Company lists · Data refreshed September 2026
Top 25 O-1 visa law firms based in the United Kingdom
RevenueBase identified 132 company matches for o-1 visa law firms associated with the United Kingdom as of September 2026 and tracks 718 professional contacts across them, including 176 with verified work emails. London is the largest hub.
This list covers company matches for o-1 visa 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 29, 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 o-1 visa law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 126 contacts → | ||||
Exact match “At Immigration Advice Service, we are more than just immigration solicitors; we are your dedicated partners in navigating the intricate world of immigration law.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 24 contacts → | ||||
Exact match “Public Law 2.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 22 contacts → | ||||
Exact match “At Samartin & Friends, we specialise in helping people and businesses navigate the often complex process of U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 19 contacts → | ||||
Exact match “We are asylum and immigration law specialists based in Glasgow.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 16 contacts → | ||||
Exact match “We can help you, whether you’re wanting to apply for a UK visa, apply for an extension, or for asylum.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 16 contacts → | ||||
Exact match “Welcome to NARA Solicitors, a modern law firm with a commitment to delivering exceptional legal services, operating under the regulation of the Solicitors Regulation Authority.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 16 contacts → | ||||
Exact match “M-R Solicitors LLP is one of the top UK law firms providing services to large portfolio of clients in private and business sector from last 14 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 14 contacts → | ||||
Exact match “We are highly motivated and committed to the field of immigration law.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 13 contacts → | ||||
Exact match “Flynn Hodkinson is a boutique US visa and nationality law practice based in the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 12 contacts → | ||||
Exact match “Andrew Williams Solicitors is a Leeds-based, SRA-regulated law firm with 34+ years of combined immigration law experience.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 11 contacts → | ||||
Exact match “SKY SOLICITORS LTD is a company based out of 60 HIGH ROAD LEYTON, LONDON, United Kingdom.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 11 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 10 contacts → | ||||
Exact match “Specialist Immigration Solicitors, established 1994, having dealt with over applications.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 9 contacts → | ||||
Exact match “Optimus Law has a wide range of knowledge and experience when it comes to all aspects of Immigration Law and Asylum.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 9 contacts → | ||||
Exact match “SMK Law Solicitors specialise in immigration, asylum and human rights law.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match “Sultan Lloyd Solicitors Limited is a law practice company based out of 526 Coventry Rd, Small Heath, United Kingdom.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “Charles Simmons Immigration Solicitors is a leading law firm delivering high quality immigration advice” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Brill Immigration is a US immigration law firm based in London’s Fitzrovia serving some of the world’s best creatives and entrepreneurs, multinational businesses, film and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “From offices in the US and the UK, NNU Immigration is a leading firm of US immigration attorneys, advising global businesses, entrepreneurs and high net-worth private clients…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match “You can be assured that SH Solicitors will provide an efficient, professional and highly competitive service.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “With decades of experience and an exceptionally high success rate in family and immigration law, you can trust Osbourne Pinner with your case.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 5 contacts → | ||||
Exact match “Ortega-Medina & Associates is a firm of United States business immigration lawyers, with associated offices in London, San Francisco and Miami Beach.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 5 contacts → | ||||
Exact match “At the heart of WestBridge is a dedicated team of immigration and employment law experts with over 13 years of experience, offering tailored legal solutions to businesses of all…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 5 contacts → | ||||
Exact match “At Bukhari Chambers we strive to provide holistic solutions that directly respond to our clients' individual needs.” Recorded in the RevenueBase company graph · Sep 29, 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 “o-1 visa 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 132 o-1 visa law firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 176 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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O-1 visa law firms based in the United Kingdom at a glance
As of Sep 29, 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 132 companies.
How 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 “o-1 visa 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 176 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 29, 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.
O-1 visa law firms by metro
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 “o-1 visa law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many o-1 visa law firms are there based in the United Kingdom?
RevenueBase identified 132 company matches for o-1 visa 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?
Immigration Advice Service tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most o-1 visa law firms?
London leads with 62 company records, followed by Birmingham (9) and Manchester (6).
