Company lists · Data refreshed September 2026

Top 25 Philanthropic consulting firms based in the United States

Name: Philanthropic 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 5, 2026 3,997 companies tracked

RevenueBase identified 3,997 company matches for philanthropic consulting firms associated with the United States as of September 2026 and tracks 27,356 professional contacts across them, including 12,156 with verified work emails and 13,710 with mobile numbers. New York is the largest hub.

This list covers company matches for philanthropic consulting firms associated with the United States, 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 5, 2026.

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 5, 2026 How this list was built

3,997Companies

27,356Contacts tracked

12,156Verified emails

13,710Mobile numbers

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The 25 largest philanthropic consulting firms based in the United States

Ranked by team size

Top 25 of 3,997 company matches for philanthropic consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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	CCS Fundraising	Exact match	New York, NY, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
2	FSG	Exact match	Boston, MA, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
3	The Bridgespan Group	Exact match	Boston, MA, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
4	REN	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 5, 2026	201-500	378 contacts →
	Exact match “Ren is a driving force that powers people, ideas, and institutions for good.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Geller	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	51-200	310 contacts →
	Exact match “Geller provides financial services and strategic advisory to private companies and not-for-profit organizations.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	Nonprofit Hr, Powered By Onedigital	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
7	National Christian Foundation	Exact match	Alpharetta, GA, United StatesHQ recorded Sep 5, 2026	201-500	296 contacts →
	Exact match “At the National Christian Foundation (NCF), we understand the challenges that come with being entrusted with much.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	Foundation Source	Exact match	Fairfield, CT, United StatesHQ recorded Sep 5, 2026	201-500	268 contacts →
	Exact match “As the nation’s largest provider of foundation management services, we’re a trusted source for philanthropic expertise.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	JCA	Exact match	Chicago, IL, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
10	National Philanthropic Trust	Exact match	Jenkintown, PA, United StatesHQ recorded Sep 5, 2026	201-500	258 contacts →
	Exact match “National Philanthropic Trust is a public charity dedicated to providing philanthropic expertise to donors, foundations and financial institutions, enabling them to realize their…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Isaacson, Miller	Exact match	Boston, MA, United StatesHQ recorded Sep 5, 2026	201-500	250 contacts →
	Exact match “Isaacson, Miller is one of the nation's premier executive search firms serving organizations that advance the public good.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	TCC Group	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	n/a	232 contacts →
	Exact match “TCC Group collaborates with leaders to solve complex social problems.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Arabella Advisors	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	201-500	227 contacts →
	Exact match “Arabella Advisors is a professional services firm that provides administrative, operational, and strategic support to nonprofits, foundations, and individual donors.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	Nonprofit Finance Fund	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	51-200	212 contacts →
	Exact match “Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15	M R	Exact match	Washington, United StatesHQ recorded Sep 5, 2026	51-200	208 contacts →
	Exact match “We are M+R.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16	Council On Foundations	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	186 contacts →
	Exact match “The Council on Foundations is a nonprofit membership association that serves as a guide for philanthropies as they advance the greater good.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17	Global Impact	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	170 contacts →
	Exact match “Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18	AGP Allegiance Group & Pursuant	Exact match	Fargo, ND, United StatesHQ recorded Sep 5, 2026	51-200	137 contacts →
	Exact match “AGP partners with mission-driven organizations nationwide to strengthen donor engagement and support long-term, sustainable performance.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19	Amphil	Exact match	Oak Park, IL, United StatesHQ recorded Sep 5, 2026	51-200	136 contacts →
	Exact match “AmPhil exists to promote the art of civil association by helping philanthropists, charitable foundations, and nonprofit organizations grow and flourish through practical guidance…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20	Rockefeller Philanthropy Advisors	Exact match	New York, CA, United StatesHQ recorded Sep 5, 2026	51-200	136 contacts →
	Exact match “Rockefeller Philanthropy Advisors (RPA) accelerates philanthropy in pursuit of a just world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21	Vanguard Charitable	Exact match	Southeastern, PA, United StatesHQ recorded Sep 5, 2026	51-200	132 contacts →
	Exact match “Vanguard Charitable is a leading U.S.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22	The Acceleration Project	Exact match	Scarsdale, NY, United StatesHQ recorded Sep 5, 2026	11-50	131 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23	BWF	Exact match	Usa, United StatesHQ recorded Sep 5, 2026	51-200	125 contacts →
	Exact match “BWF Zuri is the nonprofit sector’s most comprehensive fundraising consulting company, helping organizations thrive in a rapidly changing landscape.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24	MAL Warwick Donordigital	Exact match	Berkeley, CA, United StatesHQ recorded Sep 5, 2026	51-200	112 contacts →
	Exact match “Our team of expert consultants develops innovative direct marketing-driven donor development programs for exceptional nonprofit causes like yours.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25	JMT Consulting	Exact match	Mount Juliet, TN, United StatesHQ recorded Sep 5, 2026	51-200	112 contacts →
	Exact match “Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.” Recorded in the RevenueBase company graph · Sep 5, 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 “philanthropic consulting firms”. 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 3,997 philanthropic consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 12,156 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Philanthropic consulting firms based in the United States at a glance

As of Sep 5, 2026

44.4%Verified-email coverage

50.1%Mobile-number coverage

6.8Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

3,392

11-50

488

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

11,3560–30

72831–60

761–90

690–180

59180+

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.
What qualifies: Company records associated with the United States whose business descriptions match “philanthropic consulting firms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 12,156 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 5, 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.

Philanthropic consulting firms by metro

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 “philanthropic consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many philanthropic consulting firms are there based in the United States?

RevenueBase identified 3,997 company matches for philanthropic consulting firms associated with the United States 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?

CCS Fundraising tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most philanthropic consulting firms?

New York leads with 244 company records, followed by Washington (175) and Chicago (149).

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 12,156 professional contacts with verified work emails tracked across these 3,997 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 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 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.