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SiFive

Hardware · US · sifive.com

Designer of AI chips based on the open RISC-V architecture.

Founders

Krste Asanovic (United States · ♂) — A UC Berkeley professor who co-invented the open RISC-V instruction set in 2010, then co-founded SiFive in 2015 to commercialize customizable RISC-V chips as Chief Architect.
Yunsup Lee (South Korea · ♂) — A Berkeley graduate student who helped invent RISC-V under Asanovic, co-founding SiFive as CTO to build the first commercial RISC-V semiconductors.
Andrew Waterman (United States · ♂) — A co-inventor of RISC-V as a Berkeley grad student who co-founded SiFive as Chief Engineer to bring open-ISA chips to market.

Date	Round	Amount
Apr 2026	Series D Plus New round at a $3.65B valuation for open RISC-V-based AI chip designs; NVIDIA among the backers.	$400M

Data is community-curated and may be incomplete.