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 176 professional contacts with verified work emails tracked across these 132 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 132 o-1 visa law firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
O-1 visa law firms by geography
- O-1 visa law firms based in Toronto, Canada
- O-1 visa law firms based in London, United Kingdom
- O-1 visa law firms based in Atlanta, United States
- O-1 visa law firms based in Austin, United States
- O-1 visa law firms based in Boston, United States
- O-1 visa law firms based in Chicago, United States
- O-1 visa law firms based in Dallas, United States
- O-1 visa law firms based in Houston, United States
- O-1 visa law firms based in Los Angeles, United States
- O-1 visa law firms based in Miami, United States
- O-1 visa law firms based in New York, United States
- O-1 visa law firms based in Orlando, United States
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
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- O-1 visa law firms based in Toronto, Canada
- O-1 visa law firms based in London, United Kingdom
- O-1 visa law firms based in Atlanta, United States
- O-1 visa law firms based in Austin, United States
- O-1 visa law firms based in Boston, United States
- O-1 visa law firms based in Chicago, United States
Company intelligence · public preview
Top 25 o-1 visa 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 132 matching company records for o-1 visa law firms based in the United Kingdom, with 718 tracked contacts and 176 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 29, 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 o-1 visa 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 |  Immigration Advice Serviceiasservices.org.ukHQ: Oldham, United KingdomReported employees: 51-200 | Oldham, United Kingdom | 51-200 | Exact match | 126 contacts → |
“At Immigration Advice Service, we are more than just immigration solicitors; we are your dedicated partners in navigating the intricate world of immigration law.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  S. A. J Legalsaj.legalHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Public Law 2.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Samartin And Friendssamartinandfriends.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 22 contacts → |
“At Samartin & Friends, we specialise in helping people and businesses navigate the often complex process of U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mcglashan Mackay Solicitorsmcglashanmackay.com HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 19 contacts → |
“We are asylum and immigration law specialists based in Glasgow.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Batley LAWbatleylaw.co.ukHQ: Batley, United KingdomReported employees: 11-50 | Batley, United Kingdom | 11-50 | Exact match | 16 contacts → |
“We can help you, whether you’re wanting to apply for a UK visa, apply for an extension, or for asylum.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Nara Solicitorsnarasolicitors.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 16 contacts → |
“Welcome to NARA Solicitors, a modern law firm with a commitment to delivering exceptional legal services, operating under the regulation of the Solicitors Regulation Authority.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  M-R Solicitors LLPm-rsolicitors.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 16 contacts → |
“M-R Solicitors LLP is one of the top UK law firms providing services to large portfolio of clients in private and business sector from last 14 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Buckingham Legal Associatesbuckslegal.co.uk HQ: High Wycombe, United KingdomReported employees: 1-10 | High Wycombe, United Kingdom | 1-10 | Exact match | 14 contacts → |
“We are highly motivated and committed to the field of immigration law.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Flynn Hodkinson LTDflynnhodkinson.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 13 contacts → |
“Flynn Hodkinson is a boutique US visa and nationality law practice based in the UK and Ireland.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Andrew Williams Solicitorsawsolicitors.co.ukHQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 12 contacts → |
“Andrew Williams Solicitors is a Leeds-based, SRA-regulated law firm with 34+ years of combined immigration law experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  SKY Solicitors LTDskysolicitors.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 11 contacts → |
“SKY SOLICITORS LTD is a company based out of 60 HIGH ROAD LEYTON, LONDON, United Kingdom.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Simman Solicitorssimmansolicitors.org.uk HQ: Croydon, United KingdomReported employees: 11-50 | Croydon, United Kingdom | 11-50 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Halliday Reeves Solicitorshallidayreeves.comHQ: Middlesbrough, United KingdomReported employees: 11-50 | Middlesbrough, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Specialist Immigration Solicitors, established 1994, having dealt with over applications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Optimus LAWoptimuslaw.co.ukHQ: Birmingham, United KingdomReported employees: 1-10 | Birmingham, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Optimus Law has a wide range of knowledge and experience when it comes to all aspects of Immigration Law and Asylum.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  SMK LAW Solicitorssmklaw.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 9 contacts → |
