Company lists · Data refreshed September 2026

Top 25 International tax services based in Spain

RevenueBase identified 358 company matches for international tax services associated with Spain as of September 2026 and tracks 2,331 professional contacts across them, including 210 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 September 20, 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 20, 2026 How this list was built
358Companies
2,331Contacts tracked
210Verified emails
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The 25 largest international tax services based in Spain

Ranked by team size
Top 25 of 358 company matches for international tax services based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 20, 2026201-500298 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 · Sep 20, 2026 · View company records in RevenueBase
2Exact matchCartagena, SpainHQ recorded Sep 20, 2026n/a181 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 · Sep 20, 2026 · View company records in RevenueBase
3Exact matchBarcelona, SpainHQ recorded Sep 20, 20261,001-5,00080 contacts →

Exact match

“ETL GLOBAL es el primer grupo internacional de servicios profesionales de asesoramiento fiscal, legal y consultoría a Pymes y middle market en España y Europa.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
5Exact matchBarcelona, SpainHQ recorded Sep 20, 202651-20039 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Sep 20, 202651-20036 contacts →

Exact match

“MGI Audicon & Partners is part of the MGI network, a worldwide association of auditing and consulting firms with international and local presence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 20, 202611-5025 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 · Sep 20, 2026 · View company records in RevenueBase
8Exact matchBilbao, SpainHQ recorded Sep 20, 202611-5024 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBarcelona, SpainHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“Amedia Group is a business entity formed by a set of worldwide companies and offices that provides clients with great range of expertise in Business, Accounting, Legal and Tax…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchGirona, SpainHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“GRUP GESTIÓ és un gabinet professional d’assessorament i consultoria empresarial, que ofereix un servei integral, a empreses i particulars, en la gestió de les seves activitats.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Sep 20, 20261-1016 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 · Sep 20, 2026 · View company records in RevenueBase
12Exact matchBenifaió, SpainHQ recorded Sep 20, 202611-5014 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 · Sep 20, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“CONSULTING 21 TAX GROUP SL Asesoría con amplia experiencia en asesoramiento fiscal, contable, laboral y mercantil.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBarcelona, SpainHQ recorded Sep 20, 202611-5013 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 · Sep 20, 2026 · View company records in RevenueBase
15Exact matchBarcelona, SpainHQ recorded Sep 20, 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 · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Sep 20, 202611-5013 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 · Sep 20, 2026 · View company records in RevenueBase
17Exact matchAlcorcón, SpainHQ recorded Sep 20, 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 · Sep 20, 2026 · View company records in RevenueBase
18Exact matchBarcelona, SpainHQ recorded Sep 20, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchMarbella, SpainHQ recorded Sep 20, 20261-1012 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchMálaga, SpainHQ recorded Sep 20, 202611-5011 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchGranada, SpainHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“Con más de 30 profesionales respaldando su actividad, JURAND Abogados se presenta como una firma multidisciplinar experta en Consultoría Tributaria y que atiende todas y cada una…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSanta Cruz De Tenerife, SpainHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“Bras tax advisors company”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchManacor, SpainHQ recorded Sep 20, 202611-5011 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 · Sep 20, 2026 · View company records in RevenueBase
24Exact matchMadrid, SpainHQ recorded Sep 20, 202611-5010 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 · Sep 20, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 20, 20261-1010 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 · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 358 international tax services based in Spain

See the full list, filter by size, metro and specialty, and access 210 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 Sep 20, 2026
9.0%Verified-email coverage
6.5Average contacts per company
1-10Median size (employees)
19.8%Largest-city concentration · Madrid
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
248
11-50
94
51-200
9
201-500
3
1,001-5,000
1

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 358 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 210 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 20, 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 358 company matches for international tax services associated with 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?

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 71 company records, followed by Barcelona (59) 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 210 professional contacts with verified work emails tracked across these 358 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 20, 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.