Public cybersecurity companies

Microsoft sells software, cloud services, hardware, and gaming products.

Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats.

Fortinet provides cybersecurity solutions and services, including networking and security convergence, for enterprises and governments.

Test equipment maker whose device security lab, built on Riscure, tests chips, cards and vehicle electronics against side-channel and fault-injection attacks.

OpenText provides software and services for managing information across an organisation.

CrowdStrike provides AI-native cybersecurity solutions to stop breaches.

Zscaler provides a cloud-native zero trust cybersecurity platform that securely connects users, devices, and applications.

F5 provides application delivery and security solutions for hybrid multicloud environments.

Global testing and certification firm, recognised by the PCI SSC for PTS POI and HSM evaluation, with labs in the UK and China.

Okta provides cloud-based identity and access management solutions for workforce and customer identities.

Check Point Software provides cyber security solutions including network, cloud, and AI security.

Cloudflare provides a global network for security, performance, and full-stack development.

Elastic provides the Elasticsearch Platform, which includes search, observability, and security solutions.

Commvault provides a cloud-native platform for data security, identity resilience, and cyber recovery.

SailPoint provides identity governance and security software for human, machine, and AI identities.

SentinelOne provides an AI-native cybersecurity platform for endpoint, identity, and cloud protection.

Tenable provides an exposure management platform that unifies security visibility, insight, and action across the attack surface.

Rapid7 provides AI-powered managed cybersecurity operations, including MDR, SIEM, and vulnerability management.

NETSCOUT provides real-time network visibility, observability, cybersecurity, and DDoS protection solutions.

Netskope provides cloud security and networking services for organisations.

Chip IP company licensing automotive-grade hardware security modules, MACsec engines and key provisioning for vehicle chips.

Qualys provides an enterprise cyber risk and security platform.

Fastly provides an edge cloud platform that helps businesses deliver, secure, and deploy applications and AI workloads.

Varonis provides data security software that protects data across cloud, SaaS and on-premises environments.

N-able provides cybersecurity and IT management software for managed service providers and businesses.

A10 Networks provides secure, high-performance networking solutions for applications and AI workloads.

OneSpan provides authentication, fraud prevention, and eSignature solutions for digital agreements and transactions.

Allot provides network intelligence and security solutions for service providers and enterprises.

BIO-key provides identity and access management solutions with biometric authentication for enterprises and organisations.

IBM is a technology company that sells software, infrastructure, and consulting services.

Global cybersecurity consultancy with CREST, CHECK, and CBEST accreditation, renowned for deep technical research and penetration testing services.

Sectra provides medical imaging IT and cybersecurity solutions for healthcare and critical infrastructure.

Clavister is a Swedish cybersecurity company that develops, tests and supports all its technology in Sweden.

Corero Network Security provides automatic DDoS protection for businesses and service providers.

Cybertrust is a Japanese company that provides trust services and security products.

Korean supplier of ECU security software, security gateways, TARA, testing and R155 and 21434 consulting.

Testing and certification group that helps vehicle makers and suppliers work towards ISO/SAE 21434 compliance.

Riskified provides AI-powered fraud prevention and chargeback protection for ecommerce merchants.

Trend Micro provides cybersecurity products and services for businesses and individuals worldwide.

Korean supplier of in-vehicle security software, V2X and Plug&Charge PKI, security testing tools and R155 consulting.

Swiss testing and certification group offering security evaluations, penetration tests and ISO/SAE 21434 audits.