Company lists · Data refreshed August 2026
Top 25 Law firms based in London, United Kingdom
This directory lists 1,416 law firms based in London, United Kingdom, with 61,152 professional contacts and 34,308 email addresses. As of August 2026, London is the single most-represented city among the companies listed.
Law firms are professional service organizations that provide legal advice, representation, and related services through licensed attorneys. This list covers companies that provide legal advice, legal representation, or related legal services through licensed attorneys. Ranked by team size, largest first. Data current as of August 31, 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 law firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,746 contacts → | ||||
Strong evidence “Linklaters is a leading global law firm, supporting and investing in the future of our clients wherever they do business.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,494 contacts → | ||||
Strong evidence “Freshfields is a global firm with over 280 years’ experience of anticipating change, setting new standards and shaping the future of law.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,289 contacts → | ||||
Strong evidence “Holland & Knight is a global law firm with more than 2,200 lawyers and other professionals in 35 offices throughout the world.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,198 contacts → | ||||
Strong evidence “McGuireWoods, one of the world’s leading law firms, has earned the loyalty of its many longstanding clients with deep and broad legal experience; a passion for understanding their…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,955 contacts → | ||||
Strong evidence “Slaughter and May is regarded as one of the most prestigious law firms in the world.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,590 contacts → | ||||
Indirect evidence “Cravath has been known as one of the premier U.S.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,479 contacts → | ||||
Strong evidence “As a top-ranked Canadian business law firm, we advise clients on complex legal matters across borders and industries.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,371 contacts → | ||||
Indirect evidence “Based in London, Mishcon de Reya services an international community of clients and provides advice in situations where the constraints of geography often do not apply.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,112 contacts → | ||||
Indirect evidence “Trowers & Hamlins is well known for its eclectic mix of specialisations combining sector leadership in the UK and across the Middle East and Asia.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,013 contacts → | ||||
Strong evidence “Macfarlanes is a pre-eminent law firm that serves a global client base in Private Capital, Private Wealth, M&A and Disputes.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 11 | 857 contacts → | ||||
Strong evidence “Hengeler Mueller is an international law firm with offices in Berlin, Brussels, Düsseldorf, Frankfurt, London and Munich.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 12 | 758 contacts → | ||||
Strong evidence “HCR Law is an expert legal firm that delivers results.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 13 | 727 contacts → | ||||
Indirect evidence “At JMW Solicitors LLP we strive to offer the very best in professional legal services.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 14 | 693 contacts → | ||||
Indirect evidence “Farrer & Co is synonymous with the highest quality legal advice and service.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 15 | 628 contacts → | ||||
Strong evidence “With over 600 people, including 400 lawyers and professional staff, McCann FitzGerald LLP is one of Ireland’s premier law firms.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 16 | 592 contacts → | ||||
Strong evidence “We’re Forsters, a leading law firm renowned for our private client and real estate focus.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 17 | 571 contacts → | ||||
Strong evidence “Brown Rudnick is a leading international law firm that provides exceptional, client-driven service in global litigation, crisis management (restructuring, investigations and…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 18 | 564 contacts → | ||||
Indirect evidence “Refreshingly straightforward and open in our approach, we invest in our relationships and will care as much as you do about the outcome, whether that’s delivering your commercial…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 19 | 555 contacts → | ||||
Strong evidence “Kingsley Napley is an internationally recognised law firm based in central London.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 20 | 518 contacts → | ||||
Indirect evidence “Fondato nel ADVANT Nctm è uno studio legale indipendente con oltre 350 avvocati e dottori commercialisti, uno dei principali in Italia.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 21 | 460 contacts → | ||||
Strong evidence “We are a London based, full-service law firm, specialising in providing straightforward advice to ambitious clients ranging from entrepreneurial businesses, family offices and…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 22 | 436 contacts → | ||||
Indirect evidence “Fladgate has always been structured around deep relationships, true partnerships with clients.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 23 | 399 contacts → | ||||
Strong evidence “Russell-Cooke is a top 100 law firm advising a mix of commercial, regulatory, not-for-profit and private clients across a broad range of services.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 24 | 386 contacts → | ||||
Strong evidence “Wikborg Rein is an international law firm with headquarters in Oslo and offices in Bergen, London, Singapore and Shanghai.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 25 | 375 contacts → | ||||
Indirect evidence “At Wedlake Bell, we work together to provide our clients throughout the UK and internationally with a seamless legal service to satisfy all their objectives – whether it is…” Source: RevenueBase Database · checked Aug 31, 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: 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 law firms.
- Partial evidence
- Its own public description names part of law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name 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 1,416 law firms based in London, United Kingdom
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Law firms based in London, United Kingdom at a glance
As of Aug 31, 2026Companies by employee count
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 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 “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 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 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, 34,308 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 August 31, 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.
Law firms by metro in the United Kingdom
- Law firms in London1474
- Law firms in Manchester173
- Law firms in Birmingham94
- Law firms in Leeds78
- Law firms in Liverpool66
- Law firms in Bristol57
- Law firms in Glasgow55
Frequently asked
How many law firms are listed based in London, United Kingdom?
The directory includes 1,416 law firms based in London, United Kingdom as of August 2026.
Where are most of the listed law firms located?
London is the single most-represented city among the law firms on the list.
How many contacts and email addresses are available for these law firms?
The list includes 61,152 professional contacts and 34,308 email addresses for the listed law firms.
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Law firms by geography
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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.