Company lists · Data refreshed September 2026

Top 25 Customs and tariff law firms based in the United Kingdom

RevenueBase identified 80 company matches for customs and tariff law firms associated with the United Kingdom as of September 2026 and tracks 397 professional contacts across them, including 197 with verified work emails. London is the largest hub.

This list covers company matches for customs and tariff law firms 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 28, 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 28, 2026 How this list was built
80Companies
397Contacts tracked
197Verified emails
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The 25 largest customs and tariff law firms based in the United Kingdom

Ranked by team size
Top 25 of 80 company matches for customs and tariff law firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchLondon, United KingdomHQ recorded Sep 28, 202651-20078 contacts →

Exact match

“Campbell Johnston Clark has become one of the pre-eminent international shipping law firms in the City.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 28, 202611-5038 contacts →

Exact match

“Mills & Co is a firm of English lawyers specialising in shipping and international trade matters”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5031 contacts →

Exact match

“We are the unrivalled experts in accurate customs classification.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchWorcester, United KingdomHQ recorded Sep 28, 202611-5017 contacts →

Exact match

“Technology-led customs consultancy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20013 contacts →

Exact match

“Thomas Cooper LLP is an international law firm founded in 1825 and has offices located in London, Madrid, Paris, Piraeus, São Paulo and Singapore.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchArmagh, United KingdomHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Your Customs Clearance Partner and the one-stop shop you can rely on.#customs #import #export #accountancy #dieselrebate”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“BKR is a London based consultancy firm, with roots in customs brokerage and international trade.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchOldmeldrum, United KingdomHQ recorded Sep 28, 20261-108 contacts →

Exact match

“Here at Bethan, we’re proud to be passionate about all things customs.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchChester, United KingdomHQ recorded Sep 28, 20261-107 contacts →

Exact match

“CustomsPlus® is a global customs and trade compliance consultancy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-107 contacts →

Exact match

“Customs legislation changes frequently and the customs authorities’ application of customs legislation is subject to individual interpretation.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-107 contacts →

Exact match

“Kompleksowa obsługa księgowo- celna w Wielkiej Brytanii- księgowość firm w Wielkiej Brytanii - Bookkeeping i Accounting - rejestracja i obsługa deklaracji VAT dla podmiotów…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchKent, United KingdomHQ recorded Sep 28, 20261-106 contacts →

Exact match

“We at Global Custom Clearance are a company that offer specialist services in Road, Sea and Air freight Custom clearances on a 24/7 basis.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-105 contacts →

Exact match

“A firm of solicitors giving specialist advice on international transportation of cargo.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchSevington, United KingdomHQ recorded Sep 28, 2026201-5005 contacts →

Exact match

“Simplified Customs Solutions for Your Business At Bunasta, we focus on making customs processes effortless for businesses in the UK and beyond.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchAshford, United KingdomHQ recorded Sep 28, 202611-505 contacts →

Exact match

“We proudly stand as a seasoned customs brokerage firm with two decades of unwavering commitment to excellence.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchReading, United KingdomHQ recorded Sep 28, 20261-105 contacts →

Exact match

“UK-based customs advisory, brokerage and compliance specialist.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchDartford, United KingdomHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Expert customs is a customs agency aiding individual clients and companies with imports, exports, T1's and residence moves.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchManchester, United KingdomHQ recorded Sep 28, 202611-504 contacts →

Exact match

“Managing International Trade with the Customs Connect Approach, our customs consultants, provide expert advice to help manage and improve your customs duty and tax liabilities…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchNottingham, United KingdomHQ recorded Sep 28, 20261-104 contacts →

Exact match

“We are a customs clearance agency.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchGainsborough, United KingdomHQ recorded Sep 28, 20261-103 contacts →

Exact match

“My name is Rachel Stockton and I founded CIE Services after spending over 25+ years in the corporate sector.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchHinckley, United KingdomHQ recorded Sep 28, 20261-103 contacts →

Exact match

“International Trade Consultancy, Customs Advice and Business Support”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Alinea Customs is an independent UK customs brokerage and regulated tax agent, providing specialist customs, indirect tax, and international trade compliance services to…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-102 contacts →

Exact match

“TKTL solicitors is dedicated to assisting our clients in the transport, shipping, cargo & transit insurance, logistics, forwarding, warehousing & storage and associated businesses.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchCity Of London, United KingdomHQ recorded Sep 28, 202611-502 contacts →

Exact match

“We are an international shipping and trade law firm, regulated by the Solicitors Regulation Authority, with offices in London, Dubai and Shanghai.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchNew Barnet, United KingdomHQ recorded Sep 28, 20261-102 contacts →

Exact match

“4 Eyes Ltd is your expert partner for customs and excise compliance in UK–EU trade.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 80 customs and tariff law firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 197 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customs and tariff law firms based in the United Kingdom at a glance

As of Sep 28, 2026
49.6%Verified-email coverage
5.0Average contacts per company
1-10Median size (employees)
30.0%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
61
11-50
14
51-200
3
201-500
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 80 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 “customs and tariff law firms” 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 197 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 28, 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 “customs and tariff law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customs and tariff law firms are there based in the United Kingdom?

RevenueBase identified 80 company matches for customs and tariff law firms 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?

Campbell Johnston Clark CJC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most customs and tariff law firms?

London leads with 24 company records, followed by Dover (3) and Ashford (2).

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 197 professional contacts with verified work emails tracked across these 80 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 80 customs and tariff law firms based in the United Kingdom. Start with a free account, no credit card.

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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.