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For OCaml, there are many more companies using it than just JaneStreet. Facebook and Bloomberg being some of the well known ones. http://ocaml.org/learn/compan

• rwmj 13y ago
  Red Hat .. somewhat kicking and screaming, but we've shipped the OCaml compiler, libraries and programs written in OCaml since RHEL 6 (note that Red Hat does not support the OCaml compiler, although there are customers that use it). Edit: The chances are if you used a program that started with virt- on any Linux distro, then 50/50 OCaml was involved in the making of that program. It was either written in OCaml or used OCaml to generate large amounts of C boilerplate. OCaml binaries look a lot like C binaries, so it's hard to tell from the binary. And it turns out that functional languages with pattern matching on data are extremely good for generating all that C boilerplate, like crap you need to write for FFIs or dealing with remote parameter marshalling.
• pjmlp 13y ago
  Including Microsoft, which many aren't aware of.
  • amirmc 13y ago
    They're also a member of the OCaml Consortium, too http://ocaml.org/community/support.html#TheCamlConsortiumatInria http://ocaml.org/community/support.html#TheCamlConsortiumatI...