Company lists · Data refreshed September 2026

Top 11 Pro bono services developers based in the United States

RevenueBase identified 25 pro bono services developers headquartered in the United States as of September 2026 and tracks 387 professional contacts across them, including 125 with verified work emails. Boston is the largest hub.

This list covers pro bono services developers 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 19, 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 19, 2026 86% judged on-target in blind review
25Companies
387Contacts tracked
125Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 11 largest pro bono services developers based in the United States

Ranked by team size
Top 11 of 25 pro bono services developers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to pro bono services developers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBoston, MA, United StatesHQ checked Sep 19, 202611-5077 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 19, 2026
2Strong evidenceBoston, MA, United StatesHQ checked Sep 19, 2026n/a37 contacts →

Strong evidence

“SOAR strengthens nonprofits through collaborative, pro bono consulting that builds organizational capacity and deepens community impact while fostering an enriching learning…”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5036 contacts →

Indirect evidence

“Since ECHO's founding in 2002, we have worked with over for-profit and nonprofit organizations.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5035 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceOak Park, IL, United StatesHQ checked Sep 19, 20261-1023 contacts →

Indirect evidence

“More than 85 percent* of the civil legal needs of low-income Americans go unmet every year.”

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceDayton, OH, United StatesHQ checked Sep 19, 20261-106 contacts →

Strong evidence

“The Greater Dayton Volunteer Lawyers Project was founded in 1988 serving the Greater Miami Valley area in pro bono legal services for over 25 years.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“The Village Legal and Community Project is a non-profit organization dedicated to providing resources and programming to address the needs of Chicago communities.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceBirmingham, AL, United StatesHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“The Birmingham Volunteer Lawyers Program (BVLP) is a 501(c)(3) nonprofit corporation that provides free legal assistance to low income individuals in Jefferson County, Alabama.”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceCharlotte, NC, United StatesHQ checked Sep 19, 20261-104 contacts →

Strong evidence

“Charlotte Legal Initiative to Mobilize Businesses (CLIMB) provides pro bono business law services to historically under-represented entrepreneurs and small business owners of…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceSausalito, CA, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Lawyers For One America (LFOA) is an all volunteer legal services nonprofit.”

Source: RevenueBase Database · checked Sep 19, 2026
11Strong evidenceTallahassee, FL, United StatesHQ checked Sep 19, 20261-101 contacts →

Strong evidence

“Choose Your Pro Bono or Pro Bono Your Way.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 11 of 25 pro bono services developers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 125 reachable decision-makers.

Free signup · no credit card

View the full list →

Pro bono services developers based in the United States at a glance

As of Sep 19, 2026
32.3%Verified-email coverage
15.5Average contacts per company
1-10Median size (employees)
8.0%Largest-city concentration · Boston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
7
51-200
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 25 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 services developers, 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 services developers”. 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 services developers), 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 services developers, 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, 125 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 19, 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 services developers, 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 services developers are there based in the United States?

RevenueBase identified 25 pro bono services developers 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?

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 services developers?

Boston leads with 2 headquartered companies, followed by Chicago (2) and New York (2).

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 125 verified decision-maker contacts tracked across these 25 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 25 pro bono services developers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.