Clojure is running enterprise tools around the world. We use it exclusively at our company, partly because we are small and time:productivity ratio is really good with it for few developers.<p>But much larger companies are using it also, nearly exclusively.<p>As far as macros go, the most popular Clojure library for routing web requests on a server is Compojure, and it wraps a lot of low-level stuff up in a tight lisp macro set that makes it trivial to functionally compose your http requests. It&#x27;s pretty nifty and is used extensively in industry.<p>Also this web site you are interacting with right this moment as you read this is built on lisp.