Company lists · Data refreshed September 2026
Top 25 Biglaw firms based in Spain
RevenueBase identified 1,543 biglaw firms headquartered in Spain as of September 2026 and tracks 17,845 professional contacts across them, including 2,383 with verified work emails and 161 with mobile numbers. Madrid is the largest hub.
This list covers biglaw 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 28, 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 25 largest biglaw firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,214 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,130 contacts → | ||||
Indirect evidence “Founded in the 1940s, Uría Menéndez has since become one of the most prestigious international law firms.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 783 contacts → | ||||
Indirect evidence “Pérez-Llorca es una firma de abogados iberoamericana que opera en España, Portugal, México, Colombia y Perú y proporciona asesoramiento de la más alta calidad en las principales…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 557 contacts → | ||||
Indirect evidence “Gómez-Acebo & Pombo is an international law firm that has provided legal advisory services in all areas of business law since 1971.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 434 contacts → | ||||
Indirect evidence “RCD is a global, dynamic and innovative law firm providing comprehensive legal advice.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 291 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 261 contacts → | ||||
Indirect evidence “En 1984 nace EJASO (ESTUDIO JURÍDICO Y ASOCIADOS), una firma de abogados con vocación de crecer y convertirse en un despacho de abogados multidisciplinar que diera cobertura de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 238 contacts → | ||||
Indirect evidence “Cremades & Calvo-Sotelo es una de las firmas de abogados más relevantes de España.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 207 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 203 contacts → | ||||
Indirect evidence “At BDO Abogados we work to provide quality services and superior value to our clients, helping them to improve, succeed and grow their businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 192 contacts → | ||||
Indirect evidence “Bufete Barrilero y Asociados is one of Spain’s leading independent law firms engaged in the rendering of comprehensive legal advice services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 165 contacts → | ||||
Indirect evidence “Our mission is to democratize access to top legal talent and corporate clients with sophisticated legal needs by building the best community of top notch lawyers in the world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 137 contacts → | ||||
Indirect evidence “En AGM Abogados queremos ser aquello que nuestros clientes esperan de nosotros.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 119 contacts → | ||||
Indirect evidence “Los complejos retos empresariales requieren una respuesta integrada en diferentes mercados, sectores y áreas del derecho.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 108 contacts → | ||||
Indirect evidence “MAIO Legal is a law firm founded in 2011.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 97 contacts → | ||||
Indirect evidence “Bienvenid@ a BPV.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 97 contacts → | ||||
Indirect evidence “VENTO es una firma de servicios profesionales que ofrece un servicio de asesoramiento jurídico, fiscal y de consultoría de negocio, especializado y de calidad contrastada, para…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 91 contacts → | ||||
Indirect evidence “Despacho de nueva creación.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 90 contacts → | ||||
Indirect evidence “Augusta Abogados is a professional law firm specialised in commercial law, tax, restructuring of companies, labour law, air and space law and procedural law, amongst others, with…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 85 contacts → | ||||
Indirect evidence “Spanish law firm focused on comprehensive business advice in all areas of law.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 77 contacts → | ||||
Indirect evidence “addwill integra a más de 100 profesionales altamente cualificados en las diferentes áreas de la práctica del derecho de empresa y la consultoría financiera para ofrecer un…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 77 contacts → | ||||
Indirect evidence “Cases & Lacambra is a Client focused international law Firm, with a deep commitment to offer the best comprehensive advice in business law.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 76 contacts → | ||||
Indirect evidence “ARPA Abogados Consultores is a law firm established in 1991 in Pamplona.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 64 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 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: biglaw 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 biglaw firms.
- Partial evidence
- Its own public description names part of biglaw firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biglaw 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 25 of 1,543 biglaw firms based in Spain
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Biglaw firms based in Spain at a glance
As of Sep 28, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 31.0dCompany record updated
Median 82.0dHow 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 biglaw 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 “biglaw 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 biglaw 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 biglaw 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, 2,383 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 28, 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.
Biglaw firms by metro
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 biglaw 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 biglaw firms are there based in Spain?
RevenueBase identified 1,543 biglaw 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?
Deloitte Legal, headquartered in Spain, tops this list with the largest team on record.
Which city has the most biglaw firms?
Madrid leads with 433 headquartered companies, followed by Barcelona (233) and Valencia (79).
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 2,383 verified decision-maker contacts tracked across these 1,543 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 28, 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 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.