Serena Dimensions RM - Serena Dimensions RM is a web application to improve the definition and management of requirements across the product lifecycle.

SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.

ReqView - Simple and powerful requirements management tool enabling easy requirements gathering, traceability tracking and offline collaboration.

PhpMetrics - PhpMetrics provides metrics about PHP project and classes, with beautiful and readable HTML report.

Visure - Visure offers  a flexible , modern and complete requirements ALM Platform (Application Lifecycle Management).

Jama Connect - The Leader in Requirements Management Solutions