Company lists · Data refreshed September 2026

Top 25 Pro bono consulting firms based in New York, United States

RevenueBase identified 94 pro bono consulting firms headquartered in New York, United States as of September 2026 and tracks 755 professional contacts across them, including 253 with verified work emails. New York is the largest hub.

This list covers pro bono consulting firms headquartered in New York, 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
94Companies
755Contacts tracked
253Verified emails
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The 25 largest pro bono consulting firms based in New York, United States

Ranked by team size
Top 25 of 94 pro bono consulting firms based in New York, 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
1
Nonprofit Finance FundPartial evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200212

“Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…”

Source: company website · checked Sep 5, 2026
2
BDO FMAIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5054

“BDO FMA exists to build a community of individuals with the confidence and skills to lead organizations that change the world.”

Source: company website · checked Sep 5, 2026
3
Start Small Think BIGIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5043

“Start Small Think Big is a nonprofit that helps small business owners from marginalized communities with limited access to the resources needed to create thriving businesses.”

Source: company website · checked Sep 5, 2026
4New York, NY, United StatesHQ checked Sep 5, 202611-5035

“Lawyers Alliance for New York is the leading provider of business and transactional legal services for nonprofit organizations and social enterprises that are improving the…”

Source: company website · checked Sep 5, 2026
5New York, NY, United StatesHQ checked Sep 5, 2026n/a33

“National Executive Services Corps (NESC) is a nonprofit professional services firm offering high-quality and affordable management consulting, executive search, and financial…”

Source: company website · checked Sep 5, 2026
6
Advance NYCPartial evidence
New York, United StatesHQ checked Sep 5, 202611-5026

“Advance NYC is a leading consulting firm dedicated to meeting the flexible, on-demand needs of non-profits.”

Source: company website · checked Sep 5, 2026
7
Wingo NYCPartial evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5024

“Founded in 1996, Wingo is a fundraising and design consulting firm for social, cultural and environmental change.”

Source: company website · checked Sep 5, 2026
8New York, NY, United StatesHQ checked Sep 5, 20261-1020

“New York Professional Advisors for Community Entrepreneurs (NYPACE) is a non-profit organization formed to stimulate job creation and sustainable economic development by providing…”

Source: company website · checked Sep 5, 2026
9
Capital Campaign PROPartial evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5016

“At Capital Campaign Pro, we believe you don’t just need another consultant.”

Source: company website · checked Sep 5, 2026
10
Perry Davis AssociatesIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5012

“Since 1986 Perry Davis Associates, Inc (PDA) has been providing outstanding services to non-profits both within the US and internationally.”

Source: company website · checked Sep 5, 2026
11New York, NY, United StatesHQ checked Sep 5, 20261-1011

“Our mission is simple.”

Source: company website · checked Sep 5, 2026
12
Hudson FerrisIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5010

“With over 50 years of collective professional fundraising experience, we enable social impact leaders to secure the resources they need to implement their vision and achieve…”

Source: company website · checked Sep 5, 2026
13
Cause EffectiveIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5010

“For more than 35 years, Cause Effective has strengthened the nonprofit sector by helping over nonprofits build sustainable communities of supporters.”

Source: company website · checked Sep 5, 2026
14
DS Consulting Group LLCPartial evidence
New York, NY, United StatesHQ checked Sep 5, 202611-506

“DS Consulting Group, LLC (DSCG) is a boutique fundraising and event planning firm.”

Source: company website · checked Sep 5, 2026
15
Bash AdvisoryIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261-106

“Bash Advisory is a collaborative and results-driven consultancy that partners with nonprofits and philanthropies to drive meaningful change.”

Source: company website · checked Sep 5, 2026
16
Deep BreadthIndirect evidence
New York, United StatesHQ checked Sep 5, 20261-105

“Deep Breadth serves as thought and action partners to ensure leaders, strategies, and programs across the non-profit ecosystem have the best chance to deliver long-term social…”

Source: company website · checked Sep 5, 2026
17
NPSCGPartial evidence
New York, NY, United StatesHQ checked Sep 5, 20261-104

“NPSCG is a consulting agency helping nonprofit organizations to reach their full potential.”

Source: company website · checked Sep 5, 2026
18
Paragon Strategic InsightsIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261-103

“The Paragon Strategic Insights’ (PSI) team has over 50 years of experience, driving strategic direction to fulfill organizations’ missions.”

Source: company website · checked Sep 5, 2026
19
Lg. PhilanthropyIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261-103

“LG.”

Source: company website · checked Sep 5, 2026
20
1 1 AdvisoryIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261-103

“1:1 provides strategic and business planning, grantmaking and advising, research, evaluation, facilitation, and coaching services for philanthropies and nonprofits.”

Source: company website · checked Sep 5, 2026
21
Nonprofit VelocityIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261-102

“Enduring social impact requires more than good intentions.”

Source: company website · checked Sep 5, 2026
22New York, NY, United StatesHQ checked Sep 5, 20261-102

“VISION: Inheritance Consulting envisions a world in which nonprofits have the freedom & flexibility to be in a constant state of discovery, re-evaluation, re-invention and…”

Source: company website · checked Sep 5, 2026
23
HarvestPartial evidence
New York, NY, United StatesHQ checked Sep 5, 20261-101

“Harvest is a bespoke consulting firm dedicated to fostering transformational social change through fundraising and development.”

Source: company website · checked Sep 5, 2026
24New York, NY, United StatesHQ checked Sep 5, 20261-101

“Monica Yehle, President of M4 Consulting Services, LLC, brings with her 40 years of experience in corporate, nonprofit, business, institutional communications and development, as…”

Source: company website · checked Sep 5, 2026
25
A.M. Worldwide AdvisoryIndirect evidence
New York, United StatesHQ checked Sep 5, 20261-101

“We provide strategic advisory services to social enterprises, non-profits, and start-ups.”

Source: company website · checked Sep 5, 2026

Showing 25 of 94 pro bono consulting firms based in New York, United States

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Pro bono consulting firms based in New York, 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
77
11-50
15
51-200
2

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 New York, over 94 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 New York, 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 New York 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, 253 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 New York, United States?

RevenueBase identified 94 pro bono consulting firms headquartered in New York, 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?

Nonprofit Finance Fund, headquartered in New York, 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 253 verified decision-maker contacts tracked across these 94 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.