Company lists · Data refreshed September 2026

Top 25 Nonprofit communications consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 6,371 companies tracked

RevenueBase identified 6,371 nonprofit communications consultants worldwide as of September 2026 and tracks 30,092 professional contacts across them, including 9,948 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers nonprofit communications consultants 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 20, 2026. Country and city lists for nonprofit communications consultants 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 20, 2026 86% judged on-target in blind review

6,371Companies

30,092Contacts tracked

9,948Verified emails

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The 25 largest nonprofit communications consultants worldwide

Ranked by team size

Top 25 of 6,371 nonprofit communications consultants worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit communications consultants: 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	Lucas Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	10001+	756 contacts →
	Partial evidence “Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.” Source: RevenueBase Database · checked Sep 20, 2026
2	CCS Fundraising	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	728 contacts →
	Indirect evidence “For over 75 years, CCS Fundraising has empowered many of the world’s greatest organizations to advance some of the most important causes in history.” Source: RevenueBase Database · checked Sep 20, 2026
3	Reingold, INC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 20, 2026	201-500	282 contacts →
	Partial evidence “Reingold is a full-service strategic communications and marketing firm, helping clients tell stories that get results.” Source: RevenueBase Database · checked Sep 20, 2026
4	Missionwired	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	226 contacts →
	Indirect evidence “At MissionWired, we believe your world-changing cause deserves more than marginal gains.” Source: RevenueBase Database · checked Sep 20, 2026
5	M R	Indirect evidence	Washington, United StatesHQ checked Sep 20, 2026	51-200	208 contacts →
	Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 20, 2026
6	DCI	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	198 contacts →
	Indirect evidence “DCI Group is an independent public affairs consulting firm that specializes in public relations, crisis management, grassroots engagement, and digital advocacy.” Source: RevenueBase Database · checked Sep 20, 2026
7	The Heritage Company	Partial evidence	United StatesHQ checked Sep 20, 2026	501-1,000	197 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 20, 2026
8	DE Kleine Consultant	Partial evidence	Leiden, NetherlandsHQ checked Sep 20, 2026	51-200	195 contacts →
	Partial evidence “De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.” Source: RevenueBase Database · checked Sep 20, 2026
9	BOOM	Indirect evidence	Chagrin Falls, United StatesHQ checked Sep 20, 2026	n/a	195 contacts →
	Indirect 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 20, 2026
10	Pública	Indirect evidence	Caba, IndiaHQ checked Sep 20, 2026	51-200	159 contacts →
	Indirect evidence “Somos una consultora en estrategia y comunicación que trabaja junto a las compañías y líderes más innovadores del mundo para transmitir de forma disruptiva y creativa el impacto…” Source: RevenueBase Database · checked Sep 20, 2026
11	Eureka&co	Indirect evidence	Cuauhtémoc, MexicoHQ checked Sep 20, 2026	51-200	154 contacts →
	Indirect evidence “PR and marketing.” Source: RevenueBase Database · checked Sep 20, 2026
12	O'brien Garrett	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	n/a	152 contacts →
	Strong evidence “O'Brien Garrett is a comprehensive fundraising and communications company serving some of the nation's top nonprofits.” Source: RevenueBase Database · checked Sep 20, 2026
13	Fenton	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	140 contacts →
	Partial evidence “At Fenton, we are communications strategists for social change.” Source: RevenueBase Database · checked Sep 20, 2026
14	The Acceleration Project	Partial evidence	Scarsdale, NY, United StatesHQ checked Sep 20, 2026	11-50	131 contacts →
	Partial evidence “The Acceleration Project (TAP) is a nonprofit organization with a mission to unlock pathways to wealth creation and economic mobility by accelerating under-resourced small…” Source: RevenueBase Database · checked Sep 20, 2026
15	Instinctif Partners	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	130 contacts →
	Indirect evidence “Instinctif UK has officially rebranded to TEAM LEWIS.” Source: RevenueBase Database · checked Sep 20, 2026
16	Zmirov Communication	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	11-50	128 contacts →
	Indirect evidence “Public Relations & Influence Agency.” Source: RevenueBase Database · checked Sep 20, 2026
17	BWF	Partial evidence	Usa, United StatesHQ checked Sep 20, 2026	51-200	125 contacts →
