Company lists · Data refreshed September 2026
Top 25 Auditing companies based in Spain
RevenueBase identified 318 auditing companies headquartered in Spain as of September 2026 and tracks 2,460 professional contacts across them, including 207 with verified work emails. Madrid is the largest hub.
This list covers auditing companies headquartered in 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 21, 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.
The 25 largest auditing companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 260 contacts → | ||||
Indirect evidence “Iberaudit Kreston es una firma profesional, con presencia en España, Portugal y Andorra, que cuenta con una larga trayectoria profesional en el sector de la auditoría y la…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 85 contacts → | ||||
Indirect evidence “Firma líder en servicios de Auditoría y Consultoría, con más de 25 años de experiencia, asumiendo una reconocida especialización en los sectores público y hospitalario, y…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 68 contacts → | ||||
Indirect evidence “El Instituto de Censores Jurados de Cuentas de España (ICJCE), creado en 1942, es una institución privada con personalidad jurídica propia y plena capacidad para el cumplimiento…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 61 contacts → | ||||
Indirect evidence “Servicios de Auditoría y Consultoría.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 54 contacts → | ||||
Indirect evidence “Empresa de servicios profesionales especializada en auditoría, servicios de aseguramiento y consultoría.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 41 contacts → | ||||
Indirect evidence “VIR AUDIT es una firma multidisciplinar que presta servicios de auditoría, consultoría y finanzas corporativas ofreciendo una amplia gama de servicios profesionales en estos…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 40 contacts → | ||||
Indirect evidence “LKS AUDITORES SLP is an accounting company based out of POLIG BASABE BLE PTL0 2º DC, ARETXABALETA, Spain.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 38 contacts → | ||||
Indirect evidence “UNIAUDIT OLIVER CAMPS es una firma nacional de auditoría y consultoría que nace de la unión de Uniaudit JRP y Oliver Camps, firmas con más de 40 años de experiencia en las…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 36 contacts → | ||||
Indirect evidence “GNC se constituye como firma de auditoría de sector público con personal con una larga y dilatada trayectoria profesional.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 36 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “Expertos en consultoría, asesoría y auditoría para todo tipo de empresas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 contacts → | ||||
Indirect evidence “GRUPO DE AUDITORES PÚBLICOS es el resultado de la unión de diferentes profesionales con el objetivo de proporcionar un servicio uniforme y de alto valor añadido en los sectores de…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 30 contacts → | ||||
Indirect evidence “LEGITEC es una organización de ámbito nacional, fundada e impulsada por varias empresas especializadas en ofrecer servicios relacionados con el cumplimiento normativo y…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Indirect evidence “pleta auditores es una firma nacional que ofrece a la empresa privada y pública servicios de auditoría y consultoría.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 27 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 27 contacts → | ||||
Indirect evidence “Auditores y Consultores del Sur, S.L.P.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 25 contacts → | ||||
Indirect evidence “CET Auditores, S.L.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 23 contacts → | ||||
Indirect evidence “FORWARD ECONOMICS SLP, es un despacho profesional fundado en el año 1991 y dedicado exclusivamente a la auditoría de cuentas, ya sea en su vertiente de Cuentas Anuales o de…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 22 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Indirect evidence “ACFYD ANÁLISIS` expertise is based on performing internal audits in leading companies in Spain for more than 10 years now.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “El Consejo Superior representa, por medio de su Registro General de Auditores (REGA), a la mayor parte de las pymes de auditoría y auditores individuales de España.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Indirect evidence “CGM AUDITORES SL is an accounting company based in Zaragoza, Spain.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Indirect evidence “Blázquez i Planas Assessoria: Your Partner in Excellence and Business Advisory Since our founding in 1988, Blázquez i Planas Assessoria has positioned itself as a leading firm in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: auditing 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 auditing companies.
- Partial evidence
- Its own public description names part of auditing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name auditing 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 318 auditing companies based in Spain
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Auditing companies based in Spain at a glance
As of Sep 21, 2026Companies by employee count
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 318 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 auditing 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 Spain whose own description of what they do matches “auditing 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 auditing 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 auditing companies, and records with no verified work email. Companies headquartered outside Spain 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, 207 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 21, 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.
Auditing companies by metro
- Auditing companies in Madrid60
- Auditing companies in Barcelona55
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 auditing 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 auditing companies are there based in Spain?
RevenueBase identified 318 auditing companies headquartered in 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?
Kreston Iberaudit, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most auditing companies?
Madrid leads with 60 headquartered companies, followed by Barcelona (55) and Sevilla (15).
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 207 verified decision-maker contacts tracked across these 318 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 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 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.
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