Company lists · Data refreshed September 2026
Top 25 Worker advocacy groups based in the United States
RevenueBase identified 294 company matches for worker advocacy groups associated with the United States as of September 2026 and tracks 6,048 professional contacts across them, including 1,920 with verified work emails. New York is the largest hub.
This list covers company matches for worker advocacy groups associated with the 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 22, 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 worker advocacy groups based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,406 contacts → | ||||
Exact match “We are the Service Employees International Union, an organization of 2-million members united by the belief in the dignity and worth of workers and the services they provide and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 420 contacts → | ||||
Exact match “The AFL-CIO represents people who work.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 334 contacts → | ||||
Exact match “Working America unites working people who don’t have a union on the job.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 198 contacts → | ||||
Exact match “The Solidarity Center stands with workers everywhere fighting for fair wages, safe workplaces and fundamental freedoms – when workers have the knowledge and support to advocate…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 195 contacts → | ||||
Exact match “The National Domestic Workers Alliance NDWA) organizes domestic workers in the United States for respect, recognition and labor standards.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 150 contacts → | ||||
Exact match “Outten & Golden is a nationally recognized law firm for employees.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 110 contacts → | ||||
Exact match “Verité is a global, nonprofit organization with a mission to ensure that people worldwide work under safe, fair, and legal conditions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 100 contacts → | ||||
Exact match “HKM is a national employment law firm that represents individuals and workers in all aspects of employment law.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 80 contacts → | ||||
Exact match “Willig, Williams & Davidson is one of the largest and most respected union-side labor law firms in the United States.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 77 contacts → | ||||
Exact match “Members of UNITE HERE Local 11 join together to fight for improved living standards and working conditions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 71 contacts → | ||||
Exact match “Legal Aid at Work promotes the rights and economic self-sufficiency of low-wage workers and marginalized communities through free legal services, education, and advocacy at the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 70 contacts → | ||||
Exact match “At Jobs With Justice, we are leading the fight for workers’ rights and an economy that benefits everyone.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 67 contacts → | ||||
Exact match “Since our founding in 1969, the National Employment Law Project has fought to secure the rights of workers and unemployed people across the country.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 51 contacts → | ||||
Exact match “Employee Justice Legal Group, PC is a California based law firm, with headquarters in Los Angeles, CA and offices in Orange County and San Diego as well.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 51 contacts → | ||||
Exact match “Since our founding in 1995, we’ve been pioneering policy campaigns that are then adopted across the nation, from the groundbreaking Children’s Health Initiative, to raising the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 49 contacts → | ||||
Exact match “The American legal system is in a constant state of change.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 42 contacts → | ||||
Exact match “For confidence and safety in the marketplace.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 41 contacts → | ||||
Exact match “Altshuler Berzon LLP is a San Francisco law firm dedicated to providing the highest quality representation in the service of economic justice and the public interest.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 41 contacts → | ||||
Exact match “The Official Web Page of the United Farm Workers of America” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 39 contacts → | ||||
Exact match “At Cohen, Weiss and Simon LLP, we are proud of our reputation as one of the nation's leading firms devoted exclusively to the interests of labor and working people.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 39 contacts → | ||||
Exact match “At Barrett & Farahany, we advocate on behalf of wronged employees in all matters of employment law.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 38 contacts → | ||||
Exact match “Workers Defense Project (WDP) is a membership-based organization that works to empower low-wage workers to achieve fair employment through education, direct services, organizing…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 37 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 35 contacts → | ||||
Exact match “O'Donoghue & O'Donoghue LLP is one of the largest and oldest union-side law firms in the United States, with offices in Washington, D.C, Philadelphia, Pennsylvania, and Annapolis…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 29 contacts → | ||||
Exact match “A Law Firm For The People Who Keep America Working Weinberg, Roger & Rosenfeld is one of the nation’s leading firms representing unions and working people in all aspects of labor…” Recorded in the RevenueBase company graph · Sep 22, 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 “worker advocacy groups”. 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 294 worker advocacy groups based in the United States
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Worker advocacy groups based in the United States at a glance
As of Sep 22, 2026Companies by employee count
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 294 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 the United States whose business descriptions match “worker advocacy groups” 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 1,920 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 22, 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.
