Company lists · Data refreshed September 2026

Top 25 Association consultants worldwide

Name: Association consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 13,452 companies tracked

RevenueBase identified 13,452 association consultants worldwide as of September 2026 and tracks 115,715 professional contacts across them, including 32,225 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers association consultants 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 association consultants 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

13,452Companies

115,715Contacts tracked

32,225Verified emails

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The 25 largest association consultants worldwide

Ranked by team size

Top 25 of 13,452 association consultants worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to association consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Milliman	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,350 contacts →
	Indirect evidence “Milliman is among the world’s largest independent actuarial and consulting firms.” Source: RevenueBase Database · checked Sep 21, 2026
2	Cornerstone Research	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	1,248 contacts →
	Indirect evidence “At Cornerstone Research, we attribute our success to a unique combination of resources: a creative and energetic staff, cutting-edge technology and research, and our work with…” Source: RevenueBase Database · checked Sep 21, 2026
3	Holmes Murphy	Indirect evidence	Waukee, IA, United StatesHQ checked Sep 21, 2026	501-1,000	1,171 contacts →
	Indirect evidence “Independence isn’t just our structure, it’s our mindset.” Source: RevenueBase Database · checked Sep 21, 2026
4	SEGAL	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,149 contacts →
	Indirect evidence “Segal is a leading employee-owned consulting firm with more than 1,100 professionals across North America, including 150+ credentialed actuaries.” Source: RevenueBase Database · checked Sep 21, 2026
5	Smithbucklin	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	720 contacts →
	Partial evidence “Associations help industries, fields and professions stay current and connected for the members and communities who depend on them.” Source: RevenueBase Database · checked Sep 21, 2026
6	ERG	Indirect evidence	Concord, MA, United StatesHQ checked Sep 21, 2026	501-1,000	663 contacts →
	Indirect evidence “ERG is a multidisciplinary consulting firm offering a broad range of professional services.” Source: RevenueBase Database · checked Sep 21, 2026
7	Groupe Cogedis	Indirect evidence	Saint Thonan, FranceHQ checked Sep 21, 2026	501-1,000	654 contacts →
	Indirect evidence “Le Groupe Cogedis est un groupe multi-expertises avec plus de 25 compétences et sociétés partenaires au service des professionnels et des agriculteurs.” Source: RevenueBase Database · checked Sep 21, 2026
8	Vitanuova Previdenza & Protezione	Indirect evidence	Verona, ItalyHQ checked Sep 21, 2026	1,001-5,000	604 contacts →
	Indirect evidence “Vitanuova Previdenza & Protezione è un primario broker assicurativo fondato nel 2015 e diventato Società Per Azioni dal 2020.” Source: RevenueBase Database · checked Sep 21, 2026
9	GSA National	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 21, 2026	201-500	558 contacts →
	Indirect evidence “GSA National has been helping government contractors ensure compliance and streamline costs since 1991.” Source: RevenueBase Database · checked Sep 21, 2026
10	Professional	Partial evidence	Milan, ItalyHQ checked Sep 21, 2026	n/a	535 contacts →
	Partial evidence “Consultant Corporate Governance and Project Management.” Source: RevenueBase Database · checked Sep 21, 2026
11	Norsys	Indirect evidence	Ennevelin, FranceHQ checked Sep 21, 2026	501-1,000	528 contacts →
	Indirect evidence “La vision du groupe norsys : développer une performance globale de l’entreprise.” Source: RevenueBase Database · checked Sep 21, 2026
12	Implid	Indirect evidence	Lyon, FranceHQ checked Sep 21, 2026	501-1,000	502 contacts →
	Indirect evidence “Depuis plus de 40 ans, nos équipes de spécialistes accompagnent nos clients de petites, moyennes et grandes entreprises, dans le pilotage de leurs organisations, la gestion des…” Source: RevenueBase Database · checked Sep 21, 2026
13	Prager Metis Cpas	Indirect evidence	New York, United StatesHQ checked Sep 21, 2026	201-500	467 contacts →
	Indirect evidence “Prager Metis CPAs is an independent, full service, public accounting and consulting firm.” Source: RevenueBase Database · checked Sep 21, 2026
14	USI Consulting Group	Indirect evidence	Glastonbury, CT, United StatesHQ checked Sep 21, 2026	501-1,000	453 contacts →
	Indirect evidence “USI Consulting Group (USICG), an industry leading, full-service retirement plan consulting and benefits administration firm, has been helping employers enable their workforce to…” Source: RevenueBase Database · checked Sep 21, 2026
15	Demarco	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 21, 2026	201-500	452 contacts →
