Company lists · Data refreshed September 2026
Top 25 Nonprofit legal advocacy firms based in Washington, United States
RevenueBase identified 80 company matches for nonprofit legal advocacy firms associated with Washington, United States as of September 2026 and tracks 1,609 professional contacts across them, including 750 with verified work emails. Across the United States, Washington is the largest hub for this category.
This list covers company matches for nonprofit legal advocacy firms associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 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.
The 25 largest nonprofit legal advocacy firms based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 236 contacts → | ||||
Exact match “Cohen Milstein Sellers & Toll LLP champions the causes of real people-workers, consumers, small business owners, investors, and whistleblowers-working to deliver corporate reforms…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 155 contacts → | ||||
Exact match “Zuckerman Spaeder LLP is consistently recognized as a leading national litigation boutique.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 56 contacts → | ||||
Exact match “Relman Colfax PLLC is a national civil rights law firm, with a litigation practice focused on combating discrimination and obtaining equity, including in the areas of housing…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 56 contacts → | ||||
Exact match “The National Disability Rights Network (NDRN) is the nonprofit membership organization for the federally mandated Protection and Advocacy (P&A) Systems and Client Assistance…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 53 contacts → | ||||
Exact match “At CREW, we use aggressive legal actions, in-depth investigations, and innovative policy and reform work to achieve that vision.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 51 contacts → | ||||
Exact match “Advocacy Associates specializes in strategic grassroots and advocacy approaches designed to address the individual needs of our clients - no cookie cutter approaches are allowed.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 49 contacts → | ||||
Exact match “At Rising for Justice, we believe everyone deserves justice-today, tomorrow and always.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 43 contacts → | ||||
Exact match “National Legal Aid & Defender Association (NLADA), founded in 1911, is America’s oldest and largest nonprofit association devoted to excellence in the delivery of legal services…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 31 contacts → | ||||
Exact match “Drawing from the Jewish teachings of “Tzedek, tzedek tirdof,” or “Justice, justice you shall pursue,” Tzedek DC’s mission is to safeguard the legal rights and financial health of…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 28 contacts → | ||||
Exact match “DC Affordable Law Firm ("DCALF") is a nonprofit law firm in Washington, DC providing accessible and affordable family law, immigration, and probate legal services to hardworking…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 27 contacts → | ||||
Exact match “Webster, Chamberlain & Bean, LLP is the leading law firm in the United States specializing in the provision of a full range of legal services to tax-exempt organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 26 contacts → | ||||
Exact match “We practice advocacy-and only advocacy.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 26 contacts → | ||||
Exact match “Trister, Ross, Schadler & Gold, PLLC combines personalized client service with decades of broad experience and specialized legal expertise.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 25 contacts → | ||||
Exact match “Summit Legal Aid is a nonprofit organization dedicated to ensuring equal access to justice for vulnerable residents in a 10-county region.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 19 contacts → | ||||
Exact match “Gupta Wessler is the nation's premier plaintiff-side appellate boutique.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 18 contacts → | ||||
Exact match “The Washington Legal Clinic for the Homeless envisions a just and inclusive community for all residents of the District of Columbia, where housing is a human right and where every…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 15 contacts → | ||||
Exact match “Terris, Pravlik & Millian, LLP was founded by Bruce J.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 14 contacts → | ||||
Exact match “Critically acclaimed and nationally recognized, LobbyIt.com works on a completely different business model than other federal lobbying firms.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 12 contacts → | ||||
Exact match “Tenenbaum Law Group PLLC is a nationally recognized, eight-attorney boutique Washington, DC-based law firm specializing in the representation of nonprofit organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 12 contacts → | ||||
Exact match “WATKINSON MILLER PLLC is a law practice company based out of 1100 New Jersey Ave SE Suite 910, WASHINGTON, District of Columbia, United States.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 11 contacts → | ||||
Exact match “We are lawyers who seek to improve the world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “Klamp & Associates is a law firm dedicated exclusively to representing charitable organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 10 contacts → | ||||
Exact match “The National Association of Consumer Advocates (NACA) is a nationwide organization of more than 1500 members who represent and have represented hundreds of thousands of consumers…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 9 contacts → | ||||
Exact match “The National Student Legal Defense Network (“Student Defense”) is a non-profit organization that works, through litigation and advocacy, to advance students' rights to educational…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “nonprofit legal advocacy firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 80 nonprofit legal advocacy firms based in Washington, United States
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Nonprofit legal advocacy firms based in Washington, United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 80 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with Washington, United States whose business descriptions match “nonprofit legal advocacy firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 750 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Nonprofit legal advocacy firms by metro in the United States
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “nonprofit legal advocacy firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many nonprofit legal advocacy firms are there based in Washington, United States?
