just out of curiosity, what's the benefit of using functional programming in companies? productivity? I think the cost to find engineers proficient in functional languages would be more expensive than losing cost by using normal language such as java, python, etc.
You can find there under /results the list for Scala, but I don't have information how exactly are they using it.
Please be advice that the list is based upon resources available on the internet so probably some of them are wrong.