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Top 25 Best Companies in Spain

Discover the most renowned companies in Spain, ranked by Rankiteo's proprietary cyber resilience scoring methodology. 427 companies scored.

1,181
Companies in Spain
427
Scored
758.5
Avg Score
32
Cyber Incidents
Top 25
Shown

Spain Cybersecurity Rankings - Best Companies in 2026

Spain is home to 1,181 companies that Rankiteo actively monitors for cybersecurity resilience. This page presents the Top 25 highest-scoring organizations, ranked by our proprietary Cyber Resilience Score - a composite metric that integrates time-decayed incident exposure, sector-sensitive impact analysis, and market-cap-aware baseline and dampening to produce a single, interpretable score between 100 and 1,000.

Companies at the top of this ranking have the fewest and least-severe recorded cyber incidents - including ransomware attacks, data breaches, and publicly disclosed vulnerabilities. Their scores benefit from clean or near-clean incident histories, favorable industry-level resilience adjustments, and, where applicable, scale-aware baseline anchoring. These organizations serve as benchmarks for what strong cybersecurity posture looks like among the most prominent companies in Spain.

The average cyber resilience score for the most notable companies in Spain is currently 758.5 out of 1,000, placing the country in the Ba-Baa range - adequate but with room for improvement.

Key Insights

845
Highest Score
758.5
Country Average
2%
Scoring A or Above
32
Recorded Incidents

Score Distribution

Aaa
0 (0.0%)
Aa
0 (0.0%)
A
9 (2.1%)
Baa
371 (86.9%)
Ba
39 (9.1%)
B
4 (0.9%)
Caa
3 (0.7%)
Ca
1 (0.2%)
C
0 (0.0%)
#CompanyLabelScoreBandIncidentsScore Bar
1
ACI Energy Storagewplgroup.com
Others845A0
2
Vall d'Hebron Institute of Oncology (VHIO)vhio.net
-845A0
3
Grifols Biopharmahttps://www.biosuppliesproducts.com/en/home
Others844A0
4
BBVAbbva.com
Commercial Banking827A0
5
Mercadonaavature.net
Retail Trade821A0
6
El Corte Ingléselcorteingles.es
Retail Trade816A0
7
Atentoatento.com
Others808A0
8
Aenaaena.es
Air Transportation807A0
9
Universidad Complutense de Madriducm.es
Colleges, Universities, and Professional Schools807A0
10
Siemens Gamesasiemensgamesa.com
Semiconductor and Other Electronic Component Manufacturing798Baa0
11
Barcelo Hotel Groupbrclo.com
Traveler Accommodation796Baa0
12
Minsaitminsait.com
Computer Systems Design and Related Services790Baa0
13
Quirónsaludquironsalud.es
Fitness and Recreational Sports Centers790Baa0
14
Loeweloewe.com
Jewelry, Luggage, and Leather Goods Stores789Baa0
15
Santossantos.es
Furniture and Related Product Manufacturing789Baa0
16
ACCIONAacciona.com
Utilities788Baa0
17
Amadeusamadeus.com
Computer Systems Design and Related Services788Baa1
18
Sanitassanitas.es
Fitness and Recreational Sports Centers788Baa0
19
Comunidad de Madridcomunidad.madrid
Public Administration787Baa0
20
Telepizzatelepizza.es
Traveler Accommodation786Baa0
21
Bershkabershka.com
Clothing and Clothing Accessories Stores785Baa0
22
Novanovatalent.com
Others785Baa0
23
Kids&Us Language Schoolkidsandus.com
Educational Services784Baa0
24
Ayesaayesa.com
Management, Scientific, and Technical Consulting Services783Baa0
25
Eurostars Hotel Companyeurostarshotels.com
Traveler Accommodation783Baa0

How We Score Companies in Spain

Rankiteo's Cyber Resilience Score produces a single, interpretable value between 100 and 1,000 for each organization, where higher scores indicate lower estimated cyber risk. The framework integrates three principal components that together balance evidence, context, and comparability across industries and company sizes. Learn more in our AI Cyber Score methodology.

Understanding the Bands

Each company's numerical score is also mapped to a letter-grade band for quick comparison. Here is what each band means for companies in Spain:

  • Aaa (900-1,000): Exceptional cyber resilience. Top-tier security across all measured dimensions.
  • Aa (800-899): Very strong posture with minimal identifiable weaknesses.
  • A (700-799): Strong security practices with some areas for improvement.
  • Baa (600-699): Adequate protection, but notable gaps in security configuration exist.
  • Ba (500-599): Below average. Multiple risk areas require attention.
  • B (400-499): Weak security posture with significant exposure across several categories.
  • Caa (300-399): Very weak. High probability of exploitable vulnerabilities.
  • Ca (200-299): Critically poor security with severe, widespread gaps.
  • C (0-199): Extreme risk. Immediate remediation needed across the board.

Why Spain Cybersecurity Matters

As digital transformation accelerates, organizations in Spain handle growing volumes of sensitive data - from customer records and financial information to proprietary intellectual property. A breach affecting prominent companies in Spain can lead to regulatory penalties, reputational damage, operational disruption, and loss of customer trust.

Rankiteo tracks 1,181 companies in Spain, updating scores on a continuous basis so you always have the latest view of the country's cybersecurity landscape.