Susan Heystee
Angel investor in Orange County
Orange County, California
Susan Heystee, Angel investor in Orange County is an active investor based in Orange County, California. This profile covers what Susan Heystee backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPECorporate VC
- Stages
- Early Stage Venture
- Invests in
- Hardware & Deep TechAutomotive & EVSaaS & Enterprise
- Location
- Orange County, California
- Typical check
- $500K
- Past investments
- 7
Notable investments
Rhumbix
ChargePoint
Ouster
TelogisAssembly VenturesBoys and Girls Club of San Juan Capistrano ValleyHow to reach Susan Heystee
Angels and operators like Susan Heystee reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Susan Heystee." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/susan-heystee
Frequently Asked Questions
What does Susan Heystee invest in?
Susan Heystee invests in Hardware & Deep Tech, Automotive & EV and SaaS & Enterprise, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Susan Heystee invest at?
Susan Heystee typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Susan Heystee's typical check size?
Susan Heystee 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.