Company lists · Data refreshed September 2026
Top 25 Patent law firms based in the United Kingdom
RevenueBase identified 223 patent law firms headquartered in the United Kingdom as of September 2026 and tracks 7,699 professional contacts across them, including 4,918 with verified work emails and 433 with mobile numbers. London is the largest hub.
This list covers patent law firms headquartered in the United Kingdom, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
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.
The 25 largest patent law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | ROUSEIndirect evidence | 584 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 573 | ||||
“We’re true specialists – focusing on IP and IP alone.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 538 | ||||
“HGF is one of Europe’s largest firms of Intellectual Property specialists.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 319 | ||||
“Mewburn Ellis is the forward-looking IP firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 298 | ||||
“Your innovations move the world forward – but great work needs solid foundations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 285 | ||||
“Carpmaels & Ransford LLP The European Intellectual Property Firm Carpmaels & Ransford is a full-service European intellectual property firm at the forefront of a rapidly changing…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 241 | ||||
“At Kilburn & Strode, we work collegiately as a firm, pooling our knowledge and experience, and collaboratively with our clients to achieve their goals.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 229 | ||||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 223 | ||||
“EIP is a leading intellectual property law firm, trusted by businesses worldwide to turn innovation into competitive advantage.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 220 | ||||
“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.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 210 | ||||
“Ideas evolve.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 193 | ||||
“Stobbs IAM blends IP expertise with a knowledge of business, a passion for brands and a practical approach to problem solving.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 189 | ||||
“Venner Shipley is a top-tier European full-service intellectual property firm, providing an innovative, bespoke service through our team of expert European and UK patent, trade…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 184 | ||||
“Withers & Rogers LLP is a leading UK and European firm of patent and trade mark attorneys.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 167 | ||||
“Appleyard Lees is a leading intellectual property law firm, with over eighty patent and trade mark attorneys and litigators.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 167 | ||||
“We are a leading European IP patent, design and trade mark firm recognised throughout the IP world for its commercial awareness and commitment to clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 149 | ||||
“Reddie & Grose is a firm of European and UK intellectual property attorneys with a highly experienced and friendly team.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 145 | ||||
“Chartered Patent Attorneys, European Patent Attorneys, Trade Mark Attorneys.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 114 | ||||
“Gill Jennings & Every LLP is a leading firm of European Patent and Trade Mark Attorneys with offices in London and Munich.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 110 | ||||
“Maucher Jenkins is a pan-European intellectual property firm of UK, German and European Patent and Trade Mark Attorneys, Attorneys-at-Law and IP Litigators, uniquely placed to…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 108 | ||||
“Keltie is a European IP firm with a unique personality.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 102 | ||||
“At Abel + Imray, we blend legal experience with commercial awareness to advise and represent our clients on all aspects of patent, trade mark, and design law in the UK, Europe and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Powell GilbertPartial evidence | 70 | |||
“Powell Gilbert is a boutique law firm dedicated to IP and to serving knowledge, technology and brands based industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 69 | ||||
“Elkington + Fife is a leading firm of patent attorneys and trade mark attorneys.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 61 | ||||
“Brandsmiths is the UK's leading IP law firm, built for brands with offices in London and Manchester.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 223 patent law firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 4,918 reachable decision-makers.
Free signup · no credit card
Patent law firms based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 patent law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “patent law firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among patent law firms, and records with no verified work email. Companies headquartered outside United Kingdom 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 an evidence 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, 4,918 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 5, 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.
Patent law firms by metro
- Patent law firms in London72
Frequently asked
How many patent law firms are there based in the United Kingdom?
RevenueBase identified 223 patent law firms headquartered in the United Kingdom 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?
ROUSE, headquartered in London, tops this list with the largest team on record.
Which city has the most patent law firms?
London leads with 72 headquartered companies, followed by Leeds (9) and Cambridge (7).
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 4,918 verified decision-maker contacts tracked across these 223 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 223 patent law firms based in the United Kingdom. Start with a free account, no credit card.
Get the full listRelated lists
Patent law firms by geography
- Patent law firms based in the United States
- Patent law firms based in Germany
- Patent law firms based in Brazil
- Patent law firms based in France
- Patent law firms based in Italy
- Patent law firms based in Canada
- Patent law firms based in Mexico
- Patent law firms based in Spain
- Patent law firms based in Australia
- Patent law firms based in the Netherlands
- Patent law firms based in Poland
- Patent law firms based in Israel
Browse the directory
Browse: Companies home · All United Kingdom lists · All Patent law firms lists · New lists
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.