“SMK Law Solicitors specialise in immigration, asylum and human rights law.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Sultan Lloyd Solicitors Limitedsultanlloyd.comHQ: Small Heath, United KingdomReported employees: 11-50 | Small Heath, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Sultan Lloyd Solicitors Limited is a law practice company based out of 526 Coventry Rd, Small Heath, United Kingdom.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Charles Simmons Solicitorscsisolicitors.co.uk HQ: Essex, United KingdomReported employees: 11-50 | Essex, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Charles Simmons Immigration Solicitors is a leading law firm delivering high quality immigration advice” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Brill Immigrationbrillimmigration.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Brill Immigration is a US immigration law firm based in London’s Fitzrovia serving some of the world’s best creatives and entrepreneurs, multinational businesses, film and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | NNU Immigrationnnuimmigration.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“From offices in the US and the UK, NNU Immigration is a leading firm of US immigration attorneys, advising global businesses, entrepreneurs and high net-worth private clients…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  SH Solicitorsshsolicitors.comHQ: Birmingham, United KingdomReported employees: 1-10 | Birmingham, United Kingdom | 1-10 | Exact match | 6 contacts → |
“You can be assured that SH Solicitors will provide an efficient, professional and highly competitive service.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Aden & CO Solicitors LTDadensolicitors.co.uk HQ: Middlesex, United KingdomReported employees: 1-10 | Middlesex, United Kingdom | 1-10 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Osbourne Pinnerosbournepinner.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“With decades of experience and an exceptionally high success rate in family and immigration law, you can trust Osbourne Pinner with your case.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ortega-Medina & Associatesortega-medina.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Ortega-Medina & Associates is a firm of United States business immigration lawyers, with associated offices in London, San Francisco and Miami Beach.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Westbridge Business Immigrationwbbi.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“At the heart of WestBridge is a dedicated team of immigration and employment law experts with over 13 years of experience, offering tailored legal solutions to businesses of all…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Bukhari Chambersbukharichambers.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“At Bukhari Chambers we strive to provide holistic solutions that directly respond to our clients' individual needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 132 company matches
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O-1 visa law firms: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
132 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 132 companies.
How 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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 29, 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 ↗
O-1 visa law firms by metro
Questions about this company list
What does Exact match mean for o-1 visa 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 o-1 visa law firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 132 matching company records, 718 tracked contacts and 176 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 29, 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
O-1 visa law firms by geography
- O-1 visa law firms based in Toronto, Canada
- O-1 visa law firms based in London, United Kingdom
- O-1 visa law firms based in Atlanta, United States
- O-1 visa law firms based in Austin, United States
- O-1 visa law firms based in Boston, United States
- O-1 visa law firms based in Chicago, United States
- O-1 visa law firms based in Dallas, United States
- O-1 visa law firms based in Houston, United States
- O-1 visa law firms based in Los Angeles, United States
- O-1 visa law firms based in Miami, United States
- O-1 visa law firms based in New York, United States
- O-1 visa law firms based in Orlando, United States
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 o-1 visa law firms based in the United Kingdom. Snapshot: September 29, 2026. https://revenuebase.ai/companies/o-1-visa-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
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- New lists
- O-1 visa law firms based in Toronto, Canada
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- O-1 visa law firms based in Boston, United States
- O-1 visa law firms based in Chicago, United States
Company intelligence · public preview
Top 25 o-1 visa law firms based in the United Kingdom
RevenueBase records 132 matching company records for o-1 visa law firms based in the United Kingdom, with 718 tracked contacts and 176 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 29, 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 o-1 visa 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 | Immigration Advice Serviceiasservices.org.uk HQ: Oldham, United KingdomReported employees: 51-200 | Oldham, United Kingdom | 51-200 | Exact match | 126 contacts → |
“At Immigration Advice Service, we are more than just immigration solicitors; we are your dedicated partners in navigating the intricate world of immigration law.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | S. A. J Legalsaj.legal HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Public Law 2.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Samartin And Friendssamartinandfriends.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 22 contacts → |
“At Samartin & Friends, we specialise in helping people and businesses navigate the often complex process of U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mcglashan Mackay Solicitorsmcglashanmackay.com HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 19 contacts → |
“We are asylum and immigration law specialists based in Glasgow.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Batley LAWbatleylaw.co.uk HQ: Batley, United KingdomReported employees: 11-50 | Batley, United Kingdom | 11-50 | Exact match | 16 contacts → |
“We can help you, whether you’re wanting to apply for a UK visa, apply for an extension, or for asylum.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Nara Solicitorsnarasolicitors.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 16 contacts → |
“Welcome to NARA Solicitors, a modern law firm with a commitment to delivering exceptional legal services, operating under the regulation of the Solicitors Regulation Authority.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | M-R Solicitors LLPm-rsolicitors.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 16 contacts → |
