Company lists · Data refreshed September 2026

Top 25 Capital markets law firms based in Spain

RevenueBase identified 484 capital markets law firms headquartered in Spain as of September 2026 and tracks 3,313 professional contacts across them, including 372 with verified work emails. Madrid is the largest hub.

This list covers capital markets 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
484Companies
3,313Contacts tracked
372Verified emails
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The 25 largest capital markets law firms based in Spain

Ranked by team size
Top 25 of 484 capital markets law firms based in Spain, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to capital markets law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMadrid, SpainHQ checked Sep 14, 202651-200238 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceMadrid, SpainHQ checked Sep 14, 2026201-500138 contacts →

Indirect evidence

“Lener Asesores is composed of lawyers and economists and has more than 35 years of experience in legal and economic advice to companies.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceBarcelona / Madrid, SpainHQ checked Sep 14, 202651-20097 contacts →

Indirect evidence

“Bienvenid@ a BPV.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceOviedo, SpainHQ checked Sep 14, 2026n/a91 contacts →

Indirect evidence

“Despacho de nueva creación.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceMiami, SpainHQ checked Sep 14, 202651-20077 contacts →

Partial 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 14, 2026
6Indirect evidenceMadrid, SpainHQ checked Sep 14, 202651-20065 contacts →

Indirect evidence

“finReg360 es la firma líder en España en regulación financiera.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceMadrid, SpainHQ checked Sep 14, 202611-5064 contacts →

Strong 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 14, 2026
8Indirect evidenceBarcelona, SpainHQ checked Sep 14, 202611-5059 contacts →

Indirect evidence

“FILS presta a sus clientes un asesoramiento de alto valor añadido a lo largo de todo el recorrido empresarial: en la creación y desarrollo del negocio (área mercantil, área…”

Source: RevenueBase Database · checked Sep 14, 2026
9Strong evidenceBarcelona, SpainHQ checked Sep 14, 202611-5046 contacts →

Strong evidence

“Across Legal is a law firm specialized in M&A and Venture Capital.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceMadrid, SpainHQ checked Sep 14, 202611-5045 contacts →

Indirect evidence

“Bestinver Securities lleva más de 30 años acercando inversores nacionales e internacionales a compañías de nuestro entorno.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceMadrid, SpainHQ checked Sep 14, 202611-5041 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceVigo, SpainHQ checked Sep 14, 202611-5035 contacts →

Strong evidence

“Despacho de Abogados/Law Firm Especialidad en Derecho Mercantil, Societario, Financiero y Mercado de Capitales, Concursal y Reestructuraciones, Asesoramiento y Planificación…”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceDonostia / San Sebastián, SpainHQ checked Sep 14, 202651-20033 contacts →

Indirect evidence

“CIALT es un despacho profesional compuesto por un equipo altamente experimentado y especializado con la firme convicción y seguridad de ofrecer al cliente la máxima calidad y…”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceBarcelona, SpainHQ checked Sep 14, 202611-5029 contacts →

Indirect evidence

“Blas de Lezo Abogados ofrece una solución adecuada a las necesidades de su negocio.”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceMadrid, SpainHQ checked Sep 14, 202611-5029 contacts →

Indirect evidence

“CORTÉS, ABOGADOS es una firma que tiene su origen en el Despacho fundado por el Abogado y Profesor de Derecho Procesal Matías Cortés Martín en 1932.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceBarcelona, SpainHQ checked Sep 14, 202611-5028 contacts →

Indirect evidence

“Ferco Gestión es un Despacho Multidisciplinario compuesto por un equipo Abogados y Asesores Financieros especialistas en diversas materias, agrupados para poder ofrecer un…”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceMadrid, SpainHQ checked Sep 14, 202611-5026 contacts →

Indirect evidence

“ESCALONA & DE FUENTES es un despacho independiente formado por un grupo de abogados con la formación jurídica y económica y la experiencia necesaria para poder ofrecer a sus…”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceMadrid, SpainHQ checked Sep 14, 202611-5025 contacts →

Partial evidence

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: RevenueBase Database · checked Sep 14, 2026
19Indirect evidencePalma De Mallorca, SpainHQ checked Sep 14, 202611-5025 contacts →

Indirect evidence

“Buades Legal es una firma de abogados multidisciplinar, que aporta valor a sus clientes con un servicio integral y eficaz, prestado por sus especialistas en el seno de una…”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceMadrid, SpainHQ checked Sep 14, 20261,001-5,00023 contacts →

Indirect evidence

“La firma legal internacional que actúa como su socio de negocios.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceMadrid, SpainHQ checked Sep 14, 202611-5023 contacts →

Indirect evidence

“Despacho de abogados especializado en los sectores bancario, financiero, asegurador y construcción, con más de 25 años de experiencia en el asesoramiento y la representación de…”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceMadrid, SpainHQ checked Sep 14, 202611-5022 contacts →

Indirect evidence

“Rivero & Gustafson Abogados, fundado en 1997 por Sebastián Rivero y John R.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceMadrid / Zaragoza, SpainHQ checked Sep 14, 202611-5021 contacts →

Partial evidence

“Tribeca Abogados is an independent law firm advising on corporate, tax and real estate matters from Madrid, Zaragoza and London.”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceBarcelona, SpainHQ checked Sep 14, 20261-1017 contacts →

Indirect evidence

“At BUSQUETS, our focus and priority is providing agile solutions and long-term relationships of trust with our clients.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceMadrid, SpainHQ checked Sep 14, 202611-5017 contacts →

Partial evidence

“ITER Law is a law firm with a sector-focused specialisation.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 484 capital markets law firms based in Spain

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Capital markets law firms based in Spain at a glance

As of Sep 14, 2026
11.2%Verified-email coverage
6.8Average contacts per company
1-10Median size (employees)
32.2%Largest-city concentration · Madrid
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
359
11-50
105
51-200
11
201-500
2
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 484 companies.

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 capital markets law 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 “capital markets law 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 capital markets law 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 capital markets 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 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, 372 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 14, 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.

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 capital markets law 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 capital markets law firms are there based in Spain?

RevenueBase identified 484 capital markets 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?

Cremades & Calvo-Sotelo, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most capital markets law firms?

Madrid leads with 156 headquartered companies, followed by Barcelona (65) and Valencia (19).

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 372 verified decision-maker contacts tracked across these 484 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 14, 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.