Company lists · Data refreshed September 2026

Top 25 Big six law firms based in Spain

RevenueBase identified 852 company matches for big six law firms associated with Spain as of September 2026 and tracks 11,517 professional contacts across them, including 1,488 with verified work emails and 114 with mobile numbers. Madrid is the largest hub.

This list covers company matches for big six law firms associated with 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 23, 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 23, 2026 How this list was built
852Companies
11,517Contacts tracked
1,488Verified emails
114Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest big six law firms based in Spain

Ranked by team size
Top 25 of 852 company matches for big six law firms based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 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 matchSpainHQ recorded Sep 23, 20261,001-5,0002,214 contacts →

Exact match

“With more than 2,500 legal professionals operating in over 75 countries, Deloitte Legal collaborates seamlessly across borders and with other Deloitte businesses and service lines.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 23, 2026501-1,000557 contacts →

Exact match

“Gómez-Acebo & Pombo is an international law firm that has provided legal advisory services in all areas of business law since 1971.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3Exact matchMadrid/barcelona/valencia/sevilla, SpainHQ recorded Sep 23, 2026201-500434 contacts →

Exact match

“RCD is a global, dynamic and innovative law firm providing comprehensive legal advice.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 23, 2026201-500291 contacts →

Exact match

“BROSETA is a benchmark firm in the legal sector characterised by its involvement and commitment to the quality and excellence of the service provided to the client.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 23, 202651-200238 contacts →

Exact match

“Cremades & Calvo-Sotelo es una de las firmas de abogados más relevantes de España.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Sep 23, 2026201-500207 contacts →

Exact match

“Montero Aramburu & Gómez-Villares Atencia nace en 2024 fruto de la integración de Montero Aramburu & Gómez-Villares Atencia, dos despachos con una amplísima trayectoria y…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 23, 2026201-500192 contacts →

Exact match

“Bufete Barrilero y Asociados is one of Spain’s leading independent law firms engaged in the rendering of comprehensive legal advice services.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 23, 202651-200158 contacts →

Exact match

“We are a global company specialising in Intellectual Property, a pioneer in the creation of a culture of management, protection and defence of the intangible assets of…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9Exact matchBarcelona, SpainHQ recorded Sep 23, 202651-200137 contacts →

Exact match

“En AGM Abogados queremos ser aquello que nuestros clientes esperan de nosotros.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Sep 23, 2026201-500119 contacts →

Exact match

“Los complejos retos empresariales requieren una respuesta integrada en diferentes mercados, sectores y áreas del derecho.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Sep 23, 202651-200109 contacts →

Exact match

“BALDER is one of Spain’s most innovative IP law firms, founded in Madrid in 2012.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Sep 23, 202651-200108 contacts →

Exact match

“MAIO Legal is a law firm founded in 2011.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13Exact matchBarcelona / Madrid, SpainHQ recorded Sep 23, 202651-20097 contacts →

Exact match

“Bienvenid@ a BPV.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14Exact matchBarcelona Madrid, SpainHQ recorded Sep 23, 202651-20086 contacts →

Exact match

“ISERN PATENTES Y MARCAS es un despacho profesional de Agentes de la Propiedad Industrial, Abogados e Ingenieros especializado exclusivamente en el asesoramiento estratégico…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15Exact matchBarcelona, SpainHQ recorded Sep 23, 202651-20079 contacts →

Exact match

“Toda & Nel-lo is a multidisciplinary law firm specialized in legal advice and defense to companies and individuals, both in public and private spheres.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16Exact matchMiami, SpainHQ recorded Sep 23, 202651-20077 contacts →

Exact match

“Cases & Lacambra is a Client focused international law Firm, with a deep commitment to offer the best comprehensive advice in business law.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Sep 23, 202651-20075 contacts →

Exact match

“Osborne Clarke es un despacho de abogados internacional con más de 330 socios y más de 1.250 abogados repartidos en 26 sedes en Europa, EE.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Sep 23, 202611-5064 contacts →

Exact match

“Founded in 1994 and considered since its early years as a law firm with a consolidated corporate and commercial practice with particular expertise and market recognition in M&A…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Sep 23, 202651-20060 contacts →

Exact match

“Somos una firma de asesoría jurídica que ofrece un servicio multidisciplinar y flexible en el ámbito nacional e internacional.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20Exact matchBarcelona, SpainHQ recorded Sep 23, 2026n/a60 contacts →

Exact match

“CBC ADVOCATS se fundó en el año 2006 resultado de la fusión de los abogados XAVIER COCA VERDAGUER, ELENA BALAGUER LOBREGAT y ORIOL CERDÀ ALIMBAU, con más de 15 años de experiencia…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Sep 23, 202611-5044 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Sep 23, 202611-5041 contacts →

Exact match

“Firma legal especializada en la abogacía de los negocios.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23Exact matchBarcelona, SpainHQ recorded Sep 23, 202611-5040 contacts →

Exact match

“Law Firm since the year 1969, we are in the center of Barcelona.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24Exact matchBarcelona, SpainHQ recorded Sep 23, 202611-5038 contacts →

Exact match

“Grau & Angulo is an Intellectual Property law firm founded in 2003 and specialising exclusively in defending its clients’ IP rights.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 23, 202611-5038 contacts →

Exact match

“Baylos / ABION is at the forefront of law firms in Spain in the field of Intellectual Property and related matters.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

Showing 25 of 852 big six law firms based in Spain

See the full list, filter by size, metro and specialty, and access 1,488 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Big six law firms based in Spain at a glance

As of Sep 23, 2026
12.9%Verified-email coverage
1.0%Mobile-number coverage
13.5Average contacts per company
1-10Median size (employees)
29.7%Largest-city concentration · Madrid
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
622
11-50
187
51-200
26
201-500
7
501-1,000
3
1,001-5,000
1

Freshness & accuracy

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

Email last verified

Median 26.0d

Company record updated

Median 78.0d

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 Spain whose business descriptions match “big six 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 1,488 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 23, 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.

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 “big six law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many big six law firms are there based in Spain?

RevenueBase identified 852 company matches for big six law firms associated with 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?

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

Which city has the most big six law firms?

Madrid leads with 253 company records, followed by Barcelona (116) and Valencia (45).

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 1,488 professional contacts with verified work emails tracked across these 852 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 23, 2026.

Ready to reach these companies? Verified emails and direct dials for all 852 big six law firms based in 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.