	Partial evidence “BWF Zuri is the nonprofit sector’s most comprehensive fundraising consulting company, helping organizations thrive in a rapidly changing landscape.” Source: RevenueBase Database · checked Sep 20, 2026
18	KPR & Associates, INC	Partial evidence	Seoul, South KoreaHQ checked Sep 20, 2026	51-200	113 contacts →
	Partial evidence “KPR, one of the largest public relations consultancies in Korea, has carried out its mission to provide comprehensive, effective and dependable solutions to domestic and…” Source: RevenueBase Database · checked Sep 20, 2026
19	MAL Warwick Donordigital	Strong evidence	Berkeley, CA, United StatesHQ checked Sep 20, 2026	51-200	112 contacts →
	Strong evidence “Our team of expert consultants develops innovative direct marketing-driven donor development programs for exceptional nonprofit causes like yours.” Source: RevenueBase Database · checked Sep 20, 2026
20	Sámara	Indirect evidence	Santiago, ChileHQ checked Sep 20, 2026	11-50	111 contacts →
	Indirect evidence “Sámara es una consultora de comunicaciones que desde sus inicios en 2005, ha buscado contribuir a cargar de sentido las comunicaciones de instituciones, organismos, empresas y…” Source: RevenueBase Database · checked Sep 20, 2026
21	Gregory FCA	Indirect evidence	Ardmore, PA, United StatesHQ checked Sep 20, 2026	51-200	109 contacts →
	Indirect evidence “At Gregory FCA, we’re a 30-year success story, forged by exceeding client expectations during every engagement.” Source: RevenueBase Database · checked Sep 20, 2026
22	Campbell & Company	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	102 contacts →
	Strong evidence “Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Source: RevenueBase Database · checked Sep 20, 2026
23	Dewey Square Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	102 contacts →
	Partial evidence “The Dewey Square Group offers strategic marketing, grassroots and digital communications to the country's most respected corporate and non-profit organizations.” Source: RevenueBase Database · checked Sep 20, 2026
24	KCI	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	101 contacts →
	Indirect evidence “At KCI, we are a firm focused on values and people…both ours and yours.” Source: RevenueBase Database · checked Sep 20, 2026
25	VOX Global	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	99 contacts →
	Indirect evidence “It starts with a goal: yours.” Source: RevenueBase Database · checked Sep 20, 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: nonprofit communications consultants. 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 communications consultants.
Partial evidence: Its own public description names part of nonprofit communications consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit communications consultants. 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 6,371 nonprofit communications consultants worldwide

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Nonprofit communications consultants worldwide at a glance

As of Sep 20, 2026

33.1%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Washington

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

5,608

11-50

645

51-200

201-500

501-1,000

10001+

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 communications consultants, 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 communications consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “nonprofit communications consultants”. 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 communications consultants), 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 communications consultants, 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, 9,948 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 20, 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 communications consultants by location

35 lists · largest first

Every Nonprofit communications consultants 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 communications consultants, 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 communications consultants are there worldwide?

RevenueBase identified 6,371 nonprofit communications consultants 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?

Lucas Group, headquartered in Los Angeles, tops this list with the largest team on record.

Which country has the most nonprofit communications consultants?

The United States leads with 3,105 companies, followed by Canada (276) and the United Kingdom (230). Every nonprofit communications consultants list by country and city is linked on this page.

Which city has the most nonprofit communications consultants?

Washington leads with 192 headquartered companies, followed by New York (144) and Chicago (96).

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 9,948 verified decision-maker contacts tracked across these 6,371 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 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 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.