Cleartrip, an Indian startup (must have grown by now - this is from some years ago) used/uses Common Lisp. I know via a friend who worked there and wrote a lot of the CL code for their site.
I've read that ITA Software (which Google bought some time ago), also used some Lisp, maybe Common Lisp.
Plus if you go on to sites like Franz.com (makers of Allegro CL) and LispWorks, you will probably find lists of clients of theirs.
I've read that ITA Software (which Google bought some time ago), also used some Lisp, maybe Common Lisp.
Plus if you go on to sites like Franz.com (makers of Allegro CL) and LispWorks, you will probably find lists of clients of theirs.