SiFive is a fabless semiconductor company that produces computer chips based on the RISC-V instruction set architecture.

SiFive is the first fabless semiconductor company to build customized silicon based on the free and open RISC-V instruction set architecture.

SiFive was founded in 2015 by Yunsup Lee, Krste Asanović, & Andrew Waterman. The company has its headquartered based in San Mateo, California with 14 additional offices worldwide.

SiFive is uniquely positioned to take advantage of the need for custom silicon as device manufacturers rapidly adopt domain-specific application processor designs in response to the point of compute migrating to the Edge. 

SiFive develops a range of processor cores, accelerators, and SoC IP to create domain-specific architecture that will enable efficient, high-performance computing solutions. It innovates by developing processor microarchitecture, SoC IP, and accelerator IP for use in workload-specific silicon.


SiFive’s product portfolio of RISC-V-based microarchitectures are the perfect choice to replace and augment legacy, general-purpose proprietary architectures in workload-focused designs. Recently, SiFive announced the SiFive 20G1 update for SiFive Core IP, enabling significant enhancements for performance, power, area, and features, with pre-integrated SiFive Shield, for whole SoC security, and SiFive Insight advanced trace and debug capabilities.


SiFive is backed by Intel Capital, Qualcomm Ventures, Sutter Hill Ventures, SK hynix, Prosperity7 Ventures, Chengwei Capital, Spark Capital, Osage University Partners, Huami and others. The company raised $61M in Series E round on Aug 11, 2020. This brings SiFive's total funding to $190.5M to date.



  • Year founded: 2015
  • Funding Info: $190.5M over 5 Rounds of Funding (Last Funding Type: Series E)
  • Yearly Revenue: NA
  • Employee Size: 201-500
  • Business Valuation: NA
  • City/Town: San Mateo
  • State: California
  • Country: United States
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