First google result: <a href="https:&#x2F;&#x2F;wiki.haskell.org&#x2F;Haskell_in_industry" rel="nofollow">https:&#x2F;&#x2F;wiki.haskell.org&#x2F;Haskell_in_industry</a><p>You&#x27;ll probably recognize some companies, such as Facebook, Google, Microsoft.