> SPARC has been licensed to several manufacturers, including Atmel, Bipolar Integrated Technology, Cypress Semiconductor, Fujitsu, Matsushita and Texas Instruments.
* https://en.wikipedia.org/wiki/SPARC
Fujitsu was selling Solaris-compatible systems (as were many others). Linux and BSDs also ran on them.
There were a number of x86 makers up until the 1990s or so, but who is left of them? Can you still license x86(_x64) to fab your own CPUs? You can with SPARC: