Company lists · Data refreshed September 2026
Top 25 Global mobility law firms based in London, United Kingdom
RevenueBase identified 393 global mobility law firms headquartered in London, United Kingdom as of September 2026 and tracks 68,019 professional contacts across them, including 24,441 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers global mobility 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 28, 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 global mobility law firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,805 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 Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,487 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 Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,284 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,611 contacts → | ||||
Indirect evidence “Ashurst has combined with Perkins Coie to form Ashurst Perkins Coie.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 3,981 contacts → | ||||
Strong evidence “A pioneering global law practice, we provide high quality legal advice and innovation worldwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,474 contacts → | ||||
Partial evidence “Stephenson Harwood is an international law firm, and we're committed to creating 'positive partnerships' with our clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,406 contacts → | ||||
Strong evidence “HFW is a leading global law firm in the aerospace, commodities, construction, energy, insurance, and shipping sectors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,376 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 Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,353 contacts → | ||||
Indirect evidence “At Mills & Reeve, our 1,450 plus people and over 850 lawyers share one vision – achieve more together.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,219 contacts → | ||||
Indirect evidence “We help people work, live and thrive in new places around the world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,155 contacts → | ||||
Partial evidence “Taylor Rose is a top 60 independent law firm with 1,700 experts operating nationwide and is recommended by the Legal 500 UK.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 460 contacts → | ||||
Partial 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 Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 409 contacts → | ||||
Strong evidence “Spencer West is a leading full-service international law firm, committed to a values-led approach and advising businesses and individuals globally.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 354 contacts → | ||||
Indirect evidence “We are a European headquartered hub for litigation, transactions and advice throughout the world and have remained fiercely independent since we first began in 1837.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 196 contacts → | ||||
Indirect evidence “Sable brings together a group of companies that specialise in unique financial and immigration services for businesses and individuals.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 173 contacts → | ||||
Strong evidence “ECA is a world leader in Global Mobility.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 171 contacts → | ||||
Indirect evidence “Our pioneering integrated approach to professional services cuts through the complicated layers of the legal and accountancy world to give you straightforward joined-up advice and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 152 contacts → | ||||
Indirect evidence “As of 1 June 2026, Taylor Wessing's UK-led businesses combined with Winston & Strawn to become Winston Taylor.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 134 contacts → | ||||
Partial evidence “Healys is a leading UK law firm with international reach.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 101 contacts → | ||||
Indirect evidence “Oracle Solicitors is an experienced team of creative legal problem-solvers, based in London, Belfast, Naples, Frankfurt and Addis Ababa.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 97 contacts → | ||||
Indirect evidence “Legal issues can be complex and stressful – even those which might initially seem straightforward.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 89 contacts → | ||||
Partial evidence “Delivering legal solutions, differently - that's the purpose of arch.law We recognise that clients have different requirements dependent upon their size and complexity.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 85 contacts → | ||||
Indirect evidence “We offer legal and advisory support to clients on issues arising in the workplace, and provide realistic and effective solutions on employment, business and personal immigration…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 82 contacts → | ||||
Partial evidence “The world doesn’t need another law firm simply waiting to take instructions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 80 contacts → | ||||
Indirect evidence “We believe in offering the extraordinary with personal services tailored just for you.” Source: RevenueBase Database · checked Sep 28, 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: global mobility 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 global mobility law firms.
- Partial evidence
- Its own public description names part of global mobility law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name global mobility 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 393 global mobility law firms based in London, United Kingdom
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Global mobility law firms based in London, United Kingdom at a glance
As of Sep 28, 2026Companies by employee count
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 393 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 global mobility 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 “global mobility 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 global mobility 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 global mobility 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, 24,441 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 28, 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.
Global mobility law firms by metro in the United Kingdom
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 global mobility 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 global mobility law firms are there based in London, United Kingdom?
RevenueBase identified 393 global mobility 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?
Linklaters, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most global mobility law firms?
London leads the United Kingdom with 393 headquartered companies, followed by Manchester (26) and Birmingham (13).
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 24,441 verified decision-maker contacts tracked across these 393 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 28, 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.
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