Company lists · Data refreshed September 2026

Top 25 Nonprofit consulting firms based in Boston, United States

RevenueBase identified 85 nonprofit consulting firms headquartered in Boston, United States as of September 2026 and tracks 551 professional contacts across them, including 224 with verified work emails. New York is the largest hub.

This list covers nonprofit 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
85Companies
551Contacts tracked
224Verified emails
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The 25 largest nonprofit consulting firms based in Boston, United States

Ranked by team size
Top 25 of 85 nonprofit consulting firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names nonprofit consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Empower Success CorpsPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 202651-20074

“At ESC, our mission is to empower nonprofits to achieve their goals & contribute to a more just and equitable world.”

Source: company website · checked Sep 5, 2026
2Boston, MA, United StatesHQ checked Sep 5, 2026n/a37

“SOAR strengthens nonprofits through collaborative, pro bono consulting that builds organizational capacity and deepens community impact while fostering an enriching learning…”

Source: company website · checked Sep 5, 2026
3
The More Than Giving COPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 2026n/a31

“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: company website · checked Sep 5, 2026
4
GMA FoundationsIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 202611-5028

“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: company website · checked Sep 5, 2026
5Boston, MA, United StatesHQ checked Sep 5, 202611-5027

“TDC is a nonprofit management consulting and research firm that works across the nonprofit sector.”

Source: company website · checked Sep 5, 2026
6
Brightvine SolutionsStrong evidence
Boston, MA, United StatesHQ checked Sep 5, 202611-5026

“BrightVine is a full service, boutique consultancy providing nonprofit technology consulting and advisory services.”

Source: company website · checked Sep 5, 2026
7
Development Guild DDIPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 202611-5025

“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: company website · checked Sep 5, 2026
8
Inspire INCStrong evidence
Boston, MA, United StatesHQ checked Sep 5, 2026201-50022

“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: company website · checked Sep 5, 2026
9
Black FOX GlobalIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 202611-5021

“At Black Fox Global, we’re committed to helping you mobilize significant resources to break the cycle of urgency in fundraising, build capacity, and deepen your impact.”

Source: company website · checked Sep 5, 2026
10Boston, MA, United StatesHQ checked Sep 5, 202651-20013

“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: company website · checked Sep 5, 2026
11
Page Consulting LLCPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-108

“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: company website · checked Sep 5, 2026
12
Data Soul ResearchPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-108

“Data+Soul Research is a consulting firm that specializes in design, strategy, and evaluation for social impact.”

Source: company website · checked Sep 5, 2026
13
The Numad GroupStrong evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-107

“The Numad Group is communication, fundraising, strategic planning, and program evaluation consulting firm that primarily partners with nonprofits in the arts, education, and…”

Source: company website · checked Sep 5, 2026
14
Derby ManagementPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-107

“We're a hands-on management consulting company providing the value of deep expertise in improving sales productivity by 25% in less than a year.”

Source: company website · checked Sep 5, 2026
15
The Venti Group, LLCIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-106

“Through a unique 100% focus on philanthropic operation services, The Venti Group will innovate and optimize your fundraising operations.”

Source: company website · checked Sep 5, 2026
16
Sarah J ConsultingIndirect evidence
Boston, United StatesHQ checked Sep 5, 20261-105

“Development leaders: Whether you're tasked with raising $1M or $100M, the stakes are super high.”

Source: company website · checked Sep 5, 2026
17
Copley Raff INCIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-104

“Copley Raff is a U.S.”

Source: company website · checked Sep 5, 2026
18
Spencer Brenneman, LLCIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-104

“We help mission-driven organizations reframe their focus and remaster their message so that they can thrive in any environment.”

Source: company website · checked Sep 5, 2026
19
The Allen Company LLCIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-104

“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: company website · checked Sep 5, 2026
20Boston, MA, United StatesHQ checked Sep 5, 20261-103

“Development Strategy strengthens organizations to maximize the full potential of their mission.”

Source: company website · checked Sep 5, 2026
21
Semicircle SolutionsPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-103

“We provide accounting and finance management services to nonprofit organizations.”

Source: company website · checked Sep 5, 2026
22
Sectorwind LLCStrong evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-102

“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: company website · checked Sep 5, 2026
23
BettersectorPartial evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-102

“BetterSector LLC is a full-service consulting firm serving public sector agencies and non-profit organizations across the country.”

Source: company website · checked Sep 5, 2026
24
MLM Strategies LLCIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 202651-2002
Source: company website · checked Sep 5, 2026
25
Sisu VantageIndirect evidence
Boston, United StatesHQ checked Sep 5, 20261-102

“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: company website · checked Sep 5, 2026

Showing 25 of 85 nonprofit consulting firms based in Boston, United States

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

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 262 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
66
11-50
14
51-200
4
201-500
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 85 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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “nonprofit consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among nonprofit 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 an evidence 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, 224 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 5, 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 consulting firms by metro in the United States

Frequently asked

How many nonprofit consulting firms are there based in Boston, United States?

RevenueBase identified 85 nonprofit 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?

Empower Success Corps, headquartered in Boston, tops this list with the largest team on record.

Which city has the most nonprofit consulting firms?

New York leads with 262 headquartered companies, followed by Washington (250) and Chicago (193).

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 224 verified decision-maker contacts tracked across these 85 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 5, 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.