Company lists · Data refreshed September 2026

Top 25 Pro bono consulting firms worldwide

Name: Pro bono consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,138 companies tracked

RevenueBase identified 3,138 pro bono consulting firms worldwide as of September 2026 and tracks 31,939 professional contacts across them, including 6,055 with verified work emails and 7,073 with mobile numbers. The United States is the largest market and New York the largest hub.

This list covers pro bono consulting firms 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 5, 2026. Country and city lists for pro bono consulting firms 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 5, 2026 86% judged on-target in blind review

3,138Companies

31,939Contacts tracked

6,055Verified emails

7,073Mobile numbers

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The 25 largest pro bono consulting firms worldwide

Ranked by team size

Top 25 of 3,138 pro bono consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to pro bono consulting firms: 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	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	n/a	4,751 contacts →
	Indirect evidence “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Source: RevenueBase Database · checked Sep 5, 2026
2	180 Degrees Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 5, 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 5, 2026
3	Blackmont Consulting	Partial evidence	London, United KingdomHQ checked Sep 5, 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 5, 2026
4	GVA	Indirect evidence	Paris, FranceHQ checked Sep 5, 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 5, 2026
5	ECTI	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	n/a	375 contacts →
	Indirect evidence “Fondée en 1974, ECTI est une association de bénévolat de compétences reconnue d’utilité publique.” Source: RevenueBase Database · checked Sep 5, 2026
6	Taproot Foundation	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	n/a	275 contacts →
	Indirect evidence “Taproot Foundation is a nonprofit organization connecting communities and driving social change.” Source: RevenueBase Database · checked Sep 5, 2026
7	JCA	Partial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	n/a	265 contacts →
	Partial 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 5, 2026
8	Global Consulting Group	Strong evidence	Melbourne, AustraliaHQ checked Sep 5, 2026	51-200	228 contacts →
	Strong 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 5, 2026
9	Nonprofit Finance Fund	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	212 contacts →
	Partial 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 5, 2026
10	M R	Indirect evidence	Washington, United StatesHQ checked Sep 5, 2026	51-200	208 contacts →
	Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 5, 2026
11	DE Kleine Consultant	Indirect evidence	Leiden, NetherlandsHQ checked Sep 5, 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 5, 2026
12	Harvard Undergraduate Consulting Group	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 5, 2026	51-200	144 contacts →
	Partial 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 5, 2026
13	Legal AID Center Of Southern Nevada	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 5, 2026	51-200	142 contacts →
	Indirect evidence “Established in 1958, Legal Aid Center of Southern Nevada is a private, non-profit, 501(c)(3) organization that ensures equal access to justice through free legal advice and…” Source: RevenueBase Database · checked Sep 5, 2026
14	The Acceleration Project	Indirect evidence	Scarsdale, NY, United StatesHQ checked Sep 5, 2026	11-50	131 contacts →
	Indirect 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 5, 2026
15	Essca Junior Conseil	Indirect evidence	Angers, FranceHQ checked Sep 5, 2026	51-200	126 contacts →
	Indirect evidence “ESSCA Junior Conseil has been ESSCA's Junior Enterprise since 1972.” Source: RevenueBase Database · checked Sep 5, 2026
16	BWF	Partial evidence	Usa, United StatesHQ checked Sep 5, 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 5, 2026
17	Empresa Junior Mackenzie Consultoria	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	51-200	124 contacts →
	Indirect evidence “A Empresa Junior Mackenzie Consultoria foi fundada em 1990, e desde seu início, assume o compromisso de entregar a melhor solução a cada um de seus clientes, através da realização…” Source: RevenueBase Database · checked Sep 5, 2026
18	JMT Consulting	Indirect evidence	Mount Juliet, TN, United StatesHQ checked Sep 5, 2026	51-200	112 contacts →
	Indirect 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 5, 2026
19	Jesap Consulting	Partial evidence	Roma, ItalyHQ checked Sep 5, 2026	51-200	108 contacts →
	Partial evidence “JESAP Consulting is a no-profit association composed of the most motivated students of Sapienza Università di Roma which offers consulting services to different types of companies…” Source: RevenueBase Database · checked Sep 5, 2026
20	Zuri Group	Indirect evidence	Bend, OR, United StatesHQ checked Sep 5, 2026	51-200	106 contacts →
	Indirect evidence “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Source: RevenueBase Database · checked Sep 5, 2026
21	Insper JR	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	51-200	105 contacts →
	Indirect evidence “A Insper Jr.” Source: RevenueBase Database · checked Sep 5, 2026
22	Mines Services	Indirect evidence	Nancy, FranceHQ checked Sep 5, 2026	11-50	103 contacts →
	Indirect evidence “Depuis 1981, Mines Services, la Junior-Entreprise de l'École des Mines de Nancy, met à la disposition des entreprises et des collectivités le savoir-faire des étudiants de l'École.” Source: RevenueBase Database · checked Sep 5, 2026
23	Campbell & Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	102 contacts →
	Partial 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 5, 2026
24	Hilltop Consultants	Partial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	11-50	101 contacts →
	Partial evidence “Hilltop Consultants is a consulting organization entirely run by Georgetown University undergraduates that executes and leads 6-7 strategy consulting projects each semester for…” Source: RevenueBase Database · checked Sep 5, 2026
25	KCI	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 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 5, 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: pro bono consulting firms. 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 pro bono consulting firms.
Partial evidence: Its own public description names part of pro bono consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pro bono consulting firms. 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 3,138 pro bono consulting firms worldwide

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Pro bono consulting firms worldwide at a glance

As of Sep 5, 2026

19.0%Verified-email coverage

22.1%Mobile-number coverage

10.2Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

2,517

11-50

506

51-200

100

201-500

1,001-5,000

5,001-10,000

10001+

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 pro bono consulting firms, 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: 10 countries, largest first: the United States, Canada, the United Kingdom, France, Brazil, Italy, Australia, Germany, the Netherlands, Spain. Country and city lists for pro bono consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “pro bono consulting firms”. 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 pro bono consulting firms), 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 pro bono consulting firms, 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, 6,055 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 5, 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.

Pro bono consulting firms by location

25 lists · largest first

Every Pro bono consulting firms 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 pro bono consulting firms, 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 pro bono consulting firms are there worldwide?

RevenueBase identified 3,138 pro bono consulting firms 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 pro bono consulting firms?

The United States leads with 2,122 companies, followed by Canada (229) and the United Kingdom (166). Every pro bono consulting firms list by country and city is linked on this page.

Which city has the most pro bono consulting firms?

New York leads with 94 headquartered companies, followed by Chicago (76) and Washington (76).

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 6,055 verified decision-maker contacts tracked across these 3,138 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 5, 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.