http://www.osdl.org

An industry consortium (involving several key players, including InternationalBusinessMachines, IntelCorporation, HewlettPackard) which leads development of the LinuxOs kernel, with a focus towards enterprise computing.  Current employer of LinusTorvalds.

Here is an interesting description of how well different models of SponsoredOpenSource have worked at OSDL:
* http://lists.freedesktop.org/archives/portland/2006-March/000223.html