Company lists · Data refreshed September 2026
Top 25 International patent law firms based in Spain
RevenueBase identified 165 international patent law firms headquartered in Spain as of September 2026 and tracks 2,037 professional contacts across them, including 226 with verified work emails and 16 with mobile numbers. Madrid is the largest hub.
This list covers international patent 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 international patent law firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 174 | ||||
“Somos una firma española especializada en propiedad industrial e intelectual.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 109 | ||||
“BALDER is one of Spain’s most innovative IP law firms, founded in Madrid in 2012.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 87 | ||||
“ISERN PATENTES Y MARCAS es un despacho profesional de Agentes de la Propiedad Industrial, Abogados e Ingenieros especializado exclusivamente en el asesoramiento estratégico…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 | ||||
“ABG is one of the leading Spanish IP firms and provides highly-qualified technical and legal advice on intellectual property matters.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | Santiago Mediano AbogadosIndirect evidence | 43 | |||
“Somos un despacho de abogados, con oficinas en Madrid y Lisboa, que ofrece asesoramiento y servicios legales de alto valor añadido gracias a nuestro equipo cualificado, nuestros…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 | ||||
“Grau & Angulo is an Intellectual Property law firm founded in 2003 and specialising exclusively in defending its clients’ IP rights.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 38 | ||||
“Baylos / ABION is at the forefront of law firms in Spain in the field of Intellectual Property and related matters.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 33 | ||||
“We are a professional law firm with 85 years of experience in the intellectual property sector, specialising in the advice, protection, defence and maintenance of trademarks…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 | ||||
“BomhardIP is a law firm specialising in Intellectual Property Law, which started business in Alicante on 1 March 2015.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 26 | ||||
“Despacho de abogados mercantilista fundado en especializado en sus orígenes en la práctica del derecho de la propiedad industrial e intelectual, ha ido ampliando su actividad a…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 26 | ||||
“Letslaw is an international law and multidisciplinary firm that provides legal advice in business law specialized in digital and intellectual porperty law.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 | ||||
“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: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 23 | ||||
“A rm of reference at international level with more than 26 years of experience in the strategic management, defense and protection of creativity as well as in innovation around…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 | ||||
“SUGRAÑES es un despacho profesional iniciado a finales del siglo XIX, especializado en la protección, defensa, asesoramiento y gestión de todo tipo de asuntos relacionados con la…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 | ||||
“Our boutique IP Law Firm, focusing on trademarks, patents, designs, copyrights and domain name matters is located in Madrid, near the Spanish Patent and Trademark Office (Oficina…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 | ||||
“Nuestro Objetivo: Usted necesita Saber para poder Decidir.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 | ||||
“González-Bueno SLP is a legal firm established in 2004 offering assessment based on excellence and high levels of specialisation in its specific practice areas.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 | ||||
“Firma de abogados y consultores especializados en Derecho Internacional, en concreto en el campo de la Propiedad Intelectual.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 | ||||
“agenpi® is a law firm specialized in registration and litigation services for industrial and intellectual property.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 | ||||
“TRBL Intellectual Property es el área de Propiedad Industrial (IP) de TRBL Services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 | ||||
“At Ochandiano & Molina we have been working for more than 40 years in the management of trademarks and patents, which makes us the reference firm for Patents and Trademarks in…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“Sol Muntañola Abogados es un despacho con historia.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | Emhe LegalIndirect evidence | 6 | |||
“Nuestro compromiso es la excelencia en la gestión, en el conocimiento y en el asesoramiento de nuestros clientes.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 | ||||
“DEVENIRE LEGAL es un despacho de abogados y consultores formado por profesionales especializados y con contrastada experiencia que compartimos una trayectoria común como equipo de…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 165 international patent law firms based in Spain
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International patent law firms based in Spain at a glance
As of Sep 4, 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 international patent 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 Spain whose own description of what they do matches “international patent 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 international patent 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 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, 226 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 4, 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.
International patent law firms by metro
- International patent law firms in Madrid62
- International patent law firms in Barcelona37
Frequently asked
How many international patent law firms are there based in Spain?
RevenueBase identified 165 international patent 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?
Elzaburu, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most international patent law firms?
Madrid leads with 62 headquartered companies, followed by Barcelona (37) and Alicante (9).
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 226 verified decision-maker contacts tracked across these 165 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 4, 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.
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