All of them, it's a family of general-purpose programming languages :).
From older uses, you have Lisp in Gimp, Audacity, several AAA video games by Naughty Dog, in AutoCAD and few other recognizable places. Reddit was originally written in Common Lisp, later rewritten to Python. More recently, Clojure (a Lisp for JVM and CLR) is gaining popularity in the Java world, and a lot of startups are using it.
Java dev here, just to add that coding in clojure is bringing joy back to my daily working life. I've introduced it into a couple of projects, the simplicity and flexibility are an amazing productivity boost.
Some of that comes from clojure specifically, but the lisp syntax and macros are a big part of it.
From older uses, you have Lisp in Gimp, Audacity, several AAA video games by Naughty Dog, in AutoCAD and few other recognizable places. Reddit was originally written in Common Lisp, later rewritten to Python. More recently, Clojure (a Lisp for JVM and CLR) is gaining popularity in the Java world, and a lot of startups are using it.
Hacker News itself is written in Lisp, BTW.