Company lists · Data refreshed September 2026
Top 25 Union representation law firms based in the United States
RevenueBase identified 748 company matches for union representation law firms associated with the United States as of September 2026 and tracks 11,816 professional contacts across them, including 6,915 with verified work emails and 6,311 with mobile numbers. Los Angeles is the largest hub.
This list covers company matches for union representation law firms 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 6, 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 union representation law firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,555 contacts → | ||||
Exact match “Littler is the largest global employment and labor law practice, representing management in all aspects of employment and labor law and serving as a single-source solution…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 2 | 2,285 contacts → | ||||
Exact match “Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 3 | 746 contacts → | ||||
Exact match “FordHarrison LLP - your partner in employment law.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 4 | 429 contacts → | ||||
Exact match “Constangy, Brooks, Smith & Prophete has more than 250 attorneys across 21 states and the District of Columbia, offering services including the defense of single and…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 5 | 194 contacts → | ||||
Exact match “DC 37’s Health and Security benefit package includes the largest prepaid legal services office in the country.” Recorded in the RevenueBase company graph · Sep 6, 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 6, 2026 · View company records in RevenueBase | |||||
| 7 | 119 contacts → | ||||
Exact match “Martenson, Hasbrouck & Simon LLP is headquartered in Atlanta, with offices in Carlsbad, Chicago, Dallas, New York, and Sacramento, making us geographically and strategically…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 8 | 113 contacts → | ||||
Exact match “Founded in 1995, Frilot L.L.C.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 9 | 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 6, 2026 · View company records in RevenueBase | |||||
| 10 | 80 contacts → | ||||
Exact match “TEAMING WITH EMPLOYERS TO BUILD A BETTER WORKPLACE® We are a different kind of law firm.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 11 | 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 6, 2026 · View company records in RevenueBase | |||||
| 12 | 79 contacts → | ||||
Exact match “Laner Muchin Ltd.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 13 | 78 contacts → | ||||
Exact match “Nichols Kaster, with more than thirty lawyers in offices in Minneapolis and San Francisco, represents employees and consumers in individual, class, and collective action lawsuits…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 14 | 73 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 15 | 70 contacts → | ||||
Exact match “At Hawks Quindel, we achieve results for working people.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 16 | 54 contacts → | ||||
Exact match “Blitman & King LLP is a law firm with a national reputation for providing cutting edge practical advice in complicated areas of the law.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 17 | 50 contacts → | ||||
Exact match “Ballard Rosenberg Golper & Savitt, LLP is an A-V rated law firm engaged exclusively in the practice of labor and employment law on behalf of employers and management.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 18 | 49 contacts → | ||||
Exact match “Bredhoff & Kaiser PLLC is one of the nation’s preeminent law firms devoted to empowering workers and the institutions that advocate for them.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 19 | 49 contacts → | ||||
Exact match “The American legal system is in a constant state of change.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 20 | 47 contacts → | ||||
Exact match “Gilbert Employment Law (GEL) has a vibrant employment law practice with offices in Silver Spring, MD and Honolulu, Hawaii representing employees and employers in a variety of…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 21 | 47 contacts → | ||||
Exact match “Whether vigorously protecting your business and reputation from wrongful accusations or tackling other complex labor & employment issues nationwide, Kullman brings powerful…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 22 | 43 contacts → | ||||
Exact match “Ferrone Law Group is California's preeminent law firm specializing exclusively in the representation of public safety associations and their members in labor & contract…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 23 | 42 contacts → | ||||
Exact match “The lawyers of Katz Banks Kumin are nationally recognized leaders in the areas of whistleblower law, discrimination and sexual harassment law, wage and hour law, employment law…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 24 | 42 contacts → | ||||
Exact match “Labor and Employment Law is all we do.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 25 | 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 6, 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 “union representation law 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 748 union representation law firms based in the United States
See the full list, filter by size, metro and specialty, and access 6,915 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Union representation law firms based in the United States at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “union representation law 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 6,915 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 6, 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.
