Company lists · Data refreshed September 2026

Top 25 Conference and convention organizers based in the United States

Name: Conference and convention organizers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,875 companies tracked

RevenueBase identified 1,875 conference and convention organizers headquartered in the United States as of September 2026 and tracks 32,049 professional contacts across them, including 10,681 with verified work emails. New York is the largest hub.

This list covers conference and convention organizers headquartered in the United States, 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

1,875Companies

32,049Contacts tracked

10,681Verified emails

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The 25 largest conference and convention organizers based in the United States

Ranked by team size

Top 25 of 1,875 conference and convention organizers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to conference and convention 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	Freeman Company	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	4,220 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
2	Helmsbriscoe	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	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 19, 2026
3	Gaylord Hotels	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,460 contacts →
	Indirect evidence “Bringing people together is what we do best.” Source: RevenueBase Database · checked Sep 19, 2026
4	IQPC	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,256 contacts →
	Partial evidence “IQPC provides business executives around the world with tailored practical conferences, large scale events, online events and webinars, keeping them up-to-date with industry…” Source: RevenueBase Database · checked Sep 19, 2026
5	Conferencedirect	Partial evidence	Folsom, CA, United StatesHQ checked Sep 19, 2026	501-1,000	664 contacts →
	Partial evidence “ConferenceDirect is your global partner for meetings and events.” Source: RevenueBase Database · checked Sep 19, 2026
6	NTH Degree	Indirect evidence	Duluth, GA, United StatesHQ checked Sep 19, 2026	201-500	544 contacts →
	Indirect evidence “At Nth Degree, we don’t merely manage trade shows, exhibits, and events.” Source: RevenueBase Database · checked Sep 19, 2026
7	Shepard	Indirect evidence	Atlanta, TX, United StatesHQ checked Sep 19, 2026	501-1,000	410 contacts →
	Indirect evidence “Shepard is a nationwide event production company with a rich legacy dating back to 1905.” Source: RevenueBase Database · checked Sep 19, 2026
8	PRA Business Events	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	405 contacts →
	Indirect evidence “At PRA, we don’t just execute-we imagine what’s next.” Source: RevenueBase Database · checked Sep 19, 2026
9	Orange County Convention Center	Partial evidence	Orlando, FL, United StatesHQ checked Sep 19, 2026	501-1,000	384 contacts →
	Partial evidence “The award-winning Orange County Convention Center located in the heart of Orlando's Convention Center District and only fifteen minutes from the Orlando International Airport…” Source: RevenueBase Database · checked Sep 19, 2026
10	Rosen Shingle Creek	Partial evidence	Orlando, FL, United StatesHQ checked Sep 19, 2026	1,001-5,000	355 contacts →
	Partial evidence “Rosen Shingle Creek is Orlando’s largest independently owned full-service convention hotel, set on 255 acres along the headwaters of the Florida Everglades on Universal Boulevard.” Source: RevenueBase Database · checked Sep 19, 2026
11	Fern Expo	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 19, 2026	501-1,000	299 contacts →
	Partial evidence “Fern Exposition & Event Services is a full service exhibition services contractor, providing convention, tradeshow, exposition, and corporate event services throughout the United…” Source: RevenueBase Database · checked Sep 19, 2026
12	Hyatt Regency Chicago	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	298 contacts →
	Indirect evidence “The largest hotel in Chicago, Hyatt Regency Chicago offers square feet of space in a variety of venue types to accommodate any event.” Source: RevenueBase Database · checked Sep 19, 2026
13	Opal Group	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	263 contacts →
	Strong evidence “Opal Group organizes premier conferences catered to top executives and decision makers throughout various industries.” Source: RevenueBase Database · checked Sep 19, 2026
14	Javits Center	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	257 contacts →
	Partial evidence “Javits Center is the busiest convention center in the US, hosting the world's leading conventions, trade shows and special events on Manhattan's West Side.” Source: RevenueBase Database · checked Sep 19, 2026
15	Events Industry Council	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	10001+	249 contacts →
	Partial evidence “The Events Industry Council (EIC)’s more than 30 member organizations represent more than 103,500 individuals and 19,500 firms and properties involved in the meetings, conventions…” Source: RevenueBase Database · checked Sep 19, 2026
16	NEW Orleans Ernest N. Morial Convention Center	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 19, 2026	201-500	238 contacts →
