Please forgive me if this sounds ugly, that is not my intention but #39 and #40 are not very appealing at all. I just didn't want you to waste any time on that version.
#46 is really cool. The angled or curved objects take away from the seriousness of the logo for me though. It makes the logo look like it's for a creative company or internet company as opposed to a consulting firm. That's just my take though.