paper.li is almost fully clojure. exoscale.ch runs critical infrastructure on clojure. walmart labs has been mentioned, the climate corporation (recently bough

paper.li is almost fully clojure. exoscale.ch runs critical infrastructure on clojure. walmart labs has been mentioned, the climate corporation (recently bought by monsanto) is another well-known one. Here in Switzerland I can count 4 others smaller companies and at least a very big telco. If you start counting every company relying on riemann for production monitoring that adds quite a few :-)