	Indirect evidence “With 1.1 million square feet of contiguous exhibit space, an award winning staff and first class amenities, the New Orleans Ernest N.” Source: RevenueBase Database · checked Sep 19, 2026
17	SAN Diego Convention Center Corporation	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	501-1,000	229 contacts →
	Partial evidence “The purpose of the San Diego Convention Center Corporation is to be the region's premier gathering place for conventions, trade shows, meetings and community events.” Source: RevenueBase Database · checked Sep 19, 2026
18	Clarion Events Inc.	Partial evidence	Shelton, CT, United StatesHQ checked Sep 19, 2026	201-500	221 contacts →
	Partial evidence “Based in Shelton, CT, Clarion Events North America is one of the fastest growing and more diverse event organizers in the United States.” Source: RevenueBase Database · checked Sep 19, 2026
19	Massachusetts Convention Center Authority	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	201-500	221 contacts →
	Partial evidence “The Massachusetts Convention Center Authority owns and oversees the operations of the Boston Convention & Exhibition Center, the Lawn on D, the John B.” Source: RevenueBase Database · checked Sep 19, 2026
20	Etherio	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	51-200	190 contacts →
	Indirect evidence “Etherio is a nationwide association and event management company enabling corporations and professional organizations to create experiences that meld passion and purpose for the…” Source: RevenueBase Database · checked Sep 19, 2026
21	Heritage	Partial evidence	Saint Louis, MO, United StatesHQ checked Sep 19, 2026	501-1,000	176 contacts →
	Partial evidence “HERITAGE is an employee owned industry leading general service exposition contractor with full-service offices nationwide providing convention and event services to exhibitors…” Source: RevenueBase Database · checked Sep 19, 2026
22	Holiday Valley Resort	Partial evidence	Ellicottville, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	167 contacts →
	Partial evidence “Conference Venue and meeting center near Buffalo NY, Cleveland OH All year 'round groups at Holiday Valley have plenty to do and terrific facilities in which to do them!” Source: RevenueBase Database · checked Sep 19, 2026
23	T3 Expo	Partial evidence	Lakeville, MA, United StatesHQ checked Sep 19, 2026	51-200	164 contacts →
	Partial evidence “T3 Expo designs, builds, and operates large-scale event environments for the world's most admired corporations, associations, and independent show organizers.” Source: RevenueBase Database · checked Sep 19, 2026
24	NEW Orleans & Company	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 19, 2026	51-200	161 contacts →
	Indirect evidence “New Orleans & Company knows the city the best and is prepared to be with you every step of the way providing the most helpful information about planning, promoting and conducting…” Source: RevenueBase Database · checked Sep 19, 2026
25	Spargo, INC	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 19, 2026	51-200	156 contacts →
	Indirect evidence “SPARGO, Inc is a full-service event management company providing clients with innovative, attentive management and sales services, nationally and internationally, since 1973.” 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 convention 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 convention organizers.
Partial evidence: Its own public description names part of conference and convention 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 convention 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 1,875 conference and convention organizers based in the United States

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Conference and convention organizers based in the United States at a glance

As of Sep 19, 2026

33.3%Verified-email coverage

17.1Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,164

11-50

451

51-200

167

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,875 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 convention 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 the United States whose own description of what they do matches “conference and convention 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 convention 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 convention organizers, and records with no verified work email. Companies headquartered outside United States 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, 10,681 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 convention organizers by metro

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 convention 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 convention organizers are there based in the United States?

RevenueBase identified 1,875 conference and convention organizers headquartered in the United States 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?

Freeman Company, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most conference and convention organizers?

New York leads with 79 headquartered companies, followed by Atlanta (53) and Las Vegas (48).

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 10,681 verified decision-maker contacts tracked across these 1,875 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.