Stichting Blender Foundation
chairman: Ton Roosendaal
For organizational or press related issues you can contact the Blender Foundation here:
Entrepotdok 57A
1018 AD Amsterdam
the Netherlands
Excellent support you can get on plenty of Blender websites.
Instructions how to report bugs in Blender.
Blender is a community effort; if you want to get involved as well - or if you have questions or feedback to developers - use one of the mailing lists as being listed online.