We (Xcoo, Inc.) are using Clojure since 2013.

https://xcoo.jp

Our products using Clojure are :

- "Chrovis", which is a bio-informatics web application that analyzes and visualizes huge genome data sets https://chrov.is

- "Hacker News Hack", which is a web application that shows HN with categories and popularity http://newshack.io