Company lists · Data refreshed September 2026

Top 25 Nonprofit consulting services worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 34,508 companies tracked

RevenueBase identified 34,508 nonprofit consulting services worldwide as of September 2026 and tracks 194,142 professional contacts across them, including 37,123 with verified work emails. The United States is the largest market and London the largest hub.

This list covers nonprofit consulting services 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 21, 2026. Country and city lists for nonprofit consulting services 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 21, 2026 86% judged on-target in blind review

34,508Companies

194,142Contacts tracked

37,123Verified emails

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The 25 largest nonprofit consulting services worldwide

Ranked by team size

Top 25 of 34,508 nonprofit consulting services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit consulting services: 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	Strategy	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	5,082 contacts →
	Indirect evidence “From strategy to execution.” Source: RevenueBase Database · checked Sep 21, 2026
2	Bank Of The West	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
3	180 Degrees Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	10001+	2,891 contacts →
	Partial evidence “180 Degrees Consulting (180DC) is the world's largest youth led consultancy for non-profits, governments and social-conscious organisations, with over 200 branches in 38+…” Source: RevenueBase Database · checked Sep 21, 2026
4	Blackmont Consulting	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
5	Your Part-Time Controller, LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	501-1,000	775 contacts →
	Partial evidence “THE NONPROFIT ACCOUNTING SPECIALISTS.” Source: RevenueBase Database · checked Sep 21, 2026
6	Lucas Group	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 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 21, 2026
7	CCS Fundraising	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
8	Professional	Indirect evidence	Milan, ItalyHQ checked Sep 21, 2026	n/a	535 contacts →
	Indirect evidence “Consultant Corporate Governance and Project Management.” Source: RevenueBase Database · checked Sep 21, 2026
9	GVA	Indirect evidence	Paris, FranceHQ checked Sep 21, 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 21, 2026
10	NEW York State Technology Enterprise Corporation Nystec	Indirect evidence	Rome, NY, United StatesHQ checked Sep 21, 2026	201-500	480 contacts →
	Indirect evidence “For more than 30 years, NYSTEC has provided independent advisory services to our government partners.” Source: RevenueBase Database · checked Sep 21, 2026
11	DB	Indirect evidence	Qormi Qormi, MaltaHQ checked Sep 21, 2026	n/a	468 contacts →
	Indirect evidence “DB supports organisations build greater power, passion and performance by assisting them identify, set and implement the necessary dimension and bearing required to reach their…” Source: RevenueBase Database · checked Sep 21, 2026
12	The Bridgespan Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	443 contacts →
	Partial evidence “The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Source: RevenueBase Database · checked Sep 21, 2026
13	Deloitte Consulting	Indirect evidence	Milan, ItalyHQ checked Sep 21, 2026	10001+	406 contacts →
	Indirect evidence “Deloitte è tra le più grandi realtà nei servizi professionali alle imprese in Italia, dove è presente da circa 100 anni.” Source: RevenueBase Database · checked Sep 21, 2026
14	Delivery Associates	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	361 contacts →
	Indirect evidence “We make change happen.” Source: RevenueBase Database · checked Sep 21, 2026
15	CE Consulting Empresarial	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	501-1,000	345 contacts →
	Partial evidence “CE Consulting Empresarial es la mayor red en volumen de asesorías y líder en España: Somos más de 150 asesorías nacionales e internacionales, que ofrecen servicios de asesoría…” Source: RevenueBase Database · checked Sep 21, 2026
16	C & M Consultores S.A.S	Indirect evidence	Bogotá, ColombiaHQ checked Sep 21, 2026	51-200	304 contacts →
	Indirect evidence “C&M Consultores S.A.” Source: RevenueBase Database · checked Sep 21, 2026
17	Nonprofit Hr, Powered By Onedigital	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 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 21, 2026
18	A&a Associate	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 21, 2026	201-500	297 contacts →
	Indirect evidence “A&A Associate is a UAE-registered management consultancy firm that provides cost-effective and value-added solutions to meet all your business needs under one roof.” Source: RevenueBase Database · checked Sep 21, 2026
19	JCA	Strong evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
20	Capincrouse	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 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 21, 2026
21	SSA Consultants	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 21, 2026	n/a	258 contacts →
	Indirect evidence “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Source: RevenueBase Database · checked Sep 21, 2026
22	Seize Institute Of Consulting And Business Solutions	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 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 21, 2026
23	Scottmadden, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 21, 2026	201-500	244 contacts →
	Partial evidence “ScottMadden is a management consulting firm that does what it takes to get the job done right.” Source: RevenueBase Database · checked Sep 21, 2026
24	GRF Cpas & Advisors	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 21, 2026	51-200	243 contacts →
	Indirect evidence “Headquartered in the Washington, DC metropolitan region, GRF CPAs & Advisors (GRF) is a full-service professional services firm providing clients with audit and assurance, tax…” Source: RevenueBase Database · checked Sep 21, 2026
25	Gopa Pace	Indirect evidence	Brussels, BelgiumHQ checked Sep 21, 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 21, 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 services. 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 services.
Partial evidence: Its own public description names part of nonprofit consulting services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit consulting services. 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 34,508 nonprofit consulting services worldwide

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Nonprofit consulting services worldwide at a glance

As of Sep 21, 2026

19.1%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

28,527

11-50

4,902

51-200

776

201-500

126

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

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 services, 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 services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “nonprofit consulting services”. 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 services), 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 services, 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, 37,123 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 21, 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 services by location

133 lists · largest first

Every Nonprofit consulting services 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 services, 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 services are there worldwide?

RevenueBase identified 34,508 nonprofit consulting services 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?

Strategy, headquartered in New York, tops this list with the largest team on record.

Which country has the most nonprofit consulting services?

The United States leads with 11,001 companies, followed by Brazil (1,759) and the United Kingdom (1,454). Every nonprofit consulting services list by country and city is linked on this page.

Which city has the most nonprofit consulting services?

London leads with 490 headquartered companies, followed by New York (428) and Sao Paulo (371).

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 37,123 verified decision-maker contacts tracked across these 34,508 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 21, 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.