ReqView - Simple and powerful requirements management tool enabling easy requirements gathering, traceability tracking and offline collaboration.
Jama Connect - The Leader in Requirements Management Solutions
Jama - Jama combines requirement management software with enterprise collaboration capabilities to solve product delivery problems.
Cradle - 3SL Cradle is a requirements management and systems engineering software tool.
IBM Rational DOORS Next Generation - IBM Rational DOORS Next Generation provides a scalable solution to optimize communication, collaboration and verification of requirements.
Visure - Visure offers a flexible , modern and complete requirements ALM Platform (Application Lifecycle Management).