Company lists · Data refreshed September 2026
Top 25 H1b visa law firms based in the United Kingdom
RevenueBase identified 398 h1b visa law firms headquartered in the United Kingdom as of September 2026 and tracks 2,503 professional contacts across them, including 598 with verified work emails and 99 with mobile numbers. London is the largest hub.
This list covers h1b visa law firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 h1b visa law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 126 | ||||
“At Immigration Advice Service, we are more than just immigration solicitors; we are your dedicated partners in navigating the intricate world of immigration law.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 30 | ||||
“At A Y&J Solicitors, our mission is to help individuals and businesses navigate complex UK immigration processes with trust, care, and excellence.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 30 | ||||
“We are Paragon Law.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 27 | ||||
“Legend Solicitors is a legal firm run by Mr Aravind Sreevalsalan based in London.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 24 | ||||
“Public Law 2.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 22 | ||||
“We are a leading law firm specialising in Corporate Immigration, passionately dedicated to guiding businesses through the intricate landscape of UK immigration laws.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 21 | ||||
“OTB Legal is a nationally recognised specialist UK immigration law firm, known for delivering expert legal advice with a refreshingly modern and client-focused approach.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 | ||||
“Aston Brooke Solicitors is a specialist law firm providing end-to-end legal support for care providers, healthcare businesses, and employers across the UK.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 20 | ||||
“At Samartin & Friends, we specialise in helping people and businesses navigate the often complex process of U.S.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 | ||||
“Trent Law (Solicitors) is an idealistic and highly innovative Law Practice.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 | ||||
“Kilgannon & Partners is an innovative, values-led law firm specialising in employment law and immigration law.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 | ||||
“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.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 | ||||
“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.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 | ||||
“RakLAW Solicitors is a full-service law firm based in London, United Kingdom.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 | ||||
“SKY SOLICITORS LTD is a company based out of 60 HIGH ROAD LEYTON, LONDON, United Kingdom.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | UK VisasPartial evidence | 9 | |||
“UK Visas is a reputable visa and immigration advisor, specialising in services for both businesses and individuals.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 | ||||
“Shawstone Associate Solicitors is a leading Immigration Law firm, specialising in all areas of Immigration and Business Immigration.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 | ||||
“Niche Law firm in London - N15 4AJ” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 | ||||
“Dedicated, professional and hard-working, the Goldsmith Chambers Immigration and Public Law Team comprises renowned specialists in their fields.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 | ||||
“Sultan Lloyd Solicitors Limited is a law practice company based out of 526 Coventry Rd, Small Heath, United Kingdom.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | Charles Simmons SolicitorsPartial evidence | 7 | |||
“Charles Simmons Immigration Solicitors is a leading law firm delivering high quality immigration advice” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 | ||||
“At Ata & Co.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“Edmans & Co is a leading independent firm of solicitors and immigration lawyers based in central London.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 | ||||
“Hawflein Solutions is a IAA regulated Immigration Law Firm London, United Kingdom.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | Solomon SolicitorsPartial evidence | 5 | |||
“Solomon Solicitors is a trusted, client-focused law firm based in Luton, proudly serving clients across Bedfordshire, Hertfordshire, London and beyond.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 398 h1b visa law firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 598 reachable decision-makers.
Free signup · no credit card
H1b visa law firms based in the United Kingdom at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among h1b visa law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “h1b visa law firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among h1b visa law firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 598 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
H1b visa law firms by metro
- H1b visa law firms in London191
Frequently asked
How many h1b visa law firms are there based in the United Kingdom?
RevenueBase identified 398 h1b visa law firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Immigration Advice Service, headquartered in Oldham, tops this list with the largest team on record.
Which city has the most h1b visa law firms?
London leads with 191 headquartered companies, followed by Birmingham (20) and Manchester (14).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 598 verified decision-maker contacts tracked across these 398 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.
Ready to reach these companies? Verified emails and direct dials for all 398 h1b visa law firms based in the United Kingdom. Start with a free account, no credit card.
Get the full listRelated lists
H1b visa law firms by geography
Browse the directory
Browse: Companies home · All United Kingdom lists · All H1b visa law firms lists · New lists
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.