Company lists · Data refreshed September 2026

Top 25 Nonprofit consulting agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 10,507 companies tracked

RevenueBase identified 10,507 nonprofit consulting agencies worldwide as of September 2026 and tracks 68,596 professional contacts across them, including 14,597 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers nonprofit consulting 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 consulting 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

10,507Companies

68,596Contacts tracked

14,597Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest nonprofit consulting agencies worldwide

Ranked by team size

Top 25 of 10,507 nonprofit consulting 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 consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bank Of The West	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	n/a	4,751 contacts →
	Partial evidence “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Source: RevenueBase Database · checked Sep 29, 2026
2	Blackmont Consulting	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	1,221 contacts →
	Partial evidence “Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Source: RevenueBase Database · checked Sep 29, 2026
3	Your Part-Time Controller, LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	501-1,000	775 contacts →
	Partial evidence “THE NONPROFIT ACCOUNTING SPECIALISTS.” Source: RevenueBase Database · checked Sep 29, 2026
4	Lucas Group	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	10001+	756 contacts →
	Strong 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 29, 2026
5	CCS Fundraising	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 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 29, 2026
6	GVA	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	51-200	499 contacts →
	Indirect evidence “Créé en 1975, GVA est composé de 80 personnes, pour près de 10 millions de chiffre d’affaires.” Source: RevenueBase Database · checked Sep 29, 2026
7	Nonprofit Hr, Powered By Onedigital	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	10001+	300 contacts →
	Partial evidence “Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Source: RevenueBase Database · checked Sep 29, 2026
8	JCA	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	n/a	265 contacts →
	Strong evidence “JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Source: RevenueBase Database · checked Sep 29, 2026
9	Capincrouse	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 29, 2026	51-200	262 contacts →
	Partial evidence “As a national full-service accounting and advisory firm exclusively serving nonprofit organizations, CapinCrouse provides professional solutions to organizations whose outcomes…” Source: RevenueBase Database · checked Sep 29, 2026
10	Seize Institute Of Consulting And Business Solutions	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 29, 2026	1,001-5,000	249 contacts →
	Partial evidence “An integrated and advanced consulting entity concerned with supporting the governmental, private and non-profit sectors with appropriate contractual solutions and meeting their…” Source: RevenueBase Database · checked Sep 29, 2026
11	Gopa Pace	Indirect evidence	Brussels, BelgiumHQ checked Sep 29, 2026	51-200	242 contacts →
	Indirect evidence “GOPA Partners in Action for Change and Engagement (PACE), formerly B&S Europe, is an integral part of GOPA, Europe’s leading professional services provider combining engineering…” Source: RevenueBase Database · checked Sep 29, 2026
12	TCC Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	n/a	232 contacts →
	Indirect evidence “TCC Group collaborates with leaders to solve complex social problems.” Source: RevenueBase Database · checked Sep 29, 2026
13	Global Consulting Group	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	228 contacts →
	Partial evidence “Global Consulting Group (GCG) is a charity that provides pro-bono consulting services to charities and not-for-profits by connecting university students with experienced…” Source: RevenueBase Database · checked Sep 29, 2026
14	Arabella Advisors	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	201-500	227 contacts →
	Partial evidence “Arabella Advisors is a professional services firm that provides administrative, operational, and strategic support to nonprofits, foundations, and individual donors.” Source: RevenueBase Database · checked Sep 29, 2026
15	Nonprofit Finance Fund	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	212 contacts →
	Strong evidence “Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…” Source: RevenueBase Database · checked Sep 29, 2026
16	M R	Indirect evidence	Washington, United StatesHQ checked Sep 29, 2026	51-200	208 contacts →
	Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 29, 2026
17	DE Kleine Consultant	Indirect evidence	Leiden, NetherlandsHQ checked Sep 29, 2026	51-200	195 contacts →
	Indirect 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 29, 2026
18	الزومان والفهد والحجاج للاستشارات المهنية	Indirect evidence	Al Yasmin District, Saudi ArabiaHQ checked Sep 29, 2026	51-200	177 contacts →
	Indirect evidence “شركة الزومان والفهد والحجاج للاستشارات المهنية” Source: RevenueBase Database · checked Sep 29, 2026
19	Harvard Undergraduate Consulting Group	Strong evidence	Cambridge, MA, United StatesHQ checked Sep 29, 2026	51-200	144 contacts →
	Strong evidence “Harvard Undergraduate Consulting Group is a nonprofit student organization at Harvard dedicated to helping businesses grow and achieve their strategic goals.” Source: RevenueBase Database · checked Sep 29, 2026
20	Amphil	Partial evidence	Oak Park, IL, United StatesHQ checked Sep 29, 2026	51-200	136 contacts →
	Partial evidence “AmPhil exists to promote the art of civil association by helping philanthropists, charitable foundations, and nonprofit organizations grow and flourish through practical guidance…” Source: RevenueBase Database · checked Sep 29, 2026
21	The Acceleration Project	Partial evidence	Scarsdale, NY, United StatesHQ checked Sep 29, 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 29, 2026
22	BWF	Strong evidence	Usa, United StatesHQ checked Sep 29, 2026	51-200	125 contacts →
	Strong 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 29, 2026
23	Emergent Method	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 29, 2026	51-200	125 contacts →
	Partial evidence “Emergent Method is a nationally recognized management consulting firm focused on developing and implementing plans, programs, and initiatives that result in transformative impact.” Source: RevenueBase Database · checked Sep 29, 2026
24	Mcking Consulting	Strong evidence	Fairfax, VA, United StatesHQ checked Sep 29, 2026	51-200	118 contacts →
	Strong evidence “McKing Consulting Corporation provides a variety of general and specialized management consulting services to the federal government, state agencies, nonprofits, and public and…” Source: RevenueBase Database · checked Sep 29, 2026
25	JMT Consulting	Partial evidence	Mount Juliet, TN, United StatesHQ checked Sep 29, 2026	51-200	112 contacts →
	Partial evidence “Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.” Source: RevenueBase Database · checked Sep 29, 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 consulting 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 consulting agencies.
Partial evidence: Its own public description names part of nonprofit consulting agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit consulting 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 10,507 nonprofit consulting agencies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 14,597 reachable decision-makers.

Free signup · no credit card

View the full list →

Nonprofit consulting agencies worldwide at a glance

As of Sep 29, 2026

21.3%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

8,975

11-50

1,259

51-200

220

201-500

501-1,000

1,001-5,000

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 consulting 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 consulting agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “nonprofit consulting 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 consulting 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 consulting 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, 14,597 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 consulting agencies by location

53 lists · largest first

Every Nonprofit consulting 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 consulting 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 consulting agencies are there worldwide?

RevenueBase identified 10,507 nonprofit consulting 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?

Bank Of The West, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most nonprofit consulting agencies?

The United States leads with 4,995 companies, followed by Canada (465) and the United Kingdom (314). Every nonprofit consulting agencies list by country and city is linked on this page.

Which city has the most nonprofit consulting agencies?

New York leads with 215 headquartered companies, followed by Washington (196) and Chicago (176).

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 14,597 verified decision-maker contacts tracked across these 10,507 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.

Ready to reach these companies? Verified emails and direct dials for all 10,507 nonprofit consulting agencies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.