Company lists · Data refreshed September 2026

Top 19 Data protection law firms based in Madrid, Spain

RevenueBase identified 112 company matches for data protection law firms associated with Madrid, Spain as of September 2026 and tracks 876 professional contacts across them, including 94 with verified work emails and 13 with mobile numbers. Across Spain, Madrid is the largest hub for this category.

This list covers company matches for data protection law firms associated with Madrid, Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 10, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 10, 2026 How this list was built
112Companies
876Contacts tracked
94Verified emails
13Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 19 largest data protection law firms based in Madrid, Spain

Ranked by team size
Top 19 of 112 company matches for data protection law firms based in Madrid, Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 10, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, SpainHQ recorded Sep 10, 202651-200183 contacts →

Exact match

“Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 10, 202651-200110 contacts →

Exact match

“Audidat Protección de Datos lleva en el mercado desde 2003, cuando un grupo de abogados y profesionales especializados en economía, marketing y empresa con más de veinte años de…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Sep 10, 202651-20066 contacts →

Exact match

“PRODAT® es la organización líder especializada en servicios de Consultoría y Auditoría en el ámbito de la Ley Orgánica de Protección de Datos de Carácter Personal (LOPD) desde…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 10, 202611-5041 contacts →

Exact match

“Somos un despacho de abogados que nace fruto de la integración de distintos profesionales con acreditada experiencia en el ámbito del Derecho.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 10, 202651-20027 contacts →

Exact match

“Letslaw is an international law and multidisciplinary firm that provides legal advice in business law specialized in digital and intellectual porperty law.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Sep 10, 202611-5017 contacts →

Exact match

“WE ARE LAWYERS: Audens is a Spanish law firm practicing business law.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 10, 202651-20013 contacts →

Exact match

“Nuestro equipo de profesionales está compuesto por abogados y economistas con amplia experiencia.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 10, 202611-5012 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Sep 10, 202611-5011 contacts →

Exact match

“Metricson is a leading law firm specialised in legal advice for tech and internet companies.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Sep 10, 202611-5011 contacts →

Exact match

“ALARO AVANT está especializado en prestar servicios de Auditoría y Adaptación a la normativa en Protección de Datos Personales dando cumplimiento a la legislación vigente y…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Sep 10, 202611-508 contacts →

Exact match

“GrupoAdaptalia es una consultora especializada en la adaptación de empresas a las leyes de obligado cumplimiento, así como otros servicios de gran interés empresarial.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Sep 10, 20261-108 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Sep 10, 202611-506 contacts →

Exact match

“Somos una Consultora especializada en Protección de Datos de Carácter Personal cuya actividad se centra en la prestación de servicios integrales encaminados al cumplimiento de la…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Sep 10, 20261-105 contacts →

Exact match

“Deloyers nace de una convicción : hay una forma distinta de ejercer la abogacía.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Sep 10, 20261-103 contacts →

Exact match

“El Despacho J.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
16Exact matchMadrid, SpainHQ recorded Sep 10, 20261-103 contacts →

Exact match

“Expertos en protección de datos, protección de menores frente a la violencia en entornos deportivos, prevención del blanqueo de capitales, igualdad de género y cumplimiento…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Sep 10, 20261-103 contacts →

Exact match

“Leegaltech es una firma legal líder en el sector del cumplimiento normativo con una visión diferente.”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Sep 10, 202611-501 contacts →

Exact match

“Nuestra labor principal es ayudar a tu empresa a gestionar las necesidades del cumplimiento normativo en materia de protección de datos para que puedas adelantarte a los riesgos y…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Sep 10, 20261-101 contacts →

Exact match

“Firma española de abogados especializados en el Derecho de las Tecnologías de la Información, Propiedad Intelectual, y Seguridad Privada, que ha asesorado, durante años, a…”

Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase

Showing 19 of 112 data protection law firms based in Madrid, Spain

See the full list, filter by size, metro and specialty, and access 94 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Data protection law firms based in Madrid, Spain at a glance

As of Sep 10, 2026
10.7%Verified-email coverage
1.5%Mobile-number coverage
7.8Average contacts per company
1-10Median size (employees)
Sep 10, 2026Page data refreshed

Companies by employee count

1-10
79
11-50
24
51-200
7

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

Company record updated

Median 63.0d

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Madrid, Spain whose business descriptions match “data protection law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 94 professional contacts with verified work emails across the full matched dataset. 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 10, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Data protection law firms by metro in Spain

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “data protection law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data protection law firms are there based in Madrid, Spain?

RevenueBase identified 112 company matches for data protection law firms associated with Madrid, Spain as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Govertis tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Spain has the most data protection law firms?

Madrid leads Spain with 75 company records, followed by Barcelona (28) and Valencia (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 94 professional contacts with verified work emails tracked across these 112 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 10, 2026.

Ready to reach these companies? Verified emails and direct dials for all 112 data protection law firms based in Madrid, Spain. Start with a free account, no credit card.

Download this list →

Related lists

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.