Union representation law firms by metro
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 “union representation law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many union representation law firms are there based in the United States?
RevenueBase identified 748 company matches for union representation law firms 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?
Littler tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most union representation law firms?
Los Angeles leads with 53 company records, followed by New York (53) and Washington (24).
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 6,915 professional contacts with verified work emails tracked across these 748 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 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 748 union representation law firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Union representation law firms by geography
- Union representation law firms based in Brazil
- Union representation law firms based in France
- Union representation law firms based in Spain
- Union representation law firms based in Italy
- Union representation law firms based in Mexico
- Union representation law firms based in Canada
- Union representation law firms based in Germany
- Union representation law firms based in the Netherlands
- Union representation law firms based in Belo Horizonte, Brazil
- Union representation law firms based in Porto Alegre, Brazil
- Union representation law firms based in Rio De Janeiro, Brazil
- Union representation law firms based in Sao Paulo, Brazil
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
- Union representation law firms based in Brazil
- Union representation law firms based in France
- Union representation law firms based in Spain
- Union representation law firms based in Italy
- Union representation law firms based in Mexico
- Union representation law firms based in Canada
Company intelligence · public preview
Top 25 union representation law firms 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 748 matching company records for union representation law firms based in the United States, with 11,816 tracked contacts and 6,915 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 6, 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 union representation law firms 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 | HQ: San Francisco, CA, United StatesReported employees: 1,001-5,000 | San Francisco, CA, United States | 1,001-5,000 | Exact match | 2,555 contacts → |
“Littler is the largest global employment and labor law practice, representing management in all aspects of employment and labor law and serving as a single-source solution…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: New York, United StatesReported employees: 1,001-5,000 | New York, United States | 1,001-5,000 | Exact match | 2,285 contacts → |
“Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 746 contacts → |
“FordHarrison LLP - your partner in employment law.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 429 contacts → |
“Constangy, Brooks, Smith & Prophete has more than 250 attorneys across 21 states and the District of Columbia, offering services including the defense of single and…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dc37dc37.net HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 194 contacts → |
“DC 37’s Health and Security benefit package includes the largest prepaid legal services office in the country.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Brookhaven, GA, United StatesReported employees: 51-200 | Brookhaven, GA, United States | 51-200 | Exact match | 119 contacts → |
“Martenson, Hasbrouck & Simon LLP is headquartered in Atlanta, with offices in Carlsbad, Chicago, Dallas, New York, and Sacramento, making us geographically and strategically…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: New Orleans, LA, United StatesReported employees: 51-200 | New Orleans, LA, United States | 51-200 | Exact match | 113 contacts → |
“Founded in 1995, Frilot L.L.C.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Chatham, NJ, United StatesReported employees: 51-200 | Chatham, NJ, United States | 51-200 | Exact match | 80 contacts → |
“TEAMING WITH EMPLOYERS TO BUILD A BETTER WORKPLACE® We are a different kind of law firm.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 79 contacts → |
“Laner Muchin Ltd.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 78 contacts → |
“Nichols Kaster, with more than thirty lawyers in offices in Minneapolis and San Francisco, represents employees and consumers in individual, class, and collective action lawsuits…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 73 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | HQ: Milwaukee, WI, United StatesReported employees: 11-50 | Milwaukee, WI, United States | 11-50 | Exact match | 70 contacts → |
“At Hawks Quindel, we achieve results for working people.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Syracuse, NY, United StatesReported employees: 11-50 | Syracuse, NY, United States | 11-50 | Exact match | 54 contacts → |
“Blitman & King LLP is a law firm with a national reputation for providing cutting edge practical advice in complicated areas of the law.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Encino, CA, United StatesReported employees: 11-50 | Encino, CA, United States | 11-50 | Exact match | 50 contacts → |
