Company lists · Data refreshed September 2026

Top 25 Business roundtables worldwide

RevenueBase identified 4,550 business roundtables worldwide as of September 2026 and tracks 37,652 professional contacts across them, including 6,580 with verified work emails. The United States is the largest market and London the largest hub.

This list covers business roundtables 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 19, 2026. Country and city lists for business roundtables 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 19, 2026 86% judged on-target in blind review
4,550Companies
37,652Contacts tracked
6,580Verified emails
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The 25 largest business roundtables worldwide

Ranked by team size
Top 25 of 4,550 business roundtables worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to business roundtables: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceVila Velha, BrazilHQ checked Sep 19, 20261,001-5,0001,180 contacts →

Indirect evidence

“Universo SÁ A Sá Cavalcante é um grupo de mais de mil pessoas que acreditam no trabalho responsável e sustentável.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceA Global Organization, United StatesHQ checked Sep 19, 202651-200546 contacts →

Indirect evidence

“REF Global is an international Organization of best-in-class Business Leaders.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 19, 2026501-1,000521 contacts →

Indirect evidence

“Terrapinn events inspire and transform business.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 19, 2026201-500514 contacts →

Indirect evidence

“Leaders of the world’s most respected companies join World 50 Group to learn from one another.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceComuna 13, ArgentinaHQ checked Sep 19, 202651-200472 contacts →

Indirect evidence

“Vistage es La Organización Líder Mundial de CEO´s.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceCalgary, AB, CanadaHQ checked Sep 19, 202651-200287 contacts →

Indirect evidence

“TEC Canada is a member-based leadership development organization of chief executives, entrepreneurs, and business owners.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceOslo, NorwayHQ checked Sep 19, 202651-200273 contacts →

Indirect evidence

“8 av 10 nordmenn har sin arbeidsplass i handels- og tjenestenæringen.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidencePortland, OR, United StatesHQ checked Sep 19, 2026201-500250 contacts →

Indirect evidence

“Evanta is now Gartner C-level Communities.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceBangalore, IndiaHQ checked Sep 19, 202651-200243 contacts →

Indirect evidence

“International Business and Economic Forum - “Elevating Leaders to be Global Players” A country without a good leader is like a boat without a helm.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceMumbai, IndiaHQ checked Sep 19, 202651-200234 contacts →

Indirect evidence

“Founded in 2018, UBS Forums is dedicated to fostering transformational leadership for individuals and industries alike.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceSao Paulo, BrazilHQ checked Sep 19, 2026501-1,000224 contacts →

Indirect evidence

“Somos uma plataforma de relacionamentos exclusiva para C-Levels de empresas que faturam mais de R$100 milhões por ano.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceIndre By, DenmarkHQ checked Sep 19, 20261,001-5,000204 contacts →

Indirect evidence

“Welcome to the page of VL - Danish Management Society.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceMünchen, GermanyHQ checked Sep 19, 202651-200193 contacts →

Indirect evidence

“The BMW Foundation Herbert Quandt unites the brightest minds from business, policy, science and civil society to collaborate on forward-looking approaches and solutions to the…”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSchaumburg, IL, United StatesHQ checked Sep 19, 2026201-500185 contacts →

Indirect evidence

“CXOsync was founded in 2008 By Mr.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceMexico City, MexicoHQ checked Sep 19, 202651-200156 contacts →

Indirect evidence

“American Chamber of Commerce of Mexico, A.C.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceHermosillo, MexicoHQ checked Sep 19, 2026201-500154 contacts →

Indirect evidence

“Nuestro propósito es consolidar un grupo empresarial profesional e institucional que, apoyando a quienes lo integran, innovando con rumbo, explorando oportunidades y disfrutando…”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceSvendborg, DenmarkHQ checked Sep 19, 202651-200134 contacts →

Indirect evidence

“Vi skaber personlig, faglig og forretningsmæssig værdi gennem fortrolige netværk.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 19, 20261,001-5,000131 contacts →

Indirect evidence

“CorporateConnections is a global community of successful business executives who are active in high-performance teams that focus on advanced referral, marketing and networking…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceBerlin, GermanyHQ checked Sep 19, 202651-200131 contacts →

Indirect evidence

“Wer ist der Wirtschaftsrat der CDU e.V?”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceSao Paulo, BrazilHQ checked Sep 19, 202651-200131 contacts →

Indirect evidence

“A maior e mais influente organização de líderes empresariais da América Latina, unindo mais de 2 mil empresas e 4 mil líderes em todo o mundo.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceWindsor, United KingdomHQ checked Sep 19, 2026n/a130 contacts →

Indirect evidence

“The Society of Leadership Fellows is a community of CEOs/Directors limited to 250 members from all industries and sectors of the UK, and also a number of other countries.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceMaringá, BrazilHQ checked Sep 19, 202651-200125 contacts →

Indirect evidence

“O maior poder que uma cidade pode ter é o talento para reunir diferentes ideias, habilidades profissionais e a diversidade empreendedora da comunidade em prol do progresso…”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceVienna, AustriaHQ checked Sep 19, 202651-200124 contacts →

Indirect evidence

“Seit über 30 Jahren ist es unsere Leidenschaft, gemeinsam in regionalen TAB Unternehmerboards Firmen-Lenker:innen dabei zu unterstützen, ihre persönlichen und beruflichen Visionen…”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceHedge End, United KingdomHQ checked Sep 19, 202651-200123 contacts →

Indirect evidence

“However you achieve success, one thing is certain: you’ll get there faster with help.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceBrentwood, TN, IndiaHQ checked Sep 19, 202651-200121 contacts →

Indirect evidence

“Chief Executive Group improves the effectiveness of business leaders and inspires the free market system that fosters innovation, provides opportunity and ensures fairness for all.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 4,550 business roundtables worldwide

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Business roundtables worldwide at a glance

As of Sep 19, 2026
17.5%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
2,677
11-50
1,189
51-200
450
201-500
116
501-1,000
43
1,001-5,000
35
5,001-10,000
11
10001+
28

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 business roundtables, 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 business roundtables are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “business roundtables”. 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 business roundtables), 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 business roundtables, 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, 6,580 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 19, 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.

Business roundtables by location

20 lists · largest first

Every Business roundtables 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 business roundtables, 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 business roundtables are there worldwide?

RevenueBase identified 4,550 business roundtables 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?

SÁ Cavalcante, headquartered in Vila Velha, tops this list with the largest team on record.

Which country has the most business roundtables?

The United States leads with 910 companies, followed by France (503) and the United Kingdom (290). Every business roundtables list by country and city is linked on this page.

Which city has the most business roundtables?

London leads with 122 headquartered companies, followed by New York (65) and Paris (62).

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 6,580 verified decision-maker contacts tracked across these 4,550 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 19, 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.