Company lists · Data refreshed September 2026

Top 25 International nonprofit consultants worldwide

Name: International nonprofit consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 10,513 companies tracked

RevenueBase identified 10,513 company matches for international nonprofit consultants worldwide as of September 2026 and tracks 78,772 professional contacts across them, including 17,938 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for international nonprofit consultants 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 28, 2026. Country and city lists for international nonprofit consultants 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 28, 2026 How this list was built

10,513Companies

78,772Contacts tracked

17,938Verified emails

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The 25 largest international nonprofit consultants worldwide

Ranked by team size

Top 25 of 10,513 company matches for international nonprofit consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	GFA Consulting Group Gmbh	Exact match	Hamburg, GermanyHQ recorded Sep 28, 2026	1,001-5,000	1,382 contacts →
	Exact match “GFA Consulting Group is one of Europe's leading consulting firms in the field of international development cooperation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	IPE Global Limited	Exact match	New Delhi, IndiaHQ recorded Sep 28, 2026	501-1,000	1,322 contacts →
	Exact match “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Blackmont Consulting	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	1,221 contacts →
	Exact match “Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Ecorys	Exact match	Rotterdam, NetherlandsHQ recorded Sep 28, 2026	201-500	831 contacts →
	Exact match “We are an international provider of research, consulting, programme management and communications services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Adam Smith International	Exact match	London, United KingdomHQ recorded Sep 28, 2026	n/a	825 contacts →
	Exact match “Adam Smith International is a global advisory company that works locally to transform lives by making economies stronger, societies more stable, and governments more effective.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	NGO Recruit Partners	Exact match	NetherlandsHQ recorded Sep 28, 2026	n/a	796 contacts →
	Exact match “NGO Recruit Partners is a global executive search and recruitment firm serving the non-profit, sustainable development, and social impact sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	CCS Fundraising	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	728 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Niras International Consulting	Exact match	Copenhagen, DenmarkHQ recorded Sep 28, 2026	201-500	667 contacts →
	Exact match “NIRAS International Development Consulting is one of Europe's largest development consulting firms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Global Research And Consulting Group	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	643 contacts →
	Exact match “GRC Group (Global Research & Consulting) is a 501(c)(3) nonprofit with over active students from various cultural and academic backgrounds.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Finn Church AID	Exact match	Helsinki, FinlandHQ recorded Sep 28, 2026	1,001-5,000	571 contacts →
	Exact match “We believe in everyone’s right to peace, quality education and sustainable livelihoods, and we work with the most vulnerable people, regardless of their religious beliefs, ethnic…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	ADE	Exact match	Louvain-la-neuve, BelgiumHQ recorded Sep 28, 2026	n/a	564 contacts →
	Exact match “ADE is a consultancy providing independent advice for contributing to improve public decision-making.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	FSG	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	51-200	517 contacts →
	Exact match “At FSG, we are a global nonprofit consulting firm committed to advancing equitable systems change.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	GVA	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	499 contacts →
	Exact match “Créé en 1975, GVA est composé de 80 personnes, pour près de 10 millions de chiffre d’affaires.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	The Bridgespan Group	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	201-500	443 contacts →
	Exact match “The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Sattva Consulting	Exact match	Bangalore, IndiaHQ recorded Sep 28, 2026	201-500	441 contacts →
	Exact match “At Sattva Consulting, we believe meaningful change happens when people come together with a shared purpose.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Particip Gmbh	Exact match	Freiburg, GermanyHQ recorded Sep 28, 2026	51-200	386 contacts →
	Exact match “Particip GmbH - Your Partner in Change was founded in 1989 and is now an independent, internationally-recognised consultancy company, offering the expertise and the know-how…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	ECTI	Exact match	Paris, FranceHQ recorded Sep 28, 2026	n/a	375 contacts →
	Exact match “Fondée en 1974, ECTI est une association de bénévolat de compétences reconnue d’utilité publique.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Delivery Associates	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	361 contacts →
	Exact match “We make change happen.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	BVNG	Exact match	Groningen, NetherlandsHQ recorded Sep 28, 2026	501-1,000	335 contacts →
	Exact match “Samen vooruit Samen met onze professionals maken we het verschil.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	INOVA	Exact match	Matosinhos, PortugalHQ recorded Sep 28, 2026	51-200	320 contacts →
	Exact match “INOVA+ is a leading innovation consulting company with a vast experience helping organizations across diverse sectors develop innovative projects.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Nonprofit Hr, Powered By Onedigital	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	10001+	300 contacts →
	Exact match “Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	JCA	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	n/a	265 contacts →
	Exact match “JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	SSA Consultants	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 28, 2026	n/a	258 contacts →
	Exact match “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	NGO Management Association	Exact match	Geneva, SwitzerlandHQ recorded Sep 28, 2026	n/a	258 contacts →
	Exact match “NGO Management Association (NMA) is a Geneva-based non-profit committed to enhancing the management capabilities of organisations tackling today's most pressing development and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	NTU International A S	Exact match	Aalborg, DenmarkHQ recorded Sep 28, 2026	201-500	246 contacts →
	Exact match “Since 2007, we have delivered sustainable development projects and provided advisory services within engineering, policy, economics, and social fields.” Recorded in the RevenueBase company graph · Sep 28, 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 “international nonprofit consultants”. 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 10,513 international nonprofit consultants worldwide

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International nonprofit consultants worldwide at a glance

As of Sep 28, 2026

22.8%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

8,437

11-50

1,652

51-200

324

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 international nonprofit consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “international nonprofit consultants” 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 17,938 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 28, 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.

International nonprofit consultants by location

57 lists · largest first

Every International nonprofit 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 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 “international nonprofit consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international nonprofit consultants are there worldwide?

RevenueBase identified 10,513 company matches for international nonprofit consultants 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?

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

Which country has the most international nonprofit consultants?

The United States leads with 3,874 companies, followed by the United Kingdom (440) and Canada (412). Every international nonprofit consultants list by country and city is linked on this page.

Which city has the most international nonprofit consultants?

London leads with 204 company records, followed by New York (192) and Washington (181).

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 17,938 professional contacts with verified work emails tracked across these 10,513 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 28, 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.