I don't have a twitter account to chip in but I also thought about • https://shortcut.com/ • https://circleci.com/ • https://gomore.dk/

They mentioned in the thread Nubank. It's a bank in Brazil with more than 50 million customers. I think this is most successful example of Clojure in production apps.

I might be misunderstanding the context here, but is this list helpful? https://clojure.org/community/success_stories

Metabase.