RevenueBase identified 80 company matches for nonprofit legal advocacy firms associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Cohen Milstein Sellers & Toll LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most nonprofit legal advocacy firms?
Washington leads the United States with 80 company records, followed by New York (75) and Chicago (52).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 750 professional contacts with verified work emails tracked across these 80 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 80 nonprofit legal advocacy firms based in Washington, United States. Start with a free account, no credit card.
Download this list →Related lists
Nonprofit legal advocacy firms by geography
- Nonprofit legal advocacy firms based in Chicago, United States
- Nonprofit legal advocacy firms based in Denver, United States
- Nonprofit legal advocacy firms based in Los Angeles, United States
- Nonprofit legal advocacy firms based in New York, United States
- Nonprofit legal advocacy firms based in San Francisco, United States
- Nonprofit legal advocacy firms based in Australia
- Nonprofit legal advocacy firms based in Brazil
- Nonprofit legal advocacy firms based in Canada
- Nonprofit legal advocacy firms based in the United Kingdom
- Nonprofit legal advocacy firms based in the United States
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.
More company lists
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- Lists A-Z
- New lists
- Nonprofit legal advocacy firms based in Chicago, United States
- Nonprofit legal advocacy firms based in Denver, United States
- Nonprofit legal advocacy firms based in Los Angeles, United States
- Nonprofit legal advocacy firms based in New York, United States
- Nonprofit legal advocacy firms based in San Francisco, United States
- Nonprofit legal advocacy firms based in Australia
Company intelligence · public preview
Top 25 nonprofit legal advocacy firms based in Washington, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 80 matching company records for nonprofit legal advocacy firms based in Washington, United States, with 1,609 tracked contacts and 750 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nonprofit legal advocacy firms based in Washington, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Cohen Milstein Sellers & Toll LLPcohenmilstein.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 236 contacts → |
“Cohen Milstein Sellers & Toll LLP champions the causes of real people-workers, consumers, small business owners, investors, and whistleblowers-working to deliver corporate reforms…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Zuckerman Spaeder LLPzuckerman.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 155 contacts → |
“Zuckerman Spaeder LLP is consistently recognized as a leading national litigation boutique.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Relman Colfax Pllcrelmanlaw.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 56 contacts → |
“Relman Colfax PLLC is a national civil rights law firm, with a litigation practice focused on combating discrimination and obtaining equity, including in the areas of housing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 56 contacts → |
“The National Disability Rights Network (NDRN) is the nonprofit membership organization for the federally mandated Protection and Advocacy (P&A) Systems and Client Assistance…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Citizens For Responsibility And Ethics In Washington Crewcitizensforethics.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 53 contacts → |
“At CREW, we use aggressive legal actions, in-depth investigations, and innovative policy and reform work to achieve that vision.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Advocacy Associatesadvocacyassociates.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 51 contacts → |
“Advocacy Associates specializes in strategic grassroots and advocacy approaches designed to address the individual needs of our clients - no cookie cutter approaches are allowed.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Rising For Justicerisingforjustice.orgHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 49 contacts → |
“At Rising for Justice, we believe everyone deserves justice-today, tomorrow and always.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 43 contacts → |
“National Legal Aid & Defender Association (NLADA), founded in 1911, is America’s oldest and largest nonprofit association devoted to excellence in the delivery of legal services…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Tzedek DCtzedekdc.orgHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 31 contacts → |
“Drawing from the Jewish teachings of “Tzedek, tzedek tirdof,” or “Justice, justice you shall pursue,” Tzedek DC’s mission is to safeguard the legal rights and financial health of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  DC Affordable LAW Firmdcaffordablelaw.orgHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 28 contacts → |
