Roger Ten

Roger Ten is listed as an investment associate at Presidio Ventures, Inc., the Silicon Valley–based corporate venture capital arm of Japan's Sumitomo Corporation. Publicly available records (a Bloomberg person profile and firm directories) identify his affiliation and role, but detailed biographical information — education, prior roles, and tenure — is not publicly documented, so it is not stated here rather than guessed at. He is not currently listed on Presidio Ventures' published team roster, which suggests the association may be historical.

Presidio Ventures was established by Sumitomo Corporation in 1998 to invest in early-stage technology startups from Silicon Valley. Over more than two decades it has invested in 160–200+ companies, deploying capital and, distinctively, connecting portfolio startups to Sumitomo's worldwide network of affiliates and operating businesses across industries such as automotive/aerospace, energy, infrastructure, healthcare, agriculture, real estate, and steel. The firm frames its philosophy around Sumitomo's century-old principle of "shared prosperity."

As a corporate VC associate, the role typically involves sourcing and screening deals, conducting diligence, supporting portfolio companies, and helping bridge startups to relevant Sumitomo business units — rather than writing personal angel checks. Founders should therefore engage him as a channel into an institutional CVC process, not as an independent angel.

• Strategic CVC, not a pure financial investor: Presidio backs startups where Sumitomo's global operating businesses can add value — go-to-market help, commercial partnerships, and access to industrial end-markets.
• Stage: Early/seed through growth; the firm has held companies from early rounds all the way to IPO (e.g., Bloom Energy, Fortinet).
• Check size (firm-level): roughly $500K to $5M initial, per third-party VC databases.
• Sector priorities: enterprise IT and cloud/SaaS, cybersecurity, AI/ML, robotics and automation, mobility, IoT, fintech, and climate/energy and agtech.
• What makes them say yes: innovative, defensible technology plus a plausible fit with one or more Sumitomo industrial verticals that can serve as a customer, partner, or scale-up path.