Company lists · Data refreshed September 2026
Top 25 Pro bono consulting firms based in the United States
RevenueBase identified 2,122 pro bono consulting firms headquartered in the United States as of September 2026 and tracks 18,345 professional contacts across them, including 4,116 with verified work emails and 6,666 with mobile numbers. New York is the largest hub.
This list covers pro bono consulting firms headquartered in the 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 5, 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 pro bono consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,751 contacts → | ||||
Indirect evidence “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 275 contacts → | ||||
Indirect evidence “Taproot Foundation is a nonprofit organization connecting communities and driving social change.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 265 contacts → | ||||
Partial evidence “JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 212 contacts → | ||||
Partial evidence “Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 208 contacts → | ||||
Indirect evidence “We are M+R.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 144 contacts → | ||||
Partial evidence “Harvard Undergraduate Consulting Group is a nonprofit student organization at Harvard dedicated to helping businesses grow and achieve their strategic goals.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 142 contacts → | ||||
Indirect evidence “Established in 1958, Legal Aid Center of Southern Nevada is a private, non-profit, 501(c)(3) organization that ensures equal access to justice through free legal advice and…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 131 contacts → | ||||
Indirect evidence “The Acceleration Project (TAP) is a nonprofit organization with a mission to unlock pathways to wealth creation and economic mobility by accelerating under-resourced small…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 125 contacts → | ||||
Partial evidence “BWF Zuri is the nonprofit sector’s most comprehensive fundraising consulting company, helping organizations thrive in a rapidly changing landscape.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 112 contacts → | ||||
Indirect evidence “Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 106 contacts → | ||||
Indirect evidence “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 102 contacts → | ||||
Partial evidence “Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 101 contacts → | ||||
Partial evidence “Hilltop Consultants is a consulting organization entirely run by Georgetown University undergraduates that executes and leads 6-7 strategy consulting projects each semester for…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 88 contacts → | ||||
Strong evidence “Consult Your Community (CYC) is a student-run organization that provides pro-bono consulting services to small businesses across the United States.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 83 contacts → | ||||
Partial evidence “Schultz & Williams is a national consulting firm dedicated to helping nonprofits of all types and sizes achieve financial stability, meet organizational goals, and support greater…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 77 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 72 contacts → | ||||
Partial evidence “Bostrom is a professional services firm offering comprehensive management, consulting and outsourcing to the not-for-profit community.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 72 contacts → | ||||
Partial evidence “BEACN is a student-run, non-profit business consulting organization at UC Berkeley.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 61 contacts → | ||||
Partial evidence “Freedman Consulting, LLC, a mission-driven firm, offers strategic consulting services to foundations, nonprofit organizations, and public interest coalitions, advising many of the…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 61 contacts → | ||||
Strong evidence “The Georgia Tech CYC chapter was founded in 2014 with the purpose of providing pro-bono consulting services to small businesses in the greater Atlanta area.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 56 contacts → | ||||
Indirect evidence “We help nonprofits amplify their impact to create more good in the world.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 56 contacts → | ||||
Indirect evidence “We all rise when nonprofits thrive.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 54 contacts → | ||||
Indirect evidence “BDO FMA exists to build a community of individuals with the confidence and skills to lead organizations that change the world.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 51 contacts → | ||||
Partial evidence “ESC provides high-quality, accessible coaching and consulting services for nonprofits throughout Southern California.” Source: RevenueBase Database · checked Sep 5, 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: pro bono 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 pro bono consulting firms.
- Partial evidence
- Its own public description names part of pro bono consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name pro bono 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 2,122 pro bono consulting firms based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 4,116 reachable decision-makers.
Free signup · no credit card
Pro bono consulting firms based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 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 the 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.
- 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 pro bono 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 pro bono consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 4,116 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.
Pro bono consulting firms by metro
- Pro bono consulting firms in New York94
- Pro bono consulting firms in Chicago76
- Pro bono consulting firms in Washington76
- Pro bono consulting firms in Atlanta50
- Pro bono consulting firms in Los Angeles49
- Pro bono consulting firms in Houston37
- Pro bono consulting firms in Dallas28
- Pro bono consulting firms in Boston27
- Pro bono consulting firms in Denver27
- Pro bono consulting firms in Philadelphia27
- Pro bono consulting firms in Seattle27
- Pro bono consulting firms in Portland26
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 pro bono 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 pro bono consulting firms are there based in the United States?
RevenueBase identified 2,122 pro bono consulting firms headquartered in the 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?
Bank Of The West, headquartered in Chicago, 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 4,116 verified decision-maker contacts tracked across these 2,122 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.
Ready to reach these companies? Verified emails and direct dials for all 2,122 pro bono consulting firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Pro bono consulting firms by geography
- Pro bono consulting firms based in Canada
- Pro bono consulting firms based in the United Kingdom
- Pro bono consulting firms based in France
- Pro bono consulting firms based in Brazil
- Pro bono consulting firms based in Italy
- Pro bono consulting firms based in Australia
- Pro bono consulting firms based in Germany
- Pro bono consulting firms based in Spain
- Pro bono consulting firms based in the Netherlands
- Pro bono consulting firms based in Sao Paulo, Brazil
- Pro bono consulting firms based in Toronto, Canada
- Pro bono consulting firms based in London, United Kingdom
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
- Pro bono consulting firms based in Canada
- Pro bono consulting firms based in the United Kingdom
- Pro bono consulting firms based in France
- Pro bono consulting firms based in Brazil
- Pro bono consulting firms based in Italy
- Pro bono consulting firms based in Australia