Company lists · Data refreshed September 2026

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

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 66 companies tracked

RevenueBase identified 66 company matches for union labor law firms associated with Philadelphia, United States as of September 2026 and tracks 4,203 professional contacts across them, including 1,495 with verified work emails. Across the United States, New York is the largest hub for this category (320 companies); Philadelphia has 66.

This list covers company matches for union labor law firms associated with Philadelphia, 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

66Companies

4,203Contacts tracked

1,495Verified emails

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

Ranked by team size

Top 25 of 66 company matches for union labor law firms based in Philadelphia, 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	Margolis Edelstein	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	201-500	277 contacts →
	Exact match “Margolis Edelstein was founded in Philadelphia over 65 years ago.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Obermayer Rebmann Maxwell & Hippel LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	242 contacts →
	Exact match “With over 100 attorneys in offices throughout Pennsylvania, New Jersey, New York, Connecticut and Delaware, we provide businesses, organizations, and individuals with legal…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Kline & Specter, PC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	201-500	215 contacts →
	Exact match “A Philadelphia-based law firm handling wrongful injury lawsuits, including medical malpractice, product liability, premises liability, civil rights and auto accident litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Rawle & Henderson LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	204 contacts →
	Exact match “Rawle & Henderson, LLP, is a Mid-Atlantic regional law firm whose attorneys engage in civil trial litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Pond Lehocky Giordano INC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	201-500	169 contacts →
	Exact match “At Pond Lehocky, we understand that behind every case is an individual relying on us for support.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Berger Montague	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	162 contacts →
	Exact match “Berger Montague is one of the nation’s preeminent law firms focusing on complex civil litigation, class actions, and mass torts.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Cohen Seglias	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	153 contacts →
	Exact match “At Cohen Seglias, strong foundations are built on integrity, decency, and hard work-qualities we bring to every deal we close, every dispute we resolve, every case we try, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Saltz Mongeluzzi Bendesky	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	139 contacts →
	Exact match “Saltz Mongeluzzi Bendesky has earned a national reputation as one of the country's most specialized and experienced law firms in the representation of victims of construction…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Zarwin Baum	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	133 contacts →
	Exact match “Zarwin Baum DeVito Kaplan Schaer, P.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Willig, Williams & Davidson	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	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 29, 2026 · View company records in RevenueBase
11	Lavin, Cedrone, Graver, Boyd & Disipio	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	65 contacts →
	Exact match “For over 25 years, Lavin, Cedrone, Graver, Boyd & DiSipio has vigorously defended litigation throughout the United States.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Wilbraham, Lawler & Buba	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	50 contacts →
	Exact match “The attorneys at Wilbraham, Lawler & Buba, P.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Mceldrew Purtell	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	50 contacts →
	Exact match “McEldrew Purtell is a boutique law firm based in Philadelphia specializing in catastrophic injury / wrongful death and civil rights cases nationwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Feldman Shepherd Wohlgelernter Tanner Weinstock Dodig LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	49 contacts →
	Exact match “Recognized as one of the preeminent civil litigation law firms in Pennsylvania and New Jersey, the attorneys of Feldman Shepherd have established a track record of winning…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Miller Shah LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	41 contacts →
	Exact match “Miller Shah LLP is a results-driven law firm that is focused on delivering the highest level of service possible to our worldwide clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	The Rothenberg LAW Firm LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	40 contacts →
	Exact match “The Rothenberg Law Firm LLP, founded by Allen L.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Ricci Tyrrell Johnson & Grey, Pllc	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	51-200	30 contacts →
	Exact match “In 2014, all of the lawyers at Hollstein Keating Cattell Johnson & Goldstein, P.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Spear Wilderman	Exact match	Philadelphia, United StatesHQ recorded Sep 29, 2026	11-50	28 contacts →
	Exact match “Law practice representing labor since 1937.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Stern & Cohen, PC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	25 contacts →
	Exact match “At Stern & Cohen, we are committed to representing workers who have been injured on the job.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Console Mattiacci Law, LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	21 contacts →
	Exact match “Console Mattiacci Law, LLC is an employment rights law firm with offices in Philadelphia, Pennsylvania, Moorestown, New Jersey, New York, New York and Wayne, PA.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Williams Cedar, LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	13 contacts →
	Exact match “Williams Cedar is a firm of eight caring and compassionate trial lawyers who along with their staff represent only victims.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Sheller, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	10 contacts →
	Exact match “Specializing in mass tort, whistleblower, product liability, defective drugs, motor vehicle, class action, and medical malpractice litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Kohn Swift & Graf, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	8 contacts →
	Exact match “Since its founding, the firm Kohn, Swift & Graf, P.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Levin Sedran & Berman	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	11-50	8 contacts →
	Exact match “Levin Sedran & Berman represents plaintiffs in complex cases on both a national and local level.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Sacks Law, LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	1-10	8 contacts →
	Exact match “No one understands complex litigation better than Sacks Weston, LLC.” 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 66 union labor law firms based in Philadelphia, United States

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

As of Sep 29, 2026

35.6%Verified-email coverage

63.7Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 66 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 Philadelphia, 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 1,495 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 Philadelphia, United States?

RevenueBase identified 66 company matches for union labor law firms associated with Philadelphia, 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?

Margolis Edelstein 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). Philadelphia has 66.

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 1,495 professional contacts with verified work emails tracked across these 66 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.