Company lists · Data refreshed September 2026
Top 23 Maritime law firms based in Spain
RevenueBase identified 94 maritime law firms headquartered in Spain as of September 2026 and tracks 519 professional contacts across them, including 69 with verified work emails and 12 with mobile numbers. Madrid is the largest hub.
This list covers maritime law firms headquartered in Spain, 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 5, 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 23 largest maritime law firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 35 contacts → | ||||
Partial evidence “Despacho de Abogados/Law Firm Especialidad en Derecho Mercantil, Societario, Financiero y Mercado de Capitales, Concursal y Reestructuraciones, Asesoramiento y Planificación…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 29 contacts → | ||||
Indirect evidence “Blas de Lezo Abogados ofrece una solución adecuada a las necesidades de su negocio.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 25 contacts → | ||||
Partial evidence “Law firm of trial lawyers located in the financial center of Madrid whose reason for is excellence and quality in the provision of their services.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 21 contacts → | ||||
Strong evidence “San Simón & Duch provides legal advice on national and international matters in relation to maritime, transport, insurance, reinsurance and international trade Law.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 18 contacts → | ||||
Indirect evidence “ALBORS GALIANO PORTALES is a leading Firm in the Spanish Shipping, Transportation, Insurance and Reinsurance and Yachting practice areas.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 15 contacts → | ||||
Partial evidence “Marlin Blue is an international law firm that delivers legal services across our core sectors, including marine insurance, reinsurance, energy, international trade, and shipping.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 contacts → | ||||
Strong evidence “MEANAGREENMAURA has built a reputation for being a leader and an innovator in the field of maritime law, international trade, insurance and reinsurance.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 9 contacts → | ||||
Indirect evidence “Despacho pionero en España en el asesoramiento especializado en derecho de seguros, principalmente a tomadores y brókers.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 9 contacts → | ||||
Indirect evidence “RUIZ-GÁLVEZ fue fundado en 1928 por Don Fernando Ruiz-Gálvez López de Obregón, figura insigne del Derecho Marítimo español, que ocupó la Secretaría General de la Asociación…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8 contacts → | ||||
Strong evidence “Since 2015, AIYON Abogados SLP has been a leading firm specializing in Maritime Law, Transport Law, Trade law, and insurance law.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 contacts → | ||||
Indirect evidence “En 1994, creímos que podíamos ofrecer un servicio profesional y exclusivo en el ámbito del derecho marítimo, contamos con grandes profesionales especializados en el sector, y…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Indirect evidence “Amb més de quatre decades d’experiència i una sòlida tradició, el mostre despatx d’advocats és la teva opció de confiança per a totes les teves necessitats legals en dret civil i…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Partial evidence “CABRERA Y RAVINA ABOGADOS is a well established law firm founded in 1914.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Indirect evidence “Despacho de abogados especializado en Derecho Mercantil.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “Founded in 1982, Medco has been the leading shipbroking firm in Spain for the last decades.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Strong evidence “PROA LEGAL is a boutique Law firm specialised in maritime, yachting, transport, and insurance law.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Partial evidence “Marine & Real State Law in Balearic Islands.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “Specialized Law firm: Claims litigation.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “Alquézar Advocats es una boutique jurídicolegal especializada en la indústria del transporte y la logística, tanto a nivel nacional como internacional.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “In cross-border matters it is of vital importance to work with partners who guarantee a fast and efficient communication, who have experience with the specific differences of the…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “Peris Walter nace en 2012 desde la especialización en el Derecho Marítimo y Portuario, y la integración en consejos de Administración de su socio fundador, dinamizando el derecho…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence “Maura Arteta Abogados es un despacho de Abogados especializado en Derecho Marítimo y del Transporte, Derecho del Seguro y Comercio Internacional.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Somos un despacho de abogados especializado en seguros, incumplimientos contractuales, arrendamientos y responsabilidad civil, contractual y extracontractual, que apostamos, como…” Source: RevenueBase Database · checked Sep 5, 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: maritime 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 maritime law firms.
- Partial evidence
- Its own public description names part of maritime law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name maritime 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 23 of 94 maritime law firms based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 69 reachable decision-makers.
Free signup · no credit card
Maritime law firms based in Spain at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 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 Spain whose own description of what they do matches “maritime 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 maritime 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 maritime law firms, and records with no verified work email. Companies headquartered outside Spain 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, 69 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.
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 maritime 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 maritime law firms are there based in Spain?
RevenueBase identified 94 maritime law firms headquartered in Spain 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?
ONTAX, headquartered in Vigo, tops this list with the largest team on record.
Which city has the most maritime law firms?
Madrid leads with 23 headquartered companies, followed by Barcelona (22) and Valencia (6).
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 69 verified decision-maker contacts tracked across these 94 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.
Ready to reach these companies? Verified emails and direct dials for all 94 maritime law firms based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Maritime law firms by geography
- Maritime law firms based in the United States
- Maritime law firms based in Brazil
- Maritime law firms based in the United Kingdom
- Maritime law firms based in Italy
- Maritime law firms based in France
- Maritime law firms based in Germany
- Maritime law firms based in Greece
- Maritime law firms based in the Netherlands
- Maritime law firms based in Canada
- Maritime law firms based in Belgium
- Maritime law firms based in Poland
- Maritime law firms based in Australia
Browse the directory
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.