Cybersecurity Companies

Leading managed detection and response (MDR) provider delivering security operations as a concierge service, with the 2025 acquisition of Cylance expanding endpoint AI capabilities.

Networking and cybersecurity giant that acquired Splunk for $28 billion, combining enterprise networking, SIEM, XDR, and threat intelligence into a unified security platform.

The leading privileged access management and identity security company, subject to a pending $25 billion acquisition by Palo Alto Networks.

The largest standalone DSPM company, providing AI-driven data security posture management, classification, and data loss prevention across cloud, SaaS, and on-premises environments.

The world's premier threat intelligence and incident response organization, now part of Google Cloud, known for nation-state attribution, breach investigations, and the Mandiant Advantage platform.

The world's largest cybersecurity vendor by revenue, offering an integrated security portfolio spanning endpoint, identity, SIEM, cloud security, and data protection across enterprise and cloud environments.

Security Service Edge and SASE leader providing cloud-native CASB, ZTNA, SWG, and data protection for the modern enterprise.

The leading email security and human-centric cybersecurity company, protecting organizations from phishing, business email compromise, and data loss through email, cloud, and security awareness solutions.

Cyber resilience and data security company providing zero trust data protection, ransomware recovery, and data governance across enterprise, cloud, and SaaS environments.

The leading identity governance and administration platform, enabling enterprises to manage, control, and audit access across cloud and on-premises environments.

Mid-market cybersecurity leader providing managed detection and response, endpoint security, and network security, strengthened by the 2025 acquisition of Secureworks.

XDR and enterprise security platform formed from the merger of McAfee Enterprise and FireEye Products, providing endpoint, email, network, and data security.