Company lists · Data refreshed September 2026
Top 25 Internet law firms based in Spain
RevenueBase identified 242 internet law firms headquartered in Spain as of September 2026 and tracks 1,262 professional contacts across them, including 114 with verified work emails and 25 with mobile numbers. Madrid is the largest hub.
This list covers internet 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 internet law firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 84 | ||||
“Royal Comunicación es una empresa dedicada al Marketing online teniendo como fin principal optimizar y rentabilizar los recursos de las empresas en la red.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 23 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 17 | ||||
“WE ARE LAWYERS: Audens is a Spanish law firm practicing business law.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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. | |||||
| 8 | 13 | ||||
“Nuestro equipo de profesionales está compuesto por abogados y economistas con amplia experiencia.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“Law firm specializing in Data Protection, Digital Law, Compliance and Artificial Intelligence since 1987” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | PymelegalIndirect evidence | 12 | |||
“En Pymelegal ayudamos a autónomos y Pymes a tener su negocio actualizado y legalizado en materia de Protección de Datos y Propiedad Intelectual.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 | ||||
“Picón & Asociados es un despacho de abogados que, desde opera en sectores relacionados con la tecnología, la protección de datos y la gestión de la información.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 | ||||
“Figueras Legal es el resultado de la fusión de los conocimientos jurídicos, técnicos y humanos adquiridos por Figueras Advocats durante las últimas dos décadas, y de su proyección…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 | ||||
“We are a full service law firm with young and brilliant lawyers helping businesses resolve their legal issues!” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 | ||||
“Metricson is a leading law firm specialised in legal advice for tech and internet companies.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 | ||||
“Iuristec inició su actividad en el año 2002, con la intención de poner a trabajar juntos abogados e informáticos, para atender a toda cuestión que requiera de conocimientos…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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. | |||||
| 17 | 8 | ||||
“eDefense es una Firma Legal especializada en el Derecho Corporativo, Derecho de Nuevas Tecnologías, Ciberseguridad y Propiedad Intelectual.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 | ||||
“Centramos nuestra labor en un doble ámbito: asesoría y formación -todo, con dedicación plena y en exclusiva a Derecho de las TIC: protección de datos, ecommerce, Administración…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | SeinaleIndirect evidence | 7 | |||
“Seguridad legal y Tecnologías de la Información.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 | ||||
“Sol Muntañola Abogados es un despacho con historia.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 | ||||
“Croma Legal is an independent legal boutique established by experienced attorneys who have worked at leading law firms both nationally and internationally.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 | ||||
“En Abbo ayudamos a firmas y pequeños despachos de abogados a aumentar su cifra de negocio online ayudándoles a captar más y mejores clientes a través de Internet.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 | ||||
“Somos tradición, apostamos por la tecnología.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 | ||||
“Deloyers nace de una convicción : hay una forma distinta de ejercer la abogacía.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | Law4digitalIndirect evidence | 4 | |||
“Law4digital es una boutique legal especializada en negocios digitales y compañías tecnológicas.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 242 internet law firms based in Spain
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Internet 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 internet 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 “internet 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 internet 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, 114 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.
Internet law firms by metro
- Internet law firms in Madrid69
- Internet law firms in Barcelona37
Frequently asked
How many internet law firms are there based in Spain?
RevenueBase identified 242 internet 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?
Isern Patentes Y Marcas, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most internet law firms?
Madrid leads with 69 headquartered companies, followed by Barcelona (37) and Sevilla (8).
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 114 verified decision-maker contacts tracked across these 242 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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Internet law firms by geography
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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.