I was offered a job by a staffing agency a while back, but got denied my interim secret. They went ahead and put me through the process anyway, confident that if they could get me cleared I could make them money

.
So, they called today and told me I was approved for my Secret

What I'm wondering is.....is this clearance tied to that one staffing agency? I never actually went to work for them, so do I have the clearance regardless? Will it transfer to any place I want to work, or would have have to re-apply?
Any insight appreciated!