Company lists · Data refreshed September 2026
Top 25 Advertising law firms based in the United Kingdom
RevenueBase identified 186 advertising law firms headquartered in the United Kingdom as of September 2026 and tracks 4,103 professional contacts across them, including 2,332 with verified work emails. London is the largest hub.
This list covers advertising 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 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.
The 25 largest advertising law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 573 contacts → | ||||
Indirect evidence “We’re true specialists – focusing on IP and IP alone.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 413 contacts → | ||||
Partial evidence “Talbots Law can offer your business a wide range of legal services - no matter what business you are in.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 240 contacts → | ||||
Partial evidence “Wiggin is a law firm focusing exclusively on Media, Entertainment, Technology and Brands/IP.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 220 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 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 208 contacts → | ||||
Indirect evidence “At Taylor Emmet, we have one simple aim, and that is to provide legal advice that supports and protects you and your business; giving you total peace of mind.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 145 contacts → | ||||
Partial evidence “FBC Manby Bowdler is an award-winning, full-service law firm that has been uncomplicating the legal process for individuals and businesses for nearly 200 years.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 145 contacts → | ||||
Indirect evidence “Chartered Patent Attorneys, European Patent Attorneys, Trade Mark Attorneys.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 123 contacts → | ||||
Indirect evidence “Paul Robinson Solicitors LLP offer a complete range of legal services to individuals and businesses locally, in Essex and London.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 104 contacts → | ||||
Indirect evidence “At Harrowells, we’re a team of friendly and talented lawyers offering expert advice to businesses and individuals on a wide range of legal matters.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 97 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 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 84 contacts → | ||||
Partial evidence “Thompson Smith and Puxon is a leading law firm with offices in Colchester and Clacton.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 81 contacts → | ||||
Partial evidence “The go-to media, entertainment & commercial law experts, providing the full range of legal services you would expect from a leading and award-winning law firm that has been…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 61 contacts → | ||||
Partial evidence “Brandsmiths is the UK's leading IP law firm, built for brands with offices in London and Manchester.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 54 contacts → | ||||
Partial evidence “At Conscious, we have over 20 years of experience in helping law firms become more successful online.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 49 contacts → | ||||
Partial evidence “Geoffrey Leaver Solicitors LLP is a modern successful law firm providing legal services and advice to businesses, organisations and individuals.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 46 contacts → | ||||
Partial evidence “Onside Law is unique in combining senior in-house experience from within the sports, media and entertainment industry with first class city law firm backgrounds.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 46 contacts → | ||||
Partial evidence “Rix & Kay is a full service law firm with offices in Ashford, Brighton & Hove, Sevenoaks and Uckfield.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 44 contacts → | ||||
Partial evidence “DFA Law has been advising clients in Northamptonshire, and across the region, for over 180 years.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 43 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 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 41 contacts → | ||||
Indirect evidence “Pickerings Solicitors are an award winning company - providing expert legal advice for you, your family and your business.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 contacts → | ||||
Partial evidence “360 Law Services, part of the 360 Law Group, is a pioneering law firm covering all areas of business and consumer law that is changing the way law is practiced in the UK.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 contacts → | ||||
Indirect evidence “We're commercial business lawyers, primarily in the fashion, sport, food and beverage and automotive sectors, helping our brands with their home operations and international…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 contacts → | ||||
Partial evidence “Founded by the trailblazing Margaret Briffa in 1995 Briffa specialises in all aspects intellectual property and IT law.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Partial evidence “We act for clients in all areas of IP Law, particularly patent, trade mark, design right and copyright law.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 34 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 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: advertising law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names advertising law firms.
- Partial evidence
- Its own public description names part of advertising law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name advertising law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 186 advertising law firms based in the United Kingdom
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Advertising law firms based in the United Kingdom at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 186 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 advertising 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 the United Kingdom whose own description of what they do matches “advertising 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 advertising 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 advertising 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 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, 2,332 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 14, 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.
Advertising law firms by metro
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 advertising 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 advertising law firms are there based in the United Kingdom?
RevenueBase identified 186 advertising 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?
Marks & Clerk, headquartered in London, tops this list with the largest team on record.
Which city has the most advertising law firms?
London leads with 72 headquartered companies, followed by Bristol (6) and Liverpool (6).
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 2,332 verified decision-maker contacts tracked across these 186 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 14, 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.