Company lists · Data refreshed September 2026

Top 25 Tax law firms based in Madrid, Spain

RevenueBase identified 583 company matches for tax law firms associated with Madrid, Spain as of September 2026 and tracks 13,739 professional contacts across them, including 1,205 with verified work emails. Across Spain, Madrid is the largest hub for this category.

This list covers company matches for tax 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 6, 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 6, 2026 How this list was built
583Companies
13,739Contacts tracked
1,205Verified emails
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The 25 largest tax law firms based in Madrid, Spain

Ranked by team size
Top 25 of 583 company matches for tax law firms based in Madrid, Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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 6, 20265,001-10,0005,114 contacts →

Exact match

“KPMG en España es una firma de servicios profesionales que ofrece servicios de auditoría, fiscales y de asesoramiento legal, financiero y de negocio con más de 2.700 profesionales…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 6, 20261,001-5,0002,853 contacts →

Exact match

“Garrigues is an international legal and tax services firm that advises clients locally, regionally and globally from every angle of business law.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Sep 6, 202651-200293 contacts →

Exact match

“Somos un despacho de abogados referente en el asesoramiento jurídico empresarial, con un estilo propio, el #, que aplican nuestros más de 190 profesionales.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 6, 202651-200108 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 6, 202651-20062 contacts →

Exact match

“Vaciero es una firma profesional de servicios jurídicos, financieros y de auditoría para empresas e instituciones, con más de 30 años de experiencia.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Sep 6, 202651-20051 contacts →

Exact match

“En Ponter te damos cobertura total para que no tengas que ir a ningún otro sitio.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5047 contacts →

Exact match

“mavens significa expertos de confianza en una materia compleja.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Sep 6, 2026201-50046 contacts →

Exact match

“act legal Spain, traces its origins to Colón de Carvajal Abogados, a firm founded in 1985, which has always been dedicated to business law, with a particular focus on dispute…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Sep 6, 202651-20044 contacts →

Exact match

“As attorneys, tax advisers, management and IT consultants and auditors, we are present with 110 own offices in around 50 countries.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Sep 6, 202651-20044 contacts →

Exact match

“Fundado en 2012 por Felipe Alonso y Ernesto García-Trevijano, quienes atesoran una amplia experiencia y reconocimiento en el mercado jurídico español, el empeño de GTA VILLAMAGNA…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5041 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5038 contacts →

Exact match

“TGS Edisa is a multidisciplinary firm that since 1988 is providing tax, accounting, legal an labor advisory services and, more recenfly, in fields such as digital consultancy and…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16Exact matchMadrid, SpainHQ recorded Sep 6, 202651-20037 contacts →

Exact match

“Somos una asesoría que proporciona un servicio integral a empresas y profesionales en materia legal, fiscal y contable, laboral, mercantil y financiera.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5035 contacts →

Exact match

“QualityConta es una compañía de profesionales del derecho y la economía, fundada en 1987, que ofrece un servicio integral de consultoría, asesoramiento y gestión a empresas y…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5033 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5031 contacts →

Exact match

“Amagna Legal es un despacho de abogados orientado a ofrecer asesoramiento jurídico con visión estratégica, rigor técnico y un alto compromiso profesional.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5030 contacts →

Exact match

“We are a Spanish multidisciplinary boutique law firm with offices in Madrid.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5030 contacts →

Exact match

“EQUIPO ECONOMICO (Ee) is a professional services firm established in 2006, comprised of a qualified team of experts with a proven track record in taking strategic decisions in…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5029 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5029 contacts →

Exact match

“Larrauri & Martí Abogados somos un despacho de abogados constituido por más de 20 profesionales especializados en diferentes áreas jurídicas que cubren prácticamente todas las…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5026 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 6, 202611-5025 contacts →

Exact match

“LEIALTA is a business consulting firm that supports companies in their key decisions, combining strategy, compliance and close advisory.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

Showing 25 of 583 tax law firms based in Madrid, Spain

See the full list, filter by size, metro and specialty, and access 1,205 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax law firms based in Madrid, Spain at a glance

As of Sep 6, 2026
8.8%Verified-email coverage
23.6Average contacts per company
1-10Median size (employees)
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
354
11-50
196
51-200
22
201-500
6
501-1,000
1
1,001-5,000
2
5,001-10,000
1

Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 583 companies.

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 “tax 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 1,205 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 6, 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 “tax law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 583 company matches for tax 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?

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

Which city in Spain has the most tax law firms?

Madrid leads Spain with 583 company records, followed by Barcelona (380) and Valencia (115).

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 1,205 professional contacts with verified work emails tracked across these 583 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 6, 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 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.