Semiconductor intellectual property core (English Wikipedia)

Clark, Peter (April 23, 2014). "Cadence breaks into top four in semi IP core ranking". EE Times Europe. No. N/A. Peter Clark. European Business Press SA. Archived from the original on August 2, 2014. Retrieved July 14, 2014.

deloitte.com (Global: 2,714^th place; English: 2,274^th place)

"RISC-V Cores and SoC Overview". RISC-V Foundation. Archived from the original on 24 April 2020. Retrieved 8 October 2019.

Clark, Peter (April 23, 2014). "Cadence breaks into top four in semi IP core ranking". EE Times Europe. No. N/A. Peter Clark. European Business Press SA. Archived from the original on August 2, 2014. Retrieved July 14, 2014.
http://www.eettaiwan.com/ART_8800406094_480102_AN_71148c3a.HTM Archived 2009-08-04 at the Wayback Machine IP hardening by eetTaiwan Dead link 2011 06 30
[1] More about IP hardening. An organization (which is set up by government) provides services of IP hardening and IP integration. In Chinese.
"RISC-V Cores and SoC Overview". RISC-V Foundation. Archived from the original on 24 April 2020. Retrieved 8 October 2019.