Company lists · Data refreshed September 2026

Top 25 Nonprofit board consulting firms based in the United States

Name: Nonprofit board 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 29, 2026 3,450 companies tracked

RevenueBase identified 3,450 company matches for nonprofit board consulting firms associated with the United States as of September 2026 and tracks 24,247 professional contacts across them, including 10,062 with verified work emails. New York is the largest hub.

This list covers company matches for nonprofit board 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 29, 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 29, 2026 How this list was built

3,450Companies

24,247Contacts tracked

10,062Verified emails

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The 25 largest nonprofit board consulting firms based in the United States

Ranked by team size

Top 25 of 3,450 company matches for nonprofit board consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Your Part-Time Controller, LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	501-1,000	775 contacts →
	Exact match “THE NONPROFIT ACCOUNTING SPECIALISTS.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Lucas Group	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	10001+	756 contacts →
	Exact match “Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	CCS Fundraising	Exact match	New York, NY, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4	Nonprofit Hr, Powered By Onedigital	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5	JCA	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
6	Capincrouse	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 29, 2026	51-200	262 contacts →
	Exact match “As a national full-service accounting and advisory firm exclusively serving nonprofit organizations, CapinCrouse provides professional solutions to organizations whose outcomes…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Isaacson, Miller	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8	Arabella Advisors	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9	M R	Exact match	Washington, United StatesHQ recorded Sep 29, 2026	51-200	208 contacts →
	Exact match “We are M+R.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Ncheng LLP	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	51-200	197 contacts →
	Exact match “As certified public accountants and expert financial advisors, we empower non-profits to achieve their mission.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Amphil	Exact match	Oak Park, IL, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
12	The Acceleration Project	Exact match	Scarsdale, NY, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
13	BWF	Exact match	Usa, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
14	JMT Consulting	Exact match	Mount Juliet, TN, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
15	Semler Brossy	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	109 contacts →
	Exact match “Semler Brossy is a leading independent consulting firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Zuri Group	Exact match	Bend, OR, United StatesHQ recorded Sep 29, 2026	51-200	106 contacts →
	Exact match “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Campbell & Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	51-200	102 contacts →
	Exact match “Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	ORR Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	99 contacts →
	Exact match “Orr Group was born out of a need for event management and fundraising support in the philanthropic sector.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Raffa, PC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1,001-5,000	87 contacts →
	Exact match “Top accounting firm Raffa, P.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Schultz & Williams	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	83 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Marts&lundy	Exact match	Lyndhurst, NJ, United StatesHQ recorded Sep 29, 2026	51-200	79 contacts →
	Exact match “Marts & Lundy serves as a trusted partner to mission-driven organizations whose bold aspirations are realized through the power of philanthropy.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Generis	Exact match	Johns Creek, GA, United StatesHQ recorded Sep 29, 2026	51-200	78 contacts →
	Exact match “Most faith-based organizations don't have a funding problem.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	D. Hilton Associates, INC	Exact match	The Woodlands, TX, United StatesHQ recorded Sep 29, 2026	11-50	77 contacts →
	Exact match “D.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Avalon Consulting Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	74 contacts →
	Exact match “Avalon is a full-service fundraising consulting agency helping nonprofits realize the full potential of their direct marketing programs through multi-channel fundraising…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Steier Group	Exact match	Omaha, NE, United StatesHQ recorded Sep 29, 2026	51-200	74 contacts →
	Exact match “INTRODUCING THE STEIER GROUP Based in Omaha, Nebraska, with offices in Alabama, Arizona, Arkansas, California, Colorado, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota…” Recorded in the RevenueBase company graph · Sep 29, 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 “nonprofit board 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 3,450 nonprofit board consulting firms based in the United States

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Nonprofit board consulting firms based in the United States at a glance

As of Sep 29, 2026

41.5%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,992

11-50

381

51-200

201-500

501-1,000

1,001-5,000

10001+

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 3,450 companies.

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 “nonprofit board 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 10,062 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 29, 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.

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

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

RevenueBase identified 3,450 company matches for nonprofit board 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?

Your Part-Time Controller, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most nonprofit board consulting firms?

New York leads with 181 company records, followed by Washington (133) and Chicago (132).

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 10,062 professional contacts with verified work emails tracked across these 3,450 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 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 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.