Company lists · Data refreshed September 2026
Top 25 Big 5 law firms based in the United Kingdom
RevenueBase identified 2,288 company matches for big 5 law firms associated with the United Kingdom as of September 2026 and tracks 192,863 professional contacts across them, including 103,090 with verified work emails and 15,394 with mobile numbers. London is the largest hub.
This list covers company matches for big 5 law firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 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.
The 25 largest big 5 law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,673 contacts → | ||||
Exact match “We are a global law firm dedicated to creating advantage for our clients.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 2 | 6,805 contacts → | ||||
Exact match “Linklaters is a leading global law firm, supporting and investing in the future of our clients wherever they do business.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 3 | 6,487 contacts → | ||||
Exact match “Freshfields is a global firm with over 280 years’ experience of anticipating change, setting new standards and shaping the future of law.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 4 | 5,079 contacts → | ||||
Exact match “Clyde & Co is a leading global law firm, helping organisations successfully navigate risk and maximise opportunity in the sectors that underpin global trade and commercial…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 5 | 4,611 contacts → | ||||
Exact match “Ashurst has combined with Perkins Coie to form Ashurst Perkins Coie.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 6 | 3,981 contacts → | ||||
Exact match “A pioneering global law practice, we provide high quality legal advice and innovation worldwide.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 7 | 3,870 contacts → | ||||
Exact match “Pinsent Masons is a multinational professional services business with a robust legal foundation, operating with a clear purpose-led strategy.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 8 | 3,187 contacts → | ||||
Exact match “Bird & Bird is an international law firm with a focus on helping organisations being changed by technology and the digital world.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 9 | 3,097 contacts → | ||||
Exact match “Welcome to Addleshaw Goddard (AG).” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 10 | 2,880 contacts → | ||||
Exact match “Irwin Mitchell is one of the UK’s largest full-service law firms, We believe everyone deserves clear legal guidance, strong advocacy, and genuine care.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 11 | 2,738 contacts → | ||||
Exact match “On May 1, 2024, Allen & Overy and Shearman & Sterling merged to become A&O Shearman.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 12 | 2,719 contacts → | ||||
Exact match “DAC Beachcroft is a leading international legal business with offices across Europe, Latin America, North America and Asia Pacific.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 13 | 2,498 contacts → | ||||
Exact match “An international law firm that acts like your business partner.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 14 | 2,170 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 15 | 2,104 contacts → | ||||
Exact match “We’re an international legal practice and our goal is simple: to help our clients and our people succeed in tomorrow’s world.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 16 | 1,951 contacts → | ||||
Exact match “Slaughter and May is regarded as one of the most prestigious law firms in the world.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 17 | 1,940 contacts → | ||||
Exact match “Fieldfisher is an enterprising European law firm built around people.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 18 | 1,797 contacts → | ||||
Exact match “We’re your business advisers as well as your lawyers, working in step with you to protect your interests today and progress your ambitions for tomorrow.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 19 | 1,503 contacts → | ||||
Exact match “We’re Browne Jacobson.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 20 | 1,474 contacts → | ||||
Exact match “Stephenson Harwood is an international law firm, and we're committed to creating 'positive partnerships' with our clients.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 21 | 1,444 contacts → | ||||
Exact match “We’re the law firm clients choose for excellent service, incisive thinking and above all for our ability to focus on what matters.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 22 | 1,406 contacts → | ||||
Exact match “HFW is a leading global law firm in the aerospace, commodities, construction, energy, insurance, and shipping sectors.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 23 | 1,376 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 24 | 1,353 contacts → | ||||
Exact match “At Mills & Reeve, our 1,450 plus people and over 850 lawyers share one vision – achieve more together.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
| 25 | 1,231 contacts → | ||||
Exact match “An unpredictable world calls for a progressive-thinking law firm that’s aligned to your ambitions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “big 5 law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,288 big 5 law firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 103,090 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Big 5 law firms based in the United Kingdom at a glance
As of Sep 23, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 25.0dCompany record updated
Median 75.0dHow this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with the United Kingdom whose business descriptions match “big 5 law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 103,090 professional contacts with verified work emails across the full matched dataset. 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 23, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “big 5 law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many big 5 law firms are there based in the United Kingdom?
RevenueBase identified 2,288 company matches for big 5 law firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Clifford Chance tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most big 5 law firms?
London leads with 718 company records, followed by Manchester (78) and Birmingham (49).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 103,090 professional contacts with verified work emails tracked across these 2,288 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,288 big 5 law firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
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Browse the directory
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.
