Company lists · Data refreshed September 2026
Top 25 Nonprofit event marketing agencies based in the United States
RevenueBase identified 2,174 nonprofit event marketing agencies headquartered in the United States as of September 2026 and tracks 14,767 professional contacts across them, including 4,416 with verified work emails. New York is the largest hub.
This list covers nonprofit event marketing agencies 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 29, 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.
The 25 largest nonprofit event marketing agencies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 516 contacts → | ||||
Partial evidence “The Event 360 Difference From logistics to execution, coaching to communications, we’re the peer-to-peer fundraising event production company that does it all, so you can focus…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 492 contacts → | ||||
Partial evidence “RKD Group is the trusted growth architect for nonprofits.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 342 contacts → | ||||
Indirect evidence “Our motto says it all: We Help People Who Help People.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 338 contacts → | ||||
Strong evidence “Assist Marketing is a leading nationwide event staffing & marketing services team, dedicated to serving our agency partners, brands and field staff.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 304 contacts → | ||||
Indirect evidence “Media Star Promotions’ agency experience spans more than three decades specializing in brand strategy, but we don’t stop there.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 195 contacts → | ||||
Strong evidence “At Boom, we develop cross-media strategic marketing and public relations for our clients that convince their target audience to solicit their business, attend their event or…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 170 contacts → | ||||
Partial evidence “Masterworks is a marketing and fundraising agency that helps Christian organizations of all shapes and sizes fully accomplish their missions in the world by providing a complete…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 161 contacts → | ||||
Partial evidence “Unbridled is an event management, production, and creative agency delivering intentionally crafted events through our customer-focused approach to creative design, attendee…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 159 contacts → | ||||
Strong evidence “As the nation’s leading agency specializing in event and association marketing, mdg, a Freeman company, delivers results.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 154 contacts → | ||||
Partial evidence “Industry Preferred Experiential Event Staffing & Services Since 1997!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 152 contacts → | ||||
Partial evidence “O'Brien Garrett is a comprehensive fundraising and communications company serving some of the nation's top nonprofits.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 137 contacts → | ||||
Indirect evidence “AGP partners with mission-driven organizations nationwide to strengthen donor engagement and support long-term, sustainable performance.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 126 contacts → | ||||
Partial evidence “Celebrating 25 Years Founded in 1998, The Syndicate is an independent entertainment marketing agency providing full-scale, integrated marketing programs from ideation through…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 113 contacts → | ||||
Strong evidence “Crawford Group is a marketing and events agency built for enterprise and mid-size companies that need to stay agile.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 109 contacts → | ||||
Strong evidence “In business since 1962, The Stelter Company is an integrated marketing agency that provides nonprofits with the insights and strategies needed to optimize revenue across the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 108 contacts → | ||||
Partial evidence “GlobalGiving is a nonprofit that supports other community-led nonprofits by connecting them to donors and companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 105 contacts → | ||||
Partial evidence “Plan B is a full-service, B Corp-certified marketing agency with a talent for pushing boundaries and a passion for positive change.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 97 contacts → | ||||
Strong evidence “August Jackson is a U.S-based event and experience marketing agency that helps communities of purpose engage their most important audiences, moving the mission forward for leading…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 95 contacts → | ||||
Strong evidence “OUR AGENCY: BDI is a full-service, omni-channel, marketing and fundraising agency for nonprofits.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 90 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Indirect evidence “At MarkeTeam, we’ve spent the past 30 years doing good work that does good.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 75 contacts → | ||||
Strong evidence “TRADEMARK is a global marketing agency that brings brands to life through extraordinary events.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 75 contacts → | ||||
Strong evidence “Linder is a trusted global events agency that plans, promotes, and produces impactful experiences for Fortune 100 companies and leading nonprofits worldwide.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 71 contacts → | ||||
Indirect evidence “We believe that connecting buyers to new products needs a personal touch.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 70 contacts → | ||||
Strong evidence “Media Cause is a mission-driven marketing and creative agency that helps nonprofits grow and accelerate their impact.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: nonprofit event marketing agencies. 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 nonprofit event marketing agencies.
- Partial evidence
- Its own public description names part of nonprofit event marketing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nonprofit event marketing agencies. 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 2,174 nonprofit event marketing agencies based in the United States
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Nonprofit event marketing agencies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 2,174 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 nonprofit event marketing agencies, 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 “nonprofit event marketing agencies”. 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 nonprofit event marketing agencies), 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 nonprofit event marketing agencies, 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, 4,416 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 29, 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.
Nonprofit event marketing agencies by metro
- Nonprofit event marketing agencies in New York126
- Nonprofit event marketing agencies in Los Angeles78
- Nonprofit event marketing agencies in Atlanta65
- Nonprofit event marketing agencies in Chicago58
- Nonprofit event marketing agencies in Washington57
- Nonprofit event marketing agencies in Miami39
- Nonprofit event marketing agencies in Austin34
- Nonprofit event marketing agencies in San Diego33
- Nonprofit event marketing agencies in San Francisco32
- Nonprofit event marketing agencies in Denver28
- Nonprofit event marketing agencies in Houston28
- Nonprofit event marketing agencies in Seattle28
- Nonprofit event marketing agencies in Philadelphia25
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 nonprofit event marketing agencies, 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 nonprofit event marketing agencies are there based in the United States?
RevenueBase identified 2,174 nonprofit event marketing agencies 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?
Event 360, headquartered in Parker, tops this list with the largest team on record.
Which city has the most nonprofit event marketing agencies?
New York leads with 126 headquartered companies, followed by Los Angeles (78) and Atlanta (65).
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 4,416 verified decision-maker contacts tracked across these 2,174 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 29, 2026.
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Nonprofit event marketing agencies by geography
- Nonprofit event marketing agencies based in Sydney, Australia
- Nonprofit event marketing agencies based in Sao Paulo, Brazil
- Nonprofit event marketing agencies based in Toronto, Canada
- Nonprofit event marketing agencies based in Paris, France
- Nonprofit event marketing agencies based in Berlin, Germany
- Nonprofit event marketing agencies based in Mumbai, India
- Nonprofit event marketing agencies based in Dubai, United Arab Emirates
- Nonprofit event marketing agencies based in London, United Kingdom
- Nonprofit event marketing agencies based in Atlanta, United States
- Nonprofit event marketing agencies based in Austin, United States
- Nonprofit event marketing agencies based in Chicago, United States
- Nonprofit event marketing agencies based in Denver, United States
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.
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