Casambi is 5-year old venture started by two former Nokia employees.  Casambi is focused on developing a complete lighting system around the Bluetooth Low Energy techology standard.

As they write on their site:

Casambi Technologies’ wireless lighting control solution is not just a lighting control system – Casambi is a technology. Based on Bluetooth Low Energy, Casambi has developed an own proprietary mesh network where all the intelligence of the system is replicated in every node and in such a way creates a system with no points of failure. The solution is self-healing and self-organizing. It also allows for firmware updates over the network allowing any kind of changes to be made over-the-air and in that way to be truly wireless. In this kind of fully distributed and symmetric architecture any unit can go offline and catch up from others when they return back online. Internet connection is only needed for user interface configurations for smartphones and tablets via cloud service.