Company lists · Data refreshed September 2026
Top 11 Fraud prevention consulting firms based in Spain
RevenueBase identified 48 fraud prevention consulting firms headquartered in Spain as of September 2026 and tracks 319 professional contacts across them, including 32 with verified work emails and 7 with mobile numbers. Madrid is the largest hub.
This list covers fraud prevention consulting firms 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 September 3, 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.
The 11 largest fraud prevention consulting firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 99 | ||||
“May Business Consulting: tu socio estratégico en transformación, eficiencia y cumplimiento.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 23 | ||||
“Acoru redefines fraud detection by acting before fraud happens.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 19 | ||||
“Ayudamos a las organizaciones a luchar contra el riesgo corporativo.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 18 | ||||
“Opticks provides fraud detection and prevention solutions for leading advertisers and agencies.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 12 | ||||
“En Interafi somos una firma especializada en Auditoria Interna Preventiva, enfocada en fortalecer los sistemas de control, anticipar riesgos y garantizar la integridad del negocio…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5 | ||||
“BONET consulting es una compañía especializada en Cumplimiento Normativo y Prevención Penal.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 4 | ||||
“Durante una larga trayectoria empresarial en el mundo del asesoramiento a empresas, me di cuenta que todas las empresas que se dedicaban al sector de la asesoría o consultoría…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4 | ||||
“Somos una firma de consultores y auditores que ofrecemos servicios a organizaciones en materia de, ó de capitales: Servicios para la implantación de programas y Sistemas de…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1 | ||||
“Empresa especializada en Seguridad de la Información, Protección de Datos y gestión TI.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1 | ||||
“Consultoría en materia de cumplimiento corporativo.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1 | ||||
“INSPECT ITADVISORY PARTNERS SL, presta servicios de consultoría y auditoría de los sistemas de información, así como servicios legales en las áreas de privacidad y protección de…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 11 of 48 fraud prevention consulting firms based in Spain
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Fraud prevention consulting firms based in Spain at a glance
As of Sep 3, 2026Companies by employee count
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 fraud prevention consulting firms, 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: 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
- Companies headquartered in Spain whose own description of what they do matches “fraud prevention consulting firms”. 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 fraud prevention consulting firms, 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. 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, 32 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 3, 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 fraud prevention consulting firms are there based in Spain?
RevenueBase identified 48 fraud prevention consulting firms 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?
MAY Business Consulting Spain By Izertis, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most fraud prevention consulting firms?
Madrid leads with 20 headquartered companies, followed by Barcelona (7) and Palma De Mallorca (2).
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 32 verified decision-maker contacts tracked across these 48 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 3, 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.
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