I've managed to do the opposite: Scala didn't stick, Clojure did. I guess there's some subjective reason why or why not Clojure/Scala would stick with someone.

However, it's false that Clojure doesn't have a company behind it: Cognitect is certainly backing up Clojure by developing ClojureScript and Clojure itself, Clojure consulting, the Datomic database and the Pedestal "framework".