Company lists · Data refreshed September 2026

Top 16 Tax outsourcing companies based in Spain

RevenueBase identified 130 company matches for tax outsourcing companies associated with Spain as of September 2026 and tracks 322 professional contacts across them, including 28 with verified work emails. Madrid is the largest hub.

This list covers company matches for tax outsourcing companies 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 21, 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 21, 2026 How this list was built
130Companies
322Contacts tracked
28Verified emails
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The 16 largest tax outsourcing companies based in Spain

Ranked by team size
Top 16 of 130 company matches for tax outsourcing companies based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchPalma De Mallorca, SpainHQ recorded Sep 21, 202611-5012 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchBarcelona, SpainHQ recorded Sep 21, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchBarcelona, SpainHQ recorded Sep 21, 202611-505 contacts →

Exact match

“Firma profesional y altamente especializada en la externalización (outsourcing) de los servicios contable, tax compliance y gestión laboral y RRHH, con oficinas en Barcelona y…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 21, 20261-105 contacts →

Exact match

“EUROACCOUNTS offers a wide range of services: accounting, tax, labour, financial and outsourcing services for small and medium-sized companies and international groups that…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchAlcoy, SpainHQ recorded Sep 21, 202611-504 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchPalma De Mallorca, SpainHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
7Exact matchCabanas, SpainHQ recorded Sep 21, 202611-502 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 · Sep 21, 2026 · View company records in RevenueBase
8Exact matchBarcelona, SpainHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Despacho dedicado al asesoramiento fiscal, contable y auditoría.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLa Pobla De Vallbona, SpainHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Servicios de asesoria contable y fiscal a PYMES.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchDonostia, SpainHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Apóyate en nuestro equipo de profesionales para tus gestiones: Contabilidad, Impuestos de Sociedades, Retenciones, Renta, IVA, y cualquier otra dificultad fiscal o administrativa…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Sep 21, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchTerrassa, SpainHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Servicios de asesoramiento fiscal, contable y financiero para pymes y autónomos.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchBarcelona, SpainHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Gabinet Font nació el 1940 de las manos del señor Joan Font, con la vocación de dar servicio jurídico, laboral, fiscal y contable a empresas y personas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchVic, SpainHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Assessoria fiscal i comptable de Vic especialitzada en empreses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchArganda Del Rey, SpainHQ recorded Sep 21, 20261-101 contacts →

Exact match

“We offer a personalized service in auditing, consulting and taxation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchOviedo, SpainHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Laufer Asesoría nace con la vocación de ayudar a las pequeñas y medianas empresas y a los autónomos en el día a día de su actividad, convirtiendo las obligaciones contables y…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 16 of 130 tax outsourcing companies based in Spain

See the full list, filter by size, metro and specialty, and access 28 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax outsourcing companies based in Spain at a glance

As of Sep 21, 2026
8.7%Verified-email coverage
2.5Average contacts per company
1-10Median size (employees)
15.4%Largest-city concentration · Madrid
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
110
11-50
19

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 130 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 “tax outsourcing companies” 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 28 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 21, 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 outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax outsourcing companies are there based in Spain?

RevenueBase identified 130 company matches for tax outsourcing companies 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?

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

Which city has the most tax outsourcing companies?

Madrid leads with 20 company records, followed by Barcelona (16) and Malaga (4).

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 28 professional contacts with verified work emails tracked across these 130 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 21, 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.