Company lists · Data refreshed September 2026

Top 25 Software patent law firms based in Philadelphia, United States

Name: Software patent 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 14, 2026 55 companies tracked

RevenueBase identified 55 company matches for software patent law firms associated with Philadelphia, United States as of September 2026 and tracks 7,479 professional contacts across them, including 3,860 with verified work emails. Across the United States, New York is the largest hub for this category (357 companies); Philadelphia has 55.

This list covers company matches for software patent 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 14, 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 14, 2026 How this list was built

55Companies

7,479Contacts tracked

3,860Verified emails

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The 25 largest software patent law firms based in Philadelphia, United States

Ranked by team size

Top 25 of 55 company matches for software patent law firms based in Philadelphia, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 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	Dechert LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
2	Ballard Spahr LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
3	Saul Ewing LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	501-1,000	916 contacts →
	Exact match “Inspired People.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4	White And Williams LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
5	Post & Schell, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
6	Montgomery Mccracken Walker & Rhoads LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
7	Rawle & Henderson LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
8	Klehr Harrison Harvey Branzburg LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
9	Zarwin Baum	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	51-200	133 contacts →
	Exact match “Zarwin Baum DeVito Kaplan Schaer, P.C.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10	Reger Rizzo & Darnall LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
11	Volpe Koenig	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
12	Panitch Schwarze Belisario & Nadel LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
13	German Gallagher & Murtagh, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	51 contacts →
	Exact match “GGM is a full service law firm headquartered in Philadelphia.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14	Woodcock Washburn LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	1,001-5,000	48 contacts →
	Exact match “On January 1, 2014, the intellectual property law firm of Woodcock Washburn combined with the more than 800 attorneys of the Am Law 100 firm BakerHostetler.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15	Ricci Tyrrell Johnson & Grey, Pllc	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
16	Condo Roccia Koptiw LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	29 contacts →
	Exact match “Condo Roccia Koptiw (“CRK”) is an intellectual property boutique built on two fundamental principles.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17	Kang Haggerty	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	28 contacts →
	Exact match “Focused solely on business litigation and counseling, the lawyers of Kang Haggerty have reputations for excellence earned through years of experience in trial and appellate court.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18	The Belles Group, P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	25 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19	Caesar Rivise, PC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	19 contacts →
	Exact match “Founded in 1926, the law firm of Caesar Rivise, PC.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20	Salmon, Ricchezza, Singer And Turchi LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	18 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21	Fineman Krekstein & Harris	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	18 contacts →
	Exact match “For more than 30 years, the law firm of Fineman Krekstein & Harris P.C.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22	Leonard Sciolla, LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	17 contacts →
	Exact match “At Leonard Sciolla, LLP, we are proud of our proven ability to handle the most sophisticated business transactions and complex litigation for multi-national and Fortune 500…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23	Tucker LAW Group, LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	16 contacts →
	Exact match “Tucker Law Group is a premier litigation firm focused on providing the highest quality legal counsel to national and international clients.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
24	Fisherzucker LLC Franchise Attorney	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	11-50	14 contacts →
	Exact match “FisherZucker LLC is a full-service law firm with a national practice dedicated almost exclusively to franchise, distribution and licensing matters.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
25	Nochumson P.C	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 14, 2026	1-10	9 contacts →
	Exact match “At Nochumson P.C, we are not just legal counsel, we are real people serving our communities.” Recorded in the RevenueBase company graph · Sep 14, 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 “software patent 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 55 software patent law firms based in Philadelphia, United States

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Software patent law firms based in Philadelphia, United States at a glance

As of Sep 14, 2026

51.6%Verified-email coverage

136.0Average contacts per company

11-50Median size (employees)

Sep 14, 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 55 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 “software patent 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 3,860 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 14, 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.

Software patent 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 “software patent law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many software patent law firms are there based in Philadelphia, United States?

RevenueBase identified 55 company matches for software patent 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?

Dechert 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 software patent law firms?

New York leads the United States with 357 company records, followed by Chicago (187) and Los Angeles (176). Philadelphia has 55.

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 3,860 professional contacts with verified work emails tracked across these 55 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 14, 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.