Company lists · Data refreshed September 2026

Top 11 Pro bono consulting firms based in Boston, United States

RevenueBase identified 27 pro bono consulting firms headquartered in Boston, United States as of September 2026 and tracks 332 professional contacts across them, including 139 with verified work emails. New York is the largest hub.

This list covers pro bono 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
27Companies
332Contacts tracked
139Verified emails
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The 11 largest pro bono consulting firms based in Boston, United States

Ranked by team size
Top 11 of 27 pro bono 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 pro bono 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
1Boston, MA, United StatesHQ checked Sep 5, 202611-5077

“The Volunteer Lawyers Project of the Boston Bar Association (VLP) is a private non-profit organization, established in 1977, that provides free civil legal assistance to…”

Source: company website · checked Sep 5, 2026
2
Empower Success CorpsIndirect 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
3Boston, 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
4
Development Guild DDIIndirect 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
5
Inspire INCPartial 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
6Boston, United StatesHQ checked Sep 5, 20261-1010

“MB Law Firm Consulting works with small to mid-sized law firms on a project or long-term basis to identify and implement efficiencies for growth and succession.”

Source: company website · checked Sep 5, 2026
7
The Numad GroupPartial 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
8
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
9
Morelli AssociatesPartial evidence
Boston, NH, United StatesHQ checked Sep 5, 20261-102

“Morelli Associates specializes in Non-Profit Business Consulting and Strategic Coaching for Staff and Board Leadership focused on Margin for Mission while eliminating…”

Source: company website · checked Sep 5, 2026
10
Chiron Strategy GroupIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 20261-101

“Chiron Strategy Group, a Boston-based small business consultancy, provides strategic and operational guidance to non-profit organizations, government agencies, and other social…”

Source: company website · checked Sep 5, 2026
11Boston, MA, United StatesHQ checked Sep 5, 20261-101

“Agility + Strategy+ Funding= Mission Impact Does your organization need to secure more funds for mission-critical work?”

Source: company website · checked Sep 5, 2026

Showing 11 of 27 pro bono consulting firms based in Boston, United States

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Pro bono consulting firms based in Boston, United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 94 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
17
11-50
7
51-200
2
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 27 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 pro bono 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 “pro bono 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 pro bono 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, 139 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.

Frequently asked

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

RevenueBase identified 27 pro bono 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?

Volunteer Lawyers Project Of The Boston BAR Association, headquartered in Boston, tops this list with the largest team on record.

Which city has the most pro bono consulting firms?

New York leads with 94 headquartered companies, followed by Chicago (76) and Washington (76).

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 139 verified decision-maker contacts tracked across these 27 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.