Family Dollar Stores
I do know of a CLT-based Lear 31A and Lear 45 operator, but it isn't a bank (in Charlotte, that's a surprise!). Family Dollar Stores is headquartered in Charlotte, and their flight department is based at CLT. A friend of mine used to work for them.
Last I knew, they had two Lear 31As (N931FD and N932FD) and a new Lear 45 (N945FD).
Pre-merger, First Union was Charlotte-headquartered and kept their airplanes at CLT. Wachovia was headquartered up in Winston-Salem, airplanes at INT. I know there was some downsizing when the departments combined. The combined Wachovia is based in Charlotte, and the flight department is still at CLT.
Hope this helps, a little bit.
R