Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.
One Hour Translation - Professional translation services for 75 languages on a 24/7 basis.
FLTK - Fast Light Toolkit - Fast Light Toolkit (FLTK)
Rev.com - Transcriptions, captions, and subtitles that are affordable, fast, and high-quality.
wxWidgets - wxWidgets: Cross-Platform GUI Library
Gengo - People-powered translation at scale.