SapphireSteel Software specialises in professional-quality development tools for Microsoft Visual Studio.
Amethyst is a fully-featured Visual Studio IDE for the Adobe Flash Platform. Amethyst supports the drag-and-drop design, editing and debugging of Flex and AIR applications and it can also load Flash IDE projects for editing and debugging.
Ruby In Steel is a Visual Studio IDE for the Ruby programming language. It provides editing and debugging of projects targeting standard Ruby and JRuby and includes numerous tols for developing Ruby and Rails applications.