Is There a Sub Tof Open Source Soft Ware That Is Even Valuable as a Business?

Small businesses and indies do not like the things that you can pro tis into what an enterprise appreciates. So is there a sub tof open source soft ware that is even valuable as a business? Ye, of course. How large is that minority? Are we talking like, five percent of projects? 25 %? Half of them? O ho, i don't even know. I've no idea how much revenue tail win's making. But it's probably around there annual.