Company lists · Data refreshed September 2026
Top 25 Regulated professional practices worldwide
RevenueBase identified 167 regulated professional practices worldwide as of September 2026 and tracks 1,691 professional contacts across them, including 335 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers regulated professional practices 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 21, 2026. Country and city lists for regulated professional practices 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 regulated professional practices worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 88 contacts → | ||||
Partial evidence “IAS accredits a wide range of companies and organizations including governmental entities, academia, commercial businesses, and professional associations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 62 contacts → | ||||
Partial evidence “ReSource Pro Compliance is a national provider of licensing and compliance solutions for insurance organizations and professionals.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 56 contacts → | ||||
Indirect evidence “Liaison Bank, a trusted vendor of Mahanagar Gas Limited, specializes in comprehensive Licensing and Liaisoning services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 54 contacts → | ||||
Partial evidence “Capitol Hill Management Services is a comprehensive consulting firm providing a full range of professional services to associations, non-profits, licensing boards, government…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 46 contacts → | ||||
Indirect evidence “Started in 2004, Affiliated Monitors was the first company in the United States to focus on providing top-quality, independent integrity monitoring services across a wide range of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 40 contacts → | ||||
Indirect evidence “Drummond is a leading and trusted compliance, conformance, and standards certification, testing, and validation services provider.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 31 contacts → | ||||
Partial evidence “REAL Solutions Group (RSG) is a comprehensive regulatory compliance firm offering a full suite of services, including government relations, licensing (initial license…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 contacts → | ||||
Indirect evidence “A empresa A4Quality Services - Auditoria e Certificação Ltda é uma empresa privada, dedicada a prestação de serviços de acreditação de Operadoras de Planos de Saúde especialmente…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 contacts → | ||||
Partial evidence “Wij zijn een certificerende instelling dat zich richt op certificering en auditing van professionele, kennisintensieve dienstverlenende organisaties.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Indirect evidence “CEU Institute is a national CE/CLE/CPE services administrator.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Strong evidence “The Compliance Institute Southern Africa is the recognised, independent Professional Body for the Compliance Profession and endeavours to set, maintain and promote best practice…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Indirect evidence “Medical Licensure Group sets the industry standard in nationwide medical licensing and credentialing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Partial evidence “Opera Professioni s.r.l.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Partial evidence “Protection Trade è un’azienda leader in Italia nel campo dei servizi e delle consulenze professionali in materia di 231/01, Sicurezza sul lavoro, Ambiente, Privacy, Qualità e…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence “Safety Plus, LLC is a family-owned and operated company as well as a WBENC-certified, woman owned business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Indirect evidence “Na Cetri Regularizações, compreendemos que cada atividade profissional requer o devido licenciamento para operar de forma plena e legal.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Partial evidence “Solutions Team Limited is New Zealand’s largest private regulatory company, supporting the building and construction sector with expert compliance and inspection services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Partial evidence “PHC has been providing healthcare accreditation, regulatory compliance and patient safety consulting services to prominent health care organizations both domestically and abroad…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Partial evidence “Courtemanche & Associates, a division of SAYAS Alliance, are Healthcare Accreditation and Regulatory Compliance experts.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Indirect evidence “Medical Credentialing for Physicians and Healthcare Practitioners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “Law Enforcement Accreditation Services LLC provides consulting services to law enforcement agencies in Pennsylvania in order to assist them in obtaining and maintaining…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “Regulation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Partial evidence “Provide support for insurance licensing and regulatory compliance to our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence “Licensing and accreditation management software for government agencies, boards and accreditors that includes integrated workflow automation, document management, dynamic…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “We don’t just prepare you for DOH, AHCA or accreditation inspections.” Source: RevenueBase Database · checked Sep 21, 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: regulated professional practices. 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 regulated professional practices.
- Partial evidence
- Its own public description names part of regulated professional practices, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name regulated professional practices. 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 167 regulated professional practices worldwide
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Regulated professional practices worldwide at a glance
As of Sep 21, 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 regulated professional practices, 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 regulated professional practices are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “regulated professional practices”. 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 regulated professional practices), 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 regulated professional practices, 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, 335 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 21, 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.
Regulated professional practices by location
1 lists · largest firstEvery Regulated professional practices list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 regulated professional practices, 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 regulated professional practices are there worldwide?
RevenueBase identified 167 regulated professional practices 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?
International Accreditation Service, Inc. IAS, headquartered in Brea, tops this list with the largest team on record.
Which country has the most regulated professional practices?
The United States leads with 46 companies. Every regulated professional practices list by country and city is linked on this page.
Which city has the most regulated professional practices?
Sao Paulo leads with 6 headquartered companies, followed by Ahmedabad (2) and Albany (2).
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 335 verified decision-maker contacts tracked across these 167 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 21, 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.