Company lists · Data refreshed September 2026

Top 25 Tax research and planning firms based in Spain

RevenueBase identified 359 company matches for tax research and planning firms associated with Spain as of September 2026 and tracks 1,299 professional contacts across them, including 126 with verified work emails. Madrid is the largest hub.

This list covers company matches for tax research and planning firms 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 22, 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 22, 2026 How this list was built
359Companies
1,299Contacts tracked
126Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest tax research and planning firms based in Spain

Ranked by team size
Top 25 of 359 company matches for tax research and planning firms based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchSanta Eulària Des Riu, SpainHQ recorded Sep 22, 202651-20036 contacts →

Exact match

“Asesoría Unidad was established in 1973 to meet the demand for accounting, tax, and legal advisory services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Sep 22, 202611-5019 contacts →

Exact match

“Suandco tiene su origen en el despacho fundado en 1951 por Don Francisco Suarez Sotillo, abogado e Inspector de Hacienda.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchGirona, SpainHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
6Exact matchVic, SpainHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“Roca Vilà Jurado Assessors és un despatx multidisciplinari que acumula una experiència de més de vint-i-cinc anys en la prestació de serveis professionals d’assessorament a…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchBarcelona, SpainHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
8Exact matchPalma De Mallorca, SpainHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
9Exact matchGranada, SpainHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
10Exact matchSanta Cruz De Tenerife, SpainHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Bras tax advisors company”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchLeganés, SpainHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Adser Administración y Servicios S.L, comenzó su andadura en 1994.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Sep 22, 202611-5010 contacts →

Exact match

“El origen de ECM Asesores & Consultores se remonta a 2006 con una visión clara de asesoramiento fiscal, laboral, contable, mercantil y consultoría estratégica con el objetivo de…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchBarcelona, SpainHQ recorded Sep 22, 20261-109 contacts →

Exact match

“Descubre nuestros servicios especializados para empresas y autónomos Asesoría Fiscal y Tributaria Asesoramiento fiscal integral para empresas y autónomos.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchBarcelona, SpainHQ recorded Sep 22, 202611-508 contacts →

Exact match

“Somos un despacho especializado en Fiscalidad y Contabilidad, siendo nuestros principales ámbitos de actuación son los siguientes: a- Asesoría tributaria y contable recurrente.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchFuengirola, SpainHQ recorded Sep 22, 20261-107 contacts →

Exact match

“Somos una empresa joven y dinamica, con una gran experiencia en el sector de la Asesoría Fiscal, Laboral y Estrategica En Aventis estamos pendientes de la actualidad, del mercado…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchAlcalá De Henares, SpainHQ recorded Sep 22, 20261-107 contacts →

Exact match

“Despacho especializado en Derecho Tributario formado por profesionales de dilatada experiencia en las áreas de Mercantil, Civil, Societaria y Contable”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Sep 22, 20261-107 contacts →

Exact match

“Despacho de abogados especializados en el asesoramiento tributario y mercantil.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchAlicante, SpainHQ recorded Sep 22, 202611-506 contacts →

Exact match

“En Bande Asesores nos esforzamos día a día en mejorar la gestión y beneficios de su empresa, a través de la optimización fiscal y un estricto control laboral y contable…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchSagunt, SpainHQ recorded Sep 22, 20261-106 contacts →

Exact match

“Somos una asesoría para empresas, autónomos y particulares.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchBarcelona, SpainHQ recorded Sep 22, 20261-106 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchBarcelona, SpainHQ recorded Sep 22, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchGranada, SpainHQ recorded Sep 22, 20261-105 contacts →

Exact match

“Somos un equipo especializado en la asesoría fiscal de empresas, comprometidos con nuestros clientes para encontrar siempre la mejor solución.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchAlcobendas, SpainHQ recorded Sep 22, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchBilbao, SpainHQ recorded Sep 22, 202611-505 contacts →

Exact match

“Planificación fiscal patrimonial y de empresas familiares- Asesoramiento jurídico, fiscal y recurrente de empresas y particulares- Asesoramiento sobre implicaciones tributarias en…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchPalma De Mallorca, SpainHQ recorded Sep 22, 20261-105 contacts →

Exact match

“RFM Asesores Fiscales & Abogados es un despacho especializado en el asesoramiento fiscal, contable y jurídico, cuyos profesionales acumulan más de 20 años de experiencia al más…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 359 tax research and planning firms based in Spain

See the full list, filter by size, metro and specialty, and access 126 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Tax research and planning firms based in Spain at a glance

As of Sep 22, 2026
9.7%Verified-email coverage
3.6Average contacts per company
1-10Median size (employees)
15.9%Largest-city concentration · Madrid
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
271
11-50
79
51-200
7

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 359 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 research and planning 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 126 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 22, 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 research and planning firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax research and planning firms are there based in Spain?

RevenueBase identified 359 company matches for tax research and planning firms 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?

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

Which city has the most tax research and planning firms?

Madrid leads with 57 company records, followed by Barcelona (38) 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 126 professional contacts with verified work emails tracked across these 359 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 359 tax research and planning firms based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

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.