Company lists · Data refreshed September 2026

Top 25 Foundation consulting firms worldwide

Name: Foundation consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,227 companies tracked

RevenueBase identified 3,227 foundation consulting firms worldwide as of September 2026 and tracks 13,537 professional contacts across them, including 4,427 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers foundation 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 28, 2026. Country and city lists for foundation 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 28, 2026 86% judged on-target in blind review

3,227Companies

13,537Contacts tracked

4,427Verified emails

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The 25 largest foundation consulting firms worldwide

Ranked by team size

Top 25 of 3,227 foundation consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to foundation 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	Bauer Foundation Corp	Indirect evidence	Odessa, FL, United StatesHQ checked Sep 28, 2026	201-500	475 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
2	C & M Consultores S.A.S	Indirect evidence	Bogotá, ColombiaHQ checked Sep 28, 2026	51-200	304 contacts →
	Indirect evidence “C&M Consultores S.A.” Source: RevenueBase Database · checked Sep 28, 2026
3	Arabella Advisors	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	201-500	227 contacts →
	Partial 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 28, 2026
4	Business Consulting	Partial evidence	AzerbaijanHQ checked Sep 28, 2026	n/a	181 contacts →
	Partial evidence “Consulting, Planning, Design, Programming” Source: RevenueBase Database · checked Sep 28, 2026
5	BWF	Partial evidence	Usa, United StatesHQ checked Sep 28, 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 28, 2026
6	Trevi Foundations Nigeria Limited	Partial evidence	Gbagada, NigeriaHQ checked Sep 28, 2026	501-1,000	113 contacts →
	Partial evidence “We are Foundations Specialist that have been serving in Nigeria with over 40 years of experience.” Source: RevenueBase Database · checked Sep 28, 2026
7	Zuri Group	Indirect evidence	Bend, OR, United StatesHQ checked Sep 28, 2026	51-200	106 contacts →
	Indirect evidence “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Source: RevenueBase Database · checked Sep 28, 2026
8	Campbell & Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
9	KCI	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	101 contacts →
	Indirect evidence “At KCI, we are a firm focused on values and people…both ours and yours.” Source: RevenueBase Database · checked Sep 28, 2026
10	Schultz & Williams	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
11	Marts&lundy	Indirect evidence	Lyndhurst, NJ, United StatesHQ checked Sep 28, 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 28, 2026
12	RAM Jack	Partial evidence	Ada, OK, United StatesHQ checked Sep 28, 2026	51-200	74 contacts →
	Partial evidence “Ram Jack pursues our commitment to Quality First in our foundation repair and new foundation solutions in both residential and commercial applications.” Source: RevenueBase Database · checked Sep 28, 2026
13	ELD Engineering, INC	Indirect evidence	Forney, TX, United StatesHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “Eric L.” Source: RevenueBase Database · checked Sep 28, 2026
14	Akila Ingénierie	Indirect evidence	Epinay Sur Seine, FranceHQ checked Sep 28, 2026	11-50	73 contacts →
	Indirect evidence “Akila Ingénierie est un bureau d'études en ingénierie du bâtiment à taille humaine et proche de ses clients.” Source: RevenueBase Database · checked Sep 28, 2026
15	CGL Fundações	Indirect evidence	Itabira, BrazilHQ checked Sep 28, 2026	51-200	66 contacts →
	Indirect evidence “A CGL Fundações iniciou suas atividades em 1997 e atua em Fundações e serviços especiais de engenharia.” Source: RevenueBase Database · checked Sep 28, 2026
16	Lautman Maska Neill & Company	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	64 contacts →
	Partial evidence “Lautman Maska Neill & Company is an award-winning direct response consulting firm specializing in fully-integrated fundraising exclusively for nonprofits.” Source: RevenueBase Database · checked Sep 28, 2026
17	Freedman Consulting, LLC	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	61 contacts →
	Strong evidence “Freedman Consulting, LLC, a mission-driven firm, offers strategic consulting services to foundations, nonprofit organizations, and public interest coalitions, advising many of the…” Source: RevenueBase Database · checked Sep 28, 2026
18	Protex The PT Xperts	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 28, 2026	51-200	60 contacts →
	Partial evidence “Residential Projects – Recommendations for subdivision home foundations (individual custom lots up to lots), apartments, and condominiums from 1 to 25 stories with and without…” Source: RevenueBase Database · checked Sep 28, 2026
19	Dickersonbakker	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	11-50	56 contacts →
	Indirect evidence “We help nonprofits amplify their impact to create more good in the world.” Source: RevenueBase Database · checked Sep 28, 2026
20	Elevate Smart Grants For Powerful Social Change	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	55 contacts →
	Indirect evidence “Elevate is a woman-owned and woman-led business established to help nonprofit organizations of all sizes build, sustain, and grow effective grant programs.” Source: RevenueBase Database · checked Sep 28, 2026
21	Isherwood Geostructural Engineers	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 28, 2026	11-50	54 contacts →
	Strong evidence “Isherwood is a consulting firm specializing in geostructural, geotechnical, and foundation engineering for new and restoration projects in Toronto, Vancouver, and throughout…” Source: RevenueBase Database · checked Sep 28, 2026
22	BDO FMA	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	54 contacts →
	Indirect evidence “BDO FMA exists to build a community of individuals with the confidence and skills to lead organizations that change the world.” Source: RevenueBase Database · checked Sep 28, 2026
23	Cargill Associates	Partial evidence	Fort Worth, United StatesHQ checked Sep 28, 2026	11-50	54 contacts →
	Partial evidence “Cargill Associates is a full-service national fundraising consulting firm committed to tailoring carefully designed programs to meet the needs of each client.” Source: RevenueBase Database · checked Sep 28, 2026
24	Redstone Strategy Group	Partial evidence	Boulder, CO, United StatesHQ checked Sep 28, 2026	11-50	50 contacts →
	Partial evidence “Redstone is a boutique consulting firm with offices in California, Colorado, and New York.” Source: RevenueBase Database · checked Sep 28, 2026
25	Coxe Curry & Associates	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	11-50	49 contacts →
	Partial evidence “Coxe Curry & Associates is the Atlanta consulting firm creating the strategies and connections that help nonprofits thrive.” Source: RevenueBase Database · checked Sep 28, 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: foundation 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 foundation consulting firms.
Partial evidence: Its own public description names part of foundation consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name foundation 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 3,227 foundation consulting firms worldwide

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Foundation consulting firms worldwide at a glance

As of Sep 28, 2026

32.7%Verified-email coverage

4.2Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,770

11-50

369

51-200

201-500

501-1,000

10001+

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 foundation 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 foundation consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “foundation 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 foundation 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 foundation 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, 4,427 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 28, 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.

Foundation consulting firms by location

17 lists · largest first

Every Foundation 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 foundation 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 foundation consulting firms are there worldwide?

RevenueBase identified 3,227 foundation 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?

Bauer Foundation Corp, headquartered in Odessa, tops this list with the largest team on record.

Which country has the most foundation consulting firms?

The United States leads with 1,778 companies, followed by Canada (153) and Brazil (47). Every foundation consulting firms list by country and city is linked on this page.

Which city has the most foundation consulting firms?

New York leads with 78 headquartered companies, followed by Chicago (61) and Washington (60).

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 4,427 verified decision-maker contacts tracked across these 3,227 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 28, 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.