Jonathan Santoso, Venture Partner at Haas Impact Fund is an active investor based in Berkeley, California. This profile covers what Jonathan Santoso backs, at which stage, and how founders can reach out in 2026.
Venture Partner at Haas Impact Fund focusing on sustainable and equitable business practices to solve global problems.
Jonathan Santoso invests in FoodTech & Agriculture and Impact & Social Enterprise, typically at Early Stage Venture.
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- FoodTech & AgricultureImpact & Social Enterprise
- Location
- Berkeley, California
- Typical check
- $500K
How to reach Jonathan Santoso
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Cite this page
Round Funded. "Jonathan Santoso." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jonathan-santoso
Frequently Asked Questions
Who is Jonathan Santoso?
Jonathan Santoso, Venture Partner at Haas Impact Fund is an active investor based in Berkeley, California. Jonathan Santoso invests in FoodTech & Agriculture and Impact & Social Enterprise, typically at Early Stage Venture.
What does Jonathan Santoso invest in?
Jonathan Santoso invests in FoodTech & Agriculture and Impact & Social Enterprise, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jonathan Santoso invest at?
Jonathan Santoso typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Jonathan Santoso's typical check size?
Jonathan Santoso typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.