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 “worker advocacy groups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many worker advocacy groups are there based in the United States?
RevenueBase identified 294 company matches for worker advocacy groups associated with the 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?
SEIU tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most worker advocacy groups?
New York leads with 24 company records, followed by Washington (23) and Los Angeles (21).
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 1,920 professional contacts with verified work emails tracked across these 294 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 22, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Worker advocacy groups based in Brazil
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 worker advocacy groups based in the 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 294 matching company records for worker advocacy groups based in the United States, with 6,048 tracked contacts and 1,920 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 22, 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 worker advocacy groups based in the 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 | SEIUseiu.org HQ: Washington, DC, United StatesReported employees: 501-1,000 | Washington, DC, United States | 501-1,000 | Exact match | 1,406 contacts → |
“We are the Service Employees International Union, an organization of 2-million members united by the belief in the dignity and worth of workers and the services they provide and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Afl-Cioaflcio.orgHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 420 contacts → |
“The AFL-CIO represents people who work.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Working Americaworkingamerica.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 334 contacts → |
“Working America unites working people who don’t have a union on the job.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Solidarity Centersolidaritycenter.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 198 contacts → |
“The Solidarity Center stands with workers everywhere fighting for fair wages, safe workplaces and fundamental freedoms – when workers have the knowledge and support to advocate…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | National Domestic Workers Alliancedomesticworkers.org HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 195 contacts → |
“The National Domestic Workers Alliance NDWA) organizes domestic workers in the United States for respect, recognition and labor standards.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Outten & Golden LLPouttengolden.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 150 contacts → |
“Outten & Golden is a nationally recognized law firm for employees.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Veritéverite.org HQ: Northampton, MA, United StatesReported employees: 51-200 | Northampton, MA, United States | 51-200 | Exact match | 110 contacts → |
“Verité is a global, nonprofit organization with a mission to ensure that people worldwide work under safe, fair, and legal conditions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  HKM Employment Attorneys LLPhkm.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 100 contacts → |
“HKM is a national employment law firm that represents individuals and workers in all aspects of employment law.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Willig, Williams & Davidsonwwdlaw.comHQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 80 contacts → |
“Willig, Williams & Davidson is one of the largest and most respected union-side labor law firms in the United States.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Unite Here Local 11unitehere11.org HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 77 contacts → |
“Members of UNITE HERE Local 11 join together to fight for improved living standards and working conditions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Legal AID At Worklegalaidatwork.orgHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 71 contacts → |
“Legal Aid at Work promotes the rights and economic self-sufficiency of low-wage workers and marginalized communities through free legal services, education, and advocacy at the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Jobs With Justicejwj.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 70 contacts → |
“At Jobs With Justice, we are leading the fight for workers’ rights and an economy that benefits everyone.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | National Employment LAW Projectnelp.org HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 67 contacts → |
“Since our founding in 1969, the National Employment Law Project has fought to secure the rights of workers and unemployed people across the country.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Employee Justice Legal Groupejlglaw.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 51 contacts → |
“Employee Justice Legal Group, PC is a California based law firm, with headquarters in Los Angeles, CA and offices in Orange County and San Diego as well.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Working Partnerships USAwpusa.org HQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 51 contacts → |
“Since our founding in 1995, we’ve been pioneering policy campaigns that are then adopted across the nation, from the groundbreaking Children’s Health Initiative, to raising the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  The Previant LAW Firm, S.Cpreviant.comHQ: Milwakee, WI, United StatesReported employees: 11-50 | Milwakee, WI, United States | 11-50 | Exact match | 49 contacts → |
“The American legal system is in a constant state of change.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  National Consumers League NCLnclnet.orgHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 42 contacts → |