“DC Affordable Law Firm ("DCALF") is a nonprofit law firm in Washington, DC providing accessible and affordable family law, immigration, and probate legal services to hardworking…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Webster, Chamberlain & Bean LLPwc-b.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 27 contacts → |
“Webster, Chamberlain & Bean, LLP is the leading law firm in the United States specializing in the provision of a full range of legal services to tax-exempt organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cuneo, Gilbert & Laduca, LLPcuneolaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 26 contacts → |
“We practice advocacy-and only advocacy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Trister, Ross, Schadler & Gold, Pllctristerross.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 26 contacts → |
“Trister, Ross, Schadler & Gold, PLLC combines personalized client service with decades of broad experience and specialized legal expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Summit Legal AIDsummitlegal.orgHQ: Washington, PA, United StatesReported employees: 51-200 | Washington, PA, United States | 51-200 | Exact match | 25 contacts → |
“Summit Legal Aid is a nonprofit organization dedicated to ensuring equal access to justice for vulnerable residents in a 10-county region.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Gupta Wessler LLPguptawessler.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 19 contacts → |
“Gupta Wessler is the nation's premier plaintiff-side appellate boutique.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  The Washington Legal Clinic For The Homelesslegalclinic.orgHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 18 contacts → |
“The Washington Legal Clinic for the Homeless envisions a just and inclusive community for all residents of the District of Columbia, where housing is a human right and where every…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Terris, Pravlik & Millian, LLPtpmlaw.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 15 contacts → |
“Terris, Pravlik & Millian, LLP was founded by Bruce J.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Lobbyitlobbyit.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 14 contacts → |
“Critically acclaimed and nationally recognized, LobbyIt.com works on a completely different business model than other federal lobbying firms.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Tenenbaum LAW Group Pllctenenbaumlegal.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 12 contacts → |
“Tenenbaum Law Group PLLC is a nationally recognized, eight-attorney boutique Washington, DC-based law firm specializing in the representation of nonprofit organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Watkinson Miller Pllcwatkinsonmiller.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 12 contacts → |
“WATKINSON MILLER PLLC is a law practice company based out of 1100 New Jersey Ave SE Suite 910, WASHINGTON, District of Columbia, United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Handley Farah & Anderson Pllchfajustice.comHQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 11 contacts → |
“We are lawyers who seek to improve the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Klamp & Associates, P.Cklamplaw.comHQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 11 contacts → |
“Klamp & Associates is a law firm dedicated exclusively to representing charitable organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  National Association Of Consumer Advocatesconsumeradvocates.orgHQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 10 contacts → |
“The National Association of Consumer Advocates (NACA) is a nationwide organization of more than 1500 members who represent and have represented hundreds of thousands of consumers…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Sandler Reiff Lamb Rosenstein & Birkenstock, P.Csandlerreiff.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | National Student Legal Defense Networkdefendstudents.org HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 9 contacts → |
“The National Student Legal Defense Network (“Student Defense”) is a non-profit organization that works, through litigation and advocacy, to advance students' rights to educational…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 80 company matches
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Nonprofit legal advocacy firms: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
80 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 80 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Nonprofit legal advocacy firms by metro in the United States
Questions about this company list
What does Exact match mean for nonprofit legal advocacy firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nonprofit legal advocacy firms did RevenueBase find based in Washington, United States?
