KnowBe4
TrainingSecurity awareness training and simulated phishing.
Clearwater, US· 1000+ people
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Zscaler
Product vendorCloud-delivered ZTNA, SWG, and SSE for the internet-first workplace.
San Jose, US· 1000+ people
SentinelOne
Product vendorAutonomous EDR and XDR for endpoints, identity, and cloud workloads.
Mountain View, US· 1000+ people
Varonis
Product vendorData security platform for identity, activity, and classification on unstructured data.
New York, US· 1000+ people
Okta
Product vendorWorkforce and customer identity for SSO, MFA, and lifecycle.
San Francisco, US· 1000+ people
CyberArk
Product vendorPrivileged access, secrets, and machine identity.
Newton, US· 1000+ people
Arctic Wolf
MSSP / managedManaged detection and response as a subscription.
Eden Prairie, US· 1000+ people
Tenable
Product vendorExposure management and vulnerability scanning across IT, cloud, and OT.
Columbia, US· 1000+ people
Rapid7
Product vendorSIEM, vulnerability management, and detection from InsightVM and InsightIDR.
Boston, US· 1000+ people
Claroty
Product vendorCyber-physical and OT security for industrial and healthcare networks.
New York, US· 500-999 people
Dragos
Product vendorIndustrial threat intel and OT detection.
Hanover, US· 500-999 people
Semgrep
Product vendorOpen-source SAST and a commercial code security platform.
Detroit, US· 50-249 people
Trail of Bits
Consultancy / pentestHigh-assurance security engineering, audits, and research.
New York, US· 50-249 people
Bishop Fox
Consultancy / pentestOffensive security consultancy and Cosmos continuous pentest.
Phoenix, US· 250-499 people
Netskope
Product vendorSSE, CASB, and data protection delivered from a security cloud.
Santa Clara, US· 1000+ people
SecurityScorecard
Product vendorSecurity ratings and vendor-risk monitoring.
New York, US· 500-999 people
Wiz
Product vendorCloud security graph for code-to-cloud risk.
New York, US· 1000+ people
Censys
Research / intelInternet-wide attack surface and exposure intelligence.
Ann Arbor, US· 250-499 people
Aqua Security
Product vendorCloud-native application protection from code to runtime.
Boston, US· 500-999 people
Offensive Security
TrainingOSCP, Kali Linux, and hands-on offensive training.
New York, US· 250-499 people
Cloudflare
Product vendorCDN, WAF, Zero Trust, and bot management on a global edge.
San Francisco, US· 1000+ people
Microsoft Security
Product vendorDefender, Entra, Sentinel, and Purview across the Microsoft estate.
Redmond, US· 1000+ people
Cisco Security
Product vendorNetwork, email, and SASE security from the campus to the cloud.
San Jose, US· 1000+ people
Qualys
Product vendorVMDR, cloud posture, and compliance scanning as a service.
Foster City, US· 1000+ people