Company lists · Data refreshed September 2026
Top 25 Philanthropic consulting firms based in Boston, United States
RevenueBase identified 70 philanthropic consulting firms headquartered in Boston, United States as of September 2026 and tracks 1,856 professional contacts across them, including 818 with verified work emails. Across the United States, New York is the largest hub for this category (226 companies); Boston has 70.
This list covers philanthropic 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 14, 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.
The 25 largest philanthropic consulting firms based in Boston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 517 contacts → | ||||
Partial evidence “At FSG, we are a global nonprofit consulting firm committed to advancing equitable systems change.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 250 contacts → | ||||
Indirect evidence “Isaacson, Miller is one of the nation's premier executive search firms serving organizations that advance the public good.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 37 contacts → | ||||
Partial evidence “SOAR strengthens nonprofits through collaborative, pro bono consulting that builds organizational capacity and deepens community impact while fostering an enriching learning…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 31 contacts → | ||||
Indirect evidence “We give nonprofits with visionary leaders and compelling missions an affordable, on-demand staffing solution to supplement the bandwidth and skillsets of their volunteer force.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Indirect evidence “Acumen Financial Advantage is the financial performance partner of choice for mission-driven organizations specializing in optimizing programs that attract and retain top talent…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Partial evidence “TDC is a nonprofit management consulting and research firm that works across the nonprofit sector.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Indirect evidence “Invest in Others was founded by the financial services industry to amplify the charitable work of financial advisors and the institutions they work for.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Indirect evidence “Wingspan Legacy Partners, founded by Christina Wing, is a family business and family office advisory practice, providing global families, founders, and rising leaders with ongoing…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Partial evidence “We are seasoned professionals within the consulting field and former C-Suite executives who know what it takes to get the job done efficiently and on-time.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Partial evidence “Data+Soul Research is a consulting firm that specializes in design, strategy, and evaluation for social impact.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Partial evidence “Nubian Square Investment Advisors is an independent wealth management and investment consulting firm based in Massachusetts.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Copley Raff is a U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “We help mission-driven organizations reframe their focus and remaster their message so that they can thrive in any environment.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 14, 2026Thanks. The Data Team will review it. | |||||
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: philanthropic 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 philanthropic consulting firms.
- Partial evidence
- Its own public description names part of philanthropic consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name philanthropic 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 70 philanthropic consulting firms based in Boston, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 818 reachable decision-makers.
Free signup · no credit card
Philanthropic consulting firms based in Boston, United States at a glance
As of Sep 14, 2026Companies by employee count
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 70 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 philanthropic 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 “philanthropic 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 philanthropic 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 philanthropic 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, 818 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 14, 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.
Philanthropic consulting firms by metro in the United States
- Philanthropic consulting firms in New York226
- Philanthropic consulting firms in Washington175
- Philanthropic consulting firms in Chicago149
- Philanthropic consulting firms in Atlanta97
- Philanthropic consulting firms in Los Angeles96
- Philanthropic consulting firms in Seattle71
- Philanthropic consulting firms in San Francisco61
- Philanthropic consulting firms in Dallas59
- Philanthropic consulting firms in Denver55
- Philanthropic consulting firms in Philadelphia53
- Philanthropic consulting firms in Portland49
- Philanthropic consulting firms in Minneapolis46
- Philanthropic consulting firms in Austin45
- Philanthropic consulting firms in Houston44
- Philanthropic consulting firms in Phoenix40
- Philanthropic consulting firms in Indianapolis39
- Philanthropic consulting firms in San Diego35
- Philanthropic consulting firms in Miami29
- Philanthropic consulting firms in Nashville26
- Philanthropic consulting firms in Detroit25
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 philanthropic 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 philanthropic consulting firms are there based in Boston, United States?
RevenueBase identified 70 philanthropic 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?
FSG, headquartered in Boston, tops this list with the largest team on record.
Which city in the United States has the most philanthropic consulting firms?
New York leads the United States with 226 headquartered companies, followed by Washington (175) and Chicago (149). Boston has 70.
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 818 verified decision-maker contacts tracked across these 70 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 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 70 philanthropic consulting firms based in Boston, United States. Start with a free account, no credit card.
Download this list →Related lists
Philanthropic consulting firms by geography
- Philanthropic consulting firms based in the United States
- Philanthropic consulting firms based in Canada
- Philanthropic consulting firms based in the United Kingdom
- Philanthropic consulting firms based in France
- Philanthropic consulting firms based in Australia
- Philanthropic consulting firms based in Brazil
- Philanthropic consulting firms based in Germany
- Philanthropic consulting firms based in the Netherlands
- Philanthropic consulting firms based in Italy
- Philanthropic consulting firms based in Switzerland
- Philanthropic consulting firms based in Melbourne, Australia
- Philanthropic consulting firms based in Sydney, Australia
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Philanthropic consulting firms based in the United States
- Philanthropic consulting firms based in Canada
- Philanthropic consulting firms based in the United Kingdom
- Philanthropic consulting firms based in France
- Philanthropic consulting firms based in Australia
- Philanthropic consulting firms based in Brazil