Company lists · Data refreshed September 2026

Top 25 Pro bono legal and accounting firms based in the United States

Name: Pro bono legal and accounting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 488 companies tracked

RevenueBase identified 488 pro bono legal and accounting firms headquartered in the United States as of September 2026 and tracks 6,416 professional contacts across them, including 2,970 with verified work emails and 2,896 with mobile numbers. New York is the largest hub.

This list covers pro bono legal and accounting 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

488Companies

6,416Contacts tracked

2,970Verified emails

2,896Mobile numbers

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The 25 largest pro bono legal and accounting firms based in the United States

Ranked by team size

Top 25 of 488 pro bono legal and accounting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to pro bono legal and accounting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	NEW York Legal Assistance Group	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	444 contacts →
	Partial evidence “New York Legal Assistance Group (NYLAG) is a leading civil legal services organization combatting economic, racial, and social injustices by advocating for people experiencing…” Source: RevenueBase Database · checked Sep 5, 2026
2	Connell Foley LLP	Indirect evidence	Roseland, NJ, United StatesHQ checked Sep 5, 2026	201-500	288 contacts →
	Indirect evidence “Since 1938, Connell Foley LLP has been unwavering in its commitment to meeting the needs of clients, employees, and the community while maintaining the highest ethical standards…” Source: RevenueBase Database · checked Sep 5, 2026
3	Prairie State Legal Services INC	Partial evidence	Rockford, IL, United StatesHQ checked Sep 5, 2026	51-200	198 contacts →
	Partial evidence “Prairie State Legal Services (PSLS) is a nonprofit law firm, serving 36 counties throughout Northern and Central Illinois.” Source: RevenueBase Database · checked Sep 5, 2026
4	Legal AID Services Of Oklahoma	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 5, 2026	51-200	185 contacts →
	Partial evidence “Legal Aid Services of Oklahoma is a non-profit law firm.” Source: RevenueBase Database · checked Sep 5, 2026
5	BAY Area Legal AID	Partial evidence	Oakland, CA, United StatesHQ checked Sep 5, 2026	51-200	179 contacts →
	Partial evidence “Bay Area Legal Aid (BayLegal) ensures fairness in the civil justice system for the most vulnerable members of our community.” Source: RevenueBase Database · checked Sep 5, 2026
6	Maslon LLP	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 5, 2026	51-200	178 contacts →
	Partial evidence “For 80 years, Maslon LLP has provided strategic legal counsel to the business community in Minnesota and nationwide.” Source: RevenueBase Database · checked Sep 5, 2026
7	Legal AID Center Of Southern Nevada	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 5, 2026	51-200	142 contacts →
	Partial 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, 2026
8	Mid-Minnesota Legal AID	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 5, 2026	51-200	136 contacts →
	Partial evidence “Mid-Minnesota Legal Aid (MMLA) is a nonprofit law firm, providing free legal advice and representation on civil law matters to people of limited income, people with disabilities…” Source: RevenueBase Database · checked Sep 5, 2026
9	Southern Minnesota Regional Legal Services, INC	Indirect evidence	St Paul, MN, United StatesHQ checked Sep 5, 2026	51-200	132 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
10	Community Legal Services	Partial evidence	Orlando, FL, United StatesHQ checked Sep 5, 2026	51-200	130 contacts →
	Partial evidence “Community Legal Services (CLS) has approximately 110 lawyers, advocates, and support staff working to provide civil legal aid for low to moderate income residents in Central…” Source: RevenueBase Database · checked Sep 5, 2026
11	Legal AID Bureau Of Buffalo, INC	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 5, 2026	51-200	118 contacts →
	Partial evidence “Established in 1912 and serving more than individuals annually, the Legal Aid Bureau of Buffalo is the largest and oldest provider of indigent legal services in Western New York.” Source: RevenueBase Database · checked Sep 5, 2026
12	Accounting AID Society	Partial evidence	Detroit, MI, United StatesHQ checked Sep 5, 2026	11-50	115 contacts →
	Partial evidence “Accounting Aid Society - Growing an Economy That Works for Everyone Accounting Aid Society (AAS) is a nonprofit organization that offers free tax help and counseling; financial…” Source: RevenueBase Database · checked Sep 5, 2026
13	BAY Area Legal Services	Partial evidence	Tampa, FL, United StatesHQ checked Sep 5, 2026	51-200	112 contacts →
	Partial evidence “Bay Area Legal Services is a nonprofit, public interest law firm.” Source: RevenueBase Database · checked Sep 5, 2026
14	Legal AID Of Nebraska	Partial evidence	Omaha, NE, United StatesHQ checked Sep 5, 2026	51-200	111 contacts →
	Partial evidence “Since 1963, Legal Aid of Nebraska has worked to provide disadvantaged individuals with quality legal advice and representation-something that those more fortunate take for granted.” Source: RevenueBase Database · checked Sep 5, 2026
15	Legal Services Of North Florida	Partial evidence	Tallahassee, FL, United StatesHQ checked Sep 5, 2026	51-200	106 contacts →
