Company lists · Data refreshed September 2026

Top 25 Nonprofit communications agencies worldwide

Name: Nonprofit communications agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 7,919 companies tracked

RevenueBase identified 7,919 company matches for nonprofit communications agencies worldwide as of September 2026 and tracks 52,827 professional contacts across them, including 16,681 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for nonprofit communications agencies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026. Country and city lists for nonprofit communications agencies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

7,919Companies

52,827Contacts tracked

16,681Verified emails

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The 25 largest nonprofit communications agencies worldwide

Ranked by team size

Top 25 of 7,919 company matches for nonprofit communications agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Zeno Group	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	887 contacts →
	Exact match “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	RKD Group	Exact match	Plano, TX, United StatesHQ recorded Sep 20, 2026	201-500	492 contacts →
	Exact match “RKD Group is the trusted growth architect for nonprofits.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	DKC	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	349 contacts →
	Exact match “DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Nail Communications	Exact match	Providence, RI, United StatesHQ recorded Sep 20, 2026	n/a	315 contacts →
	Exact match “Nail Where every brand finds its fascinating.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Berlinrosen, An Orchestra Company	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	302 contacts →
	Exact match “Built to operate with the speed and intensity of a political campaign, BerlinRosen takes a 360-degree approach to communications, activating audiences and elevating story above…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Reingold, INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 20, 2026	201-500	282 contacts →
	Exact match “Reingold is a full-service strategic communications and marketing firm, helping clients tell stories that get results.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	GMMB	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	239 contacts →
	Exact match “We’re bold.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Missionwired	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	226 contacts →
	Exact match “At MissionWired, we believe your world-changing cause deserves more than marginal gains.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	SKDK	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	220 contacts →
	Exact match “SKDK provides strategic advice, public relations, crisis communications, advertising, direct mail, and research to national and international companies, advocacy organizations…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	CDN Comunicação	Exact match	São Paulo, BrazilHQ recorded Sep 20, 2026	201-500	209 contacts →
	Exact match “Somos “The PR PowerHouse”, uma verdadeira potência em PR e todas as suas disciplinas.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	M R	Exact match	Washington, United StatesHQ recorded Sep 20, 2026	51-200	208 contacts →
	Exact match “We are M+R.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	SVM PR And Marketing	Exact match	Providence, RI, United StatesHQ recorded Sep 20, 2026	n/a	206 contacts →
	Exact match “Increasing visibility, relevance and value.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	The Heritage Company	Exact match	United StatesHQ recorded Sep 20, 2026	501-1,000	197 contacts →
	Exact match “Nonprofit Organizations count on The Heritage Company for fundraising and outreach to donors, members and other constituents.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Encender Comunicación S.A	Exact match	Ciudad Autónoma De Buenos Aires, ArgentinaHQ recorded Sep 20, 2026	51-200	195 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	BOOM	Exact match	Chagrin Falls, United StatesHQ recorded Sep 20, 2026	n/a	195 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	TSD Communications, INC	Exact match	Washington, United StatesHQ recorded Sep 20, 2026	51-200	166 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Oliver Schrott Kommunikation OSK	Exact match	Köln, GermanyHQ recorded Sep 20, 2026	201-500	159 contacts →
	Exact match “Oliver Schrott Kommunikation, Germany’s fourth-largest owner-operated PR agency, develops and realizes successful communication programs that extend far beyond the scope of…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Summit Marketing	Exact match	Lenexa, KS, United StatesHQ recorded Sep 20, 2026	51-200	158 contacts →
	Exact match “Summit Marketing is an integrated marketing communications firm with a track record of success in fundraising for nonprofit organizations and in sales and channel development for…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Danya International LLC	Exact match	8737 Colesville Road, MD, United StatesHQ recorded Sep 20, 2026	201-500	155 contacts →
	Exact match “Shaping Healthy Futures Vision: Innovative solutions for social impact.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	ID	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 20, 2026	51-200	154 contacts →
	Exact match “Established in 1993, ID is the largest independently owned full-service communications agency in the U.S, with offices in Los Angeles and New York.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Inkhouse, An Orchestra Company	Exact match	San Francisco, CA, United StatesHQ recorded Sep 20, 2026	51-200	152 contacts →
	Exact match “A strategic communications agency, Inkhouse partners with innovators who are creating new markets or disrupting old ones-crafting stories and meeting audiences where they are.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	O'brien Garrett	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	n/a	152 contacts →
	Exact match “O'Brien Garrett is a comprehensive fundraising and communications company serving some of the nation's top nonprofits.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Flint Group Of Agencies	Exact match	Fargo, ND, United StatesHQ recorded Sep 20, 2026	51-200	150 contacts →
	Exact match “Flint Group brings together strategic marketing, PR, and communications expertise across traditional and non-traditional channels.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	M C Saatchi SSK	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	51-200	141 contacts →
	Exact match “We bring together powerful earned-first creativity with expertise in brand strategy, social impact, issue advocacy, and corporate reputation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Fenton	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	51-200	140 contacts →
	Exact match “At Fenton, we are communications strategists for social change.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “nonprofit communications agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 7,919 nonprofit communications agencies worldwide

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Nonprofit communications agencies worldwide at a glance

As of Sep 20, 2026

31.6%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

6,388

11-50

1,295

51-200

185

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for nonprofit communications agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “nonprofit communications agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 16,681 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Nonprofit communications agencies by location

52 lists · largest first

Every Nonprofit communications 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “nonprofit communications agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit communications agencies are there worldwide?

RevenueBase identified 7,919 company matches for nonprofit communications agencies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Zeno Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most nonprofit communications agencies?

The United States leads with 3,145 companies, followed by the United Kingdom (511) and Canada (288). Every nonprofit communications agencies list by country and city is linked on this page.

Which city has the most nonprofit communications agencies?

New York leads with 222 company records, followed by London (188) and Washington (149).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 16,681 professional contacts with verified work emails tracked across these 7,919 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 SmartSearch, 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.