Have you looked into shops that use Haskell? I know some trading firms use lispy languages and some game studios (Naughty Dog?) also use them. But I could be wrong.
Naughty Dog had somewhat famously written Crash Bandicoot and Jak and Daxter using Lisp although they don't appear to use it these days
Damn I'd love to use it in Emacs. I never had to use Emacs and stopped dreaming about it or vim, but would love to learn it, and the best way to learn it is to be forced to use it for a few weeks.
It would also be interesting to read the code for debugger, linker and compiler.