“Ballard Rosenberg Golper & Savitt, LLP is an A-V rated law firm engaged exclusively in the practice of labor and employment law on behalf of employers and management.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 49 contacts → |
“Bredhoff & Kaiser PLLC is one of the nation’s preeminent law firms devoted to empowering workers and the institutions that advocate for them.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Silver Spring, MD, United StatesReported employees: 11-50 | Silver Spring, MD, United States | 11-50 | Exact match | 47 contacts → |
“Gilbert Employment Law (GEL) has a vibrant employment law practice with offices in Silver Spring, MD and Honolulu, Hawaii representing employees and employers in a variety of…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: New Orleans, LA, United StatesReported employees: 51-200 | New Orleans, LA, United States | 51-200 | Exact match | 47 contacts → |
“Whether vigorously protecting your business and reputation from wrongful accusations or tackling other complex labor & employment issues nationwide, Kullman brings powerful…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Westlake Village, CA, United StatesReported employees: 51-200 | Westlake Village, CA, United States | 51-200 | Exact match | 43 contacts → |
“Ferrone Law Group is California's preeminent law firm specializing exclusively in the representation of public safety associations and their members in labor & contract…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 42 contacts → |
“The lawyers of Katz Banks Kumin are nationally recognized leaders in the areas of whistleblower law, discrimination and sexual harassment law, wage and hour law, employment law…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Coral Gables, FL, United StatesReported employees: 51-200 | Coral Gables, FL, United States | 51-200 | Exact match | 42 contacts → |
“Labor and Employment Law is all we do.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 748 company matches
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Union representation law firms: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
745 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 6, 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 ↗
Union representation law firms by metro
Questions about this company list
What does Exact match mean for union representation law 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 union representation law firms did RevenueBase find based in the United States?
The saved snapshot records 748 matching company records, 11,816 tracked contacts and 6,915 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 6, 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
Union representation law firms by geography
- Union representation law firms based in Brazil
- Union representation law firms based in France
- Union representation law firms based in Spain
- Union representation law firms based in Italy
- Union representation law firms based in Mexico
- Union representation law firms based in Canada
- Union representation law firms based in Germany
- Union representation law firms based in the Netherlands
- Union representation law firms based in Belo Horizonte, Brazil
- Union representation law firms based in Porto Alegre, Brazil
- Union representation law firms based in Rio De Janeiro, Brazil
- Union representation law firms based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 union representation law firms based in the United States. Snapshot: September 6, 2026. https://revenuebase.ai/companies/union-representation-law-firms/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
- Union representation law firms based in Brazil
- Union representation law firms based in France
- Union representation law firms based in Spain
- Union representation law firms based in Italy
- Union representation law firms based in Mexico
- Union representation law firms based in Canada
Company intelligence · public preview
Top 25 union representation law firms based in the United States
RevenueBase records 748 matching company records for union representation law firms based in the United States, with 11,816 tracked contacts and 6,915 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 6, 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 union representation law firms 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 | HQ: San Francisco, CA, United StatesReported employees: 1,001-5,000 | San Francisco, CA, United States | 1,001-5,000 | Exact match | 2,555 contacts → |
“Littler is the largest global employment and labor law practice, representing management in all aspects of employment and labor law and serving as a single-source solution…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: New York, United StatesReported employees: 1,001-5,000 | New York, United States | 1,001-5,000 | Exact match | 2,285 contacts → |
“Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 746 contacts → |
“FordHarrison LLP - your partner in employment law.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 429 contacts → |
“Constangy, Brooks, Smith & Prophete has more than 250 attorneys across 21 states and the District of Columbia, offering services including the defense of single and…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dc37dc37.net HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 194 contacts → |
