SiFive raises $400m Series G at $3.65bn valuation in final round before IPO

SiFive, the RISC-V chip IP company founded by Berkeley engineers, raised $400 million in an oversubscribed Series G round at a $3.65 billion valuation. The round was led by Atreides Management and includes Nvidia, Apollo Global Management, and several major asset managers. CEO Patrick Little confirmed this is the final private funding round before an IPO. Nvidia's participation is tied to a technical integration: SiFive is embedding NVLink Fusion into its data centre platform, enabling RISC-V CPUs to connect directly to Nvidia GPUs. The capital will fund R&D on high-performance RISC-V CPU IP, software ecosystem work (porting CUDA, RHEL, and Ubuntu to RISC-V), and customer enablement for hyperscale deployments. SiFive reports over 10 billion RISC-V cores shipped to date and frames the data centre as a $100B+ addressable market, positioning its open-standard architecture as an alternative as Arm moves into selling its own branded hardware.