Heroku is known for its Ruby hosting and later added node.js support as well. Now, Heroku also supports Clojure:
We’re very excited to announce official support for Clojure, going into public beta as of today. Clojure is the third official language supported by Heroku, and is available on the Cedar stack.
Clojure is a popular Lisp for the Java Virtual Machine. While Clojure applications could already be deployed on other Platform-as-as-Services (PaaS), such as Google AppEngine — Heroku is the first Platform-as-a-Service provider to offer official Clojure support.