Wow, Edo, those are lots of designs! Thank you. I will be reviewing the logos with my team tomorrow at 4 PM pacific time. We will have feedback for you and the other designers at that time.
I will add that on my general note where I was looking for buildings with a network depiction underground, I had something like this (
http://duino4projects.com/wp-content/uploads/2013/06/Arduino-MP3-Player-Schematic.jpg) in mind for the network. That is, a series of multi-colored underground utilities connecting the buildings and feeding them with electricity, water, gas, etc. Not sure how to pull that off, but that's what I had in my mind.
Cheers!
~ Rick