Company lists · Data refreshed September 2026

Top 25 Nonprofit operations consulting firms worldwide

RevenueBase identified 30,826 nonprofit operations consulting firms worldwide as of September 2026 and tracks 171,631 professional contacts across them, including 35,375 with verified work emails. The United States is the largest market and London the largest hub.

This list covers nonprofit operations 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 29, 2026. Country and city lists for nonprofit operations 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 29, 2026 86% judged on-target in blind review
30,826Companies
171,631Contacts tracked
35,375Verified emails
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The 25 largest nonprofit operations consulting firms worldwide

Ranked by team size
Top 25 of 30,826 nonprofit operations consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit operations 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 20265,001-10,0006,978 contacts →

Partial evidence

“As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 2026n/a4,751 contacts →

Partial evidence

“We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 29, 20261,001-5,0001,755 contacts →

Indirect evidence

“BMC is opgericht vanuit de overtuiging dat de bedrijfsvoering binnen de overheid kon worden verbeterd.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-5001,221 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
5Indirect evidenceDallas, TX, United StatesHQ checked Sep 29, 20261,001-5,0001,160 contacts →

Indirect evidence

“With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 2026501-1,000775 contacts →

Partial evidence

“THE NONPROFIT ACCOUNTING SPECIALISTS.”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202610001+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
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000728 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
9Strong evidenceNeuilly Sur Seine, FranceHQ checked Sep 29, 2026501-1,000551 contacts →

Strong evidence

“julhiet sterwen is a key player in management, human resources and operational consulting.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceParis, FranceHQ checked Sep 29, 202651-200499 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
11Partial evidenceJalan Todak 5, MalaysiaHQ checked Sep 29, 2026201-500376 contacts →

Partial evidence

“Tokio Marine Life Insurance Malaysia Bhd is a management consulting company based out of 11 Bangunan Tm Asia Life, Jalan Todak 5, Malaysia.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200361 contacts →

Indirect evidence

“We make change happen.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceMadrid, SpainHQ checked Sep 29, 2026501-1,000345 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 29, 2026
14Indirect evidenceBogotá, ColombiaHQ checked Sep 29, 202651-200304 contacts →

Indirect evidence

“C&M Consultores S.A.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceWashington, DC, United StatesHQ checked Sep 29, 202610001+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
16Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 29, 2026201-500297 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 29, 2026
17Indirect evidenceKuala Lumpur, MalaysiaHQ checked Sep 29, 2026501-1,000268 contacts →

Indirect evidence

“Built on the company’s core expertise, Brandt helps organizations achieve enhanced service levels through transforming the approach, performance, quality and efficiency of the…”

Source: RevenueBase Database · checked Sep 29, 2026
18Strong evidenceChicago, IL, United StatesHQ checked Sep 29, 2026n/a265 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
19Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 29, 202651-200262 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
20Indirect evidenceBaton Rouge, LA, United StatesHQ checked Sep 29, 2026n/a258 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 29, 2026
21Partial evidenceDüsseldorf, GermanyHQ checked Sep 29, 202610001+251 contacts →

Partial evidence

“Atos Information Technology GmbH is a management consulting company”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 29, 20261,001-5,000249 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
23Partial evidenceRaleigh, NC, United StatesHQ checked Sep 29, 2026201-500244 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 29, 2026
24Indirect evidenceBrussels, BelgiumHQ checked Sep 29, 202651-200242 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
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026n/a232 contacts →

Indirect evidence

“TCC Group collaborates with leaders to solve complex social problems.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 30,826 nonprofit operations consulting firms worldwide

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Nonprofit operations consulting firms worldwide at a glance

As of Sep 29, 2026
20.6%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
25,399
11-50
4,380
51-200
742
201-500
122
501-1,000
38
1,001-5,000
33
5,001-10,000
8
10001+
22

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 operations 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
Every country. Country and city lists for nonprofit operations consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “nonprofit operations 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 nonprofit operations 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 nonprofit operations 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, 35,375 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 operations consulting firms by location

123 lists · largest first

Every Nonprofit operations 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 nonprofit operations 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 nonprofit operations consulting firms are there worldwide?

RevenueBase identified 30,826 nonprofit operations 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?

Kearney, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most nonprofit operations consulting firms?

The United States leads with 10,366 companies, followed by Brazil (1,582) and the United Kingdom (1,528). Every nonprofit operations consulting firms list by country and city is linked on this page.

Which city has the most nonprofit operations consulting firms?

London leads with 482 headquartered companies, followed by New York (412) and Sao Paulo (359).

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 35,375 verified decision-maker contacts tracked across these 30,826 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.

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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.