| Vulnerability Notification Service |
| Archer Threat Management | Archer Technologies | Threat Management | United States | |
| Cassandra | CERIAS/Purdue University | Profiled Search Tool of Vulnerability Database | United States | |
| Cisco Security IntelliShield Alert Manager | Cisco Systems | Security Intelligense Service | United States | |
| CSI | LEXSI | Vulnerability Database and Notification Service | France | |
| Debian Security Advisories | Software in the Public Interest, Inc. | Advisories | United States | |
| DeepSight Alert Services | Symantec | Vulnerability Alerting Service and Database | United States | |
| DragonSoft Vulnerability Database | DragonSoft Security Associates, Inc. | Online Vulnerabilities and Exposures Database | Taiwan | |
| Foresight | Cubico Solutions CC | Continuous Risk Analysis Solution | South Africa | |
| FrSIRT Vulnerability Notification Service | French Security Incident Response Team (FrSIRT) | Vulnerability and Exploit Tracking and Alerting Service | France | |
| )pallas( | scip AG | Vulnerability Consulting Service | Switzerland | |
| PatchAdvisor Alert! | PatchAdvisor, Inc. | Patch Management Vulnerability Notification Service and Database | United States | |
| PatchAdvisor Flash! | PatchAdvisor, Inc. | Patch Management Vulnerability Notification Service for Small Businesses | United States | |
| PatchAdvisor Source | PatchAdvisor, Inc. | Historical and Current Patch Management Vulnerability Notification Service in XML Format | United States | |
| Secunia Enterprise Security Manager | Secunia | Enterprise Tool for Tracking, Mapping, and Managing Vulnerabilities in Corporate Networks | Denmark | |
| Secunia Enterprise Security Manager - Server Edition | Secunia | Enterprise Tool for Tracking, Mapping, and Managing Vulnerabilities in Corporate Servers | Denmark | |
| Secunia Security Manager | Secunia | Tool for Tracking, Mapping, and Managing Vulnerabilities in Corporate Networks | Denmark | |
| Secunia Vulnerability Tracking Service - Enterprise Edition | Secunia | Enterprise Service for Tracking, Mapping, and Managing Vulnerabilities in Corporate Networks | Denmark | |
| Security Announcement Service RUS-CERT | RUS-CERT University of Stuttgart | Security Announcement Information Service | Germany | |
| SECurity Watch Service [SECWS] | DEVOTEAM Solutions - APOGEE | Notification service (email in HTML and TEXT format, both in French and English) | France | |
| Sintelli Alert! | Sintelli Limited | Vulnerability Alert Service | United Kingdom | |
| The Opsware Network | Opsware, Inc. | Internet Community Portal and Subscription Service | United States | |
| ThreatGuard Traveler | ThreatGuard, Inc. | Continuous Security Auditing and Compliance Management for Service Providers | United States | |
| ThreatGuard Vulnerability Management System | ThreatGuard, Inc. | Continuous Security Auditing and Compliance Management | United States | |
| TraceAlert | TraceSecurity, Inc. | Vulnerability and Malicious Code Alert Service | United States | |
| TruSecure IntelliSHIELD Early Warning System (EWS) | TruSecure Corporation | Integrated Asset Intelligence-Based Threat Management Service | United States | |
| Vulnera | Grupo S21sec Gestión S.A. | Daily Vulnerability Mail Service Based on a Daily Updated Database | Spain | |
| Xacta IA Manager | Xacta Corporation | Vulnerability Assessment and Remediation | United States | |