The saved snapshot records 80 matching company records, 1,609 tracked contacts and 750 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nonprofit legal advocacy firms by geography
- Nonprofit legal advocacy firms based in Chicago, United States
- Nonprofit legal advocacy firms based in Denver, United States
- Nonprofit legal advocacy firms based in Los Angeles, United States
- Nonprofit legal advocacy firms based in New York, United States
- Nonprofit legal advocacy firms based in San Francisco, United States
- Nonprofit legal advocacy firms based in Australia
- Nonprofit legal advocacy firms based in Brazil
- Nonprofit legal advocacy firms based in Canada
- Nonprofit legal advocacy firms based in the United Kingdom
- Nonprofit legal advocacy firms based in the United States
Cite this list
RevenueBase Data Team. Top 25 nonprofit legal advocacy firms based in Washington, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/nonprofit-legal-advocacy-firms/united-states/washington.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nonprofit legal advocacy firms based in Chicago, United States
- Nonprofit legal advocacy firms based in Denver, United States
- Nonprofit legal advocacy firms based in Los Angeles, United States
- Nonprofit legal advocacy firms based in New York, United States
- Nonprofit legal advocacy firms based in San Francisco, United States
- Nonprofit legal advocacy firms based in Australia
Company intelligence · public preview
Top 25 nonprofit legal advocacy firms based in Washington, United States
RevenueBase records 80 matching company records for nonprofit legal advocacy firms based in Washington, United States, with 1,609 tracked contacts and 750 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nonprofit legal advocacy firms based in Washington, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Cohen Milstein Sellers & Toll LLPcohenmilstein.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 236 contacts → |
“Cohen Milstein Sellers & Toll LLP champions the causes of real people-workers, consumers, small business owners, investors, and whistleblowers-working to deliver corporate reforms…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Zuckerman Spaeder LLPzuckerman.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 155 contacts → |
“Zuckerman Spaeder LLP is consistently recognized as a leading national litigation boutique.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Relman Colfax Pllcrelmanlaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 56 contacts → |
“Relman Colfax PLLC is a national civil rights law firm, with a litigation practice focused on combating discrimination and obtaining equity, including in the areas of housing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 56 contacts → |
“The National Disability Rights Network (NDRN) is the nonprofit membership organization for the federally mandated Protection and Advocacy (P&A) Systems and Client Assistance…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Citizens For Responsibility And Ethics In Washington Crewcitizensforethics.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 53 contacts → |
“At CREW, we use aggressive legal actions, in-depth investigations, and innovative policy and reform work to achieve that vision.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Advocacy Associatesadvocacyassociates.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 51 contacts → |
“Advocacy Associates specializes in strategic grassroots and advocacy approaches designed to address the individual needs of our clients - no cookie cutter approaches are allowed.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Rising For Justicerisingforjustice.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 49 contacts → |
“At Rising for Justice, we believe everyone deserves justice-today, tomorrow and always.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 43 contacts → |
“National Legal Aid & Defender Association (NLADA), founded in 1911, is America’s oldest and largest nonprofit association devoted to excellence in the delivery of legal services…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Tzedek DCtzedekdc.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 31 contacts → |
“Drawing from the Jewish teachings of “Tzedek, tzedek tirdof,” or “Justice, justice you shall pursue,” Tzedek DC’s mission is to safeguard the legal rights and financial health of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | DC Affordable LAW Firmdcaffordablelaw.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 28 contacts → |
“DC Affordable Law Firm ("DCALF") is a nonprofit law firm in Washington, DC providing accessible and affordable family law, immigration, and probate legal services to hardworking…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Webster, Chamberlain & Bean LLPwc-b.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 27 contacts → |
“Webster, Chamberlain & Bean, LLP is the leading law firm in the United States specializing in the provision of a full range of legal services to tax-exempt organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cuneo, Gilbert & Laduca, LLPcuneolaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 26 contacts → |
“We practice advocacy-and only advocacy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Trister, Ross, Schadler & Gold, Pllctristerross.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 26 contacts → |
