Company lists · Data refreshed September 2026

Top 25 Nonprofit capacity building organizations based in the United States

Name: Nonprofit capacity building organizations based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 3,064 companies tracked

RevenueBase identified 3,064 nonprofit capacity building organizations headquartered in the United States as of September 2026 and tracks 20,586 professional contacts across them, including 4,962 with verified work emails. New York is the largest hub.

This list covers nonprofit capacity building organizations 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 17, 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 17, 2026 86% judged on-target in blind review

3,064Companies

20,586Contacts tracked

4,962Verified emails

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The 25 largest nonprofit capacity building organizations based in the United States

Ranked by team size

Top 25 of 3,064 nonprofit capacity building organizations based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit capacity building organizations: 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	Nonprofit Finance Fund	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 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 17, 2026
2	M R	Indirect evidence	Washington, United StatesHQ checked Sep 17, 2026	51-200	208 contacts →
	Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 17, 2026
3	FES	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 17, 2026	51-200	181 contacts →
	Partial evidence “FES is a nonprofit foundation that provides support to communities and nonprofit organizations so they can focus on fulfilling their missions.” Source: RevenueBase Database · checked Sep 17, 2026
4	Amphil	Partial evidence	Oak Park, IL, United StatesHQ checked Sep 17, 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 17, 2026
5	Community Resource Center	Partial evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	n/a	128 contacts →
	Partial evidence “Community Resource Center (CRC) creates opportunities, tools, and strategies to develop nonprofits and community groups to strengthen Colorado.” Source: RevenueBase Database · checked Sep 17, 2026
6	BWF	Partial evidence	Usa, United StatesHQ checked Sep 17, 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 17, 2026
7	The Table Group	Indirect evidence	Lafayette, CA, United StatesHQ checked Sep 17, 2026	11-50	123 contacts →
	Indirect evidence “We teach leaders how to make work more effective and less dysfunctional and how to help their employees be more fulfilled and less miserable.” Source: RevenueBase Database · checked Sep 17, 2026
8	Campbell & Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
9	TSNE	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	201-500	100 contacts →
	Indirect evidence “At Third Sector New England, Inc.(TSNE) we know that change is possible and that change can be activated within people and communities.” Source: RevenueBase Database · checked Sep 17, 2026
10	Schultz & Williams	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 17, 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 17, 2026
11	School&main Institute	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	n/a	83 contacts →
	Indirect evidence “We are a not-for-profit organization that specializes in developing collaborative responses to issues in education, workforce, youth and community development.” Source: RevenueBase Database · checked Sep 17, 2026
12	Humentum	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “Humentum is a global nonprofit that unlocks the strategic power of operating models for social good organizations.” Source: RevenueBase Database · checked Sep 17, 2026
13	Empower Success Corps	Partial evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	51-200	74 contacts →
	Partial 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 17, 2026
14	Community Boost	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	71 contacts →
	Partial evidence “We are the nonprofit sector’s expert’s expert.” Source: RevenueBase Database · checked Sep 17, 2026
15	The Center For Nonprofit Management CNM	Partial evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	11-50	67 contacts →
	Partial evidence “CNM provides strategic data expertise and leading-edge technology to nonprofits with the support of foundations and corporations.” Source: RevenueBase Database · checked Sep 17, 2026
16	Clutch	Indirect evidence	Rancho Cordova, CA, United StatesHQ checked Sep 17, 2026	51-200	66 contacts →
	Indirect evidence “Real Solutions.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ascend Nonprofit Solutions	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	201-500	64 contacts →
	Partial evidence “About Us Ascend Nonprofit Solutions is a nonprofit agency located in Charlotte, NC dedicated to strengthening nonprofits with access to services and facilities that lead to…” Source: RevenueBase Database · checked Sep 17, 2026
18	Social Current	Indirect evidence	Sturtevant, WI, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence “Social Current activates the power of the social sector by bringing together a dynamic network of human/social service organizations and partners.” Source: RevenueBase Database · checked Sep 17, 2026
19	Cedarstone	Partial evidence	Wheaton, IL, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Partial evidence “We began as one friend helping another establish a nonprofit in 1993.” Source: RevenueBase Database · checked Sep 17, 2026
20	The Focus Group	Partial evidence	St Augustine, FL, United StatesHQ checked Sep 17, 2026	11-50	57 contacts →
	Partial evidence “Founded in 1982, The FOCUS Group has served nonprofits for nearly four decades.” Source: RevenueBase Database · checked Sep 17, 2026
21	Environmental Incentives INC	Indirect evidence	Encinitas, CA, United StatesHQ checked Sep 17, 2026	11-50	56 contacts →
	Indirect evidence “Environmental Incentives is a Certified B Corporation that develops tailored solutions for our clients.” Source: RevenueBase Database · checked Sep 17, 2026
22	Dickersonbakker	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 17, 2026	11-50	56 contacts →
	Partial evidence “We help nonprofits amplify their impact to create more good in the world.” Source: RevenueBase Database · checked Sep 17, 2026
23	501 Commons	Partial evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	51-200	56 contacts →
	Partial evidence “We all rise when nonprofits thrive.” Source: RevenueBase Database · checked Sep 17, 2026
24	Boardsource	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	11-50	53 contacts →
	Partial evidence “BoardSource envisions a future where the nonprofit community has the leadership to fulfill its purpose and create a just world where all can thrive.” Source: RevenueBase Database · checked Sep 17, 2026
25	Executive Service Corps Of Southern California	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	51-200	51 contacts →
	Partial evidence “ESC provides high-quality, accessible coaching and consulting services for nonprofits throughout Southern California.” Source: RevenueBase Database · checked Sep 17, 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: nonprofit capacity building organizations. 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 nonprofit capacity building organizations.
Partial evidence: Its own public description names part of nonprofit capacity building organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit capacity building organizations. 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 3,064 nonprofit capacity building organizations based in the United States

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Nonprofit capacity building organizations based in the United States at a glance

As of Sep 17, 2026

24.1%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,751

11-50

265

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 3,064 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 nonprofit capacity building organizations, 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 “nonprofit capacity building organizations”. 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 capacity building organizations), 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 capacity building organizations, 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, 4,962 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 17, 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 capacity building organizations 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 nonprofit capacity building organizations, 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 capacity building organizations are there based in the United States?

RevenueBase identified 3,064 nonprofit capacity building organizations 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?

Nonprofit Finance Fund, headquartered in New York, tops this list with the largest team on record.

Which city has the most nonprofit capacity building organizations?

New York leads with 113 headquartered companies, followed by Washington (111) and Chicago (103).

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 4,962 verified decision-maker contacts tracked across these 3,064 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 17, 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.