Company lists · Data refreshed September 2026

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

Name: Intellectual property law firms pharmaceutical companies based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 222 companies tracked

RevenueBase identified 222 intellectual property law firms pharmaceutical companies headquartered in New York, United States as of September 2026 and tracks 2,822 professional contacts across them, including 1,366 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers intellectual property law firms pharmaceutical companies headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

222Companies

2,822Contacts tracked

1,366Verified emails

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The 25 largest intellectual property law firms pharmaceutical companies based in New York, United States

Ranked by team size

Top 25 of 222 intellectual property law firms pharmaceutical companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to intellectual property law firms pharmaceutical 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Effectual Services	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	242 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
2	Axinn, Veltrop & Harkrider LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	196 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
3	Fross Zelnick Lehrman & Zissu	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	182 contacts →
	Partial evidence “Fross Zelnick is consistently recognized by clients and peers as one of the top IP law firms in the world.” Source: RevenueBase Database · checked Sep 28, 2026
4	Desmarais LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	140 contacts →
	Strong evidence “Desmarais LLP is a leading intellectual property litigation firm with offices in New York, San Francisco, and Washington, D.C.” Source: RevenueBase Database · checked Sep 28, 2026
5	Ladas & Parry LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	135 contacts →
	Strong evidence “As an enterprise grows, its need for intellectual property (IP) protection expands.” Source: RevenueBase Database · checked Sep 28, 2026
6	Kenyon & Kenyon LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	n/a	117 contacts →
	Strong evidence “Kenyon & Kenyon LLP is a leading intellectual property law firm whose sophisticated and business-oriented approach helps clients succeed with their intellectual property…” Source: RevenueBase Database · checked Sep 28, 2026
7	HG LAW LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	100 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 28, 2026
8	Cowan, Liebowitz & Latman, P.C	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	94 contacts →
	Strong evidence “We are a boutique full-service firm recognized worldwide in the areas of intellectual property law and litigation.” Source: RevenueBase Database · checked Sep 28, 2026
9	Amster Rothstein & Ebenstein LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	85 contacts →
	Strong evidence “Since 1953, Amster, Rothstein & Ebenstein LLP has focused exclusively on representing clients in all facets of intellectual property law both domestically and internationally.” Source: RevenueBase Database · checked Sep 28, 2026
10	Haug Partners LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “For over 25 years, Haug Partners has provided synthesized multidisciplinary legal services for life science and technology businesses.” Source: RevenueBase Database · checked Sep 28, 2026
11	Bursor & Fisher, P.A	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	69 contacts →
	Indirect evidence “BURSOR & FISHER lawyers have represented both plaintiffs and defendants in state and federal courts throughout the country, primarily in the fields of telecommunications…” Source: RevenueBase Database · checked Sep 28, 2026
12	Wilk Auslander LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	69 contacts →
	Partial evidence “Wilk Auslander is a full-service law firm delivering the expertise and resources of a large firm combined with the attention and access of a boutique firm.” Source: RevenueBase Database · checked Sep 28, 2026
13	Bochner Pllc	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “At Bochner, we help our clients across the globe navigate their legal, business, and regulatory challenges – from startup to exit.” Source: RevenueBase Database · checked Sep 28, 2026
14	Copperpod IP	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “Copperpod IP provides technical analysis services for patent litigation and licensing.” Source: RevenueBase Database · checked Sep 28, 2026
15	Cowan, Debaets, Abrahams & Sheppard LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	46 contacts →
	Partial evidence “Cowan, DeBaets, Abrahams & Sheppard LLP (CDAS) is a New York and Beverly Hills media law firm that has served clients for over 30 years in the film, television, visual arts…” Source: RevenueBase Database · checked Sep 28, 2026
16	Jayaram	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence “Jayaram advises individuals and companies around the world, supporting cutting-edge creators, innovators, and change-makers.” Source: RevenueBase Database · checked Sep 28, 2026
17	Gottlieb, Rackman & Reisman, P.C	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
18	Lucas & Mercanti LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Strong evidence “Lucas & Mercanti is an intellectual property law firm.” Source: RevenueBase Database · checked Sep 28, 2026
19	Klaris LAW Pllc	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 28, 2026
20	Ostrolenk Faber LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	26 contacts →
	Strong evidence “Ostrolenk Faber is a premier intellectual property boutique law firm.” Source: RevenueBase Database · checked Sep 28, 2026
21	Epstein Drangel LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	23 contacts →
	Strong evidence “Epstein Drangel LLP is a leading intellectual property law firm.” Source: RevenueBase Database · checked Sep 28, 2026
22	Gs2law	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Strong evidence “GS2Law is a boutique law firm focused on intellectual property, dispute resolution and commercial transactional matters.” Source: RevenueBase Database · checked Sep 28, 2026
23	Giannuzzi Lewendon, LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “Servicing a unique and important part of consumer-driven business, the firm’s tailored experience and resources enable their clients to meet the unique range of legal challenges…” Source: RevenueBase Database · checked Sep 28, 2026
24	Cohen Tauber Spievack & Wagner P.C	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial evidence “Cohen Tauber Spievack & Wagner is a 20-attorney full-service law firm representing primarily business clients in both transactions and in litigation.” Source: RevenueBase Database · checked Sep 28, 2026
25	Gemini LAW LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1-10	21 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: intellectual property law firms pharmaceutical companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names intellectual property law firms pharmaceutical companies.
Partial evidence: Its own public description names part of intellectual property law firms pharmaceutical companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name intellectual property law firms pharmaceutical companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 222 intellectual property law firms pharmaceutical companies based in New York, United States

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

As of Sep 28, 2026

48.4%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

163

11-50

51-200

201-500

501-1,000

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 222 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 firms pharmaceutical 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 firms pharmaceutical 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 firms pharmaceutical 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 firms pharmaceutical 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, 1,366 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 28, 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.

Intellectual property law firms pharmaceutical companies by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names intellectual property law firms pharmaceutical companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many intellectual property law firms pharmaceutical companies are there based in New York, United States?

RevenueBase identified 222 intellectual property law firms pharmaceutical companies headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Effectual Services, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most intellectual property law firms pharmaceutical companies?

New York leads the United States with 222 headquartered companies, followed by Chicago (114) and Washington (107).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,366 verified decision-maker contacts tracked across these 222 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 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.