Company lists · Data refreshed September 2026

Top 25 Immigration legal services based in the United Kingdom

RevenueBase identified 664 company matches for immigration legal services associated with the United Kingdom as of September 2026 and tracks 4,119 professional contacts across them, including 1,436 with verified work emails. London is the largest hub.

This list covers company matches for immigration legal services 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 20, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
664Companies
4,119Contacts tracked
1,436Verified emails
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The 25 largest immigration legal services based in the United Kingdom

Ranked by team size
Top 25 of 664 company matches for immigration legal services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOldham, United KingdomHQ recorded Sep 20, 202651-200126 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 20, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20084 contacts →

Exact match

“As one of the most successful immigration consultancies in the world, Global-Migrate has helped individuals, families, and corporate clients with their visa applications for many…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20073 contacts →

Exact match

“Sterling Law Group is based in London, United Kingdom.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20073 contacts →

Exact match

“UK’S leading law firm in international protection, asylum, extradition & Interpol, complex immigration, financial crime, litigation and cross-border disputes.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-50070 contacts →

Exact match

“With Over 26 Years Of Experience in Global Immigration Law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20063 contacts →

Exact match

“UK and US Immigration lawyers with offices in London and New York, regarded as a “stellar” boutique immigration firm with a powerful transatlantic capability.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20062 contacts →

Exact match

“Our specialist immigration solicitors and employment solicitors based in central London focus on supporting the needs of businesses and individuals, both nationally and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20048 contacts →

Exact match

“At Smith Stone Walters, we deliver a wide range of services, including work and residence permit authorisation, in more than 100 countries worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5037 contacts →

Exact match

“Breytenbachs Immigration Consultants Limited is a company specialising in the field of UK and South African Immigration.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20034 contacts →

Exact match

“Britain Solicitors is a law practice company based out of the United Kingdom.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchNottingham, United KingdomHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“We are Paragon Law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“At A Y&J Solicitors, our mission is to help individuals and businesses navigate complex UK immigration processes with trust, care, and excellence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“WorkPermitCloud Limited is a business immigration advisory firm based in London, UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5029 contacts →

Exact match

“Career Craft Consultants is an award winning firm and UK Immigration Law Firm specialising in all Immigration work.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchCardiff, United KingdomHQ recorded Sep 20, 20261-1028 contacts →

Exact match

“Welcome to Newfields Law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Legend Solicitors is a legal firm run by Mr Aravind Sreevalsalan based in London.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“The Joint Council for the Welfare of Immigrants (JCWI) is an independent national charity which exists to campaign for justice in immigration, nationality and refugee law and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“Public Law 2.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchNottingham, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchHarrow, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“We are a leading law firm specialising in Corporate Immigration, passionately dedicated to guiding businesses through the intricate landscape of UK immigration laws.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5022 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 20, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“The firm Established in 2014, OTS Solicitors has rapidly become recognised as one of the UK's leading immigration and family law firms.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchHarrow, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“Aston Brooke Solicitors is a specialist law firm providing end-to-end legal support for care providers, healthcare businesses, and employers across the UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-1022 contacts →

Exact match

“The Visa Office, UK Immigration Consultants, specializes in Business Immigration.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchNottingham, United KingdomHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Trent Law (Solicitors) is an idealistic and highly innovative Law Practice.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 664 immigration legal services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,436 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Immigration legal services based in the United Kingdom at a glance

As of Sep 20, 2026
34.9%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
50.3%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
481
11-50
145
51-200
22
201-500
6
501-1,000
2
1,001-5,000
2

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 664 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 “immigration legal services” 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 1,436 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 20, 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 “immigration legal services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many immigration legal services are there based in the United Kingdom?

RevenueBase identified 664 company matches for immigration legal services 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 immigration legal services?

London leads with 334 company records, followed by Birmingham (32) and Manchester (24).

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 1,436 professional contacts with verified work emails tracked across these 664 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 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.