Company lists · Data refreshed September 2026

Top 25 Intellectual property law companies based in New York, United States

As of September 2026, this directory lists 172 intellectual property law companies across New York, with 1,982 contacts and 825 email addresses. New York is the single most-represented city among the companies on the list.

Intellectual property law companies advise and represent clients on patents, trademarks, copyrights, trade secrets, licensing, and related disputes. This list covers companies that provide legal services focused on protecting, managing, licensing, or enforcing intellectual property rights. Ranked by team size, largest first. Data current as of September 7, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 7, 2026 86% judged on-target in blind review
172Companies
1,982Contacts tracked
825Verified emails
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The 25 largest intellectual property law companies based in New York, United States

Ranked by team size
Top 25 of 172 intellectual property law companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to intellectual property law companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 2026201-500242 contacts →

“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.”

Source: company website · checked Sep 7, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-200182 contacts →

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

Source: company website · checked Sep 7, 2026
3Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-200140 contacts →

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

Source: company website · checked Sep 7, 2026
4Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-200135 contacts →

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

Source: company website · checked Sep 7, 2026
5Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 2026n/a117 contacts →

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

Source: company website · checked Sep 7, 2026
6Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-200100 contacts →

“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.”

Source: company website · checked Sep 7, 2026
7Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-20094 contacts →

“We are a boutique full-service firm recognized worldwide in the areas of intellectual property law and litigation.”

Source: company website · checked Sep 7, 2026
8Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-20085 contacts →

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

Source: company website · checked Sep 7, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5034 contacts →

“Jayaram advises individuals and companies around the world, supporting cutting-edge creators, innovators, and change-makers.”

Source: company website · checked Sep 7, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5034 contacts →
Source: company website · checked Sep 7, 2026
11Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5028 contacts →

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

Source: company website · checked Sep 7, 2026
12Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5027 contacts →

“Backed by more than 25 years of experience, Klaris is a boutique media, entertainment, technology, and intellectual property law firm that guides its clients through a changing IP…”

Source: company website · checked Sep 7, 2026
13Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202651-20026 contacts →

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

Source: company website · checked Sep 7, 2026
14Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5023 contacts →

“Epstein Drangel LLP is a leading intellectual property law firm.”

Source: company website · checked Sep 7, 2026
15Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5022 contacts →

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

Source: company website · checked Sep 7, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 20261-1021 contacts →

“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.”

Source: company website · checked Sep 7, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5021 contacts →
Source: company website · checked Sep 7, 2026
18Partial evidenceNew York, United StatesHQ checked Sep 7, 20261-1019 contacts →

“Alter, Kendrick & Baron, LLP’s practice is focused on domestic and international copyright law as it pertains to the music industry as well as complex transactions involving…”

Source: company website · checked Sep 7, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5017 contacts →

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

Source: company website · checked Sep 7, 2026
20Strong evidenceNew York, United StatesHQ checked Sep 7, 202611-5016 contacts →

“Sukin Law Group is an entertainment and intellectual property law firm known for groundbreaking work in music publishing, catalog and company sales, musical theater, and…”

Source: company website · checked Sep 7, 2026
21Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5014 contacts →

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

Source: company website · checked Sep 7, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 7, 20261-1014 contacts →

“Bhatta Law & Associates PLLC is a dynamic New York law firm.”

Source: company website · checked Sep 7, 2026
23Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 202611-5012 contacts →

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

Source: company website · checked Sep 7, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 7, 20261-109 contacts →

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

Source: company website · checked Sep 7, 2026
25Strong evidenceNew York, NY, United StatesHQ checked Sep 7, 20261-109 contacts →

“Our law firm is comprised of highly accomplished and experienced lawyers who have particular expertise in complex business and intellectual property matters.”

Source: company website · checked Sep 7, 2026

Showing 25 of 172 intellectual property law companies based in New York, United States

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Intellectual property law companies based in New York, United States at a glance

As of Sep 7, 2026
41.6%Verified-email coverage
11.5Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
132
11-50
27
51-200
11
201-500
1
501-1,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for New York, over 172 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among intellectual property law companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in New York, United States whose own description of what they do matches “intellectual property law companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names intellectual property law companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among intellectual property law companies, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 825 across the full list. 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 7, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many intellectual property law companies are in the directory?

The directory includes 172 intellectual property law companies as of September 2026.

Where are most intellectual property law companies located?

New York is the single most-represented city among the companies on the list, which spans New York.

How can I find contacts at intellectual property law companies?

The directory includes 1,982 contacts and 825 email addresses associated with the listed intellectual property law companies.

Ready to reach these companies? Verified emails and direct dials for all 172 intellectual property law companies based in New York, United States. Start with a free account, no credit card.

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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 Smart Search, 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.