Company lists · Data refreshed September 2026

Top 25 Intellectual property support services worldwide

RevenueBase identified 11,216 intellectual property support services worldwide as of September 2026 and tracks 128,375 professional contacts across them, including 43,311 with verified work emails. The United States is the largest market and New Delhi the largest hub.

This list covers intellectual property support services worldwide, 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 20, 2026. Country and city lists for intellectual property support services follow the table.

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 20, 2026 86% judged on-target in blind review
11,216Companies
128,375Contacts tracked
43,311Verified emails
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The 25 largest intellectual property support services worldwide

Ranked by team size
Top 25 of 11,216 intellectual property support services worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to intellectual property support services: 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 evidenceLondon, United KingdomHQ checked Sep 20, 20261,001-5,0001,553 contacts →

Indirect evidence

“Corsearch’s leading Trademark and Brand & Content Protection Solutions are revolutionizing how companies create, monitor, and protect their brands.”

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidenceTokyo, JapanHQ checked Sep 20, 20261,001-5,0001,189 contacts →

Strong evidence

“ADKADK3ADKADKADK ADK ADK ADK ADK IP(Intellectual Property)”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceSt Helier, JerseyHQ checked Sep 20, 20261,001-5,0001,171 contacts →

Indirect evidence

“CPA Global makes it possible for IP to move at the speed of ideas.”

Source: RevenueBase Database · checked Sep 20, 2026
4Strong evidenceBoston, MA, United StatesHQ checked Sep 20, 20261,001-5,0001,167 contacts →

Strong evidence

“As the leading intellectual property law firm, we help innovators change the world through our unmatched litigation, prosecution, and post-grant experience across venues and…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 2026501-1,000936 contacts →

Indirect evidence

“When your most valuable assets are ideas, innovation, and brand-you need the best.”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceRio De Janeiro, BrazilHQ checked Sep 20, 2026501-1,000775 contacts →

Strong evidence

“Dannemann Siemsen is a Brazilian firm dedicated to Intellectual Property since 1900.”

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidenceLos Altos, CA, United StatesHQ checked Sep 20, 2026501-1,000754 contacts →

Strong evidence

“Since 2004, MaxVal has helped the world's most innovative organizations capitalize on their intellectual property by being different from the legacy IP solution providers.”

Source: RevenueBase Database · checked Sep 20, 2026
8Strong evidenceParis, United StatesHQ checked Sep 20, 20261,001-5,000753 contacts →

Strong evidence

“Questel is a true end-to-end intellectual property solutions provider serving organizations in more than 30 countries for the optimal management of their IP assets portfolio.”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceHowald, LuxembourgHQ checked Sep 20, 20261,001-5,000707 contacts →

Strong evidence

“The Dennemeyer Group offers high-quality services for the protection and management of Intellectual Property rights and is committed to being the first-choice partner for…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceBoston, MA, United StatesHQ checked Sep 20, 2026501-1,000686 contacts →

Indirect evidence

“Anaqua, Inc.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceIrvine, CA, United StatesHQ checked Sep 20, 2026501-1,000606 contacts →

Indirect evidence

“Knobbe Martens protects the ideas that drive innovation and propel our world forward.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceCourbevoie Cedex, FranceHQ checked Sep 20, 2026501-1,000599 contacts →

Indirect evidence

“L’Institut national de la propriété industrielle (INPI) est un acteur majeur de l’innovation et de la création en France.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceMadrid, SpainHQ checked Sep 20, 2026501-1,000591 contacts →

Indirect evidence

“ClarkeModet is the leading global group in the comprehensive management of intangible assets across Spanish- and Portuguese-speaking markets.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceLondon, United KingdomHQ checked Sep 20, 2026501-1,000584 contacts →

Strong evidence

“Rouse was established in the UK in 1990 and is recognised as a global intellectual property (IP) leader operating as a collaborative network with more than people working out of…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 20, 2026501-1,000573 contacts →

Indirect evidence

“We’re true specialists – focusing on IP and IP alone.”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceLeeds, United KingdomHQ checked Sep 20, 2026201-500538 contacts →

Strong evidence

“HGF is one of Europe’s largest firms of Intellectual Property specialists.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceOttawa, ON, CanadaHQ checked Sep 20, 2026501-1,000521 contacts →

Strong evidence

“Smart & Biggar is a Canadian intellectual property law firm.”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceSeattle, WA, United StatesHQ checked Sep 20, 2026501-1,000488 contacts →

Partial evidence

“Sagacious IP is the World’s LARGEST IP research firm that reliably supports the worldwide IP community including Large Corporations, Small & Mid-size Corporations, IP law firms…”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceNew Delhi, IndiaHQ checked Sep 20, 2026201-500482 contacts →

Strong evidence

“Anand and Anand is a leading full-service intellectual property law firm, providing end-to-end legal solutions across all facets of intellectual property and allied practice areas.”

Source: RevenueBase Database · checked Sep 20, 2026
20Strong evidenceWashington, DC, United StatesHQ checked Sep 20, 2026201-500468 contacts →

Strong evidence

“Sterne, Kessler, Goldstein & Fox is a full-service intellectual property law firm that provides innovative solutions tailored to your business and industry.”

Source: RevenueBase Database · checked Sep 20, 2026
21Strong evidenceGurugram, IndiaHQ checked Sep 20, 2026201-500454 contacts →

Strong evidence

“K&S Partners is a leading intellectual property law firm in India, offering a full range of IP management services to clients worldwide, including Fortune 500 companies.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceBoston, MA, United StatesHQ checked Sep 20, 2026201-500428 contacts →

Indirect evidence

“Wolf, Greenfield & Sacks, P.C.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceNew Delhi, IndiaHQ checked Sep 20, 2026201-500398 contacts →

Indirect evidence

“Create.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceFairport, NY, United StatesHQ checked Sep 20, 202651-200391 contacts →

Indirect evidence

“IP.com's IP and innovation solutions, are designed to deliver secure, AI-powered insights and answers along the lifecycle of innovation.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceCopenhagen, DenmarkHQ checked Sep 20, 2026501-1,000386 contacts →

Indirect evidence

“Zacco is an international full-service IP firm, with around 125 authorised patent attorneys, 75 authorised trademark and design attorneys, and 20 experts in Digital brands and…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 11,216 intellectual property support services worldwide

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Intellectual property support services worldwide at a glance

As of Sep 20, 2026
33.7%Verified-email coverage
11.4Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · New Delhi
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
7,077
11-50
2,990
51-200
791
201-500
214
501-1,000
56
1,001-5,000
33
5,001-10,000
1
10001+
7

Email recency is reported on each country list linked below.

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 support services, 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.
Coverage
Every country. Country and city lists for intellectual property support services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “intellectual property support services”. 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 support services), 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 support services, and records with no verified work email.
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, 43,311 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 20, 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 support services by location

76 lists · largest first

Every Intellectual property support services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 support services, 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 support services are there worldwide?

RevenueBase identified 11,216 intellectual property support services worldwide 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?

Corsearch, headquartered in London, tops this list with the largest team on record.

Which country has the most intellectual property support services?

The United States leads with 2,203 companies, followed by India (1,104) and Brazil (748). Every intellectual property support services list by country and city is linked on this page.

Which city has the most intellectual property support services?

New Delhi leads with 201 headquartered companies, followed by Sao Paulo (189) and Paris (168).

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 43,311 verified decision-maker contacts tracked across these 11,216 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 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 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.