A3Sec
A3Sec is a Spain-headquartered cybersecurity firm providing 24/7 Managed Detection & Response, incident response, and consulting to enterprise clients across financial services, telecommunications, energy, and government sectors, with operations spanning 40+ countries.
- Company typePrivate
- Founded2011
- HeadquartersMadrid, Spain
- Headcount101–250
- GTM typeB2B
- OfferingServices
What A3Sec does
A3sec Grupo S.L. (operating as A3Sec) is a Spain-headquartered, privately held cybersecurity services firm founded in 2011 and headquartered in Madrid, providing Managed Detection & Response, incident response, exposure management, threat intelligence, and cybersecurity consulting to enterprise clients across more than 40 countries. The company serves 270-280+ enterprise customers with a vertically diversified base spanning financial services (BBVA, Liberty Seguros, Mutua Madrileña), telecommunications (Telefonica, Vodafone, Andorra Telecom), energy (Iberdrola), retail (Inditex), media (La Liga), and government/public sector, supported by 150-180+ cybersecurity professionals organized into 8 specialized squadrons operating 24/7 Security Operations Centers.
The core technology stack centers on a unified "Cyber Antifragile Model" methodology, the CSVD (Centro de Seguridad y Vigilancia Digital) Big Data/ML-enabled 24/7 monitoring infrastructure, the proprietary WOCU Monitoring platform (versions 0.33-0.44 released 2019-2021, deployable on-premise, SaaS, or hybrid), and a Cyber Telemetry Engine covering Host, Identity, Cloud, IT/OT, and Network domains. Integrations span Splunk (SIEM), Checkmarx (DevSecOps/SAST), Rapid7 Nexpose (vulnerability management), and Sysdig (cloud-native monitoring). The firm holds a comprehensive certification portfolio including ENS Alta under RD311/2022, ISO 27001, ISO 20000-1, ISO 22301-1, ISO 9001, ISO 27017-2, RNS, and FIRST.org.
A3Sec generates revenue through three streams: managed cybersecurity services (24/7 SOC, MDR, threat monitoring under recurring contracts), professional services (consulting, incident containment, crisis management, security architecture deployment), and technology solutions (WOCU subscription-based licensing). Go-to-market is enterprise-direct sales supplemented by a strategic collaboration with Andersen Consulting (announced March 2026) that provides access to 50,000+ professionals across 1,000+ global locations, with regional offices in Mexico City, Bogotá, and Quito supporting Latin American expansion.
A3Sec firmographics
Firmographics- Name
- A3Sec
- Legal name
- A3sec Grupo S.L.
- Website
- https://a3sec.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- A3Sec is a Spain-headquartered cybersecurity firm providing 24/7 Managed Detection & Response, incident response, and consulting to enterprise clients across financial services, telecommunications, energy, and government sectors, with operations spanning 40+ countries.
- Ownership category
- akta.pro rank
A3Sec industry classification
Industry- Product category
- Managed Cybersecurity Services
- NAICS
- Security Systems Services (except Locksmiths) (561621), Computer Systems Design Services (541512)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Security Operations Center (SOC) as a Service (BPAEADAB)
- akta.pro secondary industry
- Cybersecurity & Identity Consulting (BPAHAEAG)
Keywords
Where A3Sec is headquartered
LocationHeadquarters
- HQ city
- Madrid
- HQ country
- Spain
- HQ region
- Europe
Offices4 records
Markets served
A3Sec business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales
Revenue model
- Managed Cybersecurity Services: 24/7 Security Operations Center services providing continuous monitoring, threat detection, incident response, and managed detection and response (MDR) services to enterprise clients
- Professional Services: Consulting services including exposure management, threat intelligence, incident detection and containment, crisis management and incident response, and cybersecurity architecture deployment
- Technology Solutions: WOCU monitoring platform deployed as on-premise, SaaS, or hybrid solutions with subscription-based licensing
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
A3Sec product offering
Product offeringCore offering
A3Sec provides 24/7 managed cybersecurity services through its Security Operations Center (CSVD), including managed detection and response (MDR), continuous exposure and attack surface management, threat intelligence, incident detection and containment, and crisis management. The firm also delivers professional consulting and deploys its proprietary WOCU Monitoring platform on-premise, as SaaS, or in hybrid mode for enterprise clients across financial services, telecommunications, energy, government, and retail.
Differentiator
Problem solved
Functional benefit
Products and services
- Continuous Exposure and Attack Surface Management
Quantifiable outcome
- 73% improvement in cybersecurity posture within first 3 months
- +2 more outcomes
Companies that use A3Sec
Customer profileNamed customers13 records
Segments6 records
Ideal customer profiles4 records
A3Sec technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature5 records
A3Sec partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Andersen ConsultingcoreA3Sec entered into a collaboration agreement with Andersen Consulting to enhance its cybersecurity and technology transformation service offerings. The partnership enables A3Sec to leverage Andersen's global platform with over 50,000 professionals across more than 1,000 locations to deliver integrated end-to-end professional cybersecurity services to enterprise clients across financial services, telecommunications, energy, government, and other sectors. The collaboration represents A3Sec's primary channel for international expansion through Andersen's established global presence.
