I am trying to understand the institutional setup of Ethereum.
I could identify the following institutions: (1) The Ethereum foundation, (2) ETHDEV and (3) ETHCORE.
The foundation (1) is apparently a non-profit foundation based in Switzerland and Vitalik's blog post earlier this month gives some insights into the activities of the foundation. However, I cannot really get a grip on ETHDEV (2) and ETHCORE (3). People-wise there seems to be a significant overlap.