Company lists · Data refreshed September 2026

Top 25 Big international law firms based in Philadelphia, United States

Name: Big international 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 21, 2026 80 companies tracked

RevenueBase identified 80 company matches for big international law firms associated with Philadelphia, United States as of September 2026 and tracks 21,844 professional contacts across them, including 11,812 with verified work emails. Across the United States, New York is the largest hub for this category (603 companies); Philadelphia has 80.

This list covers company matches for big international 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 21, 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 21, 2026 How this list was built

80Companies

21,844Contacts tracked

11,812Verified emails

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The 25 largest big international law firms based in Philadelphia, United States

Ranked by team size

Top 25 of 80 company matches for big international law firms based in Philadelphia, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Morgan, Lewis & Bockius LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,832 contacts →
	Exact match “From our offices in strategic hubs of commerce, law, and government across North America, Asia, Europe, and the Middle East, we work with clients ranging from established, global…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	FOX Rothschild	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,139 contacts →
	Exact match “With bold growth, Fox Rothschild brings together attorneys coast to coast.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Dechert LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,041 contacts →
	Exact match “Dechert is the law firm that helps business leaders lead.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Faegre Drinker	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,848 contacts →
	Exact match “Faegre Drinker is a firm designed for clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Duane Morris LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,843 contacts →
	Exact match “Duane Morris LLP, a law firm with more than 900 attorneys in offices across the United States and internationally, is asked by a broad array of clients to provide innovative…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Ballard Spahr LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,682 contacts →
	Exact match “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Saul Ewing LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	501-1,000	916 contacts →
	Exact match “Inspired People.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Stradley Ronon	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	201-500	447 contacts →
	Exact match “Philadelphia Grown.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	White And Williams LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	201-500	416 contacts →
	Exact match “Founded in 1899, White and Williams LLP is a global-reaching, multi-practice law firm with over 200 lawyers in ten offices.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Post & Schell, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	201-500	336 contacts →
	Exact match “For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Margolis Edelstein	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	201-500	277 contacts →
	Exact match “Margolis Edelstein was founded in Philadelphia over 65 years ago.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Weber Gallagher	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	201-500	264 contacts →
	Exact match “With more than 160 legal professionals, Weber Gallagher provides counsel to local, national and international businesses, insurance companies and financial institutions in…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Obermayer Rebmann Maxwell & Hippel LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14	Dilworth Paxson LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	240 contacts →
	Exact match “Founded in 1933, Dilworth Paxson conducts a broad and diverse regional law practice representing a wide variety of clients ranging from Fortune 500 companies to closely-held…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Montgomery Mccracken Walker & Rhoads LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	201-500	212 contacts →
	Exact match “Montgomery McCracken’s collaborative approach – in all we do – delivers access to the right people at the right time, efficiencies in our work, and outcomes our clients need and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Rawle & Henderson LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17	Klehr Harrison Harvey Branzburg LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	193 contacts →
	Exact match “Klehr Harrison Harvey Branzburg LLP is a dynamic law firm known in the business, financial and legal communities for its aggressive and creative problem-solving skills.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Zarwin Baum	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	133 contacts →
	Exact match “Zarwin Baum DeVito Kaplan Schaer, P.C.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Reger Rizzo & Darnall LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	124 contacts →
	Exact match “Reger Rizzo & Darnall LLP is a firm with a proven track record of success.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Volpe Koenig	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	103 contacts →
	Exact match “Volpe Koenig is a full-service intellectual property law firm providing worldwide client counseling on patents, trademarks, copyrights, trade secrets, technology transfers, due…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Hangley Aronchick Segal Pudlin & Schiller	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	102 contacts →
	Exact match “When our firm was founded in 1994, our idea was to build a firm of lawyers with superior academic credentials and professional capabilities who wanted to develop their practices…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Spector Gadon Rosen Vinci P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	102 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Kleinbard LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	11-50	65 contacts →
	Exact match “For over 75 years, Kleinbard attorneys have served as trusted advisors and advocates for clients to help them achieve their goals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Panitch Schwarze Belisario & Nadel LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	51-200	57 contacts →
	Exact match “Panitch Schwarze Belisario & Nadel, LLP is an intellectual property boutique law firm that services clients internationally, with offices in Philadelphia, Wilmington, DE, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	German Gallagher & Murtagh, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	11-50	51 contacts →
	Exact match “GGM is a full service law firm headquartered in Philadelphia.” Recorded in the RevenueBase company graph · Sep 21, 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 “big international 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 80 big international law firms based in Philadelphia, United States

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Big international law firms based in Philadelphia, United States at a glance

As of Sep 21, 2026

54.1%Verified-email coverage

273.1Average contacts per company

11-50Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 80 companies.

How this list was built

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

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Philadelphia, United States whose business descriptions match “big international 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 11,812 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 21, 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.

Big international 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 “big international law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many big international law firms are there based in Philadelphia, United States?

RevenueBase identified 80 company matches for big international 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?

Morgan, Lewis & Bockius 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 big international law firms?

New York leads the United States with 603 company records, followed by Chicago (239) and Los Angeles (219). Philadelphia has 80.

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 11,812 professional contacts with verified work emails tracked across these 80 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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.