SiFive raises $400M
SiFive raised $400 million at a $3.65 billion valuation with backing from Nvidia to develop open RISC‑V CPU designs targeted at AI data‑centre applications. (parameter.io) The funding is being positioned as a step toward scaling custom CPU architecture for data‑centre AI workloads and eventual public-market options. (parameter.io)
SiFive has raised $400 million to sell more data-center processor designs built on RISC-V, an open chip blueprint backed in this round by Nvidia. (sifive.com) The Series G round, announced April 9, 2026, values the Santa Clara company at $3.65 billion and was led by Atreides Management. Apollo Global Management, Nvidia, Point72 Turion, T. Rowe Price Investment Management, Prosperity7 Ventures, and Sutter Hill Ventures also participated. (businesswire.com) SiFive said the money will fund its high-performance data-center roadmap, while Reuters reported the company is aiming at the market for central processors that sit alongside artificial-intelligence accelerators in servers. (sifive.com) (msn.com) RISC-V is the basic instruction language a processor understands, and RISC-V International says the standard is open, which lets companies build chips around it without relying on a single owner such as Arm or Intel’s x86 ecosystem. (riscv.org) SiFive does not manufacture chips itself. It sells processor intellectual property and compute subsystems that other companies can license and use as the starting point for custom silicon. (sifive.com) That model has become more relevant as artificial-intelligence systems pack together central processors, graphics processors, and other accelerators inside one server. On January 15, 2026, SiFive said it would integrate Nvidia NVLink Fusion into its data-center-class products so its RISC-V designs can connect more tightly to Nvidia graphics processors and other accelerators. (sifive.com) SiFive was founded in 2015 by engineers tied to the University of California, Berkeley work that produced RISC-V, and TechCrunch reported this new round was oversubscribed. Reuters reported in 2021 that Intel had explored buying SiFive before those talks ended without a deal. (techcrunch.com) (finance.yahoo.com) (marketscreener.com) The immediate test is whether SiFive can turn an open instruction set into a bigger share of the data-center market, where Arm and x86 still dominate the central processor layer and Nvidia dominates artificial-intelligence accelerators. This round gives SiFive more cash to try. (techcrunch.com)