“Trister, Ross, Schadler & Gold, PLLC combines personalized client service with decades of broad experience and specialized legal expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Summit Legal AIDsummitlegal.org HQ: Washington, PA, United StatesReported employees: 51-200 | Washington, PA, United States | 51-200 | Exact match | 25 contacts → |
“Summit Legal Aid is a nonprofit organization dedicated to ensuring equal access to justice for vulnerable residents in a 10-county region.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Gupta Wessler LLPguptawessler.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 19 contacts → |
“Gupta Wessler is the nation's premier plaintiff-side appellate boutique.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Washington Legal Clinic For The Homelesslegalclinic.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 18 contacts → |
“The Washington Legal Clinic for the Homeless envisions a just and inclusive community for all residents of the District of Columbia, where housing is a human right and where every…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Terris, Pravlik & Millian, LLPtpmlaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 15 contacts → |
“Terris, Pravlik & Millian, LLP was founded by Bruce J.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Lobbyitlobbyit.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 14 contacts → |
“Critically acclaimed and nationally recognized, LobbyIt.com works on a completely different business model than other federal lobbying firms.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Tenenbaum LAW Group Pllctenenbaumlegal.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 12 contacts → |
“Tenenbaum Law Group PLLC is a nationally recognized, eight-attorney boutique Washington, DC-based law firm specializing in the representation of nonprofit organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Watkinson Miller Pllcwatkinsonmiller.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 12 contacts → |
“WATKINSON MILLER PLLC is a law practice company based out of 1100 New Jersey Ave SE Suite 910, WASHINGTON, District of Columbia, United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Handley Farah & Anderson Pllchfajustice.com HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 11 contacts → |
“We are lawyers who seek to improve the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Klamp & Associates, P.Cklamplaw.com HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 11 contacts → |
“Klamp & Associates is a law firm dedicated exclusively to representing charitable organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | National Association Of Consumer Advocatesconsumeradvocates.org HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 10 contacts → |
“The National Association of Consumer Advocates (NACA) is a nationwide organization of more than 1500 members who represent and have represented hundreds of thousands of consumers…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sandler Reiff Lamb Rosenstein & Birkenstock, P.Csandlerreiff.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | National Student Legal Defense Networkdefendstudents.org HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 9 contacts → |
“The National Student Legal Defense Network (“Student Defense”) is a non-profit organization that works, through litigation and advocacy, to advance students' rights to educational…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Nonprofit legal advocacy firms: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
80 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 80 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Nonprofit legal advocacy firms by metro in the United States
Questions about this company list
What does Exact match mean for nonprofit legal advocacy firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nonprofit legal advocacy firms did RevenueBase find based in Washington, United States?
The saved snapshot records 80 matching company records, 1,609 tracked contacts and 750 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nonprofit legal advocacy firms by geography
- Nonprofit legal advocacy firms based in Chicago, United States
- Nonprofit legal advocacy firms based in Denver, United States
- Nonprofit legal advocacy firms based in Los Angeles, United States
- Nonprofit legal advocacy firms based in New York, United States
- Nonprofit legal advocacy firms based in San Francisco, United States
- Nonprofit legal advocacy firms based in Australia
- Nonprofit legal advocacy firms based in Brazil
- Nonprofit legal advocacy firms based in Canada
- Nonprofit legal advocacy firms based in the United Kingdom
- Nonprofit legal advocacy firms based in the United States
Cite this list
RevenueBase Data Team. Top 25 nonprofit legal advocacy firms based in Washington, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/nonprofit-legal-advocacy-firms/united-states/washington.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Nonprofit legal advocacy firms based in Chicago, United States
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- Nonprofit legal advocacy firms based in Los Angeles, United States
- Nonprofit legal advocacy firms based in New York, United States
- Nonprofit legal advocacy firms based in San Francisco, United States
- Nonprofit legal advocacy firms based in Australia