Company lists · Data refreshed September 2026

Top 25 Immigration legal services based in the United Kingdom

Name: Immigration legal services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 664 companies tracked

RevenueBase identified 664 immigration legal services headquartered in 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 immigration legal services 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

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 immigration legal services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to immigration legal services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Immigration Advice Service	Partial evidence	Oldham, United KingdomHQ checked Sep 20, 2026	51-200	126 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 20, 2026
2	Global Migrate	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	84 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
3	Sterling LAW	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	73 contacts →
	Indirect evidence “Sterling Law Group is based in London, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
4	Gherson LLP	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	73 contacts →
	Partial evidence “UK’S leading law firm in international protection, asylum, extradition & Interpol, complex immigration, financial crime, litigation and cross-border disputes.” Source: RevenueBase Database · checked Sep 20, 2026
5	Chisty LAW Chambers	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	70 contacts →
	Partial evidence “With Over 26 Years Of Experience in Global Immigration Law.” Source: RevenueBase Database · checked Sep 20, 2026
6	Laura Devine Immigration	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	63 contacts →
	Partial evidence “UK and US Immigration lawyers with offices in London and New York, regarded as a “stellar” boutique immigration firm with a powerful transatlantic capability.” Source: RevenueBase Database · checked Sep 20, 2026
7	Magrath Sheldrick LLP	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	62 contacts →
	Partial evidence “Our specialist immigration solicitors and employment solicitors based in central London focus on supporting the needs of businesses and individuals, both nationally and…” Source: RevenueBase Database · checked Sep 20, 2026
8	Smith Stone Walters LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	48 contacts →
	Indirect evidence “At Smith Stone Walters, we deliver a wide range of services, including work and residence permit authorisation, in more than 100 countries worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
9	Breytenbachs Immigration Consultants LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	37 contacts →
	Partial evidence “Breytenbachs Immigration Consultants Limited is a company specialising in the field of UK and South African Immigration.” Source: RevenueBase Database · checked Sep 20, 2026
10	Briton Solicitors	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	34 contacts →
	Indirect evidence “Britain Solicitors is a law practice company based out of the United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
11	Paragon LAW LTD	Indirect evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	11-50	31 contacts →
	Indirect evidence “We are Paragon Law.” Source: RevenueBase Database · checked Sep 20, 2026
12	A Y & J Solicitors	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “At A Y&J Solicitors, our mission is to help individuals and businesses navigate complex UK immigration processes with trust, care, and excellence.” Source: RevenueBase Database · checked Sep 20, 2026
13	Workpermitcloud LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “WorkPermitCloud Limited is a business immigration advisory firm based in London, UK.” Source: RevenueBase Database · checked Sep 20, 2026
14	Career Craft Consultants	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “Career Craft Consultants is an award winning firm and UK Immigration Law Firm specialising in all Immigration work.” Source: RevenueBase Database · checked Sep 20, 2026
15	Newfields LAW	Indirect evidence	Cardiff, United KingdomHQ checked Sep 20, 2026	1-10	28 contacts →
	Indirect evidence “Welcome to Newfields Law.” Source: RevenueBase Database · checked Sep 20, 2026
16	Legend Solicitors	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	27 contacts →
	Partial evidence “Legend Solicitors is a legal firm run by Mr Aravind Sreevalsalan based in London.” Source: RevenueBase Database · checked Sep 20, 2026
17	Joint Council For The Welfare Of Immigrants	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
18	S. A. J Legal	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Public Law 2.” Source: RevenueBase Database · checked Sep 20, 2026
19	OTB Legal	Strong evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 20, 2026
20	City Legal Solicitors	Partial evidence	Harrow, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “We are a leading law firm specialising in Corporate Immigration, passionately dedicated to guiding businesses through the intricate landscape of UK immigration laws.” Source: RevenueBase Database · checked Sep 20, 2026
21	Samartin And Friends	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “At Samartin & Friends, we specialise in helping people and businesses navigate the often complex process of U.S.” Source: RevenueBase Database · checked Sep 20, 2026
22	OTS Solicitors	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “The firm Established in 2014, OTS Solicitors has rapidly become recognised as one of the UK's leading immigration and family law firms.” Source: RevenueBase Database · checked Sep 20, 2026
23	Aston Brooke Solicitors	Partial evidence	Harrow, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 20, 2026
24	The Visa Office	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	22 contacts →
	Partial evidence “The Visa Office, UK Immigration Consultants, specializes in Business Immigration.” Source: RevenueBase Database · checked Sep 20, 2026
25	Trent LAW Solicitors	Indirect evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Trent Law (Solicitors) is an idealistic and highly innovative Law Practice.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: immigration legal services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names immigration legal services.
Partial evidence: Its own public description names part of immigration legal services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name immigration legal services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

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

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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

201-500

501-1,000

1,001-5,000

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among immigration legal services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “immigration legal services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names immigration legal services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among immigration legal services, 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 its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,436 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 20, 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.

Immigration legal services by metro

Immigration legal services in London334
Immigration legal services in Birmingham32

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names immigration legal services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 664 immigration legal services 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 immigration legal services?

London leads with 334 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 1,436 verified decision-maker contacts tracked across these 664 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 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 Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.