Entry #10 looks great! Very close to what we're looking for. I like the flag and wrench you used.
The only suggestion I would have is to play around with the character to maybe make him look a little more professional and memorable. Maybe like a superhero type of figure. It may be cool to do something that looks like the statue of liberty but instead of a torch it's a wrench like the one you have in entry #10.
We like entry #13 the best. I still would like to see the character look a little less cartoony and more like a real person. If we could just make him look a little stronger, more professional etc. it would make the logo great!