Company lists · Data refreshed November 2026

Top 25 Patent prosecution support services worldwide

RevenueBase identified 4,054 company matches for patent prosecution support services worldwide as of November 2026 and tracks 52,074 professional contacts across them, including 20,195 with verified work emails. The United States is the largest market and Munich the largest hub.

This list covers company matches for patent prosecution support services worldwide, 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 November 6, 2026. Country and city lists for patent prosecution support services follow the table.

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 Nov 6, 2026 How this list was built
4,054Companies
52,074Contacts tracked
20,195Verified emails
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The 25 largest patent prosecution support services worldwide

Ranked by team size
Top 25 of 4,054 company matches for patent prosecution support services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchBoston, IL, United StatesHQ recorded Nov 6, 20261,001-5,0001,550 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWashington, CA, United StatesHQ recorded Nov 6, 2026501-1,000984 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLos Altos, United StatesHQ recorded Nov 6, 2026501-1,000789 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHowald, IL, FranceHQ recorded Nov 6, 20261,001-5,000750 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000614 contacts →

Exact match

“Marks & Clerk is an international intellectual property (IP), technology and legal advisory firm helping organisations protect, commercialise and maximise the value of innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchOttawa, AB, CanadaHQ recorded Nov 6, 2026501-1,000527 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500500 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSeattle, United StatesHQ recorded Nov 6, 2026501-1,000486 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGurgaon, IndiaHQ recorded Nov 6, 2026201-500463 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Nov 6, 2026201-500458 contacts →

Exact match

“Wolf, Greenfield & Sacks, P.C.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500414 contacts →

Exact match

“Spruson & Ferguson is a leading provider of intellectual property (IP) services across the Asia-Pacific region, with more than 490 staff working from our offices in Bangkok…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPretoria, South AfricaHQ recorded Nov 6, 2026201-500367 contacts →

Exact match

“Spoor & Fisher handles the filing, registration, prosecution and enforcement of trade marks, patents, designs and copyright.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMinneapolis, TN, United StatesHQ recorded Nov 6, 2026201-500342 contacts →

Exact match

“An intellectual property law firm at the leading edge of patent, trademark and copyright law, licensing agreements, trade secret litigation, and more, expect a unique combination…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchParis, FranceHQ recorded Nov 6, 2026201-500337 contacts →

Exact match

“Founded in 1906, Plasseraud IP is one of the leading European firms in the IP sector, and among the largest in France.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Nov 6, 2026201-500288 contacts →

Exact match

“For more than 100 years Banner Witcoff has provided sound protection and inventive intellectual property solutions for some of the world’s most innovative organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500285 contacts →

Exact match

“Since being founded more than 75 years ago, we have become Australia’s most trusted intellectual property firm with offices across the country and a well-established presence in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBloomfield Hills, MI, United StatesHQ recorded Nov 6, 2026201-500281 contacts →

Exact match

“Harness IP’s team of patent and trademark attorneys serve clients in all areas of intellectual property law.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact match84 Theobalds Road, United KingdomHQ recorded Nov 6, 2026201-500255 contacts →

Exact match

“At Kilburn & Strode, we work collegiately as a firm, pooling our knowledge and experience, and collaboratively with our clients to achieve their goals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMunich, GermanyHQ recorded Nov 6, 2026201-500251 contacts →

Exact match

“HOFFMANN EITLE is one of the largest intellectual property law firms in Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500250 contacts →

Exact match

“EIP is a leading intellectual property law firm, trusted by businesses worldwide to turn innovation into competitive advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500249 contacts →

Exact match

“Founded in 1920, Dehns is one of Europe’s largest full service intellectual property firms, with offices in London, Munich, Oslo, Oxford, Bristol, Brighton, Manchester and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“Destek Patent is a multinational legal practice that provides full range intellectual property (IP) services including trademarks, patents, industrial designs, new plant varieties…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGurgaon, IndiaHQ recorded Nov 6, 2026201-500244 contacts →

Exact match

“Remfry & Sagar is a pioneering firm that advises more than clients worldwide on their trademarks, patents, designs, copyright, geographical indications, domain names and unfair…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Nov 6, 2026201-500243 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500242 contacts →

Exact match

“J A Kemp is a firm packed with patent and trade mark attorneys at the top of their game, renowned for their technical excellence, human engagement and trusted advice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,054 patent prosecution support services worldwide

See the full list, filter by size, metro and specialty, and access 20,195 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Patent prosecution support services worldwide at a glance

As of Nov 6, 2026
38.8%Verified-email coverage
12.8Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Munich
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,359
11-50
1,208
51-200
327
201-500
101
501-1,000
21
1,001-5,000
9
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for patent prosecution support services are linked below.
What qualifies
Company records worldwide whose business descriptions match “patent prosecution support services” 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. 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 20,195 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 November 6, 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.

Patent prosecution support services by location

31 lists · largest first

Every Patent prosecution 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 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 prosecution support services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many patent prosecution support services are there worldwide?

RevenueBase identified 4,054 company matches for patent prosecution support services worldwide as of November 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?

Fish & Richardson P.C tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most patent prosecution support services?

The United States leads with 1,171 companies, followed by India (382) and Germany (319). Every patent prosecution support services list by country and city is linked on this page.

Which city has the most patent prosecution support services?

Munich leads with 99 company records, followed by New Delhi (58) and Washington (50).

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 20,195 professional contacts with verified work emails tracked across these 4,054 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 November 6, 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.