David Sipes
Angel investor in San Mateo
San Mateo, California
David Sipes, Angel investor in San Mateo is an active investor based in San Mateo, California. This profile covers what David Sipes backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Artificial IntelligenceFintechPaymentsHealthcare & BiotechSaaS & EnterpriseConsumer & RetailDeveloper Tools & DataEdTech
- Location
- San Mateo, California
- Typical check
- $150K
- Past investments
- 3
Notable investments
PandaDocTrainual
KlarityHow to reach David Sipes
Angels and operators like David Sipes 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. "David Sipes." Round Funded investor database, updated September 8, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/david-sipes
Frequently Asked Questions
What does David Sipes invest in?
David Sipes invests in Artificial Intelligence, Fintech, Payments and Healthcare & Biotech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does David Sipes invest at?
David Sipes typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is David Sipes's typical check size?
David Sipes typically writes checks around $150K. 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.