What buisness value from F# and where it applies in the enterprise?

The first thing that comes to mind — support for pure functions, which allows easily and without limitation to thread code.
In fact, some erlang is widely used in the same Telecom due to these properties.

Primarily in applications of financial and banking sector, in General, there was an article about it
\rhabrahabr.ru/blogs/net/71656/#habracut