Scale indicators8 records
Recent moves6 records
Expansion highlights6 records
A3Sec competitors and assessment
Company assessmentDirect peers
- S2 Grupo: Spanish-headquartered MSSP offering 24/7 SOC, incident response and cyber intelligence to large Spanish and LATAM enterprises. Closely comparable to A3Sec in geography, customer verticals and managed-service-led delivery model.
- Ackcent Cybersecurity: European MSSP providing managed detection and response, threat intelligence and incident response across Europe and LATAM. Competes head-to-head with A3Sec on MDR/SOC services for mid-market and enterprise Spanish-language clients.
- Entelgy Innotec (InnoTec): Spanish cybersecurity subsidiary of Entelgy offering SOC, ethical hacking, threat intelligence and cyber defense. Operates in the same Spanish enterprise market as A3Sec with overlapping certifications and verticals.
- MNEMO: Iberian MSSP delivering managed security, threat hunting and incident response to enterprise and public-sector clients. Direct competitor to A3Sec in Spain and Latin America.
Broad incumbents
- CrowdStrike (Falcon Complete MDR): Global cybersecurity leader whose Falcon Complete offering bundles native EDR/XDR telemetry with a fully managed 24/7 MDR service. Competes with A3Sec for large enterprise MDR mandates, with a substantial product-led cost advantage.
- Palo Alto Networks (Unit 42 MDR): Global cybersecurity platform with Unit 42 managed detection and response services covering endpoints, cloud and identity. Direct large-enterprise competitor to A3Sec in MDR RFPs, backed by native Cortex platform.
- Accenture Security: Global professional services firm delivering managed security at scale including MDR, OT security and GRC. Competes with A3Sec for large multinationals, particularly those deploying end-to-end transformation programmes.
- Deloitte (Cyber Risk Services): Big Four advisory with a large managed security practice spanning SOC, incident response and cyber strategy. Comparable to A3Sec in regulated-industry assurance-led engagements and at the high end of enterprise deals.
Regional players
- Telefónica Tech (Cybersecurity): Telco-operator-owned MSSP with deep presence across Spain and LATAM, offering managed SOC and cyber intelligence. Competes directly with A3Sec for Spanish telco and enterprise security contracts.
Emerging players
- Netskope MDR / eSentire: Pure-play MDR providers extending beyond EDR/XDR into cloud, identity and SaaS telemetry. Comparable to A3Sec in positioning as best-of-breed MSSPs in a market consolidating toward platform vendors.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks5 records
Key highlights6 records
Customer concentration
A3Sec social profiles
Digital presenceA3Sec financial estimates
Financial estimateRevenue estimate
Valuation estimate
A3Sec leadership team
Management profileNumber of profiles
Profiles5 records
A3Sec funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
A3Sec M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about A3Sec
What does A3Sec do?
A3Sec provides 24/7 managed cybersecurity services through its Security Operations Center (CSVD), including managed detection and response (MDR), continuous exposure and attack surface management, threat intelligence, incident detection and containment, and crisis management. The firm also delivers professional consulting and deploys its proprietary WOCU Monitoring platform on-premise, as SaaS, or in hybrid mode for enterprise clients across financial services, telecommunications, energy, government, and retail.
Is A3Sec a public or private company?
A3Sec is a private company. It is classified as unknown and is currently operating.
When was A3Sec founded?
A3Sec was founded in 2011. It employs 101 to 250 people.
Where is A3Sec based?
A3Sec is headquartered in Madrid, Spain, in the Europe region.
How does A3Sec make money?
Three revenue lines are on record. Managed Cybersecurity Services are the primary driver. The others are professional Services and technology Solutions.
Who are A3Sec's main competitors?
Direct peers on record are S2 Grupo, Ackcent Cybersecurity, Entelgy Innotec (InnoTec) and MNEMO. Broad incumbents are CrowdStrike (Falcon Complete MDR), Palo Alto Networks (Unit 42 MDR), Accenture Security and Deloitte (Cyber Risk Services). Telefónica Tech (Cybersecurity) is listed as a regional player. Netskope MDR / eSentire is listed as an emerging player.
Does A3Sec have an API?
No public API is recorded for A3Sec.
What industry is A3Sec in?
A3Sec's product category is Managed Cybersecurity Services. Its primary akta.pro industry code is BPAEADAB, Security Operations Center (SOC) as a Service, with a secondary code of BPAHAEAG, Cybersecurity & Identity Consulting. Its NAICS code is 561621 and its SIC code is 7370.