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Nubank is also pretty big (clj/cljs/datomic).

There's also Exoscale using clojure(script) extensively. Funding Circle and CircleCI also use it but I think "only" on the backend.

How did you know it was Clojurescript? Pretty awesome to see Clojure getting more use. It feels like a leap forward every time I even play with it.

Not too hard to guess from the jobs page https://pitch.com/about#hiring

Roam Research is also written in Clojure/Script.

Roam is rather niche though, and insanely overpriced.

Might be niche but they raise $200 million, four times what Pitch raised.

They raised $9m at a $200m valuation

Reify Health's StudyTeam is ~100% Clojure + ClojureScript