Company lists · Data refreshed September 2026
Top 25 Protection and indemnity law firms based in London, United Kingdom
RevenueBase identified 101 protection and indemnity law firms headquartered in London, United Kingdom as of September 2026 and tracks 10,042 professional contacts across them, including 5,584 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers protection and indemnity 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 29, 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 protection and indemnity law firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,079 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,719 contacts → | ||||
Indirect evidence “DAC Beachcroft is a leading international legal business with offices across Europe, Latin America, North America and Asia Pacific.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 449 contacts → | ||||
Indirect evidence “At SSY, we believe that experience matters.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 205 contacts → | ||||
Indirect evidence “Originally founded in 1838 we have over 180 years’ experience providing specialist legal advice to the construction, engineering, infrastructure and insurance sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 78 contacts → | ||||
Partial evidence “Campbell Johnston Clark has become one of the pre-eminent international shipping law firms in the City.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 71 contacts → | ||||
Indirect evidence “London P&I is a leading, globally connected, mutual marine insurer our members can depend on.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 65 contacts → | ||||
Indirect evidence “In a world of conglomerates, corporations and umbrella organisations, Paragon shines through as a truly specialist insurance broker.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 60 contacts → | ||||
Partial evidence “Preston Turnbull is a specialised shipping and marine insurance law firm, set up in October 2019 following a breakaway from an international firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 contacts → | ||||
Partial evidence “MFB is a specialist shipping law firm established in 1988.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 contacts → | ||||
Partial evidence “We are a dynamic law firm with offices in the City of London, Bristol and Dublin.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “Founded in 1987, Lochain Patrick, a division of Burns & Wilcox Global solutions, is a highly respected, expert and experienced leading firm of insurance brokers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 34 contacts → | ||||
Partial evidence “A Lloyd's broker, specialising in Professional Indemnity Insurance, based in The City.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 33 contacts → | ||||
Partial evidence “Legal & Contingency Limited, a coverholder of Lloyd's and one of the leading providers of legal indemnity insurance policies in the UK.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 32 contacts → | ||||
Indirect evidence “A leading provider of independent marine claims advice and adjusting services, handling complex hull and machinery cases, shipyard losses, loss of hire claims and the largest…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “Whenever you face a challenging legal or commercial situation anywhere in the world, trust Stann to rise to it.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Indirect evidence “Navium started trading in May 2021 and was formed as a result of a partnership between Clive Washbourn (CEO), Pine Walk Capital Limited, and Fidelis Insurance Holdings Limited.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 contacts → | ||||
Indirect evidence “Tatham & Co is a firm of specialist shipping, offshore, commercial, marine insurance, international trade and aviation lawyers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 contacts → | ||||
Indirect evidence “We are a specialist marine insurance underwriting agency located in the City of London, and market leaders for marine insurance products which provide innovative, bespoke and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Indirect evidence “Channing Lucas and Partners Limited (“CLP”), founded in 2007, is an independent marine insurance broker, working with clients throughout the UK and internationally.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 18 contacts → | ||||
Indirect evidence “We are a boutique firm of solicitors based in London.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 18 contacts → | ||||
Strong evidence “The International Group of P&I Clubs (the IG) is an unincorporated association of the 12 principal underwriting Protection & Indemnity (P&I) Associations (Clubs) and their…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Indirect evidence “Roanoke International Brokers Limited (RIBL) is a vibrant broker situated within close proximity of Lloyd’s of London.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 contacts → | ||||
Indirect evidence “Price Forbes Marine was formed by bringing together a group of professionals who share the same values and ambitions in the shipping insurance industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Partial evidence “Nautica Law was previously known as Winter Scott, a practice established in 2004 specialising in all types of shipping dispute.” Source: RevenueBase Database · checked Sep 29, 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: protection and indemnity 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 protection and indemnity law firms.
- Partial evidence
- Its own public description names part of protection and indemnity law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name protection and indemnity 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 101 protection and indemnity law firms based in London, United Kingdom
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Protection and indemnity law firms based in London, United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 101 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 protection and indemnity 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 “protection and indemnity 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 protection and indemnity 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 protection and indemnity 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, 5,584 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 29, 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.
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 protection and indemnity 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 protection and indemnity law firms are there based in London, United Kingdom?
RevenueBase identified 101 protection and indemnity 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?
Clyde & CO, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most protection and indemnity law firms?
London leads the United Kingdom with 101 headquartered companies, followed by Bristol (7) and Manchester (7).
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 5,584 verified decision-maker contacts tracked across these 101 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 29, 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.
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