Company lists · Data refreshed September 2026

Top 22 Plagiarism litigation law firms based in London, United Kingdom

RevenueBase identified 43 plagiarism litigation law firms headquartered in London, United Kingdom as of September 2026 and tracks 1,820 professional contacts across them, including 1,117 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers plagiarism litigation law firms headquartered in London, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
43Companies
1,820Contacts tracked
1,117Verified emails
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The 22 largest plagiarism litigation law firms based in London, United Kingdom

Ranked by team size
Top 22 of 43 plagiarism litigation law firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to plagiarism litigation law firms: 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 29, 2026501-1,000573 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500223 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500220 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20097 contacts →

Partial evidence

“Lee & Thompson is one of the UK’s leading law firms for the media, technology and creative industries.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20070 contacts →

Partial evidence

“Powell Gilbert is a boutique law firm dedicated to IP and to serving knowledge, technology and brands based industries.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20061 contacts →

Indirect evidence

“All our practitioners focus on particular technologies or IP disciplines to provide you with a winning combination of technical knowledge, business acumen and a sound appreciation…”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20043 contacts →

Indirect evidence

“A specialist firm of patent attorneys, trade mark attorneys, design attorneys & IP litigators, Beck Greener has offices in London and close to the EUIPO in Alicante.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20034 contacts →

Indirect evidence

“At PATENTICA, we are dedicated to enhancing the value of your intellectual property through every aspect of our work.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5021 contacts →

Partial evidence

“Taylor Hampton is an award winning Media litigation firm situated directly opposite the High Court in the Strand, London.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“A team of award-winning highly experienced Chartered Patent Attorneys, European Patent Attorneys, UK and EU Trade Mark Attorneys and IP litigators with a fresh strategic approach…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-50015 contacts →

Indirect evidence

“From 1 December 2024, all of the Partners and People of AA Thornton IP LLP joined Venner Shipley LLP to carry on business together under the name Venner Shipley.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“European Patent Attorneys, Chartered Patent Attorneys (UK), UK Registered Trade Mark Attorneys.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“The core of the work undertaken in chambers involves patents, registered trade marks, passing off, copyright, registered designs, design rights, confidential information and trade…”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5014 contacts →

Partial evidence

“Gresham Legal is a specialist disputes law firm located at 9 Old Buildings, Lincoln's Inn, London WC2A 3SR.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“Since launching in 2014, Patent Boutique LLP has acquired an enviable track record for delivering results for its growing and impressive client roster.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“We are British and European Patent and Trade Mark Attorneys.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-509 contacts →

Partial evidence

“Intellectual Property and Media Lawyers Hansel Henson is a specialist firm of solicitors with a sole emphasis on soft Intellectual Property and Media law.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-507 contacts →

Partial evidence

“Bear & Wolf are Intellectual Property specialists in trade mark, copyright and design law.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-506 contacts →

Indirect evidence

“Strength in Unity, Excellence in Delivery At Ionic Legal, we're defined by the deep bonds we build with our colleagues and clients and our determination to super please clients.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Applerose Solicitors is a London-based law firm authorised and regulated by the Solicitors Regulation Authority (SRA No.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-501 contacts →

Partial evidence

“Lane IP is a fully serviced Intellectual Property Law Firm based in central London with an International reach with offices in the United Kingdom, Ireland, Hong Kong and China.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Intellectual Property and Technology Solicitors based on Fleet Street in London”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 22 of 43 plagiarism litigation law firms based in London, United Kingdom

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Plagiarism litigation law firms based in London, United Kingdom at a glance

As of Sep 29, 2026
61.4%Verified-email coverage
42.3Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
17
51-200
7
201-500
4
501-1,000
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 43 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 plagiarism litigation law 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 London, United Kingdom whose own description of what they do matches “plagiarism litigation law 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 plagiarism litigation law 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 plagiarism litigation law firms, and records with no verified work email. Companies headquartered outside London 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, 1,117 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 29, 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.

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 plagiarism litigation law 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 plagiarism litigation law firms are there based in London, United Kingdom?

RevenueBase identified 43 plagiarism litigation law firms headquartered in London, 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?

Marks & Clerk, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most plagiarism litigation law firms?

London leads the United Kingdom with 43 headquartered companies, followed by Edinburgh (3) and Leeds (3).

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 1,117 verified decision-maker contacts tracked across these 43 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 29, 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.