Company lists · Data refreshed September 2026
Top 25 Professional certification organizations worldwide
RevenueBase identified 869 professional certification organizations worldwide as of September 2026 and tracks 13,235 professional contacts across them, including 2,412 with verified work emails. The United States is the largest market and London the largest hub.
This list covers professional certification organizations 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 20, 2026. Country and city lists for professional certification organizations 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 professional certification organizations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,105 contacts → | ||||
Indirect evidence “Prometric is a global leader in credentialing and skills development.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 958 contacts → | ||||
Indirect evidence “gevestigd in Amsterdam, en we hebben één krachtig doel: het versterken van het vertrouwen van de consument in de financiële sector.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 847 contacts → | ||||
Partial evidence “ISC2 is the world’s leading member organisation for cybersecurity professionals, driven by our vision of a safe and secure cyber world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 693 contacts → | ||||
Partial evidence “Colibri Group is building the future of professional education by empowering professionals to achieve more, adapt, and thrive in their careers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 308 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 198 contacts → | ||||
Partial evidence “The Learning Center is a 30 year organization specializing in Information Technology training and certification.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 184 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 163 contacts → | ||||
Partial evidence “With a reputation for excellence built on more than 50 years as an EHS leader, BCSP certifies the technical competency of safety professionals and equips you for the critical work…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 138 contacts → | ||||
Partial evidence “Amtivo Group provides expert certification services for ISO standards, as well as training and related services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 132 contacts → | ||||
Strong evidence “APMG International is a leading provider of professional certifications and best practice solutions which are available as self-study exams through APMG, or as training courses…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 127 contacts → | ||||
Indirect evidence “IAF - Interessengemeinschaft Ausbildung im Finanzbereich Die IAF Interessengemeinschaft für Ausbildung im Finanzbereich ist eine vom Staatssekretariat für Bildung, Forschung und…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 120 contacts → | ||||
Indirect evidence “Sistema Nacional de Certificación de Competencias Laborales.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 115 contacts → | ||||
Partial evidence “The National Board for Certified Counselors (NBCC) is a not-for-profit, independent certification organization whose primary purposes are to establish and monitor a national…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 106 contacts → | ||||
Partial evidence “Lindenhaeghe is een opleidings- en exameninstituut voor financieel professionals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 98 contacts → | ||||
Indirect evidence “Agencia de Certificación Española.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 98 contacts → | ||||
Indirect evidence “AAFM India is the Indian chapter of the American Academy of Financial Management (GAFM Board of Standards, USA)-a globally stewarded standard in financial education.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 94 contacts → | ||||
Indirect evidence “La AMIB es un organismo de representación empresarial y autorregulatorio, supervisado por la CNBV, que tiene dentro de sus funciones certificar los conocimientos que deberán tener…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 88 contacts → | ||||
Strong evidence “Holmes Corporation (HC) develops and delivers exceptional educational products to serve individuals worldwide seeking professional credentials and certifications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 85 contacts → | ||||
Indirect evidence “Do you feel under recognised and underappreciated?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 85 contacts → | ||||
Strong evidence “The Global Skill Development Council (GSDC) is a professional certification body offering GSDC accredited certifications that empower individuals, institutions, and enterprises…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Indirect evidence “Alanında profesyonel ve yetkin kişiler tarafından kurulmuş olan,"Eğitim ve Eğitmenlerin Kalitesi" ilkesiyle yola çıkmış, sertifikasyon için geçerli olan eğitimleri, uluslararası…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 78 contacts → | ||||
Partial evidence “ICPF certifie les professionnels personnes physiques, de la formation, du conseil et les prestataires d'action concourant au développement des compétences.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 60 contacts → | ||||
Indirect evidence “Lembaga Sertifikasi Profesi Pasar Modal (LSPPM) adalah lembaga pelaksana kegiatan sertifikasi kompetensi kerja di bidang Pasar Modal yang didirikan oleh asosiasi profesi di bidang…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 58 contacts → | ||||
Partial evidence “CIBV, voorheen bekend als LPCB Nederland, is een certificatie-instelling voor beveiliging en veiligheid.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 56 contacts → | ||||
Indirect evidence “LSP GeTI sudah terdaftar kedalam Lisensi Standard BNSP, yang mana ketika anda mendaftar sertifikasi di GETI maka sertifikat yang akan anda dapatkan sudah diakui oleh BNSP.” Source: RevenueBase Database · checked Sep 20, 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: professional certification organizations. 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 professional certification organizations.
- Partial evidence
- Its own public description names part of professional certification organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional certification organizations. 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 869 professional certification organizations worldwide
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Professional certification organizations worldwide at a glance
As of Sep 20, 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 professional certification organizations, 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 professional certification organizations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “professional certification organizations”. 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 professional certification organizations), 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 professional certification organizations, 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, 2,412 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 20, 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.
Professional certification organizations by location
6 lists · largest firstEvery Professional certification organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Professional certification organizations based in the United States148
- Professional certification organizations based in India48
- Professional certification organizations based in Italy36
- Professional certification organizations based in the Netherlands27
- Professional certification organizations based in the United Kingdom27
- Professional certification organizations based in France26
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 professional certification organizations, 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 professional certification organizations are there worldwide?
RevenueBase identified 869 professional certification organizations 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?
Prometric, headquartered in White Marsh, tops this list with the largest team on record.
Which country has the most professional certification organizations?
The United States leads with 148 companies, followed by India (48) and Italy (36). Every professional certification organizations list by country and city is linked on this page.
Which city has the most professional certification organizations?
London leads with 13 headquartered companies, followed by Istanbul (12) and Jakarta (10).
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 2,412 verified decision-maker contacts tracked across these 869 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 20, 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.