“M-R Solicitors LLP is one of the top UK law firms providing services to large portfolio of clients in private and business sector from last 14 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Buckingham Legal Associatesbuckslegal.co.uk HQ: High Wycombe, United KingdomReported employees: 1-10 | High Wycombe, United Kingdom | 1-10 | Exact match | 14 contacts → |
“We are highly motivated and committed to the field of immigration law.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Flynn Hodkinson LTDflynnhodkinson.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 13 contacts → |
“Flynn Hodkinson is a boutique US visa and nationality law practice based in the UK and Ireland.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Andrew Williams Solicitorsawsolicitors.co.uk HQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 12 contacts → |
“Andrew Williams Solicitors is a Leeds-based, SRA-regulated law firm with 34+ years of combined immigration law experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | SKY Solicitors LTDskysolicitors.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 11 contacts → |
“SKY SOLICITORS LTD is a company based out of 60 HIGH ROAD LEYTON, LONDON, United Kingdom.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Simman Solicitorssimmansolicitors.org.uk HQ: Croydon, United KingdomReported employees: 11-50 | Croydon, United Kingdom | 11-50 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Halliday Reeves Solicitorshallidayreeves.com HQ: Middlesbrough, United KingdomReported employees: 11-50 | Middlesbrough, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Specialist Immigration Solicitors, established 1994, having dealt with over applications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Optimus LAWoptimuslaw.co.uk HQ: Birmingham, United KingdomReported employees: 1-10 | Birmingham, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Optimus Law has a wide range of knowledge and experience when it comes to all aspects of Immigration Law and Asylum.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | SMK LAW Solicitorssmklaw.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 9 contacts → |
“SMK Law Solicitors specialise in immigration, asylum and human rights law.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Sultan Lloyd Solicitors Limitedsultanlloyd.com HQ: Small Heath, United KingdomReported employees: 11-50 | Small Heath, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Sultan Lloyd Solicitors Limited is a law practice company based out of 526 Coventry Rd, Small Heath, United Kingdom.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Charles Simmons Solicitorscsisolicitors.co.uk HQ: Essex, United KingdomReported employees: 11-50 | Essex, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Charles Simmons Immigration Solicitors is a leading law firm delivering high quality immigration advice” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Brill Immigrationbrillimmigration.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Brill Immigration is a US immigration law firm based in London’s Fitzrovia serving some of the world’s best creatives and entrepreneurs, multinational businesses, film and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | NNU Immigrationnnuimmigration.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“From offices in the US and the UK, NNU Immigration is a leading firm of US immigration attorneys, advising global businesses, entrepreneurs and high net-worth private clients…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | SH Solicitorsshsolicitors.com HQ: Birmingham, United KingdomReported employees: 1-10 | Birmingham, United Kingdom | 1-10 | Exact match | 6 contacts → |
“You can be assured that SH Solicitors will provide an efficient, professional and highly competitive service.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Aden & CO Solicitors LTDadensolicitors.co.uk HQ: Middlesex, United KingdomReported employees: 1-10 | Middlesex, United Kingdom | 1-10 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Osbourne Pinnerosbournepinner.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“With decades of experience and an exceptionally high success rate in family and immigration law, you can trust Osbourne Pinner with your case.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ortega-Medina & Associatesortega-medina.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Ortega-Medina & Associates is a firm of United States business immigration lawyers, with associated offices in London, San Francisco and Miami Beach.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Westbridge Business Immigrationwbbi.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“At the heart of WestBridge is a dedicated team of immigration and employment law experts with over 13 years of experience, offering tailored legal solutions to businesses of all…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Bukhari Chambersbukharichambers.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“At Bukhari Chambers we strive to provide holistic solutions that directly respond to our clients' individual needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 132 company matches
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O-1 visa law firms: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
132 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 132 companies.
How 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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 29, 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 ↗
O-1 visa law firms by metro
Questions about this company list
What does Exact match mean for o-1 visa 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 o-1 visa law firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 132 matching company records, 718 tracked contacts and 176 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 29, 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 o-1 visa law firms based in the United Kingdom. Snapshot: September 29, 2026. https://revenuebase.ai/companies/o-1-visa-law-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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