Jama - Jama combines requirement management software with enterprise collaboration capabilities to solve product delivery problems.
Zenkit - Zenkit is the home you always wanted for your ideas, your projects, your business.
Reqtify - Reqtify is an easy to use, interactive application for managing requirements.
Webuzo - Webuzo Application Manager
ReqView - Simple and powerful requirements management tool enabling easy requirements gathering, traceability tracking and offline collaboration.
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.