Company lists · Data refreshed September 2026
Top 25 Criminal immigration law firms based in the United Kingdom
RevenueBase identified 870 criminal immigration law firms headquartered in the United Kingdom as of September 2026 and tracks 5,933 professional contacts across them, including 2,256 with verified work emails. London is the largest hub.
This list covers criminal immigration 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 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.
The 25 largest criminal immigration law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 128 contacts → | ||||
Partial evidence “Hay & Kilner | Solicitors in Newcastle & Wallsend | Specialising in all areas of business and family law.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 126 contacts → | ||||
Strong 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 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 108 contacts → | ||||
Strong evidence “The Johnson Partnership specialises in criminal and business defence law.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 101 contacts → | ||||
Indirect evidence “Oracle Solicitors is an experienced team of creative legal problem-solvers, based in London, Belfast, Naples, Frankfurt and Addis Ababa.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 88 contacts → | ||||
Indirect evidence “Biscoes, your local lawyers, are located in offices close to you.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 73 contacts → | ||||
Partial evidence “Sterling Law Group is based in London, United Kingdom.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 73 contacts → | ||||
Strong 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 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 70 contacts → | ||||
Strong evidence “With Over 26 Years Of Experience in Global Immigration Law.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 55 contacts → | ||||
Indirect evidence “Solicitors firm with main office in Oxford.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 54 contacts → | ||||
Partial evidence “Howells Solicitors is one of the most admired law firms in the north of England.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 49 contacts → | ||||
Indirect evidence “Freemans Solicitors was established in 1995 by Howard Freeman.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 44 contacts → | ||||
Strong evidence “Powell Spencer is one of the largest Legal Aid practices in North West London, specialising in Criminal Defence, Personal Injury and Social Law.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 43 contacts → | ||||
Indirect evidence “Stuart Miller Solicitors have been able to exceed their goal of gaining a high reputation among others in the field, an achievement made possible by the high calibre of employees…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 41 contacts → | ||||
Partial evidence “Olliers Solicitors is firmly established as one of the UK's leading criminal defence specialists.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 39 contacts → | ||||
Indirect evidence “For over fifty years, Broudie Jackson Canter have been helping individuals and communities in and around Liverpool and Manchester.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Partial evidence “With a team of accomplished legal experts recognised by the Legal 500, Thomson Webb & Corfield is a premier independent law firm and a major player in the Cambridge market, as…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 37 contacts → | ||||
Partial evidence “ABV Solicitors: Leading Criminal Defence lawyers; Specialists in Fraud, Serious Crime and High Profile Cases across the nation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 35 contacts → | ||||
Strong evidence “Mary Monson Solicitors is a law firm representing people and organisations in criminal law, fraud defence and motoring offences.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 35 contacts → | ||||
Partial evidence “We are MK Law, a team of legal professionals dedicated to providing the best representation in today's justice system.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 34 contacts → | ||||
Indirect evidence “At IMD we specialise in helping individuals and businesses navigate complex legal issues with expertise, clarity, and empathy.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 contacts → | ||||
Partial evidence “We are Paragon Law.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Strong evidence “Birnberg Peirce Solicitors is a long-established legal practice upholding civil rights and liberties with teams practicing Criminal, Civil, Immigration law and more.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Indirect evidence “At Greens Solicitors, you can always expect a friendly, professional, and affordable service.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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: criminal immigration 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 criminal immigration law firms.
- Partial evidence
- Its own public description names part of criminal immigration law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name criminal immigration 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 870 criminal immigration law firms based in the United Kingdom
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Criminal immigration law firms based in the United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
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 870 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 criminal immigration 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 the United Kingdom whose own description of what they do matches “criminal immigration 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 criminal immigration 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 criminal immigration 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 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, 2,256 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 27, 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.
Criminal immigration law firms by metro
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 criminal immigration 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 criminal immigration law firms are there based in the United Kingdom?
RevenueBase identified 870 criminal immigration 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?
HAY & Kilner, headquartered in United Kingdom, tops this list with the largest team on record.
Which city has the most criminal immigration law firms?
London leads with 361 headquartered companies, followed by Manchester (44) and Birmingham (40).
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 2,256 verified decision-maker contacts tracked across these 870 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 27, 2026.
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Criminal immigration law firms by geography
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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.
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