Company lists · Data refreshed September 2026
Top 25 Ip firms based in New York, United States
RevenueBase identified 176 ip firms headquartered in New York, United States as of September 2026 and tracks 2,416 professional contacts across them, including 1,139 with verified work emails. New York is the largest hub.
This list covers ip firms 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 21, 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.
The 25 largest ip firms based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 182 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 140 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 135 contacts → | ||||
Strong evidence “As an enterprise grows, its need for intellectual property (IP) protection expands.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 117 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 100 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 94 contacts → | ||||
Indirect evidence “We are a boutique full-service firm recognized worldwide in the areas of intellectual property law and litigation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 90 contacts → | ||||
Strong evidence “For IP Leaders by IP Professionals: Decades of experience in serving Fortune 500 Corporations & Leading Law Firms.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 85 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Indirect evidence “Lucas & Mercanti is an intellectual property law firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Indirect evidence “Ostrolenk Faber is a premier intellectual property boutique law firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 23 contacts → | ||||
Indirect evidence “Epstein Drangel LLP is a leading intellectual property law firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “GS2Law is a boutique law firm focused on intellectual property, dispute resolution and commercial transactional matters.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 21 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 17 contacts → | ||||
Strong evidence “Large publicly traded companies and cutting-edge startups trust Gish PLLC to handle their most intricate IP matters.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “Negosh is a global licensing marketplace connecting brands and manufacturers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Indirect evidence “Handal & Morofsky, LLC is a boutique law firm focusing on intellectual property and internet law.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: ip firms. 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 ip firms.
- Partial evidence
- Its own public description names part of ip firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ip firms. 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 176 ip firms based in New York, United States
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Ip firms based in New York, United States at a glance
As of Sep 21, 2026Companies by employee count
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 176 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 ip firms, 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 “ip firms”. 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 ip firms), 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 ip firms, 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, 1,139 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 21, 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.
Ip firms by metro in the United States
- Ip firms in New York176
- Ip firms in Washington94
- Ip firms in Chicago89
- Ip firms in Los Angeles69
- Ip firms in Houston59
- Ip firms in Dallas56
- Ip firms in Atlanta52
- Ip firms in San Francisco46
- Ip firms in San Diego45
- Ip firms in Austin42
- Ip firms in Seattle37
- Ip firms in Irvine34
- Ip firms in Miami33
- Ip firms in Minneapolis33
- Ip firms in Alexandria30
- Ip firms in Boston30
- Ip firms in Palo Alto26
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 ip firms, 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 ip firms are there based in New York, United States?
RevenueBase identified 176 ip firms 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 has the most ip firms?
New York leads with 176 headquartered companies, followed by Washington (94) and Chicago (89).
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 1,139 verified decision-maker contacts tracked across these 176 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 21, 2026.
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- Ip firms based in Hamburg, Germany
- Ip firms based in Munich, Germany
- Ip firms based in Bangalore, India
- Ip firms based in Bengaluru, India
- Ip firms based in Chennai, India
- Ip firms based in Delhi, India
- Ip firms based in Gurgaon, India
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.