Company lists · Data refreshed September 2026

Top 25 Nonprofit event marketing agencies worldwide

RevenueBase identified 6,032 nonprofit event marketing agencies worldwide as of September 2026 and tracks 33,987 professional contacts across them, including 7,711 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers nonprofit event marketing agencies worldwide, 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. Country and city lists for nonprofit event marketing agencies follow the table.

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 29, 2026 86% judged on-target in blind review
6,032Companies
33,987Contacts tracked
7,711Verified emails
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The 25 largest nonprofit event marketing agencies worldwide

Ranked by team size
Top 25 of 6,032 nonprofit event marketing agencies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit event marketing agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceParker, CO, United StatesHQ checked Sep 29, 202651-200516 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, 2026
2Partial evidencePlano, TX, United StatesHQ checked Sep 29, 2026201-500492 contacts →

Partial evidence

“RKD Group is the trusted growth architect for nonprofits.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceCherry Hill, NJ, United StatesHQ checked Sep 29, 20261,001-5,000342 contacts →

Indirect evidence

“Our motto says it all: We Help People Who Help People.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceMenomonee Falls, WI, United StatesHQ checked Sep 29, 20265,001-10,000338 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, 2026
5Indirect evidenceHunt Valley, MD, United StatesHQ checked Sep 29, 2026501-1,000304 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, 2026
6Partial evidenceKuala Lumpur Sentral, MalaysiaHQ checked Sep 29, 2026501-1,000242 contacts →

Partial evidence

“Omniraise is a new marketing and fundraising agency working for some of the most high profile, blue-chip global NGOs across Asia.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceWindsor, United KingdomHQ checked Sep 29, 2026n/a241 contacts →

Partial evidence

“Welcome to Ice, The Brand Experience Agency that is redefining the landscape of event management.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceMumbai, IndiaHQ checked Sep 29, 202651-200214 contacts →

Indirect evidence

“Transforming Experiences, Empowering Brands!”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceUnited StatesHQ checked Sep 29, 2026501-1,000197 contacts →

Partial evidence

“Nonprofit Organizations count on The Heritage Company for fundraising and outreach to donors, members and other constituents.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceChagrin Falls, United StatesHQ checked Sep 29, 2026n/a195 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, 2026
11Partial evidencePoulsbo, WA, United StatesHQ checked Sep 29, 202651-200170 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, 2026
12Partial evidenceDenver, CO, United StatesHQ checked Sep 29, 202651-200161 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, 2026
13Strong evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-200159 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, 2026
14Partial evidencePort Charlotte, FL, United StatesHQ checked Sep 29, 2026n/a154 contacts →

Partial evidence

“Industry Preferred Experiential Event Staffing & Services Since 1997!”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceWashington, DC, United StatesHQ checked Sep 29, 2026n/a152 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, 2026
16Indirect evidenceFargo, ND, United StatesHQ checked Sep 29, 202651-200137 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, 2026
17Indirect evidenceCuritiba, BrazilHQ checked Sep 29, 202651-200135 contacts →

Indirect evidence

“A Promova I.D.E.I.A.S.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidencePuteaux, FranceHQ checked Sep 29, 202651-200130 contacts →

Partial evidence

“Principale agence française spécialisée dans le Marketing et la Communication des acteurs de l'Intérêt Général.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceWeehawken, NJ, United StatesHQ checked Sep 29, 202611-50126 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, 2026
20Strong evidenceCampbell, CA, United StatesHQ checked Sep 29, 202651-200113 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, 2026
21Strong evidenceWest Des Moines, IA, United StatesHQ checked Sep 29, 202651-200109 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, 2026
22Partial evidenceWashington, DC, United StatesHQ checked Sep 29, 202651-200108 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, 2026
23Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 202611-50105 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, 2026
24Indirect evidenceTampere, FinlandHQ checked Sep 29, 202611-50100 contacts →

Indirect evidence

“Helena Riihitupa Oy on kiehtova kohtaamistoimisto, joka tarjoaa tapahtumatuotannon ja promootiopalveluiden lisäksi yksilölliset ratkaisut asiakassuhteiden hoitoon sekä tapahtumien…”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceSão Paulo, BrazilHQ checked Sep 29, 202651-20099 contacts →

Indirect evidence

“Já são 25 anos de muito sucesso.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 6,032 nonprofit event marketing agencies worldwide

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Nonprofit event marketing agencies worldwide at a glance

As of Sep 29, 2026
22.7%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
4,502
11-50
1,251
51-200
200
201-500
44
501-1,000
14
1,001-5,000
10
5,001-10,000
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for nonprofit event marketing agencies are linked below.
What qualifies
Companies worldwide 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.
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, 7,711 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 location

38 lists · largest first

Every Nonprofit event marketing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 6,032 nonprofit event marketing agencies worldwide 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 country has the most nonprofit event marketing agencies?

The United States leads with 2,174 companies, followed by the United Kingdom (278) and Canada (230). Every nonprofit event marketing agencies list by country and city is linked on this page.

Which city has the most nonprofit event marketing agencies?

New York leads with 126 headquartered companies, followed by London (92) and Sao Paulo (80).

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 7,711 verified decision-maker contacts tracked across these 6,032 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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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.