“For confidence and safety in the marketplace.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Altshuler Berzon LLPaltshulerberzon.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 41 contacts → |
“Altshuler Berzon LLP is a San Francisco law firm dedicated to providing the highest quality representation in the service of economic justice and the public interest.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Keene, CA, United StatesReported employees: 201-500 | Keene, CA, United States | 201-500 | Exact match | 41 contacts → |
“The Official Web Page of the United Farm Workers of America” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cohen, Weiss And Simon LLPcwsny.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 39 contacts → |
“At Cohen, Weiss and Simon LLP, we are proud of our reputation as one of the nation's leading firms devoted exclusively to the interests of labor and working people.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Barrett & Farahanyjusticeatwork.comHQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 39 contacts → |
“At Barrett & Farahany, we advocate on behalf of wronged employees in all matters of employment law.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Workers Defense Projectworkersdefense.org HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 38 contacts → |
“Workers Defense Project (WDP) is a membership-based organization that works to empower low-wage workers to achieve fair employment through education, direct services, organizing…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Lichten & Liss-Riordan, P.Cllrlaw.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 37 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  O'donoghue & O'donoghue LLPodonoghuelaw.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 35 contacts → |
“O'Donoghue & O'Donoghue LLP is one of the largest and oldest union-side law firms in the United States, with offices in Washington, D.C, Philadelphia, Pennsylvania, and Annapolis…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Weinberg, Roger & Rosenfeldunioncounsel.net HQ: Alameda, CA, United StatesReported employees: 51-200 | Alameda, CA, United States | 51-200 | Exact match | 29 contacts → |
“A Law Firm For The People Who Keep America Working Weinberg, Roger & Rosenfeld is one of the nation’s leading firms representing unions and working people in all aspects of labor…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 294 company matches
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Worker advocacy groups: dataset insights
September 22, 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
294 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 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 294 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 22, 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 ↗
Questions about this company list
What does Exact match mean for worker advocacy groups?
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 worker advocacy groups did RevenueBase find based in the United States?
The saved snapshot records 294 matching company records, 6,048 tracked contacts and 1,920 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 22, 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
Worker advocacy groups by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 worker advocacy groups based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/worker-advocacy-groups/united-states.
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
- Worker advocacy groups based in Brazil
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 worker advocacy groups based in the United States
RevenueBase records 294 matching company records for worker advocacy groups based in the United States, with 6,048 tracked contacts and 1,920 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 22, 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 worker advocacy groups based in the 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 | SEIUseiu.org HQ: Washington, DC, United StatesReported employees: 501-1,000 | Washington, DC, United States | 501-1,000 | Exact match | 1,406 contacts → |
“We are the Service Employees International Union, an organization of 2-million members united by the belief in the dignity and worth of workers and the services they provide and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Afl-Cioaflcio.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 420 contacts → |
“The AFL-CIO represents people who work.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Working Americaworkingamerica.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 334 contacts → |
“Working America unites working people who don’t have a union on the job.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Solidarity Centersolidaritycenter.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 198 contacts → |
“The Solidarity Center stands with workers everywhere fighting for fair wages, safe workplaces and fundamental freedoms – when workers have the knowledge and support to advocate…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | National Domestic Workers Alliancedomesticworkers.org HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 195 contacts → |
“The National Domestic Workers Alliance NDWA) organizes domestic workers in the United States for respect, recognition and labor standards.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Outten & Golden LLPouttengolden.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 150 contacts → |
“Outten & Golden is a nationally recognized law firm for employees.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Veritéverite.org HQ: Northampton, MA, United StatesReported employees: 51-200 | Northampton, MA, United States | 51-200 | Exact match | 110 contacts → |
“Verité is a global, nonprofit organization with a mission to ensure that people worldwide work under safe, fair, and legal conditions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HKM Employment Attorneys LLPhkm.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 100 contacts → |
