Coverity Scan - Find and fix defects in your Java, C/C++ or C# open source project for free
Watchtower - "Watchtower monitors your competition's websites and alerts you to important changes instantly."
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.
Sword Achiever - AchieverPlus compliance software solutions are modular and flexible management systems designed specifically to address the needs of businesses aiming for regulations compliance and business improvement.
ReSharper - ReSharper is a productivity tool for visual studio that provides tools and features to help you manage your code.
TRAVO - Instantly create end-to-end trips around your events.