More company lists
Company intelligence · public preview
Top 25 big 5 law firms based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,288 matching company records for big 5 law firms based in the United Kingdom, with 192,863 tracked contacts and 103,090 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 23, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 big 5 law firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Clifford Chancecliffordchance.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 7,673 contacts → |
“We are a global law firm dedicated to creating advantage for our clients.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Linklaterslinklaters.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 6,805 contacts → |
“Linklaters is a leading global law firm, supporting and investing in the future of our clients wherever they do business.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Freshfieldsfreshfields.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 6,487 contacts → |
“Freshfields is a global firm with over 280 years’ experience of anticipating change, setting new standards and shaping the future of law.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Clyde & COclydeco.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 5,079 contacts → |
“Clyde & Co is a leading global law firm, helping organisations successfully navigate risk and maximise opportunity in the sectors that underpin global trade and commercial…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ashurstashurstperkinscoie.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 4,611 contacts → |
“Ashurst has combined with Perkins Coie to form Ashurst Perkins Coie.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Eversheds Sutherlandeversheds-sutherland.comHQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 3,981 contacts → |
“A pioneering global law practice, we provide high quality legal advice and innovation worldwide.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Pinsent Masonspinsentmasons.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,870 contacts → |
“Pinsent Masons is a multinational professional services business with a robust legal foundation, operating with a clear purpose-led strategy.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Bird & Birdtwobirds.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,187 contacts → |
“Bird & Bird is an international law firm with a focus on helping organisations being changed by technology and the digital world.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Addleshaw Goddardaddleshawgoddard.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,097 contacts → |
“Welcome to Addleshaw Goddard (AG).” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Irwin Mitchellirwinmitchell.comHQ: Sheffield, United KingdomReported employees: 1,001-5,000 | Sheffield, United Kingdom | 1,001-5,000 | Exact match | 2,880 contacts → |
“Irwin Mitchell is one of the UK’s largest full-service law firms, We believe everyone deserves clear legal guidance, strong advocacy, and genuine care.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Allen & Overyaoshearman.comHQ: Global, United KingdomReported employees: 1,001-5,000 | Global, United Kingdom | 1,001-5,000 | Exact match | 2,738 contacts → |
“On May 1, 2024, Allen & Overy and Shearman & Sterling merged to become A&O Shearman.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  DAC Beachcroftdacbeachcroft.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,719 contacts → |
“DAC Beachcroft is a leading international legal business with offices across Europe, Latin America, North America and Asia Pacific.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Simmons & Simmonssimmons-simmons.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,498 contacts → |
“An international law firm that acts like your business partner.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Mcguirewoods LLPmcguirewoods.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,170 contacts → |
“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…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Osborne Clarkeosborneclarke.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,104 contacts → |
“We’re an international legal practice and our goal is simple: to help our clients and our people succeed in tomorrow’s world.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Slaughter And MAYslaughterandmay.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,951 contacts → |
“Slaughter and May is regarded as one of the most prestigious law firms in the world.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Fieldfisherfieldfisher.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,940 contacts → |
“Fieldfisher is an enterprising European law firm built around people.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  TLT LLPtlt.comHQ: Bristol, United KingdomReported employees: 1,001-5,000 | Bristol, United Kingdom | 1,001-5,000 | Exact match | 1,797 contacts → |
“We’re your business advisers as well as your lawyers, working in step with you to protect your interests today and progress your ambitions for tomorrow.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Browne Jacobsonbrownejacobson.comHQ: Nottingham, United KingdomReported employees: 1,001-5,000 | Nottingham, United Kingdom | 1,001-5,000 | Exact match | 1,503 contacts → |
“We’re Browne Jacobson.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Stephenson Harwood LLPstephensonharwood.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,474 contacts → |
“Stephenson Harwood is an international law firm, and we're committed to creating 'positive partnerships' with our clients.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Shoosmithsshoosmiths.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,444 contacts → |
“We’re the law firm clients choose for excellent service, incisive thinking and above all for our ability to focus on what matters.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  HFWhfw.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,406 contacts → |
“HFW is a leading global law firm in the aerospace, commodities, construction, energy, insurance, and shipping sectors.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Mishcon DE Reya LLPmishcon.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,376 contacts → |
“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.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Mills & Reevemills-reeve.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,353 contacts → |
“At Mills & Reeve, our 1,450 plus people and over 850 lawyers share one vision – achieve more together.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Hill Dickinson LLPhilldickinson.comHQ: Liverpool, United KingdomReported employees: 1,001-5,000 | Liverpool, United Kingdom | 1,001-5,000 | Exact match | 1,231 contacts → |
“An unpredictable world calls for a progressive-thinking law firm that’s aligned to your ambitions.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,288 company matches
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Big 5 law firms: dataset insights
September 23, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
2,270 records in the displayed employee bands.
