Company lists · Data refreshed August 2026

Top 25 Accounting firms for international nonprofits based in Spain

Name: Accounting firms for international nonprofits based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 553 companies tracked

There are 553 accounting firms for international nonprofits headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 4,695 professional contacts across them, including 378 with verified work emails and 33 with mobile numbers. Madrid is the largest hub.

This list covers accounting firms for international nonprofits 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, how directly it supports the match, and when it was last checked. Data refreshed August 30, 2026.

553Companies

4,695Contacts tracked

378Verified emails

33Mobile numbers

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The 25 largest accounting firms for international nonprofits based in Spain

Ranked by team size

Top 25 of 553 accounting firms for international nonprofits based in Spain, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting firms for international nonprofits: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Bové Montero Y AsociadosPartial evidence “Bové Montero was founded in 1978 as one of the pioneering firms in Spain in the fields of audit, consulting, and accounting, tax, and labour advisory services.” Source: company website · checked Aug 30, 2026	Madrid, Spain	51-200	145	39
2	Faura-Casas, Auditors-Consultors, SLIndirect 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: company website · checked Aug 30, 2026	Madrid, Spain	51-200	85	20
3	VacieroIndirect evidence “Vaciero es una firma profesional de servicios jurídicos, financieros y de auditoría para empresas e instituciones, con más de 30 años de experiencia.” Source: company website · checked Aug 30, 2026	Oviedo, Spain	51-200	62	14
4	EuditaIndirect evidence “Servicios de Auditoría y Consultoría.” Source: company website · checked Aug 30, 2026	Oviedo, Spain	501-1,000	61	6
5	PBS By AdlanterStrong evidence “PBS is an independent firm with an international focus specialized in the rendering of management and advisory services in accounting, labour matters and tax compliance.” Source: company website · checked Aug 30, 2026	Barcelona, Spain	11-50	53	14
6	Galán AsociadosIndirect evidence “GALÁN & ASOCIADOS CONSULTORES es una firma multidisciplinar especializada en Consultoría, Auditoría y Asesoría Fiscal, Mercantil, Laboral y Contable, que desde el año 1984 presta…” Source: company website · checked Aug 30, 2026	Albacete, Spain	51-200	46	6
7	VIR AuditIndirect 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: company website · checked Aug 30, 2026	Barcelona, Spain	51-200	41	6
8	Asesoría UnidadPartial evidence “Asesoría Unidad was established in 1973 to meet the demand for accounting, tax, and legal advisory services.” Source: company website · checked Aug 30, 2026	Santa Eularia Des Riu, Spain	51-200	36	21
9	MGI Audicon & PartnersPartial evidence “MGI Audicon & Partners is part of the MGI network, a worldwide association of auditing and consulting firms with international and local presence.” Source: company website · checked Aug 30, 2026	Valencia, Spain	51-200	36	1
10	Cortés & Pérez Auditores Y Asesores Asociados, S.LIndirect evidence “CORTÉS, PÉREZ & CÍA.” Source: company website · checked Aug 30, 2026	Barcelona, Spain	51-200	32	3
11	LeialtaIndirect evidence “LEIALTA is a business consulting firm that supports companies in their key decisions, combining strategy, compliance and close advisory.” Source: company website · checked Aug 30, 2026	Madrid, Spain	11-50	25	6
12	Asesores Empresariales Asociados, S.LIndirect evidence “Servicios de consultoría de empresas, asesoramiento fiscal, contable y laboral, auditoría, asesoramiento financiero, creación de empresas.” Source: company website · checked Aug 30, 2026	Merida, Spain	11-50	23	1
13	Grup GestióIndirect evidence “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.” Source: company website · checked Aug 30, 2026	Sant Feliu De Guixols, Spain	51-200	18	2
14	Mazars EspañaIndirect evidence “Somos una firma internacional de auditoría, consultoría y asesoramiento legal y fiscal.” Source: company website · checked Aug 30, 2026	Barcelona, Spain	501-1,000	16	1
15	Blázquez I Planas AssessoriaIndirect 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: company website · checked Aug 30, 2026	Barcelona, Spain	11-50	16	1
16	Gabinete Técnico DE Auditoría Y Consultoría, SAIndirect evidence “Gabinete Técnico de Auditoría y Consultoría es una firma constituida en 1989 en Barcelona.” Source: company website · checked Aug 30, 2026	Barcelona, Spain	11-50	13	5
17	CastellàPartial evidence “We are a team of professionals with a proven track record of over 60 years in tax, business, auditing, accounting, employment and legal services.” Source: company website · checked Aug 30, 2026	Esplugues De Llobregat, Spain	11-50	12	4
18	ADN Gram Audit S.L.PIndirect 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: company website · checked Aug 30, 2026	Madrid, Spain	11-50	11	2
19	ECM Asesores & ConsultoresIndirect evidence “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…” Source: company website · checked Aug 30, 2026	Albacete, Spain	11-50	10	1
20	Alesco Partners SLPIndirect evidence “Alesco Partners SLP es una firma de servicios profesionales relacionados fundamentalmente con la auditoría de cuentas y otros servicios de verificación contable, el asesoramiento…” Source: company website · checked Aug 30, 2026	Madrid, Spain	11-50	8	1
21	PS Tributacion Y Finanzas SLIndirect evidence “PS Tributación y Finanzas es un despacho profesional dirigido por un grupo de economistas y abogados con dilatada experiencia en asesoramiento fiscal, contable, financiero y legal…” Source: company website · checked Aug 30, 2026	Vigo, Spain	11-50	6	1
22	Pont Mestres & Auditores Asociados, S.AIndirect evidence “Pont Mestres & Auditores Asociados es una firma dedicada a los servicios de Auditoría desde hace más de 30 años.” Source: company website · checked Aug 30, 2026	Tarragona, Spain	11-50	6	1
23	Deventer ConsultingStrong evidence “Deventer Consulting is an international tax and accounting firm based in Barcelona.” Source: company website · checked Aug 30, 2026	Barcelona, Spain	11-50	5	3
24	Telenti AsesoresIndirect evidence “Este despacho profesional de asesoría tiene su origen con la implantación en el año 1969 de sus primeras instalaciones en Avilés.” Source: company website · checked Aug 30, 2026	Aviles, Spain	11-50	5	1
25	Serteco EconomistasIndirect evidence “Serteco Economistas es una firma dedicada al asesoramiento de empresas y particulares.” Source: company website · checked Aug 30, 2026	Alcoy, Spain	11-50	4	1

