Entry #5 - Not feeling the graphic on this one - a little too pointy.
Entry #4 - Really like this one - maybe remove the slogan from the bottom - we are actually removing that from the design element and keeping that separate. The 1's and 0's within the graphic look perfect!
Entry #3 - our staff like this logo a lot - maybe add some changes to the arrows - add a little from Entry #4 and add the 1's and 0's to this entry also?