Company lists · Data refreshed September 2026

Top 25 Patent law firms pharmaceutical based in the United Kingdom

Name: Patent law firms pharmaceutical based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 207 companies tracked

RevenueBase identified 207 patent law firms pharmaceutical headquartered in the United Kingdom as of September 2026 and tracks 7,693 professional contacts across them, including 4,773 with verified work emails and 447 with mobile numbers. London is the largest hub.

This list covers patent law firms pharmaceutical 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

207Companies

7,693Contacts tracked

4,773Verified emails

447Mobile numbers

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The 25 largest patent law firms pharmaceutical based in the United Kingdom

Ranked by team size

Top 25 of 207 patent law firms pharmaceutical based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names patent law firms pharmaceutical: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	ROUSEIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	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, 2026
2	Marks & ClerkIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	573
	“We’re true specialists – focusing on IP and IP alone.” Source: company website · checked Sep 5, 2026
3	HGF LimitedIndirect evidence	Leeds, United KingdomHQ checked Sep 5, 2026	201-500	538
	“HGF is one of Europe’s largest firms of Intellectual Property specialists.” Source: company website · checked Sep 5, 2026
4	Mewburn EllisIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	319
	“Mewburn Ellis is the forward-looking IP firm.” Source: company website · checked Sep 5, 2026
5	MurgitroydIndirect evidence	Glasgow, United KingdomHQ checked Sep 5, 2026	201-500	298
	“Your innovations move the world forward – but great work needs solid foundations.” Source: company website · checked Sep 5, 2026
6	Carpmaels & RansfordIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
7	Kilburn & StrodeIndirect evidence	84 Theobalds Road, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
8	DEHNSIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
9	D Young & CO LLPIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	226
	“D Young & Co is a leading top-tier European intellectual property firm, dedicated to protecting and enforcing our clients’ IP rights.” Source: company website · checked Sep 5, 2026
10	EIPPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
11	J A KempPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
12	Potter ClarksonIndirect evidence	Nottingham, United KingdomHQ checked Sep 5, 2026	201-500	210
	“Ideas evolve.” Source: company website · checked Sep 5, 2026
13	Venner ShipleyPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
14	Withers & RogersPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	184
	“Withers & Rogers LLP is a leading UK and European firm of patent and trade mark attorneys.” Source: company website · checked Sep 5, 2026
15	Appleyard Lees IP LLPStrong evidence	Halifax, United KingdomHQ checked Sep 5, 2026	51-200	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, 2026
16	BOULTPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	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, 2026
17	Reddie & Grose Patent And Trade Mark AttorneysIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
18	JohnsonsPartial evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	11-50	145
	“Chartered Patent Attorneys, European Patent Attorneys, Trade Mark Attorneys.” Source: company website · checked Sep 5, 2026
19	Barker BrettellIndirect evidence	Birmingham, United KingdomHQ checked Sep 5, 2026	51-200	127
	“Barker Brettell is a large UK Intellectual Property firm with 55+ attorneys and a large team of professional support staff, specialising in IP portfolio strategy and management…” Source: company website · checked Sep 5, 2026
20	Gill Jennings & Every LLPPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	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, 2026
21	Maucher JenkinsStrong evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	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, 2026
22	KeltieIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	108
	“Keltie is a European IP firm with a unique personality.” Source: company website · checked Sep 5, 2026
23	Abel ImrayStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	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, 2026
24	Powell GilbertPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	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, 2026
25	BrandsmithsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	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, 2026

Showing 25 of 207 patent law firms pharmaceutical based in the United Kingdom

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Patent law firms pharmaceutical based in the United Kingdom at a glance

As of Sep 5, 2026

11-50Median size (employees)

LondonLargest hub · 68 HQs

447Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Verified emails by last verification

0–30

4,521

31–60

243

61–90

90–180

180+

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 pharmaceutical, 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 pharmaceutical”. 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 pharmaceutical, 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, 4,773 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 pharmaceutical by metro

Patent law firms pharmaceutical in London68

Frequently asked

How many patent law firms pharmaceutical are there based in the United Kingdom?

RevenueBase identified 207 patent law firms pharmaceutical 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 pharmaceutical?

London leads with 68 headquartered companies, followed by Leeds (9) and Glasgow (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 4,773 verified decision-maker contacts tracked across these 207 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.

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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.