Company lists · Data refreshed September 2026

Top 25 Accounting and outsourcing companies based in Madrid, Spain

Name: Accounting and outsourcing companies based in Madrid, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 219 companies tracked

RevenueBase identified 219 accounting and outsourcing companies headquartered in Madrid, Spain as of September 2026 and tracks 3,932 professional contacts across them, including 356 with verified work emails. Madrid is the largest hub.

This list covers accounting and outsourcing companies headquartered in Madrid, Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

219Companies

3,932Contacts tracked

356Verified emails

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The 25 largest accounting and outsourcing companies based in Madrid, Spain

Ranked by team size

Top 25 of 219 accounting and outsourcing companies based in Madrid, Spain, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting and outsourcing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Grant Thornton España	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	501-1,000	890 contacts →
	Indirect evidence “En Grant Thornton España ayudamos a que tu empresa vaya más allá.” Source: RevenueBase Database · checked Sep 22, 2026
2	Cibergestión	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	1,001-5,000	850 contacts →
	Indirect evidence “Nos especializamos en la externalización de servicios a entidades financieras y nos reinventamos continuamente en un mercado cada vez más competitivo para lograr lo más…” Source: RevenueBase Database · checked Sep 22, 2026
3	Qipert	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	501-1,000	278 contacts →
	Indirect evidence “Empresa multi-servicio de activos inmobiliarios y procesos para las entidades financieras, organismos y compañías de todos los sectores.” Source: RevenueBase Database · checked Sep 22, 2026
4	GARSA	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	501-1,000	199 contacts →
	Indirect evidence “Apostamos por la Transformación para adaptarnos y ser flexibles a las necesidades de nuestros clientes y fortalecer cada vez más nuestros mecanismos de seguimiento y trazabilidad…” Source: RevenueBase Database · checked Sep 22, 2026
5	UHY FAY & CO Spain	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	5,001-10,000	109 contacts →
	Indirect evidence “UHY Fay & Co offers multidisciplinary services that include: Audit, Legal, Tax and Labour Advisory, Internationalization of Businesses, Corporate Finance, Consultancy, and…” Source: RevenueBase Database · checked Sep 22, 2026
6	Grupo Gestiona-T	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	66 contacts →
	Indirect evidence “Grupo Gestiona-t is a full-service platform that provides management support to investors, law firms, companies and individuals.” Source: RevenueBase Database · checked Sep 22, 2026
7	B-Kaind	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	56 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
8	Ponter	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	51 contacts →
	Indirect evidence “En Ponter te damos cobertura total para que no tengas que ir a ningún otro sitio.” Source: RevenueBase Database · checked Sep 22, 2026
9	TGS Edisa	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	38 contacts →
	Partial evidence “TGS Edisa is a multidisciplinary firm that since 1988 is providing tax, accounting, legal an labor advisory services and, more recenfly, in fields such as digital consultancy and…” Source: RevenueBase Database · checked Sep 22, 2026
10	Inva BPO	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “Somos una asesoría que proporciona un servicio integral a empresas y profesionales en materia legal, fiscal y contable, laboral, mercantil y financiera.” Source: RevenueBase Database · checked Sep 22, 2026
11	MGI Audicon & Partners	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	36 contacts →
	Indirect evidence “MGI Audicon & Partners is part of the MGI network, a worldwide association of auditing and consulting firms with international and local presence.” Source: RevenueBase Database · checked Sep 22, 2026
12	VÍA Consultores	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	30 contacts →
	Indirect evidence “En VÍA CONSULTORES ofrecemos un servicio integral a empresas y autónomos, buscando generar un impacto positivo en la sociedad a través de la ética, el compromiso de calidad y la…” Source: RevenueBase Database · checked Sep 22, 2026
13	Finout Dirección Financiera Administración Externa Fiscal, Laboral, Contabilidad	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	23 contacts →
	Indirect evidence “En FINOUT trabajamos para nuestros clientes como si fuéramos su departamento financiero-administrativo externo.” Source: RevenueBase Database · checked Sep 22, 2026
14	Grupo GIE	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “Asesoría Integral de Empresas, dedicada al asesoramiento y gestión laboral, contable, fiscal y jurídica de autónomos y PYMES.” Source: RevenueBase Database · checked Sep 22, 2026
15	ISS Profesionalia	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	21 contacts →
	Partial evidence “Information Systems Services (ISS) Profesionalia, is a company that was born 20 Years ago, a consolidated Spanish IT company: Outsourcing and IT Consulting.” Source: RevenueBase Database · checked Sep 22, 2026
