Company lists · Data refreshed September 2026

Top 24 Philanthropy consulting firms based in Boston, United States

Name: Philanthropy consulting firms based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 53 companies tracked

RevenueBase identified 53 philanthropy consulting firms headquartered in Boston, United States as of September 2026 and tracks 807 professional contacts across them, including 425 with verified work emails. New York is the largest hub.

This list covers philanthropy consulting firms headquartered in Boston, 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 21, 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 21, 2026 86% judged on-target in blind review

53Companies

807Contacts tracked

425Verified emails

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The 24 largest philanthropy consulting firms based in Boston, United States

Ranked by team size

Top 24 of 53 philanthropy consulting firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to philanthropy 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	The Bridgespan Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	443 contacts →
	Indirect evidence “The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Source: RevenueBase Database · checked Sep 21, 2026
2	Empower Success Corps	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 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 21, 2026
3	The Philanthropic Initiative TPI	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	33 contacts →
	Partial evidence “The Philanthropic Initiative (TPI) helps companies, foundations, families and individuals find innovative ways to maximize the impact of their giving.” Source: RevenueBase Database · checked Sep 21, 2026
4	GMA Foundations	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	28 contacts →
	Partial evidence “GMA Foundations helps you define a clear path to transformative philanthropy, and then walks the path with you as an ally and a guide.” Source: RevenueBase Database · checked Sep 21, 2026
5	TDC Nonprofit Management Consulting	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial evidence “TDC is a nonprofit management consulting and research firm that works across the nonprofit sector.” Source: RevenueBase Database · checked Sep 21, 2026
6	Development Guild DDI	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “We partner with nonprofit leaders to drive their missions forward with fresh perspectives and high-impact solutions through our 45+ years of experience in strategy, fundraising…” Source: RevenueBase Database · checked Sep 21, 2026
7	Inspire INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	22 contacts →
	Partial evidence “Founded in 1998, Inspire is a 501(c)(3) nonprofit offering management and strategy consulting services to leading nonprofit organizations across the United States.” Source: RevenueBase Database · checked Sep 21, 2026
8	Page Consulting LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “We partner with small and medium-sized nonprofits to build their capacity for fundraising success by strengthening their fundraising infrastructure, helping cultivate their unique…” Source: RevenueBase Database · checked Sep 21, 2026
9	Mott Philanthropic LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
10	The Numad Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “The Numad Group is communication, fundraising, strategic planning, and program evaluation consulting firm that primarily partners with nonprofits in the arts, education, and…” Source: RevenueBase Database · checked Sep 21, 2026
11	The Venti Group, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “Through a unique 100% focus on philanthropic operation services, The Venti Group will innovate and optimize your fundraising operations.” Source: RevenueBase Database · checked Sep 21, 2026
12	Sarah J Consulting	Indirect evidence	Boston, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Development leaders: Whether you're tasked with raising $1M or $100M, the stakes are super high.” Source: RevenueBase Database · checked Sep 21, 2026
13	Copley Raff INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Copley Raff is a U.S.” Source: RevenueBase Database · checked Sep 21, 2026
14	The Allen Company LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “To companies needing business development, political organizations needing an assist with communications, fundraising, or strategy, schools looking to reach the next level, or any…” Source: RevenueBase Database · checked Sep 21, 2026
15	Development Strategy Consultants	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Development Strategy strengthens organizations to maximize the full potential of their mission.” Source: RevenueBase Database · checked Sep 21, 2026
16	Sectorwind LLC	Strong evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Strong evidence “SectorWind is a boutique consulting firm that partners with philanthropy, nonprofits, and networks to build the financial strength, strategic clarity, and long-term adaptability…” Source: RevenueBase Database · checked Sep 21, 2026
17	MLM Strategies LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
18	Sage Advancement Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Sage Advancement Group is a fundraising, strategy and market research consulting firm serving nonprofits throughout New England.” Source: RevenueBase Database · checked Sep 21, 2026
19	Sisu Vantage	Indirect evidence	Boston, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “SISU Vantage is a team of globally based professionals who are passionate about individuals and organizations unleashing their potential for sustainable growth and social impact.” Source: RevenueBase Database · checked Sep 21, 2026
20	Agile Fundraising And Strategy Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “Agility + Strategy+ Funding= Mission Impact Does your organization need to secure more funds for mission-critical work?” Source: RevenueBase Database · checked Sep 21, 2026
21	RC Consulting Boston	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “RC Consulting helps small nonprofits increase revenue through resource-responsive, mission-driven fundraising strategies so that they can do more for the communities they serve.” Source: RevenueBase Database · checked Sep 21, 2026
22	Flowetik	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Marketing consultancy for nonprofits and philanthropic organizations.” Source: RevenueBase Database · checked Sep 21, 2026
23	Potenciar Advisors, LLC	Indirect evidence	Boston, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
24	Chiron Strategy Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “Chiron Strategy Group, a Boston-based small business consultancy, provides strategic and operational guidance to non-profit organizations, government agencies, and other social…” Source: RevenueBase Database · checked Sep 21, 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: philanthropy 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 philanthropy consulting firms.
Partial evidence: Its own public description names part of philanthropy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name philanthropy 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 24 of 53 philanthropy consulting firms based in Boston, United States

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Philanthropy consulting firms based in Boston, United States at a glance

As of Sep 21, 2026

52.7%Verified-email coverage

15.2Average contacts per company

1-10Median size (employees)

330.2%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 53 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 philanthropy 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 Boston, United States whose own description of what they do matches “philanthropy 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 philanthropy 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 philanthropy consulting firms, and records with no verified work email. Companies headquartered outside Boston 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, 425 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 21, 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.

Philanthropy consulting firms by metro in the United States

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 philanthropy 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 philanthropy consulting firms are there based in Boston, United States?

RevenueBase identified 53 philanthropy consulting firms headquartered in Boston, 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?

The Bridgespan Group, headquartered in Boston, tops this list with the largest team on record.

Which city has the most philanthropy consulting firms?

New York leads with 175 headquartered companies, followed by Washington (129) and Chicago (123).

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 425 verified decision-maker contacts tracked across these 53 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 21, 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.