Tomo Yamaguchi

Senior Director atPresidio VenturesSanta Clara, California

Tomo Yamaguchi is a Senior Director at Presidio Ventures, the corporate venture capital arm of Sumitomo Corporation. The firm invests in early-to-growth-stage technology companies.

What Tomo can write

Writes checks of$1M to $10M
Comes in atSeed, Series A, Series BCan lead the round
Ownership target7-10%At first check
Best routeA short note on LinkedInA warm intro from a founder they backed works better.

Presidio Ventures writes $1M to $10M checks, larger than 83% of firms in the atlas.

Bars: how many firms report each check band. Highlighted: Presidio Ventures.

Focus

enterprise itcybersecurityaidigital mediamobility

Also at Presidio Ventures

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Questions

Who is Tomo Yamaguchi?

Tomo Yamaguchi is a Senior Director at Presidio Ventures, the corporate venture capital arm of Sumitomo Corporation. The firm invests in early-to-growth-stage technology companies.

How much does Tomo Yamaguchi invest?

Tomo Yamaguchi invests through Presidio Ventures, which writes checks of $1M to $10M at seed, series a, series b.

How do I pitch Tomo Yamaguchi?

A warm intro from a founder Presidio Ventures backed works best. A short LinkedIn note with one line on traction is the next best route.

Last updated 2026-10-15. Is this you? Ask for a correction.