16	Gesdocument	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	51-200	19 contacts →
	Indirect evidence “At GD we like to work maximizing our specialism and proximity to the client.” Source: RevenueBase Database · checked Sep 22, 2026
17	Grupo Gimeno	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Grupo Gimeno presta servicios externalizados de auditoría, fiscalidad y asesoramiento laboral, financiero, concurso de acreedores, prevención de blanqueo de capitales y protección…” Source: RevenueBase Database · checked Sep 22, 2026
18	Fisa Auditores	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	13 contacts →
	Indirect evidence “FISA AUDITORES es una compañía de auditoría y consultoría formada por un equipo de profesionales altamente cualificados y con amplia experiencia en auditoría, gestión de empresas…” Source: RevenueBase Database · checked Sep 22, 2026
19	Asesorus	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “Para nosotros, los autónomos y las pymes son lo mejor de nuestra economía.” Source: RevenueBase Database · checked Sep 22, 2026
20	KOANA	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “ASESORÍA INTEGRAL DE EMPRESAS.” Source: RevenueBase Database · checked Sep 22, 2026
21	ADN Gram Audit S.L.P	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “Empresa con más de 30 años de experiencia en el área de Auditoría, Asesoría Fiscal y Consultoría Estratégica ADN GramAudit centra sus esfuerzos en la creación de valor para las…” Source: RevenueBase Database · checked Sep 22, 2026
22	Assemsa Asesores	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “Assemsa ofrece servicio de asesoramiento integral: Asesoría Laboral, Asesoría Contable, Asesoría Fiscal, Asesoría Jurídica, Asesoría Mercantil.” Source: RevenueBase Database · checked Sep 22, 2026
23	Contagesha	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	10 contacts →
	Partial evidence “Contagesha (Contabilidad y Gestión Habana S.L.) is a Madrid-based company specializing in accounting, tax and labour consultancy for small and medium-sized companies…” Source: RevenueBase Database · checked Sep 22, 2026
24	Auditecnic	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Auditecnic es una firma multidisciplinar de servicios profesionales a empresas creada como respuesta a la necesidad de asesoramiento y externalización de las gestiones…” Source: RevenueBase Database · checked Sep 22, 2026
25	Ficesa Treuhand SAP	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “FICESA TREUHAND SAP is a management consulting company based out of CALLE DEL MARQUÉS DEL RISCAL, 11, MADRID, Spain.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: accounting and outsourcing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names accounting and outsourcing companies.
Partial evidence: Its own public description names part of accounting and outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting and outsourcing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 219 accounting and outsourcing companies based in Madrid, Spain

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Accounting and outsourcing companies based in Madrid, Spain at a glance

As of Sep 22, 2026

9.1%Verified-email coverage

18.0Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Madrid

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

136

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 219 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among accounting and outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Madrid, Spain whose own description of what they do matches “accounting and outsourcing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names accounting and outsourcing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among accounting and outsourcing companies, and records with no verified work email. Companies headquartered outside Madrid are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 356 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Accounting and outsourcing companies by metro in Spain

Accounting and outsourcing companies in Madrid219
Accounting and outsourcing companies in Barcelona137
Accounting and outsourcing companies in Valencia34
Accounting and outsourcing companies in Sevilla29
Accounting and outsourcing companies in Malaga26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names accounting and outsourcing companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many accounting and outsourcing companies are there based in Madrid, Spain?

RevenueBase identified 219 accounting and outsourcing companies headquartered in Madrid, Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Grant Thornton España, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most accounting and outsourcing companies?

Madrid leads with 219 headquartered companies, followed by Barcelona (137) and Valencia (34).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 356 verified decision-maker contacts tracked across these 219 companies.

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.

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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 Smart Search, 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.