Company lists · Data verified August 2026

Top 25 Citizenship law firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 540 companies tracked

There are 540 citizenship law firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,418 professional contacts across them, including 771 with verified work emails and 131 with mobile numbers. London is the largest hub.

This list covers citizenship 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. Data current as of August 28, 2026.

540Companies

3,418Contacts tracked

771Verified emails

131Mobile numbers

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The 25 largest citizenship law firms based in the United Kingdom

Ranked by team size

Top 25 of 540 citizenship law firms based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Immigration Advice Service	Oldham	51-200	126	2
2	Sterling LAW	London	51-200	75	42
3	A Y & J Solicitors	London	11-50	30	21
4	Paragon LAW LTD	Nottingham	11-50	30	19
5	Legend Solicitors	East London	11-50	27	11
6	LA Vida	London	11-50	25	7
7	S. A. J Legal	London	11-50	24	2
8	OTB Legal	Nottingham	11-50	21	19
9	Samartin And Friends	London	11-50	20	14
10	Trent LAW Solicitors	Derby	11-50	20	13
11	Wesley Gryk Solicitors LLP	London	11-50	19	15
12	Latitude LAW	London	11-50	17	14
13	Kilgannon & Partners LLP	Godalming	11-50	17	7
14	MWG Solicitors LTD	Manchester	51-200	16	9
15	M-R Solicitors LLP	London	11-50	16	5
16	Clearwater Solicitors	Burnley	11-50	14	5
17	Garth Coates Solicitors	London	11-50	11	5
18	SKY Solicitors LTD	London	201-500	11	4
19	Tann LAW Solicitors	Coventry	11-50	9	6
20	Shawstone Associates LTD	Twickenham	11-50	9	4
21	Appleman Legal	London	11-50	8	8
22	Goldsmith Chambers Immigration And Public LAW	London	201-500	8	7
23	Paul John & CO Solicitors	n/a	51-200	8	1
24	Adukus Solicitors	London	11-50	8	1
25	Sultan Lloyd Solicitors Limited	n/a	11-50	7	4

Showing 25 of 540 citizenship law firms based in the United Kingdom

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Citizenship law firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 251 HQs

131Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

368

11-50

136

51-200

201-500

501-1,000

1,001-5,000

Citizenship law firms by metro

Metro	Companies
Citizenship law firms in London	251
Citizenship law firms in Birmingham	26
Citizenship law firms in Manchester	25
Citizenship law firms in Ilford	13
Citizenship law firms in Harrow	10
Citizenship law firms in Glasgow	9
Citizenship law firms in Nottingham	8

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “citizenship law firms”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 3 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many citizenship law firms are there based in the United Kingdom?

There are 540 citizenship law firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

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 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 771 verified decision-maker contacts tracked across these 540 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Citizenship law firms by geography

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.