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Hex Five Team

Management Team


Cesare Garlati is co-founder and technology lead at Hex-Five. He is also the Chief Security Architect at prpl Foundation and an internationally renowned expert in information security. Prior to co-founding Hex-Five he was Vice President of mobile security at Trend Micro.

Cesare holds a U.C. Berkeley MBA, a Master in Electrical Engineering and Computer Sciences, professional certifications from Microsoft, Cisco and Oracle, and he is a Fellow of the Cloud Security Alliance, where he founded and chaired the Mobile Security and IoT Security groups.


Don Barnetson is co-founder and outbound lead at Hex-Five. He is also the Head of Technology at Zorlu Ventures, a corporate VC and innovation firm based in San Jose representing the Zorlu Group, a leading Turkish industrial conglomerate.

Prior to co-founding Hex Five, he was CTO at Lunera – an smart building IoT platform company.  He holds 23 US patents, an MBA from the Haas School of Business at UC Berkeley and an B.Sc. in Electrical Engineering from the University of Calgary.

Advisory Board

Celeste Cooper is currently the Chief of Staff to the CTO at Western Digital. In her role at Western Digital, Celeste is an active member of the RISC-V Foundation supporting commercialization efforts and the buildout of the RISC-V ecosystem.  Prior to joining Western Digital, Celeste was at Hewlett Packard Enterprise where she held several roles including Vice President of Global Professional Services and Vice President of Strategy & Operations / Chief of Staff for the Communications Solutions Business.   Celeste has also been involved with several startups including her role as the Chief Operating Officer of Runa, Inc.

Jon Geater is a cryptographic security industry veteran and globally recognized expert in Trusted Execution Environments. Most recently as Chief Technology Officer for Thales eSecurity, Jon has held senior global roles in leading companies such as ARM (Director of Technology and Division CTO, Secure Services Division) and TEE specialist Trustonic (founding Chief Technology Officer and Executive Vice President Engineering).  A keen supporter of open standards, Jon has been a board director and chair of the Security Task Force at GlobalPlatform, and currently serves on the Governing Board of the Linux Foundation’s Hyperledger project.

Art Swift is President of MIPS Licensing at Wave Computing.  He has more than 25 years of executive-level experience in the tech industry, including CEO at low power chip-maker Transmeta (NASDAQ, TMTA), CEO of nanotech innovator Unidym, and vice president of marketing and business development at MIPS, a leading provider of microprocessor IP.  Most Recently Art was the vice-chair of the RISC-V marketing committee and lead business development efforts at Esperanto Technologies, a developer of high-performance, energy-efficient computing solutions based on the open standard RISC-V ISA.

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