Company lists · Data refreshed September 2026

Top 25 Charitable consulting firms based in the United States

Name: Charitable consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 3,314 companies tracked

RevenueBase identified 3,314 charitable consulting firms headquartered in the United States as of September 2026 and tracks 17,271 professional contacts across them, including 8,072 with verified work emails. New York is the largest hub.

This list covers charitable consulting firms headquartered in the United States, 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 27, 2026.

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 27, 2026 86% judged on-target in blind review

3,314Companies

17,271Contacts tracked

8,072Verified emails

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The 25 largest charitable consulting firms based in the United States

Ranked by team size

Top 25 of 3,314 charitable consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to charitable 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	CCS Fundraising	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
2	National Christian Foundation	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 27, 2026	201-500	296 contacts →
	Indirect evidence “At the National Christian Foundation (NCF), we understand the challenges that come with being entrusted with much.” Source: RevenueBase Database · checked Sep 27, 2026
3	JCA	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 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 27, 2026
4	National Philanthropic Trust	Indirect evidence	Jenkintown, PA, United StatesHQ checked Sep 27, 2026	201-500	258 contacts →
	Indirect evidence “National Philanthropic Trust is a public charity dedicated to providing philanthropic expertise to donors, foundations and financial institutions, enabling them to realize their…” Source: RevenueBase Database · checked Sep 27, 2026
5	Arabella Advisors	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	227 contacts →
	Indirect 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 27, 2026
6	M R	Indirect evidence	Washington, United StatesHQ checked Sep 27, 2026	51-200	208 contacts →
	Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 27, 2026
7	Global Impact	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	170 contacts →
	Indirect evidence “Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Source: RevenueBase Database · checked Sep 27, 2026
8	Amphil	Partial evidence	Oak Park, IL, United StatesHQ checked Sep 27, 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 27, 2026
9	The Acceleration Project	Indirect evidence	Scarsdale, NY, United StatesHQ checked Sep 27, 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 27, 2026
10	BWF	Partial evidence	Usa, United StatesHQ checked Sep 27, 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 27, 2026
11	MAL Warwick Donordigital	Indirect evidence	Berkeley, CA, United StatesHQ checked Sep 27, 2026	51-200	112 contacts →
	Indirect evidence “Our team of expert consultants develops innovative direct marketing-driven donor development programs for exceptional nonprofit causes like yours.” Source: RevenueBase Database · checked Sep 27, 2026
12	JMT Consulting	Indirect evidence	Mount Juliet, TN, United StatesHQ checked Sep 27, 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 27, 2026
13	Zuri Group	Indirect evidence	Bend, OR, United StatesHQ checked Sep 27, 2026	51-200	106 contacts →
	Indirect evidence “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Source: RevenueBase Database · checked Sep 27, 2026
14	Campbell & Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 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 27, 2026
15	ORR Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	99 contacts →
	Indirect evidence “Orr Group was born out of a need for event management and fundraising support in the philanthropic sector.” Source: RevenueBase Database · checked Sep 27, 2026
16	BDI	Indirect evidence	Monrovia, CA, United StatesHQ checked Sep 27, 2026	51-200	95 contacts →
	Indirect evidence “OUR AGENCY: BDI is a full-service, omni-channel, marketing and fundraising agency for nonprofits.” Source: RevenueBase Database · checked Sep 27, 2026
17	American Endowment Foundation	Indirect evidence	Hudson, OH, United StatesHQ checked Sep 27, 2026	51-200	95 contacts →
	Indirect evidence “Established in 1993, American Endowment Foundation (AEF) is one of the nation’s largest independent donor-advised fund sponsors.” Source: RevenueBase Database · checked Sep 27, 2026
18	Tiaa Kaspick	Partial evidence	Redwood Shores, CA, United StatesHQ checked Sep 27, 2026	51-200	89 contacts →
	Partial evidence “Founded in 1989, TIAA Kaspick offers sophisticated asset management, high quality administration, comprehensive reporting, and consulting services to help charities significantly…” Source: RevenueBase Database · checked Sep 27, 2026
19	Schultz & Williams	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 27, 2026	51-200	83 contacts →
	Partial evidence “Schultz & Williams is a national consulting firm dedicated to helping nonprofits of all types and sizes achieve financial stability, meet organizational goals, and support greater…” Source: RevenueBase Database · checked Sep 27, 2026
20	Marts&lundy	Indirect evidence	Lyndhurst, NJ, United StatesHQ checked Sep 27, 2026	51-200	79 contacts →
	Indirect evidence “Marts & Lundy serves as a trusted partner to mission-driven organizations whose bold aspirations are realized through the power of philanthropy.” Source: RevenueBase Database · checked Sep 27, 2026
21	Generis	Indirect evidence	Johns Creek, GA, United StatesHQ checked Sep 27, 2026	51-200	78 contacts →
	Indirect evidence “Most faith-based organizations don't have a funding problem.” Source: RevenueBase Database · checked Sep 27, 2026
22	The Signatry	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 27, 2026	51-200	75 contacts →
	Indirect evidence “The Signatry inspires and facilitates revolutionary biblical generosity across generations.” Source: RevenueBase Database · checked Sep 27, 2026
23	Avalon Consulting Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	74 contacts →
	Partial evidence “Avalon is a full-service fundraising consulting agency helping nonprofits realize the full potential of their direct marketing programs through multi-channel fundraising…” Source: RevenueBase Database · checked Sep 27, 2026
24	Steier Group	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 27, 2026	51-200	74 contacts →
	Indirect evidence “INTRODUCING THE STEIER GROUP Based in Omaha, Nebraska, with offices in Alabama, Arizona, Arkansas, California, Colorado, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota…” Source: RevenueBase Database · checked Sep 27, 2026
25	Empower Success Corps	Indirect evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	51-200	74 contacts →
	Indirect evidence “At ESC, our mission is to empower nonprofits to achieve their goals & contribute to a more just and equitable world.” Source: RevenueBase Database · checked Sep 27, 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: charitable 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 charitable consulting firms.
Partial evidence: Its own public description names part of charitable consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name charitable 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 3,314 charitable consulting firms based in the United States

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Charitable consulting firms based in the United States at a glance

As of Sep 27, 2026

46.7%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

4.6%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,896

11-50

348

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,314 companies.

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 charitable 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “charitable 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 charitable 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 charitable consulting firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 8,072 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 27, 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.

Charitable consulting firms by metro

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 charitable 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 charitable consulting firms are there based in the United States?

RevenueBase identified 3,314 charitable consulting firms headquartered in the United States 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?

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

Which city has the most charitable consulting firms?

New York leads with 154 headquartered companies, followed by Washington (130) and Chicago (129).

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 8,072 verified decision-maker contacts tracked across these 3,314 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 27, 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.