Company lists · Data refreshed September 2026
Top 25 International conference organizers worldwide
RevenueBase identified 5,465 international conference organizers worldwide as of September 2026 and tracks 48,387 professional contacts across them, including 9,435 with verified work emails. The United States is the largest market and London the largest hub.
This list covers international conference organizers 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 international conference organizers 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 international conference organizers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,679 contacts → | ||||
Indirect evidence “HelmsBriscoe streamlines the meeting planning process by managing the time-consuming task of researching, contacting, and evaluating venues for your organization’s events.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 691 contacts → | ||||
Indirect evidence “Let's (re-)connect and talk about your business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 664 contacts → | ||||
Partial evidence “ConferenceDirect is your global partner for meetings and events.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 405 contacts → | ||||
Indirect evidence “At PRA, we don’t just execute-we imagine what’s next.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 357 contacts → | ||||
Indirect evidence “Our Mission To be the world’s leading facilitator of meetings for the global exchange of professional knowledge in medical, scientific, and other professions, based on our core…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 319 contacts → | ||||
Indirect evidence “Possuímos uma equipe especializada capaz de compreender e transformar suas ideias em grandes realizações, proporcionando um evento incrível e lembrado por todos.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 314 contacts → | ||||
Indirect evidence “Wierzymy w potęgę spotkań, dlatego organizujemy je od ponad 100 lat, skupiając ludzi z całego świata.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 280 contacts → | ||||
Indirect evidence “شركة وطنية رائدة بصناعة وإدارة وتنظيم الفعاليات والمؤتمرات، تقدم خدمات متكاملة في إعداد وتنظيم المعارض والمؤتمرات والمهرجانات وفعاليات الشركات، استطاعت خلال فترة العشر سنوات…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 263 contacts → | ||||
Strong evidence “Opal Group organizes premier conferences catered to top executives and decision makers throughout various industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 242 contacts → | ||||
Indirect evidence “ICOM is a globally integrated medical, educational, association, communications and event management Company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 218 contacts → | ||||
Indirect evidence “Entraine’s holistic approach, strategic business activity, world class venues, in depth experience and innovative leadership makes it one of the most important business…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 216 contacts → | ||||
Indirect evidence “PASSION AND COMMITMENT FOR EXCELLENCE Benchmark, founded in by Mr.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 199 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 169 contacts → | ||||
Indirect evidence “Con más de 45 años de experiencia, TISA, Traducciones e Intérpretes S.A.L.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 162 contacts → | ||||
Partial evidence “Generis is a full-service organizer of world-class business summits.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 156 contacts → | ||||
Indirect evidence “The multi-award winning Adelaide Convention Centre enjoys a global reputation for excellence and is consistently ranked among the world's top convention centres.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 145 contacts → | ||||
Indirect evidence “Serenas Group, 2011 yılında GL-Events S.A ile olan birleşmesi ve 20 yılı aşan tecrübesiyle kongre, toplantı ve kurumsal, resmi, diplomatik, kültürel etkinliklerle spor…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 133 contacts → | ||||
Partial evidence “UKi Media & Events is an international specialist event organiser and publishing company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 132 contacts → | ||||
Indirect evidence “Bella Center Copenhagen has the capacity to delegates and is Scandinavia’s largest congress venue with more than 40 years of experience.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 129 contacts → | ||||
Indirect evidence “40 Years of Elevating Events | It’s not just what we do, but how we do it, that makes us stand out in the marketplace.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 126 contacts → | ||||
Partial evidence “Escom Events is a fast growing Business to Business Conference Specialist with a strong committment to deliver innovative and content-rich events to the business community across…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 124 contacts → | ||||
Indirect evidence “OIC Group has established itself as a leader in the organization of events thanks to its competence, reliability and professionalism and, above all, thanks to one special…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 124 contacts → | ||||
Indirect evidence “Maxpo Exhibitions connects businesses that move industries forward.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 123 contacts → | ||||
Indirect evidence “Beacon Events has been a proud global facilitator of intelligence sharing, industry growth, and impactful connections for over 20 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 121 contacts → | ||||
Indirect evidence “4x Award-Shortlisted Best Staffing Agency" Founded in 2019, Xenial began in staffing and has evolved into a full-service creative events partner.” 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: international conference organizers. 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 international conference organizers.
- Partial evidence
- Its own public description names part of international conference organizers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name international conference organizers. 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 5,465 international conference organizers worldwide
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International conference organizers 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 international conference organizers, 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 international conference organizers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “international conference organizers”. 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 international conference organizers), 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 international conference organizers, 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, 9,435 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.
International conference organizers by location
28 lists · largest firstEvery International conference organizers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- International conference organizers based in the United States717
- International conference organizers based in the United Kingdom322
- International conference organizers based in India321
- International conference organizers based in France280
- International conference organizers based in Italy259
- International conference organizers based in Germany158
- International conference organizers based in Spain146
- International conference organizers based in the Netherlands139
- International conference organizers based in Australia133
- International conference organizers based in Brazil124
- International conference organizers based in Canada117
- International conference organizers based in Türkiye115
- International conference organizers based in Saudi Arabia101
- International conference organizers based in the United Arab Emirates95
- International conference organizers based in Mexico94
- International conference organizers based in South Africa79
- International conference organizers based in Poland70
- International conference organizers based in Sweden66
- International conference organizers based in Switzerland62
- International conference organizers based in Belgium48
- International conference organizers based in Malaysia41
- International conference organizers based in Greece40
- International conference organizers based in New Zealand36
- International conference organizers based in Norway36
- International conference organizers based in Portugal36
- International conference organizers based in Israel28
- International conference organizers based in Ireland25
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 international conference organizers, 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 international conference organizers are there worldwide?
RevenueBase identified 5,465 international conference organizers 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?
Helmsbriscoe, headquartered in Scottsdale, tops this list with the largest team on record.
Which country has the most international conference organizers?
The United States leads with 717 companies, followed by the United Kingdom (322) and India (321). Every international conference organizers list by country and city is linked on this page.
Which city has the most international conference organizers?
London leads with 104 headquartered companies, followed by Dubai (54) and Riyadh (47).
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 9,435 verified decision-maker contacts tracked across these 5,465 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.