“DC 37’s Health and Security benefit package includes the largest prepaid legal services office in the country.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Brookhaven, GA, United StatesReported employees: 51-200 | Brookhaven, GA, United States | 51-200 | Exact match | 119 contacts → |
“Martenson, Hasbrouck & Simon LLP is headquartered in Atlanta, with offices in Carlsbad, Chicago, Dallas, New York, and Sacramento, making us geographically and strategically…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: New Orleans, LA, United StatesReported employees: 51-200 | New Orleans, LA, United States | 51-200 | Exact match | 113 contacts → |
“Founded in 1995, Frilot L.L.C.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Chatham, NJ, United StatesReported employees: 51-200 | Chatham, NJ, United States | 51-200 | Exact match | 80 contacts → |
“TEAMING WITH EMPLOYERS TO BUILD A BETTER WORKPLACE® We are a different kind of law firm.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 79 contacts → |
“Laner Muchin Ltd.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 78 contacts → |
“Nichols Kaster, with more than thirty lawyers in offices in Minneapolis and San Francisco, represents employees and consumers in individual, class, and collective action lawsuits…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 73 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | HQ: Milwaukee, WI, United StatesReported employees: 11-50 | Milwaukee, WI, United States | 11-50 | Exact match | 70 contacts → |
“At Hawks Quindel, we achieve results for working people.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Syracuse, NY, United StatesReported employees: 11-50 | Syracuse, NY, United States | 11-50 | Exact match | 54 contacts → |
“Blitman & King LLP is a law firm with a national reputation for providing cutting edge practical advice in complicated areas of the law.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Encino, CA, United StatesReported employees: 11-50 | Encino, CA, United States | 11-50 | Exact match | 50 contacts → |
“Ballard Rosenberg Golper & Savitt, LLP is an A-V rated law firm engaged exclusively in the practice of labor and employment law on behalf of employers and management.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 49 contacts → |
“Bredhoff & Kaiser PLLC is one of the nation’s preeminent law firms devoted to empowering workers and the institutions that advocate for them.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Silver Spring, MD, United StatesReported employees: 11-50 | Silver Spring, MD, United States | 11-50 | Exact match | 47 contacts → |
“Gilbert Employment Law (GEL) has a vibrant employment law practice with offices in Silver Spring, MD and Honolulu, Hawaii representing employees and employers in a variety of…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: New Orleans, LA, United StatesReported employees: 51-200 | New Orleans, LA, United States | 51-200 | Exact match | 47 contacts → |
“Whether vigorously protecting your business and reputation from wrongful accusations or tackling other complex labor & employment issues nationwide, Kullman brings powerful…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Westlake Village, CA, United StatesReported employees: 51-200 | Westlake Village, CA, United States | 51-200 | Exact match | 43 contacts → |
“Ferrone Law Group is California's preeminent law firm specializing exclusively in the representation of public safety associations and their members in labor & contract…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 42 contacts → |
“The lawyers of Katz Banks Kumin are nationally recognized leaders in the areas of whistleblower law, discrimination and sexual harassment law, wage and hour law, employment law…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Coral Gables, FL, United StatesReported employees: 51-200 | Coral Gables, FL, United States | 51-200 | Exact match | 42 contacts → |
“Labor and Employment Law is all we do.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Union representation law firms: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
745 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 6, 2026.
Publisher-reported method study
The published RevenueBase SmartSearch benchmark
86% good or better at Exact
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. It reports 86% of Exact matches judged good or better, and 77% for a 240-pair sample of one- or two-word categories. This evaluates the method across study queries rather than auditing this individual list.
Read the study and full methodology ↗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 ↗
Union representation law firms by metro
Questions about this company list
What does Exact match mean for union representation law 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 union representation law firms did RevenueBase find based in the United States?
The saved snapshot records 748 matching company records, 11,816 tracked contacts and 6,915 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 6, 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
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Cite this list
RevenueBase Data Team. Top 25 union representation law firms based in the United States. Snapshot: September 6, 2026. https://revenuebase.ai/companies/union-representation-law-firms/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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