You are looking at the relationship from the wrong end. Everything SiFive does is about RISC-V. Everything that's important about RISC-V is not done by SiFive.

You are looking at the relationship from the wrong end. Everything SiFive does is about RISC-V. Everything that's important about RISC-V is not done by SiFive. (And if Qualcomm wins the current pissing contest for the future of the ISA, nothing that's important about RISC-V will be about SiFive, and that's fine. Qualcomm's ideas for the future are certainly better.)