Enduro Engineering concentrates mostly on products for KTM's.
I use their chain guard, which is a great protector for the Magura clutch. I have also ordered their stainless clutch cable, which is far better that the plastic stock. (glad I waited, they went from 59$ to 39$ :)
They do offer suspension service, and this is a guess....but I'm betting they outsource the work. (shrug)
KTM-lunatic probably has your best suggestion.