Company lists · Data refreshed September 2026

Top 25 Union labor law firms based in Washington, United States

Name: Union labor law firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 77 companies tracked

RevenueBase identified 77 company matches for union labor law firms associated with Washington, United States as of September 2026 and tracks 1,428 professional contacts across them, including 654 with verified work emails. Across the United States, New York is the largest hub for this category (320 companies); Washington has 77.

This list covers company matches for union labor law firms associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

77Companies

1,428Contacts tracked

654Verified emails

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The 25 largest union labor law firms based in Washington, United States

Ranked by team size

Top 25 of 77 company matches for union labor law firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mckenna Long & Aldridge LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1,001-5,000	313 contacts →
	Exact match “Dentons is proud to announce that the merger between Dentons US and McKenna Long & Aldridge is complete.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Kellogg, Hansen, Todd, Figel & Frederick Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	211 contacts →
	Exact match “Kellogg Hansen works in complex trial and appellate litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Jackson & Campbell, P.C	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	129 contacts →
	Exact match “For more than 130 years, Jackson & Campbell has been the law firm to which local, regional, and national businesses, associations, and Washingtonians turn for skilled and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	The Employment LAW Group, P.C	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	55 contacts →
	Exact match “The Employment Law Group® law firm is a litigation boutique concentrating on the representation of employees and whistleblowers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Bredhoff & Kaiser Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	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 29, 2026 · View company records in RevenueBase
6	Conn Maciel Carey LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	46 contacts →
	Exact match “Conn Maciel Carey LLP is a boutique law firm focused on Labor & Employment, Workplace Safety - OSHA/MSHA, and Litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Katz Banks Kumin LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	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 29, 2026 · View company records in RevenueBase
8	O'donoghue & O'donoghue LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	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 29, 2026 · View company records in RevenueBase
9	Federal Practice Group, LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	33 contacts →
	Exact match “Federal Practice Group is a nationally recognized law firm specializing in federal employment, military law, government contracts, security clearance, litigation, and more.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Trister, Ross, Schadler & Gold, Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	26 contacts →
	Exact match “Trister, Ross, Schadler & Gold, PLLC combines personalized client service with decades of broad experience and specialized legal expertise.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Stein Mitchell Beato & Missner LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	26 contacts →
	Exact match “Stein Mitchell Beato & Missner LLP is a law firm located in Washington, D.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Kohn, Kohn & Colapinto, LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match “Kohn, Kohn & Colapinto, based in Washington, D.C, is the nation’s leading law firm for whistleblower protection.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Solomon LAW Firm, Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match “Solomon Law Firm, PLLC, endeavors to exceed our clients’ expectations in all facets of legal representation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Migliaccio & Rathod LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	20 contacts →
	Exact match “The attorneys at Migliaccio & Rathod LLP have been collectively practicing for over 20 years and have successfully prosecuted a number of noteworthy wage and hour, civil rights…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Koonz Mckenney Johnson & Depaolis LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	20 contacts →
	Exact match “Since 1979, the personal injury attorneys at Koonz McKenney Johnson & DePaolis LLP have fought aggressively to uphold justice on behalf of our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Murphy Anderson Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	15 contacts →
	Exact match “Murphy Anderson is a Washington-based law firm representing workers and unions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Fortney & Scott, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “FortneyScott is a Washington, DC-based law firm counseling and advising clients on the full spectrum of workplace-related matters.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Handley Farah & Anderson Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	11 contacts →
	Exact match “We are lawyers who seek to improve the world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Correia & Puth, Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	11 contacts →
	Exact match “Correia & Puth, PLLC is dedicated to representing employees confronting workplace discrimination, retaliation, and unfair treatment.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Bernabei & Kabat, Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	10 contacts →
	Exact match “Workers Have Rights, We Know How to Protect Them.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Duddy & Czarnecki Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	10 contacts →
	Exact match “We see a future where individuals who need legal help are supported not just by skilled litigators, but also technologists who leverage the latest tools to deliver effective…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Toikka Kraft LAW Group LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	9 contacts →
	Exact match “Based in Washington, DC, with strategic offices throughout the US, Wilt Toikka Kraft LLP specializes in creative solutions to novel and complex legal issues.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	James & Hoffman, P.C	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Buffone LAW Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	7 contacts →
	Exact match “A personalized approach from experienced and aggressive litigators.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Sherman Dunn, P.C	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	7 contacts →
	Exact match “Founded in 1947, we are one of the oldest and most respected union-side law firms in the country.” Recorded in the RevenueBase company graph · Sep 29, 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 labor 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 77 union labor law firms based in Washington, United States

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Union labor law firms based in Washington, United States at a glance

As of Sep 29, 2026

45.8%Verified-email coverage

18.5Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 77 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Washington, United States whose business descriptions match “union labor 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 654 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 29, 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 labor law firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “union labor law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many union labor law firms are there based in Washington, United States?

RevenueBase identified 77 company matches for union labor law firms associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Mckenna Long & Aldridge LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most union labor law firms?

New York leads the United States with 320 company records, followed by Los Angeles (264) and Chicago (174). Washington has 77.

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 654 professional contacts with verified work emails tracked across these 77 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 29, 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.