Company lists · Data refreshed September 2026

Top 25 Conference planning companies worldwide

RevenueBase identified 48,684 conference planning companies worldwide as of September 2026 and tracks 340,807 professional contacts across them, including 75,358 with verified work emails. The United States is the largest market and London the largest hub.

This list covers conference planning companies 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 conference planning companies 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
48,684Companies
340,807Contacts tracked
75,358Verified emails
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The 25 largest conference planning companies worldwide

Ranked by team size
Top 25 of 48,684 conference planning companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to conference planning companies: 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 evidenceSchiller Park, IL, United StatesHQ checked Sep 19, 202610001+8,274 contacts →

Indirect evidence

“Encore is your full-service event production partner with more than 80 years of experience.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceDallas, TX, United StatesHQ checked Sep 19, 20265,001-10,0004,220 contacts →

Indirect evidence

“Freeman is a global leader in events, on a mission to redefine live for a new era.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceLas Vegas, NV, United StatesHQ checked Sep 19, 20261,001-5,0002,619 contacts →

Indirect evidence

“GES is a global full-service provider for the exhibitions industry.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceLyon, FranceHQ checked Sep 19, 20261,001-5,0002,489 contacts →

Indirect evidence

“GL events is an international player in the world of events, with offices and venues in more than 20 countries.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261,001-5,0002,337 contacts →

Indirect evidence

“We all know that as humans, we’re wired to connect – it’s science.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceSan Francisco | Stockholm, United StatesHQ checked Sep 19, 2026n/a1,861 contacts →

Partial evidence

“EVENT ORGANIZERS LLC is an event planning, design, production, management and marketing company with offices in San Francisco and Stockholm, Sweden.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceScottsdale, AZ, United StatesHQ checked Sep 19, 20261,001-5,0001,679 contacts →

Partial 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 19, 2026
8Indirect evidenceBethesda, MD, United StatesHQ checked Sep 19, 20265,001-10,0001,460 contacts →

Indirect evidence

“Bringing people together is what we do best.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceLititz, PA, United StatesHQ checked Sep 19, 20261,001-5,0001,229 contacts →

Indirect evidence

“TAIT is a trusted partner, delivering world-class, audience-centric experiences through continuous innovation.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceBristol, United KingdomHQ checked Sep 19, 2026501-1,0001,051 contacts →

Indirect evidence

“With 30 years of expertise, GDS is your pipeline partner, offering bespoke event services that drive business outcomes.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20261,001-5,000827 contacts →

Indirect evidence

“Helping businesses to connect effortlessly across the globe, through service-led corporate travel, people-focused technology, and award-winning event solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceCourbevoie, FranceHQ checked Sep 19, 20261,001-5,000774 contacts →

Indirect evidence

“The Comexposium Group is one of the leading event organisers worldwide, creating events that bring communities together to discover and explore businesses, passions and interests.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 2026201-500691 contacts →

Indirect evidence

“Let's (re-)connect and talk about your business.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceDe Lier, NetherlandsHQ checked Sep 19, 2026n/a688 contacts →

Indirect evidence

“EVENTS | BAR | SHOP Everything is possible at NON.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceFolsom, CA, United StatesHQ checked Sep 19, 2026501-1,000664 contacts →

Partial evidence

ConferenceDirect is your global partner for meetings and events.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceRho, United StatesHQ checked Sep 19, 2026501-1,000625 contacts →

Indirect evidence

“Fiera Milano is the leading exhibition Group in Italy and one of the top in the world.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceDallas, TX, United StatesHQ checked Sep 19, 2026201-500611 contacts →

Indirect evidence

“INSPIRE creates lasting, memorable experiences.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20265,001-10,000596 contacts →

Indirect evidence

“Inspiring & Iconic Event Venues Across the UK Looking for a memorable venue for your next event?”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceMonterrey, MexicoHQ checked Sep 19, 2026n/a583 contacts →

Indirect evidence

“La Asociación Promotora de Exposiciones A.C.(APEX) tiene experiencia de más de 20 años como organizador ferial, posicionándose en el sector de eventos como la empresa líder en la…”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceMumbai, IndiaHQ checked Sep 19, 2026201-500565 contacts →

Indirect evidence

“Established in 1988, Wizcraft is one of India’s leading Communications & Entertainment Company, integrating strategy, creativity and technology to provide unique experiences.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceDuluth, GA, United StatesHQ checked Sep 19, 2026201-500544 contacts →

Indirect evidence

“At Nth Degree, we don’t merely manage trade shows, exhibits, and events.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceParker, CO, United StatesHQ checked Sep 19, 202651-200516 contacts →

Indirect evidence

“The Event 360 Difference From logistics to execution, coaching to communications, we’re the peer-to-peer fundraising event production company that does it all, so you can focus…”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceSouthbank, AustraliaHQ checked Sep 19, 20261,001-5,000496 contacts →

Indirect evidence

“Spark Event Group is the trusted, go-to partner of savvy event owners and operators.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 19, 2026201-500440 contacts →

Indirect evidence

“For 50+ years, Access has thrived as the industry leader in Destination Management by doing things differently.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceMilan, ItalyHQ checked Sep 19, 2026201-500439 contacts →

Indirect evidence

“AIM Group International is a leading company in the fields of congresses, events, and communication, with over 60 years of experience.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 48,684 conference planning companies worldwide

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Conference planning companies worldwide at a glance

As of Sep 19, 2026
22.1%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
31,363
11-50
13,393
51-200
2,807
201-500
621
501-1,000
144
1,001-5,000
86
5,001-10,000
19
10001+
31

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 conference planning companies, 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 conference planning companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “conference planning companies”. 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 conference planning companies), 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 conference planning companies, 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, 75,358 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.

Conference planning companies by location

162 lists · largest first

Every Conference planning companies 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 conference planning companies, 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 conference planning companies are there worldwide?

RevenueBase identified 48,684 conference planning companies 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?

Encore, headquartered in Schiller Park, tops this list with the largest team on record.

Which country has the most conference planning companies?

The United States leads with 7,403 companies, followed by India (4,158) and France (2,740). Every conference planning companies list by country and city is linked on this page.

Which city has the most conference planning companies?

London leads with 784 headquartered companies, followed by Sao Paulo (701) and Dubai (687).

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 75,358 verified decision-maker contacts tracked across these 48,684 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.