Company lists · Data refreshed September 2026

Top 25 Citizenship law firms based in London, United Kingdom

Name: Citizenship law firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 301 companies tracked

RevenueBase identified 301 citizenship law firms headquartered in London, United Kingdom as of September 2026 and tracks 2,431 professional contacts across them, including 932 with verified work emails and 117 with mobile numbers. London is the largest hub.

This list covers citizenship law firms headquartered in London, 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 8, 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 8, 2026 86% judged on-target in blind review

301Companies

2,431Contacts tracked

932Verified emails

117Mobile numbers

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The 25 largest citizenship law firms based in London, United Kingdom

Ranked by team size

Top 25 of 301 citizenship law firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to citizenship law firms: 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	Global Migrate	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	84 contacts →
	Indirect 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 8, 2026
2	Gherson LLP	Partial evidence	London, United KingdomHQ checked Sep 8, 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 8, 2026
3	Sterling LAW	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	73 contacts →
	Partial evidence “Sterling Law Group is based in London, United Kingdom.” Source: RevenueBase Database · checked Sep 8, 2026
4	Chisty LAW Chambers	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	70 contacts →
	Partial evidence “With Over 26 Years Of Experience in Global Immigration Law.” Source: RevenueBase Database · checked Sep 8, 2026
5	Laura Devine Immigration	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	63 contacts →
	Indirect 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 8, 2026
6	Magrath Sheldrick LLP	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	62 contacts →
	Indirect 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 8, 2026
7	A Y & J Solicitors	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	30 contacts →
	Indirect 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 8, 2026
8	Constantine LAW	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	25 contacts →
	Indirect evidence “We provide Employment and Regulatory Solutions at Work.” Source: RevenueBase Database · checked Sep 8, 2026
9	S. A. J Legal	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	24 contacts →
	Partial evidence “Public Law 2.” Source: RevenueBase Database · checked Sep 8, 2026
10	OTS Solicitors	Partial evidence	London, United KingdomHQ checked Sep 8, 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 8, 2026
11	Samartin And Friends	Indirect evidence	London, United KingdomHQ checked Sep 8, 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 8, 2026
12	Wesley Gryk Solicitors LLP	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	19 contacts →
	Partial evidence “We are specialists in UK immigration and nationality law, and we are rated as leaders in this area of law by both The Legal 500 & Chambers and Partners.” Source: RevenueBase Database · checked Sep 8, 2026
13	Marie DE Louise Solicitors - London, UK	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	19 contacts →
	Indirect evidence “Marie De Louise Solicitors is a reputable legal practice based in London, committed to delivering high-quality legal services with integrity and professionalism.” Source: RevenueBase Database · checked Sep 8, 2026
14	Vanessa Ganguin Immigration LAW	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	1-10	16 contacts →
	Partial evidence “Leading UK immigration firm Vanessa Ganguin Immigration Law advises both businesses and individuals on swift affordable UK visa solutions, always with a friendly approach.” Source: RevenueBase Database · checked Sep 8, 2026
15	Cranbrook Legal	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	16 contacts →
	Partial evidence “We are a dynamic and enthusiastic UK immigration law firm who specialise in all business and personal immigration matter.” Source: RevenueBase Database · checked Sep 8, 2026
16	Hudson Mckenzie Global Immigration	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	16 contacts →
	Indirect evidence “Hudson McKenzie’s Business Immigration Group implements comprehensive immigration solutions for corporate and government clients worldwide.” Source: RevenueBase Database · checked Sep 8, 2026
17	Nara Solicitors	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	16 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 8, 2026
18	M-R Solicitors LLP	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	16 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 8, 2026
19	Raklaw Solicitors	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	16 contacts →
	Partial evidence “RakLAW Solicitors is a full-service law firm based in London, United Kingdom.” Source: RevenueBase Database · checked Sep 8, 2026
20	Markand & CO Solicitors LLP	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	15 contacts →
	Partial evidence “At Markand & Co Solicitors LLP, we make law simple.” Source: RevenueBase Database · checked Sep 8, 2026
21	LEX Legal	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	1-10	15 contacts →
	Indirect evidence “Lex Legal Limited is a premier immigration consultancy based in London, dedicated to guarding your path to new beginnings in the UK.” Source: RevenueBase Database · checked Sep 8, 2026
22	Flynn Hodkinson LTD	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	1-10	13 contacts →
	Partial evidence “Flynn Hodkinson is a boutique US visa and nationality law practice based in the UK and Ireland.” Source: RevenueBase Database · checked Sep 8, 2026
23	Mashoura For Immigration	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	12 contacts →
	Partial evidence “Mashoura is a leading UK immigration law firm, exclusively serving clients from the Middle East.” Source: RevenueBase Database · checked Sep 8, 2026
24	Gulbenkian Andonian Solicitors	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	11 contacts →
	Indirect evidence “Recommended by Legal 500 as Top Tier within the UK, our team of experienced lawyers will help you as we have helped thousands of others in London since 1985.” Source: RevenueBase Database · checked Sep 8, 2026
25	Garth Coates Solicitors	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	11 contacts →
	Strong evidence “Garth Coates Solicitors is a leading law firm specialising in immigration, nationality, citizenship by investment and human rights law, as well as European Union legislation.” Source: RevenueBase Database · checked Sep 8, 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: citizenship law firms. 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 citizenship law firms.
Partial evidence: Its own public description names part of citizenship law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name citizenship law firms. 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 301 citizenship law firms based in London, United Kingdom

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Citizenship law firms based in London, United Kingdom at a glance

As of Sep 8, 2026

38.3%Verified-email coverage

4.8%Mobile-number coverage

8.1Average contacts per company

1-10Median size (employees)

83.4%Largest-city concentration · London

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

206

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

8490–30

8031–60

161–90

090–180

2180+

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 citizenship law firms, 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 London, United Kingdom whose own description of what they do matches “citizenship law firms”. 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 citizenship law firms), 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 citizenship law firms, and records with no verified work email. Companies headquartered outside London 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, 932 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 8, 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.

Citizenship law firms by metro in the United Kingdom

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 citizenship law firms, 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 citizenship law firms are there based in London, United Kingdom?

RevenueBase identified 301 citizenship law firms headquartered in London, 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?

Global Migrate, headquartered in London, tops this list with the largest team on record.

Which city has the most citizenship law firms?

London leads with 251 headquartered companies, followed by Birmingham (26) and Manchester (25).

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 932 verified decision-maker contacts tracked across these 301 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 8, 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.