SiFive, which helps companies ship custom chip designs based on the RISC-V architecture, raises $65.4M Series D from Qualcomm and others
Aaron Tilley / The Information :
Context & Ripple Effects
SiFive has been on a steady funding ladder: an $8.5M Series B in 2017 as it unveiled its first chip designs, then a $50.6M round led by Spark Capital in 2018. The new $65.4M Series D matters because it brings in Qualcomm — an incumbent chipmaker taking a strategic position in the open RISC-V ecosystem rather than just venture money.
The arc since then validates the bet: Intel offered more than $2B for SiFive in 2021, the Series F hit $175M at a $2.5B valuation in 2022, and by 2026 the company raised a $400M Series G at $3.65B with its CEO calling it the final round before an IPO. This 2019 round is where the strategic-investor pattern started.
First-order effects
- SiFive gets $65.4M to scale its custom-chip design business on RISC-V, moving from the $50.6M Spark-led round to a capital base that can support larger customer engagements.
- Qualcomm gains a direct stake in — and influence over — the leading RISC-V design-services company, an alternative to licensed instruction-set architectures.
Second-order effects
- Intel's later move — a reported $2B+ acquisition offer in 2021 — shows incumbents responding to RISC-V's rise by trying to buy the platform rather than compete with it.
- A strategic backer like Qualcomm de-risks SiFive for later investors, helping explain the jump to the $2.5B Series F valuation and the $350M+ total funding that followed.
Third-order effects
- If the pattern holds, open instruction sets shift chip-industry structure from licensing-fee models toward design-services platforms, with strategic capital from incumbents accelerating consolidation — SiFive's stated path to an IPO is the endpoint of that trajectory.
The trend: Open RISC-V silicon is pulling strategic capital from incumbent chipmakers, turning design-services startups like SiFive into platform-scale companies headed for public markets.