Company lists · Data verified August 2026

Top 25 Event registration platforms based in the United States

Name: Event registration platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 632 companies tracked

There are 632 event registration platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 8,538 professional contacts across them, including 3,285 with verified work emails and 2,952 with mobile numbers. New York is the largest hub.

This list covers event registration platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

632Companies

8,538Contacts tracked

3,285Verified emails

2,952Mobile numbers

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The 25 largest event registration platforms based in the United States

Ranked by team size

Top 25 of 632 event registration platforms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Momentus Technologies	St Louis, MO	201-500	434	269
2	Rainfocus	Lehi, UT	201-500	431	299
3	Tripleseat	Concord, MA	201-500	320	190
4	WHOVA	Champaign, IL	51-200	221	28
5	LASSO	Charleston, SC	51-200	211	62
6	Bizzabo	New York, NY	51-200	201	66
7	Ringcentral Events	Belmont, CA	5,001-10,000	167	4
8	Eventsair	Lynwood, WA	51-200	137	91
9	ZUDDL	San Francisco, CA	51-200	133	70
10	BW Events Tech	Chicago, IL	51-200	126	94
11	Livestorm	Woburn, MA	51-200	107	66
12	POSH	New York, NY	51-200	105	47
13	Webconnex	Sacramento, CA	51-200	105	38
14	Race Roster	Sarasota, FL	51-200	98	85
15	Eshow Event Management Solutions	South Barrington, IL	51-200	97	48
16	A2z Events By Personify	Atlanta, GA	201-500	97	7
17	Blackthorn	New York, NY	51-200	93	60
18	EVITE	Los Angeles, CA	51-200	91	53
19	HAKU	Miami, FL	51-200	86	57
20	Eventcombo	Jersey City	51-200	81	34
21	Bravura Technologies	Sarasota, FL	51-200	80	28
22	Livebuzz	New York	51-200	77	42
23	PC Nametag	Verona, WI	51-200	74	43
24	Choose 2 Rent	Miami, FL	51-200	73	42
25	Eventeny	Peachtree Corners, GA	51-200	66	53

Showing 25 of 632 event registration platforms based in the United States

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Event registration platforms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 50 HQs

2,952Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

332

11-50

222

51-200

201-500

1,001-5,000

5,001-10,000

10001+

Event registration platforms by metro

Metro	Companies
Event registration platforms in New York	50
Event registration platforms in Los Angeles	29
Event registration platforms in San Francisco	29
Event registration platforms in Atlanta	17
Event registration platforms in Chicago	15
Event registration platforms in Denver	14
Event registration platforms in Miami	13

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “event registration platforms”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many event registration platforms are there based in the United States?

There are 632 event registration platforms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Momentus Technologies, headquartered in St Louis, tops this list with the largest team on record.

Which city has the most event registration platforms?

New York leads with 50 headquartered companies, followed by Los Angeles (29) and San Francisco (29).

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 3,285 verified decision-maker contacts tracked across these 632 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.