Company lists · Data refreshed September 2026

Top 25 Association consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 30,104 companies tracked

RevenueBase identified 30,104 association consulting firms worldwide as of September 2026 and tracks 336,109 professional contacts across them, including 99,881 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers association consulting firms 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 consulting firms 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

30,104Companies

336,109Contacts tracked

99,881Verified emails

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The 25 largest association consulting firms worldwide

Ranked by team size

Top 25 of 30,104 association consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to association consulting firms: 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	Protiviti	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 21, 2026	5,001-10,000	8,779 contacts →
	Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 21, 2026
2	Kearney	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	5,001-10,000	6,978 contacts →
	Partial evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 21, 2026
3	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	4,468 contacts →
	Partial evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 21, 2026
4	BECA	Indirect evidence	Auckland, New ZealandHQ checked Sep 21, 2026	1,001-5,000	4,268 contacts →
	Indirect evidence “Creative people together transforming the world is our vision.” Source: RevenueBase Database · checked Sep 21, 2026
5	Eisneramper	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,199 contacts →
	Partial evidence “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Source: RevenueBase Database · checked Sep 21, 2026
6	Rider Levett Bucknall RLB	Indirect evidence	Sydney, United KingdomHQ checked Sep 21, 2026	1,001-5,000	3,299 contacts →
	Indirect evidence “RLB.” Source: RevenueBase Database · checked Sep 21, 2026
7	Rydge Conseil	Indirect evidence	United StatesHQ checked Sep 21, 2026	1,001-5,000	2,671 contacts →
	Indirect evidence “Né en 2025, RYDGE Conseil est le cabinet de conseil aux Entrepreneurs leader en France.” Source: RevenueBase Database · checked Sep 21, 2026
8	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: RevenueBase Database · checked Sep 21, 2026
9	Arthur D. Little	Indirect evidence	Brussels, BelgiumHQ checked Sep 21, 2026	1,001-5,000	2,186 contacts →
	Indirect evidence “As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.” Source: RevenueBase Database · checked Sep 21, 2026
10	Baringa	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	2,179 contacts →
	Partial evidence “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Source: RevenueBase Database · checked Sep 21, 2026
11	Uhy-Us	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,035 contacts →
	Partial evidence “UHY is one of the nation’s largest professional services firms providing audit, tax, consulting and advisory services to clients primarily in the dynamic middle market.” Source: RevenueBase Database · checked Sep 21, 2026
12	J.S. Held LLC	Indirect evidence	Jericho, NY, PalestineHQ checked Sep 21, 2026	1,001-5,000	1,954 contacts →
	Indirect evidence “J.S.” Source: RevenueBase Database · checked Sep 21, 2026
13	BDO Brazil	Indirect evidence	Sp, BrazilHQ checked Sep 21, 2026	1,001-5,000	1,791 contacts →
	Indirect evidence “Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.” Source: RevenueBase Database · checked Sep 21, 2026
14	Sikich	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,688 contacts →
	Partial evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 21, 2026
15	Abylsen	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1,001-5,000	1,577 contacts →
	Indirect evidence “In a world that too often follows currents, Abylsen has been opening itself up to new directions.” Source: RevenueBase Database · checked Sep 21, 2026
16	Charles River Associates	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,479 contacts →
	Partial evidence “Charles River Associates (CRA) is a global consulting firm specializing in litigation, regulatory, financial, and management consulting.” Source: RevenueBase Database · checked Sep 21, 2026
17	RSM Ebner Stolz	Indirect evidence	Stuttgart, GermanyHQ checked Sep 21, 2026	1,001-5,000	1,442 contacts →
	Indirect evidence “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Source: RevenueBase Database · checked Sep 21, 2026
18	Kpmgジャパン/kpmg Japan	Indirect evidence	千代田区, JapanHQ checked Sep 21, 2026	5,001-10,000	1,419 contacts →
	Indirect evidence “KPMGKPMG310 KPMG KPMG KPMG KPMG KPMG FAS KPMG Forensic & Risk Advisory KPMG KPMG KPMG KPMG Ignition Tokyo KPMG” Source: RevenueBase Database · checked Sep 21, 2026
19	EXL Services LTD	Indirect evidence	n/a	n/a	1,373 contacts →
	Indirect evidence “Established in 1994, we provide a blend of business strategy, marketing services, behavioural change and executive coaching services and techniques to help grow the business of…” Source: RevenueBase Database · checked Sep 21, 2026
20	IPE Global Limited	Indirect evidence	New Delhi, IndiaHQ checked Sep 21, 2026	501-1,000	1,322 contacts →
	Indirect evidence “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Source: RevenueBase Database · checked Sep 21, 2026
21	Intellera Consulting	Partial evidence	Milan, ItalyHQ checked Sep 21, 2026	1,001-5,000	1,304 contacts →
	Partial evidence “Intellera Consulting is a consulting company born from the buyout management of the PwC Public administration and Healthcare branch.” Source: RevenueBase Database · checked Sep 21, 2026
22	Mallette	Indirect evidence	Québec, QC, CanadaHQ checked Sep 21, 2026	1,001-5,000	1,268 contacts →
	Indirect evidence “Mallette compte plus de 40 bureaux solidement implantés dans plusieurs régions du Québec et regroupe plus de 1 600 ressources œuvrant dans différents secteurs d’activité.” Source: RevenueBase Database · checked Sep 21, 2026
23	Ardurra	Indirect evidence	Miami, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,260 contacts →
	Indirect evidence “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Source: RevenueBase Database · checked Sep 21, 2026
24	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
25	Riveron	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,160 contacts →
	Indirect evidence “With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.” 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 consulting firms. 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 consulting firms.
Partial evidence: Its own public description names part of association consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name association consulting firms. 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 30,104 association consulting firms worldwide

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Association consulting firms worldwide at a glance

As of Sep 21, 2026

29.7%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

19,278

11-50

8,477

51-200

1,679

201-500

348

501-1,000

1,001-5,000

111

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 consulting firms, 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 consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “association consulting firms”. 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 consulting firms), 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 consulting firms, 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, 99,881 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 consulting firms by location

128 lists · largest first

Every Association consulting firms 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 consulting firms, 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 consulting firms are there worldwide?

RevenueBase identified 30,104 association consulting firms 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?

Protiviti, headquartered in Menlo Park, tops this list with the largest team on record.

Which country has the most association consulting firms?

The United States leads with 5,946 companies, followed by Brazil (2,058) and France (1,603). Every association consulting firms list by country and city is linked on this page.

Which city has the most association consulting firms?

Sao Paulo leads with 532 headquartered companies, followed by Paris (446) and London (322).

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 99,881 verified decision-maker contacts tracked across these 30,104 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.