Company lists · Data refreshed September 2026
Top 25 Family office law firms based in Spain
RevenueBase identified 483 family office law firms headquartered in Spain as of September 2026 and tracks 2,750 professional contacts across them, including 374 with verified work emails. Madrid is the largest hub.
This list covers family office 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 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 family office law firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 102 contacts → | ||||
Partial evidence “En Hereditas, somos un despacho de abogados especializado en derecho de familia, con amplia experiencia en ofrecer asistencia jurídica.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 77 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 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 67 contacts → | ||||
Partial evidence “MdF Family Partners es una empresa independiente de asesoramiento familiar y financiero a grandes patrimonios.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 64 contacts → | ||||
Partial 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. | |||||
| 5 | 58 contacts → | ||||
Indirect evidence “We are a team of more than 50 lawyers and economists, who work advising companies with an emphasis on people, and providing solutions that really meet their needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 58 contacts → | ||||
Indirect evidence “Desde 1957, Delta ofrece un asesoramiento 360 en las áreas- Económico - Fiscal - Jurídica - Laboral - Patrimonial Nuestro objetivo es maximizar el potencial de cada empresa…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 49 contacts → | ||||
Strong evidence “Wealth Solutions, asesora a clientes de altos patrimonios tanto particulares como de instituciones (Fundaciones, ONG's, Sociedades de inversión, Single Family Offices, etc.) en…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 43 contacts → | ||||
Indirect evidence “En Varona Legal & Numbers encontrarás a tu alcance un equipo de profesionales abogados y economistas dedicados a la asesoría fiscal, contable, mercantil y jurídica, con una…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 41 contacts → | ||||
Indirect evidence “Firma legal especializada en la abogacía de los negocios.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 40 contacts → | ||||
Indirect evidence “Anaford lo conformamos un grupo de profesionales altamente especializados, cualificados y comprometidos que nos hemos unido para construir una firma basada en el desarrollo de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Partial evidence “MultiFamily Office Inmobiliario con inversiones en 10 países: Europa y Latinoamérica Estructuración Inmobiliaria nacional e internacional.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 33 contacts → | ||||
Indirect evidence “Laffer Abogados persigue un claro objetivo: acompañar al cliente en todas las fases jurídicas de su trayectoria, ofreciendo una dedicación personalizada y una atención constante a…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 contacts → | ||||
Indirect evidence “Bestax es un despacho en expansión especializado en derecho fiscal y legal con sedes en Pamplona, Vitoria y una oficina de representación en Madrid.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Partial evidence “International law firm specialized in property transactions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Indirect evidence “MORA & JORDANO cumple en 2023 sus 20 años de actividad alcanzando la treintena de profesionales y habiendo consolidado su presencia en el territorio andaluz.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Partial evidence “B LAW & TAX is a leading firm in tax and legal advisory services with both national and international reach.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 23 contacts → | ||||
Indirect evidence “IparBilbao Abogados es la consolidación de la carrera profesional de cuatro abogados que en 2014 unieron sus despachos profesionales para ampliar y mejorar el servicio a sus…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 20 contacts → | ||||
Partial evidence “At Kinship Law Partners we act as trusted advisors to select private clients and their companies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 contacts → | ||||
Partial evidence “CIM Tax & Legal es una Firma de servicios legales con una amplia y dilatada experiencia y especialización en el asesoramiento legal y fiscal a empresas familiares y en la gestión…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 19 contacts → | ||||
Indirect evidence “Suandco tiene su origen en el despacho fundado en 1951 por Don Francisco Suarez Sotillo, abogado e Inspector de Hacienda.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 18 contacts → | ||||
Indirect evidence “JJL Abogados nació como una firma de abogados boutique integrada por profesionales con una amplia experiencia en la prestación de servicios de abogacía y asesoramiento fiscal…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Indirect evidence “En BtS Professional Services llevamos más de 30 años impulsando Pymes y Patrimonios como asesores legales, fiscales y económico-financieros.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 contacts → | ||||
Partial evidence “ROMA BOHORQUES TAX & LEGAL es un despacho especializado en conflicto tributario, M&A, asesoramiento fiscal y mercantil en estructuración societaria, empresa familiar y conflicto…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Partial evidence “Culebras Assessors es una empresa familiar de asesoramiento fiscal, laboral, jurídico e inmobiliario con casi ochenta años de experiencia al servicio de empresas y particulares.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Indirect evidence “Empresa dedicada al asesoramiento integral de personas físicas y jurídicas en los ámbitos Social, Fiscal, Contable y Jurídico, así como a la Gestión Administrativa y…” 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: family office law 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 family office law firms.
- Partial evidence
- Its own public description names part of family office law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name family office law 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 483 family office law firms based in Spain
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Family office law firms based in Spain at a glance
As of Sep 28, 2026Companies by employee count
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 483 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 family office 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 “family office 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 family office 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 family office 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, 374 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.
Family office law 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 family office 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 family office law firms are there based in Spain?
RevenueBase identified 483 family office 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?
Hereditas, headquartered in Bilbao, tops this list with the largest team on record.
Which city has the most family office law firms?
Madrid leads with 132 headquartered companies, followed by Barcelona (86) and Valencia (25).
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 374 verified decision-maker contacts tracked across these 483 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.
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