Company lists · Data refreshed September 2026

Top 25 Conference organizers based in the United States

Name: Conference 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 3,153 companies tracked

RevenueBase identified 3,153 conference organizers headquartered in the United States as of September 2026 and tracks 27,718 professional contacts across them, including 8,668 with verified work emails. New York is the largest hub.

This list covers conference 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

3,153Companies

27,718Contacts tracked

8,668Verified emails

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The 25 largest conference organizers based in the United States

Ranked by team size

Top 25 of 3,153 conference 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 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	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
2	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
3	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
4	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
5	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
6	Meetings & Incentives Worldwide, INC	Partial evidence	Caledonia, WI, United StatesHQ checked Sep 19, 2026	201-500	370 contacts →
	Partial evidence “M & IW is a women-owned event agency specializing in planning meetings, conferences, and incentives of all scales worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
7	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
8	Enterprise Events Group	Indirect evidence	San Rafael, CA, United StatesHQ checked Sep 19, 2026	201-500	283 contacts →
	Indirect evidence “Since 1995, Enterprise Events Group (EEG) has done one thing exceptionally well: provide full-service, world-class global event management to Fortune 500 clients.” Source: RevenueBase Database · checked Sep 19, 2026
9	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
10	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
11	Projection	Indirect evidence	Springfield, VA, United StatesHQ checked Sep 19, 2026	51-200	212 contacts →
	Indirect evidence “Projection is a full-service, nationwide event production company serving the meetings and convention industry for over 50 years.” Source: RevenueBase Database · checked Sep 19, 2026
12	Cescaphe	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	201-500	176 contacts →
	Indirect evidence “Cescaphe is an event planning company servicing a boutique collection of unique venues and renowned for its culinary expertise, professionalism and attention to detail.” Source: RevenueBase Database · checked Sep 19, 2026
13	YCC	Partial evidence	Wilmington, NC, United StatesHQ checked Sep 19, 2026	n/a	166 contacts →
	Partial evidence “Your Conference Connection (YCC) offers a kaleidoscope of services to fulfill your organization's conference, association management, and or service-based needs.” Source: RevenueBase Database · checked Sep 19, 2026
14	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
15	Bishop-Mccann	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 19, 2026	51-200	147 contacts →
	Indirect evidence “Bishop-McCann is a leading event planning and management company with a key focus on intensifying our investment in new technologies, exploring out-of-the-box creative, building…” Source: RevenueBase Database · checked Sep 19, 2026
16	Convention Data Services NOW Maritz	Indirect evidence	Bourne, MA, United StatesHQ checked Sep 19, 2026	201-500	146 contacts →
	Indirect evidence “We are now Maritz!” Source: RevenueBase Database · checked Sep 19, 2026
17	Multi Image Group MIG	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 19, 2026	51-200	143 contacts →
	Partial evidence “Multi Image Group (MIG) is a 100% employee-owned event production company specializing in live events, conferences and meetings, creative digital content, and exhibits.” Source: RevenueBase Database · checked Sep 19, 2026
18	Q Center	Indirect evidence	St. Charles, IL, United StatesHQ checked Sep 19, 2026	201-500	136 contacts →
	Indirect evidence “Your place for meetings far beyond the ordinary.” Source: RevenueBase Database · checked Sep 19, 2026
19	Prestige Global Meeting Source	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 2026	51-200	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 19, 2026
20	Frost Productions NEW York & Boston	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	125 contacts →
	Indirect evidence “Frost Productions provides high-end, full-service production solutions to the events market.” Source: RevenueBase Database · checked Sep 19, 2026
21	Alford Media	Indirect evidence	Dfw, TX, United StatesHQ checked Sep 19, 2026	51-200	109 contacts →
	Indirect evidence “At Alford Media, a Freeman Company, we believe every client deserves their moment to shine.” Source: RevenueBase Database · checked Sep 19, 2026
22	Streamlinevents, INC	Indirect evidence	Emeryville, CA, United StatesHQ checked Sep 19, 2026	51-200	108 contacts →
	Indirect evidence “Streamlinevents is a group of experienced professionals who love to create events people actually want to go to.” Source: RevenueBase Database · checked Sep 19, 2026
23	Rafanelli Events	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	105 contacts →
	Indirect evidence “EVERY EVENT BEGINS WITH A STORY.” Source: RevenueBase Database · checked Sep 19, 2026
24	A2z Events By Personify	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	201-500	96 contacts →
	Indirect evidence “A2Z Events provides event professionals with a comprehensive platform built to drive revenue growth and simplify event management.” Source: RevenueBase Database · checked Sep 19, 2026
25	Metroconnections	Partial evidence	Burnsville, MN, United StatesHQ checked Sep 19, 2026	51-200	95 contacts →
	Partial evidence “metroConnections is the go-to can-do company for whatever you need to create an amazing meeting, conference or event.” 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 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 organizers.
Partial evidence: Its own public description names part of conference organizers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 3,153 conference organizers based in the United States

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Conference organizers based in the United States at a glance

As of Sep 19, 2026

31.3%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

4.9%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

2,317

11-50

613

51-200

144

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 3,153 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 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 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 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 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, 8,668 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 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 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 organizers are there based in the United States?

RevenueBase identified 3,153 conference 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?

Helmsbriscoe, headquartered in Scottsdale, tops this list with the largest team on record.

Which city has the most conference organizers?

New York leads with 154 headquartered companies, followed by Chicago (82) and Los Angeles (79).

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 8,668 verified decision-maker contacts tracked across these 3,153 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.