SiFive is the first fabless provider of customized semiconductors based on the free and open RISC-V instruction set architecture. Founded by RISC-V inventors Yunsup Lee, Andrew Waterman and Krste Asanovic, SiFive democratizes access to custom silicon by helping system designers reduce time-to-market and realize cost savings with customized RISC-V based semiconductors.

SiFive is located in Silicon Valley and has venture backing from Sutter Hill Ventures, Spark Capital and Osage University Partners.