“HKM is a national employment law firm that represents individuals and workers in all aspects of employment law.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Willig, Williams & Davidsonwwdlaw.com HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 80 contacts → |
“Willig, Williams & Davidson is one of the largest and most respected union-side labor law firms in the United States.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Unite Here Local 11unitehere11.org HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 77 contacts → |
“Members of UNITE HERE Local 11 join together to fight for improved living standards and working conditions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Legal AID At Worklegalaidatwork.org HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 71 contacts → |
“Legal Aid at Work promotes the rights and economic self-sufficiency of low-wage workers and marginalized communities through free legal services, education, and advocacy at the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Jobs With Justicejwj.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 70 contacts → |
“At Jobs With Justice, we are leading the fight for workers’ rights and an economy that benefits everyone.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | National Employment LAW Projectnelp.org HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 67 contacts → |
“Since our founding in 1969, the National Employment Law Project has fought to secure the rights of workers and unemployed people across the country.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Employee Justice Legal Groupejlglaw.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 51 contacts → |
“Employee Justice Legal Group, PC is a California based law firm, with headquarters in Los Angeles, CA and offices in Orange County and San Diego as well.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Working Partnerships USAwpusa.org HQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 51 contacts → |
“Since our founding in 1995, we’ve been pioneering policy campaigns that are then adopted across the nation, from the groundbreaking Children’s Health Initiative, to raising the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Previant LAW Firm, S.Cpreviant.com HQ: Milwakee, WI, United StatesReported employees: 11-50 | Milwakee, WI, United States | 11-50 | Exact match | 49 contacts → |
“The American legal system is in a constant state of change.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | National Consumers League NCLnclnet.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 42 contacts → |
“For confidence and safety in the marketplace.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Altshuler Berzon LLPaltshulerberzon.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 41 contacts → |
“Altshuler Berzon LLP is a San Francisco law firm dedicated to providing the highest quality representation in the service of economic justice and the public interest.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Keene, CA, United StatesReported employees: 201-500 | Keene, CA, United States | 201-500 | Exact match | 41 contacts → |
“The Official Web Page of the United Farm Workers of America” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cohen, Weiss And Simon LLPcwsny.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 39 contacts → |
“At Cohen, Weiss and Simon LLP, we are proud of our reputation as one of the nation's leading firms devoted exclusively to the interests of labor and working people.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Barrett & Farahanyjusticeatwork.com HQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 39 contacts → |
“At Barrett & Farahany, we advocate on behalf of wronged employees in all matters of employment law.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Workers Defense Projectworkersdefense.org HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 38 contacts → |
“Workers Defense Project (WDP) is a membership-based organization that works to empower low-wage workers to achieve fair employment through education, direct services, organizing…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Lichten & Liss-Riordan, P.Cllrlaw.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 37 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | O'donoghue & O'donoghue LLPodonoghuelaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 35 contacts → |
“O'Donoghue & O'Donoghue LLP is one of the largest and oldest union-side law firms in the United States, with offices in Washington, D.C, Philadelphia, Pennsylvania, and Annapolis…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Weinberg, Roger & Rosenfeldunioncounsel.net HQ: Alameda, CA, United StatesReported employees: 51-200 | Alameda, CA, United States | 51-200 | Exact match | 29 contacts → |
“A Law Firm For The People Who Keep America Working Weinberg, Roger & Rosenfeld is one of the nation’s leading firms representing unions and working people in all aspects of labor…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Worker advocacy groups: dataset insights
September 22, 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
294 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 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 294 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 22, 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 ↗
Questions about this company list
What does Exact match mean for worker advocacy groups?
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 worker advocacy groups did RevenueBase find based in the United States?
The saved snapshot records 294 matching company records, 6,048 tracked contacts and 1,920 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 22, 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
Worker advocacy groups by geography
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Cite this list
RevenueBase Data Team. Top 25 worker advocacy groups based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/worker-advocacy-groups/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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