Company lists · Data refreshed November 2026

Top 25 International tax services based in Spain

RevenueBase identified 376 company matches for international tax services associated with Spain as of November 2026 and tracks 2,210 professional contacts across them, including 225 with verified work emails. Madrid is the largest hub.

This list covers company matches for international tax services 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 November 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 Nov 6, 2026 How this list was built
376Companies
2,210Contacts tracked
225Verified emails
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The 25 largest international tax services based in Spain

Ranked by team size
Top 25 of 376 company matches for international tax services based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 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 Nov 6, 2026201-500316 contacts →

Exact match

“Founded in Spain in 1979, and with a wide presence in LATAM & Europe, we become an extension of the Finance Department of our clients helping them in their expansion abroad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCartagena, SpainHQ recorded Nov 6, 2026n/a180 contacts →

Exact match

“Nuestras asesorías en Cartagena y Murcia están altamente capacitadas para realizar un servicio global de asesoramiento laboral, fiscal y contable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPamplona/iruña, SpainHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“ANADE es una firma especializada en la asesoría laboral, fiscal, contable y mercantil sita en Pamplona (Navarra).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“ILIA ETL GLOBAL es una asesoría especializada en fiscalidad y legalidad Internacional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOrihuela, SpainHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Our office is a law firm with more than 20 years of experience in legal and tax advice.”

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

Exact match

“En Euskaltax trabajamos desde el año 1998 en el ámbito del asesoramiento tributario y mercantil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1020 contacts →

Exact match

“PQS Consulting es una firma de servicios profesionales que ofrece asesoramiento fiscal, financiero y de negocio a PYMES, empresas multinacionales y a personas físicas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“B LAW & TAX is a leading firm in tax and legal advisory services with both national and international reach.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCórdoba, SpainHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“GALÁMICA es una firma tradicional de servicios legales y fiscales que asesora a nivel local, regional y nacional desde los distintos ángulos del derecho de los negocios.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBenifaió, SpainHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Ofrecemos una asesoría integral a las empresas respecto al cumplimiento de sus obligaciones tributarias, proporcionándoles al mismo tiempo nuestro apoyo para la solución de sus…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Allow us to welcome you to an international firm with a boutique mindset, specialising in the tax optimisation of your wealth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchManacor, SpainHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Januar es una despacho de origen mallorquín y enfoque internacional de servicios de asesoramiento legal y tributario.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMálaga, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“At MDG Advisors we specialize in accounting, tax and payroll compliance for international investors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPalma De Mallorca, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Fiscontrol Assessors es un despacho de profesionales tributarios que presta sus servicios desde 1985.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBarcelona, SpainHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Tax Boutique establecida en Barcelona especializada en la asesoría fiscal y la planificación tributaria tanto en el ámbito nacional como internacional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Somos un despacho especializado en Derecho Tributario, fundado y dirigido desde hace más de 30 años por Eduardo Luque Delgado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAlcorcón, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Somos un despacho con más de cuarenta años de experiencia, integrado por más treinta de profesionales que ofrecemos un asesoramiento integral a nuestros clientes, dispensándoles…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Fundada en AAMC es una empresa de servicios de carácter multidisciplinar que proporciona cobertura a todas las necesidades de la empresa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“US Tax Consultants is a company with offices in Madrid, Asturias (Spain) and Algarve (Portugal), with national and international presence, and with 56 years of experience in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMarbella, SpainHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“We are a legal and tax services firm with a clear international scope.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“ASIDNE no es una asesoría tradicional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMálaga, SpainHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“At Certus Legal Firm, we provide expert tax advice and legal consultancy services tailored to startups, scale-ups, and international companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Lawants is an international legal firm specializing in providing customized international legal and tax consultancy services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Los servicios de David Mülchi & Asociados se dirigen principalmente a profesionales del sector legal y tributario, a los empresarios, las pymes y las empresas familiares, bien…”

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

Showing 25 of 376 international tax services based in Spain

See the full list, filter by size, metro and specialty, and access 225 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax services based in Spain at a glance

As of Nov 6, 2026
10.2%Verified-email coverage
5.9Average contacts per company
1-10Median size (employees)
19.4%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
260
11-50
93
51-200
11
201-500
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 376 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 Spain whose business descriptions match “international tax services” 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 225 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 November 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 “international tax services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax services are there based in Spain?

RevenueBase identified 376 company matches for international tax services associated with Spain as of November 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?

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

Which city has the most international tax services?

Madrid leads with 73 company records, followed by Barcelona (60) and Malaga (15).

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 225 professional contacts with verified work emails tracked across these 376 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 November 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.