Company lists · Data refreshed September 2026
Top 25 Membership associations worldwide
RevenueBase identified 2,279 membership associations worldwide as of September 2026 and tracks 26,341 professional contacts across them, including 6,759 with verified work emails. The United States is the largest market and London the largest hub.
This list covers membership associations 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 membership associations 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 membership associations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,388 contacts → | ||||
Indirect evidence “At RAC we offer career opportunities that will allow you to give back and make a difference to our members and the WA community.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,215 contacts → | ||||
Partial evidence “At the National Restaurant Association, we strive to help every one of our members build customer loyalty, find financial success and provide rewarding careers in foodservice.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 966 contacts → | ||||
Indirect evidence “The Canadian Organization of Campus Activities, better known by its acronym COCA, repre-sents more than 60 post-secondary institutions from Vancouver to St.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 693 contacts → | ||||
Indirect evidence “The Chamber of Commerce of the United States is the world’s largest business organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 632 contacts → | ||||
Indirect evidence “Doc Servizi unisce tutti coloro che condividono l'amore per l'arte, lo spettacolo, la cultura, il benessere e la conoscenza.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 598 contacts → | ||||
Indirect evidence “Wir sind Wirtschaftsprüfungs, Betreuungs- und Beratungsverband für rund 2.600 Genossenschaften in 14 Bundesländern.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 543 contacts → | ||||
Partial evidence “EDI is a top company in association management, providing professional services for national and international medical, certification, and scientific associations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 528 contacts → | ||||
Indirect evidence “Orgulho em ser associação.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 491 contacts → | ||||
Indirect evidence “PRSA is where communicators stay ahead of what's actually landing on our desks: AI, crisis, misinformation, and reputation management.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 384 contacts → | ||||
Partial evidence “Naylor Association Solutions empowers associations to achieve success through innovative association tools and services for strengthening member engagement and increasing non-dues…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 260 contacts → | ||||
Partial evidence “Founded in Austin, Texas in 1978, Goodwin & Company has become synonymous with best-in-class association management across the Lone Star State.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 224 contacts → | ||||
Partial evidence “Taylor Management Company is an Accredited Association Management Company providing full service property management to over 300 residential community associations throughout New…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 220 contacts → | ||||
Indirect evidence “A Appai é uma Associação sem fins econômicos, fundada em 1986, com 32 anos de história, definida como uma entidade representativa de classe, de utilidade pública (Municipal e…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 181 contacts → | ||||
Strong evidence “Virtual is a top provider of professional services for associations, consortia and other membership-based organizations, delivering tailored management solutions that drive…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 155 contacts → | ||||
Indirect evidence “Mutua Montañesa es una asociación de empresarios sin ánimo de lucro cuyo objetivo es, bajo la tutela del Ministerio de Trabajo, optimizar y agilizar la gestión de determinadas…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 150 contacts → | ||||
Indirect evidence “With a solution to every business problem, Nexstar is a member-owned organization that drives business growth and development through continued education and the sharing of ideas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 144 contacts → | ||||
Partial evidence “ASAE is the essential organization for association management, representing both organizations and individual association professionals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 138 contacts → | ||||
Strong evidence “Founded in 1927, the Club Management Association of America (CMAA) is the largest professional association for managers of membership clubs with 8,700 members throughout the US…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 138 contacts → | ||||
Strong evidence “Associations International is a leading association management company recognized for helping professional and trade associations build membership, promote their missions and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 137 contacts → | ||||
Indirect evidence “Founded in 1960, the Canadian Pension & Benefits Institute is a national, not-for-profit organization that specializes in providing its members with low-cost, industry-related…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 135 contacts → | ||||
Strong evidence “Community Associations Institute (CAI) is an international membership organization dedicated to advancing excellence in the governance, management, and quality of life of…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 123 contacts → | ||||
Partial evidence “Health Association Nova Scotia is a not-for-profit, non-government, member-based association with over 65 years’ experience in providing expertise, shared services, and support.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 118 contacts → | ||||
Partial evidence “Parthenon Management Group is an association management company offering management services to professional medical and scientific societies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 103 contacts → | ||||
Indirect evidence “Celebrity Home Loans was designed for mortgage professionals eager to have an equity stake and a desire to have their voice heard.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 103 contacts → | ||||
Indirect evidence “TJM Forsikring er et dansk forsikringsselskab.” 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: membership associations. 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 membership associations.
- Partial evidence
- Its own public description names part of membership associations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name membership associations. 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 2,279 membership associations worldwide
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Membership associations 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 membership associations, 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 membership associations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “membership associations”. 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 membership associations), 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 membership associations, 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, 6,759 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.
Membership associations by location
10 lists · largest firstEvery Membership associations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Membership associations based in the United States847
- Membership associations based in France139
- Membership associations based in the United Kingdom115
- Membership associations based in Brazil103
- Membership associations based in Canada100
- Membership associations based in Australia78
- Membership associations based in the Netherlands67
- Membership associations based in Germany52
- Membership associations based in Sweden29
- Membership associations based in Belgium27
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 membership associations, 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 membership associations are there worldwide?
RevenueBase identified 2,279 membership associations 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?
RAC WA, headquartered in West Perth, tops this list with the largest team on record.
Which country has the most membership associations?
The United States leads with 847 companies, followed by France (139) and the United Kingdom (115). Every membership associations list by country and city is linked on this page.
Which city has the most membership associations?
London leads with 31 headquartered companies, followed by Paris (31) and Toronto (20).
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 6,759 verified decision-maker contacts tracked across these 2,279 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.