Company lists · Data refreshed September 2026

Top 25 Patent litigation firms based in New York, United States

RevenueBase identified 88 company matches for patent litigation firms associated with New York, United States as of September 2026 and tracks 1,894 professional contacts across them, including 903 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for patent litigation firms associated with New York, 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 20, 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 20, 2026 How this list was built
88Companies
1,894Contacts tracked
903Verified emails
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The 25 largest patent litigation firms based in New York, United States

Ranked by team size
Top 25 of 88 company matches for patent litigation firms based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026201-500242 contacts →

Exact match

“Effectual Services is a well established and fast growing patent and legal support services company having experience and expertise in providing patent and legal services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200196 contacts →

Exact match

“A firm to turn to when all seems hopeless"-Chambers USA Axinn combines the skills, experience and dedication of the world's largest firms with the focus, responsiveness…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200182 contacts →

Exact match

“Fross Zelnick is consistently recognized by clients and peers as one of the top IP law firms in the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200140 contacts →

Exact match

“Desmarais LLP is a leading intellectual property litigation firm with offices in New York, San Francisco, and Washington, D.C.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200135 contacts →

Exact match

“As an enterprise grows, its need for intellectual property (IP) protection expands.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026n/a117 contacts →

Exact match

“Kenyon & Kenyon LLP is a leading intellectual property law firm whose sophisticated and business-oriented approach helps clients succeed with their intellectual property…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200100 contacts →

Exact match

“HG Law LLP (formerly Haley Guiliano LLP) is an international intellectual property law firm specializing in patent law from offices in London, New York and Silicon Valley.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20085 contacts →

Exact match

“Since 1953, Amster, Rothstein & Ebenstein LLP has focused exclusively on representing clients in all facets of intellectual property law both domestically and internationally.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20081 contacts →

Exact match

“For over 25 years, Haug Partners has provided synthesized multidisciplinary legal services for life science and technology businesses.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchNew York, United StatesHQ recorded Sep 20, 202611-5047 contacts →

Exact match

“Copperpod IP provides technical analysis services for patent litigation and licensing.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5034 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5028 contacts →

Exact match

“Lucas & Mercanti is an intellectual property law firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20026 contacts →

Exact match

“Ostrolenk Faber is a premier intellectual property boutique law firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“GS2Law is a boutique law firm focused on intellectual property, dispute resolution and commercial transactional matters.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 20, 20261-1021 contacts →

Exact match

“Gemini’s life sciences lawyers are among the most experienced and successful at helping manufacturers of biopharma products navigate IP barriers to access the U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“Hecht Partners LLP is a nationally renowned (ranked by Chambers and Partners) law firm focusing on commercial disputes, particularly on high-stakes litigation and arbitration.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5017 contacts →

Exact match

“Large publicly traded companies and cutting-edge startups trust Gish PLLC to handle their most intricate IP matters.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“We represent prominent corporations and individuals from the United States and abroad in significant commercial disputes in American courts and in international and U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“Handal & Morofsky, LLC is a boutique law firm focusing on intellectual property and internet law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Fay Kaplun & Marcin, LLP specializes in Intellectual Property (IP) Law, assisting clients with identifying, analyzing and protecting IP, including patents, trademarks, copyrights…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“Leichtman Law is a boutique trial firm formed by a group of like-minded experienced litgators who advocate for our clients in business and intellectual property cases, or pursue…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 20, 20261-109 contacts →

Exact match

“Levy Goldenberg LLP is a leading litigation practice representing businesses of all sizes in the New York Metropolitan Area.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-509 contacts →

Exact match

“LGC is a New York City-based boutique law firm specializing in intellectual property litigation, prosecution, and related business and technology matters.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 20, 20261-108 contacts →

Exact match

“Radulescu LLP is a patent litigation firm that specializes in cases where a deep understanding of the interplay between technology and legal issues is critical to a company’s…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 88 patent litigation firms based in New York, United States

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Patent litigation firms based in New York, United States at a glance

As of Sep 20, 2026
47.7%Verified-email coverage
21.5Average contacts per company
1-10Median size (employees)
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
21
51-200
10
201-500
2

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 88 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 New York, United States whose business descriptions match “patent litigation 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 903 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 20, 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.

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

How many patent litigation firms are there based in New York, United States?

RevenueBase identified 88 company matches for patent litigation firms associated with New York, 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?

Effectual Services 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 patent litigation firms?

New York leads the United States with 88 company records, followed by Washington (65) and Chicago (61).

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 903 professional contacts with verified work emails tracked across these 88 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 20, 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.