Company lists · Data refreshed September 2026
Top 25 Maritime law firms based in the United Kingdom
RevenueBase identified 159 maritime law firms headquartered in the United Kingdom as of September 2026 and tracks 11,578 professional contacts across them, including 6,236 with verified work emails and 1,068 with mobile numbers. London is the largest hub.
This list covers maritime 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest maritime law firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,079 | ||||
“Clyde & Co is a leading global law firm, helping organisations successfully navigate risk and maximise opportunity in the sectors that underpin global trade and commercial…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,847 | ||||
“Every day we make a difference.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,406 | ||||
“HFW is a leading global law firm in the aerospace, commodities, construction, energy, insurance, and shipping sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 205 | ||||
“Originally founded in 1838 we have over 180 years’ experience providing specialist legal advice to the construction, engineering, infrastructure and insurance sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 158 | ||||
“Ince & Co is an international commercial law firm, with 13 offices worldwide, founded in 1870.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | Signature LitigationPartial evidence | 146 | |||
“Signature Litigation is a London-based law firm with offices in Paris, Gibraltar and Frankfurt, specialising in commercial litigation and arbitration.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 134 | ||||
“2024 marks 150 years since Andrew Marvell Jackson established the firm in 1874.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 78 | ||||
“Campbell Johnston Clark has become one of the pre-eminent international shipping law firms in the City.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 60 | ||||
“Preston Turnbull is a specialised shipping and marine insurance law firm, set up in October 2019 following a breakaway from an international firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 59 | ||||
“MFB is a specialist shipping law firm established in 1988.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 38 | ||||
“Mills & Co is a firm of English lawyers specialising in shipping and international trade matters” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 27 | ||||
“As a leading law firm in the Midlands, we take great pride in our quality of work, reputation of delivery and level of success.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 25 | ||||
“Whenever you face a challenging legal or commercial situation anywhere in the world, trust Stann to rise to it.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 25 | ||||
“Superyacht and Aviation Lawyers” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 | ||||
“Humphries Kerstetter LLP is a boutique law firm based in the United Kingdom specialising in complex and international commercial dispute resolution.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 24 | ||||
“Middleton Law is a new breed of law firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 | ||||
“Tatham & Co is a firm of specialist shipping, offshore, commercial, marine insurance, international trade and aviation lawyers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Zaiwalla & COIndirect evidence | 20 | |||
“Founded in 1982 by Senior Partner Sarosh Zaiwalla, Zaiwalla & Co is the first English solicitors firm in the one square mile financial district of the City of London started by a…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 | ||||
“At Mackinnons we offer professional, pragmatic, tailored solutions for our clients' needs, whether they are multinational corporations or individuals.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 19 | ||||
“WQW Limited, trading under the name Wysocki Quinn Woollam, is a boutique law firm whose entire practice is dedicated to servicing client needs by following 3 simple concepts which…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 18 | ||||
“We are a boutique firm of solicitors based in London.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 | ||||
“Callin Wild is a full service law firm situated in the Isle of Man and dealing with almost all aspects of legal work for local and international clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Hartland Shipping Services LimitedIndirect evidence | 17 | |||
“Hartland Shipping Services is an experienced, specialised, shipbroking and consulting team with offices in London, Shanghai and Singapore.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 | ||||
“Boulter and Company Solicitors was established in the 1990's in North London and Hertfordshire with a Nationwide client base to offer a fast, friendly and efficient service in all…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 16 | ||||
“We have accomplished great results for our clients despite many unique and complex cases.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 159 maritime law firms based in the United Kingdom
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Maritime law firms based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 maritime law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “maritime law firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among maritime 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 an evidence 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, 6,236 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 5, 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.
Maritime law firms by metro
- Maritime law firms in London78
Frequently asked
How many maritime law firms are there based in the United Kingdom?
RevenueBase identified 159 maritime 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?
Clyde & CO, headquartered in London, tops this list with the largest team on record.
Which city has the most maritime law firms?
London leads with 78 headquartered companies, followed by Manchester (4) and Aberdeen (3).
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 6,236 verified decision-maker contacts tracked across these 159 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 5, 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 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.