	Indirect evidence “Since 2004, we have helped companies solve their challenges in People, Management, Security and Trade Union Relations, delivering world-class results.” Source: RevenueBase Database · checked Sep 21, 2026
16	Deloitte Consulting	Indirect evidence	Milan, ItalyHQ checked Sep 21, 2026	10001+	406 contacts →
	Indirect evidence “Deloitte è tra le più grandi realtà nei servizi professionali alle imprese in Italia, dove è presente da circa 100 anni.” Source: RevenueBase Database · checked Sep 21, 2026
17	Eckler Ltd. Eckler Ltée	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	201-500	396 contacts →
	Indirect evidence “At Eckler, we help organizations make confident decisions about risk and financial security.” Source: RevenueBase Database · checked Sep 21, 2026
18	Mercer UK	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	10001+	329 contacts →
	Indirect evidence “At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Source: RevenueBase Database · checked Sep 21, 2026
19	Johnson Lambert LLP	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	201-500	326 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
20	Kreston BSG México	Indirect evidence	MexicoHQ checked Sep 21, 2026	201-500	322 contacts →
	Indirect evidence “Bienvenidos a Kreston BSG."Knowing you" Somos una firma de consultoría multidisciplinaria que brinda soluciones integrales mediante la sinergia de un equipo de expertos en el área…” Source: RevenueBase Database · checked Sep 21, 2026
21	Gibson	Partial evidence	South Bend, IN, United StatesHQ checked Sep 21, 2026	51-200	312 contacts →
	Partial evidence “Gibson is a firm of advisors and consultants that help clients get to the proactive side of insurance.” Source: RevenueBase Database · checked Sep 21, 2026
22	Business Benefits Group BBG	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 21, 2026	51-200	311 contacts →
	Indirect evidence “The Business Benefits Group, a Division of Patriot Growth Insurance Services is a large, full-service benefits and insurance brokerage.” Source: RevenueBase Database · checked Sep 21, 2026
23	FAR	Indirect evidence	Stockholm, SwedenHQ checked Sep 21, 2026	51-200	301 contacts →
	Indirect evidence “FAR är branschorganisation för redovisningskonsulter, revisorer och rådgivare.” Source: RevenueBase Database · checked Sep 21, 2026
24	MRA	Partial evidence	Waukesha, WI, United StatesHQ checked Sep 21, 2026	201-500	290 contacts →
	Partial evidence “Founded in 1901, MRA is a nonprofit employer association that serves more than employers, covering more than 1 million employees worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
25	CTE	Partial evidence	São Paulo, BrazilHQ checked Sep 21, 2026	51-200	288 contacts →
	Partial evidence “CTE is a consulting company, which has 28 years of experience in the Construction Industry, offering clients consultancy across a wide range of service nable Projects and Green…” Source: RevenueBase Database · checked Sep 21, 2026

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: association consultants. 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 association consultants.
Partial evidence: Its own public description names part of association consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name association consultants. 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 13,452 association consultants worldwide

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Association consultants worldwide at a glance

As of Sep 21, 2026

27.8%Verified-email coverage

8.6Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

9,100

11-50

3,400

51-200

667

201-500

142

501-1,000

1,001-5,000

5,001-10,000

10001+

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 association consultants, 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 association consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “association consultants”. 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 association consultants), 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 association consultants, 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, 32,225 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.

Association consultants by location

60 lists · largest first

Every Association consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 association consultants, 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 association consultants are there worldwide?

RevenueBase identified 13,452 association consultants 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?

Milliman, headquartered in Seattle, tops this list with the largest team on record.

Which country has the most association consultants?

The United States leads with 3,244 companies, followed by Brazil (966) and Italy (851). Every association consultants list by country and city is linked on this page.

Which city has the most association consultants?

Sao Paulo leads with 277 headquartered companies, followed by Paris (204) and London (128).

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 32,225 verified decision-maker contacts tracked across these 13,452 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.