Company lists · Data refreshed November 2026

Top 25 Dual citizen tax services based in Spain

RevenueBase identified 219 company matches for dual citizen tax services associated with Spain as of November 2026 and tracks 623 professional contacts across them, including 72 with verified work emails. Madrid is the largest hub.

This list covers company matches for dual citizen 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
219Companies
623Contacts tracked
72Verified emails
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The 25 largest dual citizen tax services based in Spain

Ranked by team size
Top 25 of 219 company matches for dual citizen 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, 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact matchSanta Cruz De Tenerife, SpainHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Bras tax advisors company”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Arbex Consultores es un Gabinete Jurídico Tributario con un objetivo claramente definido: transmitir y brindar a todos nuestros clientes tranquilidad, seguridad y garantía en…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Historia y ética profesional Los antecedentes de Asesores y Consultores se remontan al año 1986, con la transformación del Sistema Tributario Español, al incorporar en su nueva…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDenia, SpainHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Ennumera lleva mas de 15 años desarrollando una nueva forma de asesorar a empresas y particulares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Deventer Consulting is an international tax and accounting firm based in Barcelona.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBarcelona, SpainHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Nuestra Firma está centrada en el ámbito de la tributación.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCalviá, SpainHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Professional services in resident/non- resident taxes, accountancy, staff requirements and legal assistance for businesses and private persons.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAlcoy, SpainHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Serteco Economistas es una firma dedicada al asesoramiento de empresas y particulares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlcobendas, SpainHQ recorded Nov 6, 202611-504 contacts →

Exact match

“ASESORES TRIBUTARIOS Contable - Fiscal - Mercantil/Societario - Laboral”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMaó-mahón, SpainHQ recorded Nov 6, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLas Palmas De Gran Canaria, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“El asesoramiento fiscal ha sido, desde nuestros orígenes, uno de los pilares de crecimiento de la firma.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchValencia, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“MOLL Asesores es un despacho de asesoramiento integral de empresas, ubicado en Valencia, que desde su creación hemos trabajado en el ámbito de las Pymes y particulares…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPalma De Mallorca, SpainHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Wir sind eine Steuerberatungsgesellschaft mit Sitz auf den Balearen und verfügen über mehr als 50 Jahre Erfahrung in der Beratung von Unternehmen, Privatpersonen und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCabanas, SpainHQ recorded Nov 6, 202611-503 contacts →

Exact match

“En Asesoría Prego, nos dedicamos a ofrecer servicios de asesoría fiscal, laboral y contable en Narón.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMataró, SpainHQ recorded Nov 6, 20261-103 contacts →

Exact match

“BL Economistes SLP és un despatx d'economistes situat a Mataró propietat de Gabriel Larroca Soliva i Montserrat Barceló.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchColmenar Viejo, SpainHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Asesoramiento fiscal, contable, tributario, laboral y jurídico para empresas y particulares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCastellon, SpainHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Despacho dedicado al asesoramiento fiscal y tributario de empresas y particulares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Nov 6, 20261-102 contacts →

Exact match

“We are a tax advisory firm specialized on the taxation of individuals.”

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

Showing 25 of 219 dual citizen tax services based in Spain

See the full list, filter by size, metro and specialty, and access 72 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Dual citizen tax services based in Spain at a glance

As of Nov 6, 2026
11.6%Verified-email coverage
2.8Average contacts per company
1-10Median size (employees)
15.1%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
172
11-50
40

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 219 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 “dual citizen 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 72 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 “dual citizen tax services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many dual citizen tax services are there based in Spain?

RevenueBase identified 219 company matches for dual citizen 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?

B LAW & TAX tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most dual citizen tax services?

Madrid leads with 33 company records, followed by Barcelona (24) and Valencia (11).

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 72 professional contacts with verified work emails tracked across these 219 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.