	Partial evidence “Legal Services of North Florida (LSNF) is a private non-profit corporation dedicated to providing free legal representation to low income people with civil legal problems.” Source: RevenueBase Database · checked Sep 5, 2026
16	Donahue Fitzgerald LLP	Partial evidence	Oakland, CA, United StatesHQ checked Sep 5, 2026	51-200	100 contacts →
	Partial evidence “Donahue Fitzgerald provides comprehensive legal services to business and non-profit entities at every stage of their lifecycle from seed, entity formation, and start-up through…” Source: RevenueBase Database · checked Sep 5, 2026
17	Community Legal AID	Partial evidence	Akron, OH, United StatesHQ checked Sep 5, 2026	51-200	99 contacts →
	Partial evidence “Legal Aid is a non-profit law firm serving Ohioans in Columbiana, Mahoning, Medina, Portage, Stark, Summit, Trumbull, and Wayne Counties.” Source: RevenueBase Database · checked Sep 5, 2026
18	Raffa, PC	Partial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	1,001-5,000	87 contacts →
	Partial evidence “Top accounting firm Raffa, P.C.” Source: RevenueBase Database · checked Sep 5, 2026
19	Legal Services Of Northern California	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 5, 2026	51-200	80 contacts →
	Partial evidence “Since 1956 Legal Services of Northern California (LSNC) has provided quality legal services that empower the poor to identify and defeat the causes and effects of poverty.” Source: RevenueBase Database · checked Sep 5, 2026
20	Volunteer Lawyers Project Of The Boston BAR Association	Partial evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	11-50	77 contacts →
	Partial 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, 2026
21	Legal AID Society Of Hawai'i	Partial evidence	Honolulu, HI, United StatesHQ checked Sep 5, 2026	51-200	74 contacts →
	Partial evidence “The Legal Aid Society of Hawaii is a public interest, not-for-profit law firm whose mission is to achieve fairness and justice through legal advocacy, outreach and education for…” Source: RevenueBase Database · checked Sep 5, 2026
22	Omega Accounting Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	70 contacts →
	Partial evidence “Omega Accounting Solutions is a financial and tax advisory based in Irvine, California that empowers small and medium-sized businesses (SMBs) to make better-informed decisions.” Source: RevenueBase Database · checked Sep 5, 2026
23	Nevada Legal Services	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 5, 2026	51-200	62 contacts →
	Partial evidence “The mission of Nevada Legal Services is to strengthen the community by ensuring fairness and providing equal access to justice for low income Nevadans.” Source: RevenueBase Database · checked Sep 5, 2026
24	Legal AID Of Arkansas	Indirect evidence	Jonesboro, AR, United StatesHQ checked Sep 5, 2026	11-50	57 contacts →
	Indirect evidence “We strive to create equal access to justice for all regardless of economic or social circumstances.” Source: RevenueBase Database · checked Sep 5, 2026
25	South Coastal Counties Legal Services, INC	Partial evidence	Fall River, MA, United StatesHQ checked Sep 5, 2026	11-50	51 contacts →
	Partial evidence “South Coastal Counties Legal Services (SCCLS) is a non-profit organization that offers free legal advice and free legal representation to low-income families and individuals in…” Source: RevenueBase Database · checked Sep 5, 2026

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 legal and accounting 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 legal and accounting firms.
Partial evidence: Its own public description names part of pro bono legal and accounting 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 legal and accounting 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 488 pro bono legal and accounting firms based in the United States

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Pro bono legal and accounting firms based in the United States at a glance

As of Sep 5, 2026

46.3%Verified-email coverage

45.1%Mobile-number coverage

13.1Average contacts per company

1-10Median size (employees)

4.1%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

328

11-50

117

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

2,7720–30

19031–60

161–90

090–180

7180+

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 legal and accounting 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 legal and accounting 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 legal and accounting 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 legal and accounting 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, 2,970 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

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 legal and accounting 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 legal and accounting firms are there based in the United States?

RevenueBase identified 488 pro bono legal and accounting 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?

NEW York Legal Assistance Group, headquartered in New York, tops this list with the largest team on record.

Which city has the most pro bono legal and accounting firms?

New York leads with 20 headquartered companies, followed by Chicago (13) and Washington (9).

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 2,970 verified decision-maker contacts tracked across these 488 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 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.