Bill Flagg
Angel investor in Boulder
Boulder, Colorado
Bill Flagg, Angel investor in Boulder is an active investor based in Boulder, Colorado. This profile covers what Bill Flagg backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Seed
- Invests in
- Healthcare & BiotechSaaS & EnterpriseConsumer & RetailE-commerce & D2CEdTech
- Location
- Boulder, Colorado
- Typical check
- $250K
- Past investments
- 2
Notable investments
PaySimpleSurveyGizmoHow to reach Bill Flagg
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Connect with Bill Flagg
Frequently Asked Questions
What does Bill Flagg invest in?
Bill Flagg invests in Healthcare & Biotech, SaaS & Enterprise, Consumer & Retail and E-commerce & D2C, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Bill Flagg invest at?
Bill Flagg typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is Bill Flagg's typical check size?
Bill Flagg typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do I contact Bill Flagg?
Unlock Bill Flagg's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.