Showing 25 of 553 accounting firms for international nonprofits based in Spain

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Accounting firms for international nonprofits based in Spain at a glance

As of Aug 30, 2026

1-10Median size (employees)

MadridLargest hub · 95 HQs

33Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

340

11-50

185

51-200

201-500

501-1,000

1,001-5,000

Accounting firms for international nonprofits by metro

Metro	Companies
Accounting firms for international nonprofits in Madrid	95
Accounting firms for international nonprofits in Barcelona	77
Accounting firms for international nonprofits in Valencia	28
Accounting firms for international nonprofits in Malaga	18
Accounting firms for international nonprofits in Sevilla	14
Accounting firms for international nonprofits in Zaragoza	13
Accounting firms for international nonprofits in Santa Cruz De Tenerife	11

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 firms for international nonprofits, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “accounting firms for international nonprofits”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among accounting firms for international nonprofits, 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 an evidence rating so you can judge each match yourself.
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, 378 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 August 30, 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.

Frequently asked

How many accounting firms for international nonprofits are there based in Spain?

There are 553 accounting firms for international nonprofits headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Bové Montero Y Asociados, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most accounting firms for international nonprofits?

Madrid leads with 95 headquartered companies, followed by Barcelona (77) and Valencia (28).

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 378 verified decision-maker contacts tracked across these 553 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.