100% - it is VERY heavily tapped by some corporates.
- Juniper, perhaps 2nd enterprise network device vendor after Cisco - run BSD on ALL their devices.
- NetApp base their O/S on BSD
- And lest we forget - Apple MacOS (formerly “OS X”) runs essentially, BSD (mostly FreeBSD) stuff ontop of their proprietary kernel (I think it’s “MACH” based) - it’s called “Darwin” - they pulled all this in when Jobs brought NeXT into Apple - most “home users” running some Apple devices (ALL of them, iPod, AppleTV, iPhone, iPad and Macintosh) don’t even know they’re running a BSD (when you jailbreak an iPhone or iPad, you can SSH to it’s BSD base system and install the userland CLI tools).
And I’m sure there’s a lot more besides.
- I nearly forgot - how could I - I’m using it - iXSystems base their free, and corporate / enterprise grade storage platform (they do software, and hardware) on FreeBSD : TrueNAS (formerly FreeNAS).