18 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 25.0dCompany record updated
Median 75.0dHow this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 23, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for big 5 law firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many big 5 law firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,288 matching company records, 192,863 tracked contacts and 103,090 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 23, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Big 5 law firms by geography
- Big 5 law firms based in Brazil
- Big 5 law firms based in the United States
- Big 5 law firms based in France
- Big 5 law firms based in Germany
- Big 5 law firms based in Italy
- Big 5 law firms based in South Africa
- Big 5 law firms based in Spain
- Big 5 law firms based in Canada
- Big 5 law firms based in Switzerland
- Big 5 law firms based in Belgium
- Big 5 law firms based in Mexico
- Big 5 law firms based in Australia
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 big 5 law firms based in the United Kingdom. Snapshot: September 23, 2026. https://revenuebase.ai/companies/big-5-law-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 big 5 law firms based in the United Kingdom
RevenueBase records 2,288 matching company records for big 5 law firms based in the United Kingdom, with 192,863 tracked contacts and 103,090 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 23, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 big 5 law firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Clifford Chancecliffordchance.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 7,673 contacts → |
“We are a global law firm dedicated to creating advantage for our clients.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Linklaterslinklaters.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 6,805 contacts → |
“Linklaters is a leading global law firm, supporting and investing in the future of our clients wherever they do business.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Freshfieldsfreshfields.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 6,487 contacts → |
“Freshfields is a global firm with over 280 years’ experience of anticipating change, setting new standards and shaping the future of law.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Clyde & COclydeco.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 5,079 contacts → |
“Clyde & Co is a leading global law firm, helping organisations successfully navigate risk and maximise opportunity in the sectors that underpin global trade and commercial…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ashurstashurstperkinscoie.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 4,611 contacts → |
“Ashurst has combined with Perkins Coie to form Ashurst Perkins Coie.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Eversheds Sutherlandeversheds-sutherland.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 3,981 contacts → |
“A pioneering global law practice, we provide high quality legal advice and innovation worldwide.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pinsent Masonspinsentmasons.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,870 contacts → |
“Pinsent Masons is a multinational professional services business with a robust legal foundation, operating with a clear purpose-led strategy.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Bird & Birdtwobirds.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,187 contacts → |
“Bird & Bird is an international law firm with a focus on helping organisations being changed by technology and the digital world.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Addleshaw Goddardaddleshawgoddard.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,097 contacts → |
“Welcome to Addleshaw Goddard (AG).” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Irwin Mitchellirwinmitchell.com HQ: Sheffield, United KingdomReported employees: 1,001-5,000 | Sheffield, United Kingdom | 1,001-5,000 | Exact match | 2,880 contacts → |
“Irwin Mitchell is one of the UK’s largest full-service law firms, We believe everyone deserves clear legal guidance, strong advocacy, and genuine care.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Allen & Overyaoshearman.com HQ: Global, United KingdomReported employees: 1,001-5,000 | Global, United Kingdom | 1,001-5,000 | Exact match | 2,738 contacts → |
“On May 1, 2024, Allen & Overy and Shearman & Sterling merged to become A&O Shearman.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | DAC Beachcroftdacbeachcroft.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,719 contacts → |
“DAC Beachcroft is a leading international legal business with offices across Europe, Latin America, North America and Asia Pacific.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Simmons & Simmonssimmons-simmons.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,498 contacts → |
“An international law firm that acts like your business partner.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Mcguirewoods LLPmcguirewoods.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,170 contacts → |
“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…” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Osborne Clarkeosborneclarke.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,104 contacts → |
“We’re an international legal practice and our goal is simple: to help our clients and our people succeed in tomorrow’s world.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Slaughter And MAYslaughterandmay.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,951 contacts → |
“Slaughter and May is regarded as one of the most prestigious law firms in the world.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Fieldfisherfieldfisher.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,940 contacts → |
“Fieldfisher is an enterprising European law firm built around people.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TLT LLPtlt.com HQ: Bristol, United KingdomReported employees: 1,001-5,000 | Bristol, United Kingdom | 1,001-5,000 | Exact match | 1,797 contacts → |
“We’re your business advisers as well as your lawyers, working in step with you to protect your interests today and progress your ambitions for tomorrow.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Browne Jacobsonbrownejacobson.com HQ: Nottingham, United KingdomReported employees: 1,001-5,000 | Nottingham, United Kingdom | 1,001-5,000 | Exact match | 1,503 contacts → |
“We’re Browne Jacobson.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Stephenson Harwood LLPstephensonharwood.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,474 contacts → |
“Stephenson Harwood is an international law firm, and we're committed to creating 'positive partnerships' with our clients.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Shoosmithsshoosmiths.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,444 contacts → |
“We’re the law firm clients choose for excellent service, incisive thinking and above all for our ability to focus on what matters.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HFWhfw.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,406 contacts → |
“HFW is a leading global law firm in the aerospace, commodities, construction, energy, insurance, and shipping sectors.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mishcon DE Reya LLPmishcon.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,376 contacts → |
“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.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Mills & Reevemills-reeve.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,353 contacts → |
“At Mills & Reeve, our 1,450 plus people and over 850 lawyers share one vision – achieve more together.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Hill Dickinson LLPhilldickinson.com HQ: Liverpool, United KingdomReported employees: 1,001-5,000 | Liverpool, United Kingdom | 1,001-5,000 | Exact match | 1,231 contacts → |
“An unpredictable world calls for a progressive-thinking law firm that’s aligned to your ambitions.” Recorded description excerpt · September 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Big 5 law firms: dataset insights
September 23, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
2,270 records in the displayed employee bands.
18 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 25.0dCompany record updated
Median 75.0dHow this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 23, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for big 5 law firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many big 5 law firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,288 matching company records, 192,863 tracked contacts and 103,090 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 23, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 big 5 law firms based in the United Kingdom. Snapshot: September 23, 2026. https://revenuebase.ai/companies/big-5-law-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