Company lists · Data refreshed November 2026

Top 25 Accounting firm business process outsourcing companies based in Spain

RevenueBase identified 542 company matches for accounting firm business process outsourcing companies associated with Spain as of November 2026 and tracks 6,909 professional contacts across them, including 978 with verified work emails. Madrid is the largest hub.

This list covers company matches for accounting firm business process 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 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
542Companies
6,909Contacts tracked
978Verified emails
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The 25 largest accounting firm business process outsourcing companies based in Spain

Ranked by team size
Top 25 of 542 company matches for accounting firm business process outsourcing companies 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, 20261,001-5,0001,000 contacts →

Exact match

“BDO es una de las mayores firmas globales de servicios profesionales.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000913 contacts →

Exact match

“En Grant Thornton España ayudamos a que tu empresa vaya más allá.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000462 contacts →

Exact match

“Tessi IBERIA nace en 1.997 y aunque en el inicio se centra en la gestión hipotecaria, ya desde sus orígenes nace con unos valores fundamentales, que todavía hoy perviven, y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000305 contacts →

Exact match

“Empresa multi-servicio de activos inmobiliarios y procesos para las entidades financieras, organismos y compañías de todos los sectores.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMálaga, SpainHQ recorded Nov 6, 2026501-1,000206 contacts →

Exact match

“Bukit BPO es una compañía internacional dedicada al negocio del Business Process Outsourcing y que actúa como partner tecnológico y operacional para clientes de todo el mundo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBarcelona, SpainHQ recorded Nov 6, 2026201-500201 contacts →

Exact match

“En Talenom te ofrecemos servicios de asesoría contable, laboral y legal para que gestiones tu empresa de manera integral y con la tranquilidad de tener a un equipo de expertos a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500159 contacts →

Exact match

“Russell Bedford es una Firma de servicios profesionales de referencia a nivel global, que presta asesoramiento multidisciplinar desde 1983.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Empezamos siendo dos hermanos con un manual de contabilidad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5085 contacts →

Exact match

“ECIJA Advisory es la unidad de negocio del Grupo ECIJA dirigida a resolver las necesidades de Financial Advisory, BPO y Public Sector de las empresas y las instituciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Somos una firma multidisciplinar, con más de 35 años de experiencia, especializados en la gestión y externalización de procesos de negocio financieros, recursos humanos, gestión…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5059 contacts →

Exact match

“Empresa de servicios profesionales especializada en auditoría, servicios de aseguramiento y consultoría.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“Gemini Recoveries & Collections, a company, with expertise on full servicing (BPO) solutions covering the entire credit cycle: adquisition, loyalty programs, credit risk…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAlicante, SpainHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“GALÁN & ASOCIADOS CONSULTORES es una firma multidisciplinar especializada en Consultoría, Auditoría y Asesoría Fiscal, Mercantil, Laboral y Contable, que desde el año 1984 presta…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“o Advisory Group - Business Advisory Group Tax Accounting Employment Trade o Consultancy - Business Consultancy Viability plans Mergers and acquisitions Family business Strategic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGijón, SpainHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Nos dedicamos a la externalización de procesos de negocio y estamos especializados en los relacionados con la atención y gestión del cliente.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“VIR AUDIT es una firma multidisciplinar que presta servicios de auditoría, consultoría y finanzas corporativas ofreciendo una amplia gama de servicios profesionales en estos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPinto, SpainHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Fundada en 1990.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“BJS Legal Services - Collections & BPO, permite a sus clientes centrarse en su Core Business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGranada, SpainHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“ABA Consultores y Auditores de Cuentas se constituye para asesorar y representar a nuestros clientes, con la mayor eficiencia y agilidad en las áreas de Auditoría de Cuentas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Munt Audit & Forensic es una firma de servicios profesionales, con presencia en España y Andorra, que cuenta con una larga trayectoria profesional en el Sector de Forensic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchVigo, SpainHQ recorded Nov 6, 20261-1025 contacts →

Exact match

“The company We are a professional services firm founded in 1984 which aims to provide an efficient service backed by the expertise of its members.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSantiago De Compostela, SpainHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Auditores, Consultores y Expertos Independientes S.L.P.(Audicon) es una empresa que surge en el año como resultado de la unión de una serie de profesionales con gran experiencia…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“En Audiconsulting te ofrecemos máxima calidad, amplia experiencia y la confianza de una respuesta inmediata.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSeville, SpainHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Netadia Europa es una firma de auditoría que se identifica con el rigor de un servicio excelente y la cercanía de entender a nuestros clientes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchValencia, SpainHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Somos un despacho profesional que desde hace más de 30 años nos dedicamos a ayudar a personas a desarrollar sus proyectos profesionales y empresariales, prestando servicios de…”

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

Showing 25 of 542 accounting firm business process outsourcing companies based in Spain

See the full list, filter by size, metro and specialty, and access 978 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting firm business process outsourcing companies based in Spain at a glance

As of Nov 6, 2026
14.2%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
19.7%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
339
11-50
152
51-200
26
201-500
9
501-1,000
6
1,001-5,000
3
10001+
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 542 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 “accounting firm business process 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 978 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 “accounting firm business process outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting firm business process outsourcing companies are there based in Spain?

RevenueBase identified 542 company matches for accounting firm business process outsourcing companies 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?

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

Which city has the most accounting firm business process outsourcing companies?

Madrid leads with 107 company records, followed by Barcelona (72) and Seville (23).

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 978 professional contacts with verified work emails tracked across these 542 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.