Yeah, and having already had a clearance in the past definitely helps speed up the process to "reactivate" it. The big bummer for companies like mine is that our contract says that we have to have employees with an active clearance. So to activate the clearance, we have to hire them, keep them on overhead for several months and they can't start working until their clearance is approved.
It's a painful $20-$40k hit to the budget. :/