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, 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

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. Evidence rates how directly each company's own description names pro bono legal and accounting 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.
#	Company	Headquarters	Employees	Contacts
1	NEW York Legal Assistance GroupPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	444
	“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: company website · checked Sep 5, 2026
2	Connell Foley LLPIndirect evidence	Roseland, NJ, United StatesHQ checked Sep 5, 2026	201-500	288
	“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: company website · checked Sep 5, 2026
3	Prairie State Legal Services INCPartial evidence	Rockford, IL, United StatesHQ checked Sep 5, 2026	51-200	198
	“Prairie State Legal Services (PSLS) is a nonprofit law firm, serving 36 counties throughout Northern and Central Illinois.” Source: company website · checked Sep 5, 2026
4	Legal AID Services Of OklahomaPartial evidence	Oklahoma City, OK, United StatesHQ checked Sep 5, 2026	51-200	185
	“Legal Aid Services of Oklahoma is a non-profit law firm.” Source: company website · checked Sep 5, 2026
5	BAY Area Legal AIDPartial evidence	Oakland, CA, United StatesHQ checked Sep 5, 2026	51-200	179
	“Bay Area Legal Aid (BayLegal) ensures fairness in the civil justice system for the most vulnerable members of our community.” Source: company website · checked Sep 5, 2026
6	Maslon LLPPartial evidence	Minneapolis, MN, United StatesHQ checked Sep 5, 2026	51-200	178
	“For 80 years, Maslon LLP has provided strategic legal counsel to the business community in Minnesota and nationwide.” Source: company website · checked Sep 5, 2026
7	Legal AID Center Of Southern NevadaPartial evidence	Las Vegas, NV, United StatesHQ checked Sep 5, 2026	51-200	142
	“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: company website · checked Sep 5, 2026
8	Mid-Minnesota Legal AIDPartial evidence	Minneapolis, MN, United StatesHQ checked Sep 5, 2026	51-200	136
	“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: company website · checked Sep 5, 2026
9	Southern Minnesota Regional Legal Services, INCIndirect evidence	St Paul, MN, United StatesHQ checked Sep 5, 2026	51-200	132
	Source: company website · checked Sep 5, 2026
10	Community Legal ServicesPartial evidence	Orlando, FL, United StatesHQ checked Sep 5, 2026	51-200	130
	“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: company website · checked Sep 5, 2026
11	Legal AID Bureau Of Buffalo, INCPartial evidence	Buffalo, NY, United StatesHQ checked Sep 5, 2026	51-200	118
	“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: company website · checked Sep 5, 2026
12	Accounting AID SocietyPartial evidence	Detroit, MI, United StatesHQ checked Sep 5, 2026	11-50	115
	“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: company website · checked Sep 5, 2026
13	BAY Area Legal ServicesPartial evidence	Tampa, FL, United StatesHQ checked Sep 5, 2026	51-200	112
	“Bay Area Legal Services is a nonprofit, public interest law firm.” Source: company website · checked Sep 5, 2026
14	Legal AID Of NebraskaPartial evidence	Omaha, NE, United StatesHQ checked Sep 5, 2026	51-200	111
	“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: company website · checked Sep 5, 2026
15	Legal Services Of North FloridaPartial evidence	Tallahassee, FL, United StatesHQ checked Sep 5, 2026	51-200	106
	“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: company website · checked Sep 5, 2026
16	Donahue Fitzgerald LLPPartial evidence	Oakland, CA, United StatesHQ checked Sep 5, 2026	51-200	100
	“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: company website · checked Sep 5, 2026
17	Community Legal AIDPartial evidence	Akron, OH, United StatesHQ checked Sep 5, 2026	51-200	99
	“Legal Aid is a non-profit law firm serving Ohioans in Columbiana, Mahoning, Medina, Portage, Stark, Summit, Trumbull, and Wayne Counties.” Source: company website · checked Sep 5, 2026
18	Raffa, PCPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	1,001-5,000	87
	“Top accounting firm Raffa, P.C.” Source: company website · checked Sep 5, 2026
19	Legal Services Of Northern CaliforniaPartial evidence	Sacramento, CA, United StatesHQ checked Sep 5, 2026	51-200	80
	“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: company website · checked Sep 5, 2026
20	Volunteer Lawyers Project Of The Boston BAR AssociationPartial evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	11-50	77
	“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
21	Legal AID Society Of Hawai'iPartial evidence	Honolulu, HI, United StatesHQ checked Sep 5, 2026	51-200	74
	“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: company website · checked Sep 5, 2026
22	Omega Accounting SolutionsPartial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	70
	“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: company website · checked Sep 5, 2026
23	Nevada Legal ServicesPartial evidence	Las Vegas, NV, United StatesHQ checked Sep 5, 2026	51-200	62
	“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: company website · checked Sep 5, 2026
24	Legal AID Of ArkansasIndirect evidence	Jonesboro, AR, United StatesHQ checked Sep 5, 2026	11-50	57
	“We strive to create equal access to justice for all regardless of economic or social circumstances.” Source: company website · checked Sep 5, 2026
25	South Coastal Counties Legal Services, INCPartial evidence	Fall River, MA, United StatesHQ checked Sep 5, 2026	11-50	51
	“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: company website · checked Sep 5, 2026

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

1-10Median size (employees)

New YorkLargest hub · 20 HQs

2,896Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

328

11-50

117

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

2,772

31–60

190

61–90

90–180

180+

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 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 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.
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 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, 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

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 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.