Code Forge, Inc. --http://www.codeforge.com/
Code Forge IDE is an Integrated Development Environment for Unix/Linux that provides full project management and a complete edit/compile/debug cycle support for over 30 programming languages.
an open platform for tool integration built by an open community of tool providers. Operating under a open source paradigm, with a common public license that provides royalty free source code and world wide redistribution rights, the eclipse platform provides tool developers with ultimate flexibility and control over their software technology.
The KDevelop-Project was founded in 1998 to build up an easy to use IDE (Integrated Development Environment) for KDE. Since then, the KDevelop IDE is publicly available under the GPL and supports many programming languages.