Company lists · Data refreshed September 2026

Top 25 Conference and trade show organizers based in London, United Kingdom

Name: Conference and trade show organizers based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 263 companies tracked

RevenueBase identified 263 conference and trade show organizers headquartered in London, United Kingdom as of September 2026 and tracks 3,822 professional contacts across them, including 1,351 with verified work emails. London is the largest hub.

This list covers conference and trade show organizers headquartered in London, United Kingdom, 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.

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

263Companies

3,822Contacts tracked

1,351Verified emails

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The 25 largest conference and trade show organizers based in London, United Kingdom

Ranked by team size

Top 25 of 263 conference and trade show organizers based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to conference and trade show organizers: 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	Clarion Events	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	769 contacts →
	Indirect evidence “Clarion Events is the world's largest privately owned event and exhibition organiser, known for our innovative approach, market-leading super brands and digital products.” Source: RevenueBase Database · checked Sep 19, 2026
2	Nineteen Group	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	193 contacts →
	Indirect evidence “Hey, we're Nineteen!” Source: RevenueBase Database · checked Sep 19, 2026
3	Reuters Events	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	10001+	141 contacts →
	Indirect evidence “Reuters Events is part of the Reuters News division of Thomson Reuters.” Source: RevenueBase Database · checked Sep 19, 2026
4	Vostock Capital UK	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	112 contacts →
	Partial evidence “Vostock Capital is an international organiser of industry congresses and conferences that accelerate market growth and help companies find partners, clients, and investment…” Source: RevenueBase Database · checked Sep 19, 2026
5	Kisaco Research	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	101 contacts →
	Indirect evidence “Kisaco Research works with the early adopters and leaders of growth markets in driving their respective industries forward and in providing the right knowledge, learning and…” Source: RevenueBase Database · checked Sep 19, 2026
6	Arena International Events Group	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	98 contacts →
	Indirect evidence “Arena International Events Group provides a comprehensive range of event platforms for multiple industry sectors.” Source: RevenueBase Database · checked Sep 19, 2026
7	Brainlinx	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “WHO WE ARE?” Source: RevenueBase Database · checked Sep 19, 2026
8	Global Insight Conferences	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	72 contacts →
	Partial evidence “Global Insight Conferences produces high-quality business events.” Source: RevenueBase Database · checked Sep 19, 2026
9	Metro Production Group	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	65 contacts →
	Indirect evidence “With equal creative talent and tech knowhow, we make big, bold, innovative events happen for happy clients.” Source: RevenueBase Database · checked Sep 19, 2026
10	LS Events	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	61 contacts →
	Indirect evidence “DELIVERING EVENT EXCELLENCE Founded in 2004, our experienced team operates within a tight framework of clients with whom we share a vision and a common goal of excellence.” Source: RevenueBase Database · checked Sep 19, 2026
11	Worldwide Events	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “Worldwide Events Group We are an innovative, dynamic company that connects the major players in the MICE and luxury travel industries, driving change, dictating trends, and…” Source: RevenueBase Database · checked Sep 19, 2026
12	Commodities People	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	40 contacts →
	Partial evidence “Since 2009, through our series of industry leading business conferences and exhibitions, Commodities People has been proud to support and serve energy and commodity markets across…” Source: RevenueBase Database · checked Sep 19, 2026
13	Tobacco Dock London	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	38 contacts →
	Indirect evidence “A venue as dynamic as the events we host.” Source: RevenueBase Database · checked Sep 19, 2026
14	Alpha Events	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	n/a	34 contacts →
	Partial evidence “Alpha Events is a new division of the largest independent conference organiser in the world, PLS - owners of IQPC and WBR.” Source: RevenueBase Database · checked Sep 19, 2026
15	Uptown Events LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	31 contacts →
	Indirect evidence “Producing Memorable Experiences Globally, One Event at a Time At Uptown Events, we turn your vision into unforgettable events.” Source: RevenueBase Database · checked Sep 19, 2026
16	FC Business Intelligence LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “TORONTO, October 4, 2019 – Thomson Reuters (TSX/NYSE: TRI) today announced that it has acquired FC Business Intelligence (FCBI), a global business-to-business events specialist.” Source: RevenueBase Database · checked Sep 19, 2026
17	MA Exhibitions	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “MA Exhibitions was established in 2015 to house the Mark Allen Group’s growing portfolio of exhibitions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Benchmark Collective	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	23 contacts →
	Indirect evidence “Setting the Benchmark.Benchmark truly understand clients need, utilising years of experience in the events and exhibition field in order to deliver affordable, quality, excellent…” Source: RevenueBase Database · checked Sep 19, 2026
19	Visual Response	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Global events agency delivering world-class events since 1991.” Source: RevenueBase Database · checked Sep 19, 2026
20	Event Connections	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “As leaders in our field with 15+ years’ experience, we are more than an event technology company - we fully support all of our solutions so you get the best possible service…” Source: RevenueBase Database · checked Sep 19, 2026
21	International Live Music Conference Ilmc	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “The International Live Music Conference (ILMC) is the leading annual gathering of professionals involved in the global touring, festival and live entertainment industries.” Source: RevenueBase Database · checked Sep 19, 2026
22	20-20 Events Management LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	18 contacts →
	Indirect evidence “Events Management company specialising in Operations, Logisitics, Health & Safety, Site Management and Floor Management.” Source: RevenueBase Database · checked Sep 19, 2026
23	Savant Events	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “We’re proud to offer one of Europe’s leading e-commerce boutique event services.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sachs Associates	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Sachs Associates is a long established international conference company with offices in Switzerland and the UK.” Source: RevenueBase Database · checked Sep 19, 2026
25	Profile Productions	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Profile was established in 1986 to specialise in the production of conferences and exhibitions in social, healthcare and related areas, working predominantly with membership…” Source: RevenueBase Database · checked Sep 19, 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: conference and trade show 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 conference and trade show organizers.
Partial evidence: Its own public description names part of conference and trade show organizers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name conference and trade show 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 263 conference and trade show organizers based in London, United Kingdom

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Conference and trade show organizers based in London, United Kingdom at a glance

As of Sep 19, 2026

35.3%Verified-email coverage

14.5Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

160

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 263 companies.

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 and trade show 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.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “conference and trade show 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 conference and trade show 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 conference and trade show organizers, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
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, 1,351 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 and trade show organizers by metro in the United Kingdom

Conference and trade show organizers in London263
Conference and trade show organizers in Bristol29
Conference and trade show organizers in Manchester25

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 and trade show 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 conference and trade show organizers are there based in London, United Kingdom?

RevenueBase identified 263 conference and trade show organizers headquartered in London, United Kingdom 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?

Clarion Events, headquartered in London, tops this list with the largest team on record.

Which city has the most conference and trade show organizers?

London leads with 263 headquartered companies, followed by Bristol (29) and Manchester (25).

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 1,351 verified decision-maker contacts tracked across these 263 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.