bodies worldwide, 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. Country and city lists for accreditation bodies follow the table.
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 worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,928 contacts → | ||||
Indirect evidence “Neutral, independent third party For more than 150 years, TÜV Rheinland has stood for ensuring quality, safety, and efficiency in conjunction with people, the environment, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,563 contacts → | ||||
Indirect evidence “Quality Council of India (QCI) was set up in 1997 jointly by the Government of India and the Indian Industry represented by the three premier industry associations i.e.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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. | |||||
| 4 | 961 contacts → | ||||
Indirect evidence “AENOR is a global company, that identifies and helps organizations to overcome relevant competitiveness gaps.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | 481 contacts → | ||||
Indirect evidence “Al Darwish Engineering W.L.L is an ISO 9001:2008 (Quality Management System), ISO 14001:2004 (Environmental Management System, and ISO 45001:2018 (Health and Safety Management…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 453 contacts → | ||||
Indirect evidence “Démarche volontaire ou réglementaire, l’accréditation consiste à évaluer et reconnaître la compétence technique ainsi que l’impartialité des organismes d’évaluation de la…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 445 contacts → | ||||
Partial evidence “UKAS is the world’s leading #accreditation body delivering confidence in products and services, and supporting global value chains.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 414 contacts → | ||||
Partial evidence “Accreditation Canada (AC) empowers and enables organizations to meet national and global standards with innovative programs that are customized to local needs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 368 contacts → | ||||
Indirect evidence “Busca cumplir y hacer cumplir las normas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 309 contacts → | ||||
Indirect evidence “ANCE es una asociación civil de normalización y certificación con más de 20 años de experiencia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 306 contacts → | ||||
Indirect evidence “La Comisión Nacional de Acreditación, CNA, es un órgano creado por la Ley de Aseguramiento de la Calidad de la Educación Superior N°20.129, promulgada por la Presidencia de la…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 299 contacts → | ||||
Indirect evidence “TÜV NORD Nederland is part of the international TÜV NORD Group and has been contributing to the daily success of many companies in the Netherlands and abroad through the provision…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 291 contacts → | ||||
Indirect evidence “Türk Akreditasyon Kurumu kısa adıyla TÜRKAK, uygunluk değerlendirme kuruluşlarını akredite etmek, bu kuruluşların ulusal ve uluslararası standartlara göre faaliyette bulunmalarını…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 288 contacts → | ||||
Indirect evidence “El Organismo Nacional de Acreditación de Colombia - ONAC es una corporación sin ánimo de lucro, regida por el derecho privado, constituida en 2007 y que por disposición…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 283 contacts → | ||||
Strong evidence “The "Raad voor Accreditatie"(Dutch Accreditation Council RvA) is the national accreditation body in the Netherlands for accreditation of conformity assessment bodies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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. | |||||
| 19 | 276 contacts → | ||||
Indirect evidence “Lenor es un “Organismo de Evaluación de la Conformidad”, integrado por Organismo de Certificación, Organismo de Inspección, Servicios Industriales, Laboratorios de Ensayos y…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 269 contacts → | ||||
Partial evidence “Established in 1970 as a federal Crown corporation, the Standards Council of Canada (SCC) is Canada’s voice on standards and accreditation on the national and international stage.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 267 contacts → | ||||
Indirect evidence “NQA is a leading global certification body, respected for providing flexible and supportive certification and training services that are technically advanced and meet the needs of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 256 contacts → | ||||
Partial evidence “National Accreditation Board for Hospitals & Healthcare Providers (NABH) is a constituent board of the Quality Council of India, set up to establish and operate accreditation…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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. | |||||
| 24 | 252 contacts → | ||||
Indirect evidence “TÜV NORD and its testing, inspection, and certification companies make our world safer and are a driving force for global innovation.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 251 contacts → | ||||
Indirect evidence “The Swiss Association for Quality and Management Systems (SQS) is Switzerland's leading organisation for certification and assessment services.” 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 3,362 accreditation bodies worldwide
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Accreditation bodies worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for accreditation bodies are linked below.
- What qualifies
- Companies worldwide 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.
- 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, 13,649 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.
Accreditation bodies by location
20 lists · largest firstEvery Accreditation bodies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Accreditation bodies based in the United States309
- Accreditation bodies based in the United Kingdom195
- Accreditation bodies based in India194
- Accreditation bodies based in Italy193
- Accreditation bodies based in Türkiye160
- Accreditation bodies based in Germany145
- Accreditation bodies based in Mexico133
- Accreditation bodies based in Brazil112
- Accreditation bodies based in Spain104
- Accreditation bodies based in Indonesia94
- Accreditation bodies based in France92
- Accreditation bodies based in Australia79
- Accreditation bodies based in the Netherlands75
- Accreditation bodies based in the United Arab Emirates53
- Accreditation bodies based in Canada52
- Accreditation bodies based in Colombia43
- Accreditation bodies based in Poland41
- Accreditation bodies based in South Africa34
- Accreditation bodies based in Belgium30
- Accreditation bodies based in Switzerland30
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 worldwide?
RevenueBase identified 3,362 accreditation bodies worldwide 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?
TÜV Rheinland Group, headquartered in Cologne, tops this list with the largest team on record.
Which country has the most accreditation bodies?
The United States leads with 309 companies, followed by the United Kingdom (195) and India (194). Every accreditation bodies list by country and city is linked on this page.
Which city has the most accreditation bodies?
London leads with 56 headquartered companies, followed by Istanbul (40) and Madrid (38).
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 13,649 verified decision-maker contacts tracked across these 3,362 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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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.