I recommend that you get in touch with Clozure (www.clozure.com). They know more about contract Lisp work than just about anybody. There are many consultants who work, via Clozure, for companies doing work in Lisp.

Or, apply for a job at www.itasoftware.com. I love working there. See http://dlweinreb.wordpress.com/2007/12/24/16/.