Company lists · Data refreshed September 2026

Top 25 Event marketing automation platforms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,413 companies tracked

RevenueBase identified 1,413 event marketing automation platforms headquartered in the United States as of September 2026 and tracks 32,098 professional contacts across them, including 11,532 with verified work emails. New York is the largest hub.

This list covers event marketing automation 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

1,413Companies

32,098Contacts tracked

11,532Verified emails

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The 25 largest event marketing automation platforms based in the United States

Ranked by team size

Top 25 of 1,413 event marketing automation platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to event marketing automation platforms: 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	Zeta Global	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,595 contacts →
	Partial evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 28, 2026
2	Intuit Mailchimp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,483 contacts →
	Partial evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 28, 2026
3	Centro	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	1,178 contacts →
	Strong evidence “Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.” Source: RevenueBase Database · checked Sep 28, 2026
4	Demandscience	Partial evidence	Boston, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,087 contacts →
	Partial evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 28, 2026
5	Activecampaign	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	863 contacts →
	Strong evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 28, 2026
6	simpli.fi	Partial evidence	Fort Worth, TX, United StatesHQ checked Sep 28, 2026	501-1,000	680 contacts →
	Partial evidence “Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…” Source: RevenueBase Database · checked Sep 28, 2026
7	Optimove	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	588 contacts →
	Partial evidence “Optimove, the creator of Positionless Marketing, frees marketing teams from the limitations of fixed roles, giving every marketer the power to execute any marketing task instantly…” Source: RevenueBase Database · checked Sep 28, 2026
8	Adobe Marketo	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	572 contacts →
	Partial evidence “Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Source: RevenueBase Database · checked Sep 28, 2026
9	Treasure AI	Strong evidence	Mountain View, CA, United StatesHQ checked Sep 28, 2026	501-1,000	511 contacts →
	Strong evidence “Treasure AI is the Agentic Experience Platform built for modern marketing teams.” Source: RevenueBase Database · checked Sep 28, 2026
10	Momentus Technologies	Partial evidence	St Louis, MO, United StatesHQ checked Sep 28, 2026	201-500	436 contacts →
	Partial evidence “Momentus Technologies is a global provider of industry-leading venue and event management solutions that empower organizations to create extraordinary moments.” Source: RevenueBase Database · checked Sep 28, 2026
11	Rainfocus	Strong evidence	Lehi, UT, United StatesHQ checked Sep 28, 2026	201-500	422 contacts →
	Strong evidence “RainFocus is the next-generation event marketing platform built to capture and analyze unprecedented amounts of first-party data for exceptional events and optimized engagement…” Source: RevenueBase Database · checked Sep 28, 2026
12	AUGEO	Partial evidence	Rochester, NY, United StatesHQ checked Sep 28, 2026	501-1,000	359 contacts →
	Partial evidence “Augeo is a loyalty platform with agentic AI that reads every signal and acts in real time, before the moment passes.” Source: RevenueBase Database · checked Sep 28, 2026
13	Hightouch	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	358 contacts →
	Strong evidence “Hightouch is an Agentic Marketing Platform powered by the industry-leading Composable CDP.” Source: RevenueBase Database · checked Sep 28, 2026
14	Hart Agency	Partial evidence	Melville, NY, United StatesHQ checked Sep 28, 2026	51-200	352 contacts →
	Partial evidence “Hart Agency is redefining how experiential marketing is executed and scaled.” Source: RevenueBase Database · checked Sep 28, 2026
15	Soci, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	501-1,000	338 contacts →
	Indirect evidence “SOCi is the leading CoMarketing Cloud for multi-location enterprises.” Source: RevenueBase Database · checked Sep 28, 2026
16	Partnerize	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	335 contacts →
	Partial evidence “Partnerize is the leader in partnership automation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Tripleseat	Partial evidence	Concord, MA, United StatesHQ checked Sep 28, 2026	201-500	325 contacts →
	Partial evidence “Tripleseat is the leading event management software for venues, built for hospitality by hospitality.” Source: RevenueBase Database · checked Sep 28, 2026
18	Nextroll	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	320 contacts →
	Partial evidence “NextRoll is a leading marketing technology company that empowers businesses to drive sustainable growth while building trusted connections with their audiences.” Source: RevenueBase Database · checked Sep 28, 2026
19	Higher Logic	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	201-500	306 contacts →
	Indirect evidence “Higher Logic is revolutionizing engagement for associations and businesses.” Source: RevenueBase Database · checked Sep 28, 2026
20	Listrak	Strong evidence	Lititz, PA, United StatesHQ checked Sep 28, 2026	201-500	295 contacts →
	Strong evidence “Listrak is the person-first marketing automation platform that seamlessly integrates data, identity, and cross-channel messaging to power hyper-personalized customer experiences.” Source: RevenueBase Database · checked Sep 28, 2026
21	Warrior Plus	Strong evidence	Henderson, NV, United StatesHQ checked Sep 28, 2026	n/a	260 contacts →
	Strong evidence “Best-in-class sales & marketing automation platform and marketplace for digital business owners and online marketers” Source: RevenueBase Database · checked Sep 28, 2026
22	WEB Spiders	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	201-500	250 contacts →
	Partial evidence “Web Spiders (WS) is an enterprise software company that develops products for marketing and HR.” Source: RevenueBase Database · checked Sep 28, 2026
23	Anyroad	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	242 contacts →
	Strong evidence “AnyRoad is the leading experiential marketing platform that enables brands to operate and optimize their events, tours, activations, and classes to grow consumer brand loyalty…” Source: RevenueBase Database · checked Sep 28, 2026
24	WHOVA	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	226 contacts →
	Partial evidence “Whova provides Intelligent Event Technology Solutions by creating authentic audience participation and engagement and simplifying the entire event process from planning to…” Source: RevenueBase Database · checked Sep 28, 2026
25	LASSO	Strong evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	51-200	222 contacts →
	Strong evidence “LASSO is the all-in-one platform where event companies work.” Source: RevenueBase Database · checked Sep 28, 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: event marketing automation platforms. 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 event marketing automation platforms.
Partial evidence: Its own public description names part of event marketing automation platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name event marketing automation platforms. 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 1,413 event marketing automation platforms based in the United States

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Event marketing automation platforms based in the United States at a glance

As of Sep 28, 2026

35.9%Verified-email coverage

22.7Average contacts per company

1-10Median size (employees)

7.4%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

728

11-50

470

51-200

149

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 1,413 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 event marketing automation platforms, 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 “event marketing automation platforms”. 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 event marketing automation platforms), 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 event marketing automation platforms, 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, 11,532 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 28, 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.

Event marketing automation platforms 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 event marketing automation platforms, 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 event marketing automation platforms are there based in the United States?

RevenueBase identified 1,413 event marketing automation platforms 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?

Zeta Global, headquartered in New York, tops this list with the largest team on record.

Which city has the most event marketing automation platforms?

New York leads with 105 headquartered companies, followed by San Francisco (80) and Los Angeles (46).

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 11,532 verified decision-maker contacts tracked across these 1,413 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 28, 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.