William Bubenicek
Angel investor in Boston
Boston, Massachusetts
William Bubenicek, Angel investor in Boston is an active investor based in Boston, Massachusetts. This profile covers what William Bubenicek backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelPEInvestment Partner
- Stages
- Pre SeedSeedSeries ASeries BLate Stage Venture
- Invests in
- FintechSaaS & EnterpriseClimate & EnergyDeveloper Tools & DataHardware & Deep TechMobility & LogisticsPropTech & Real EstateEdTech
- Location
- Boston, Massachusetts
- Typical check
- $1M
- Past investments
- 9
Notable investments
Ecovent SystemsCambridge Clean Energy Ltd. (CCE)WAB DevelopmentBoardmyBizcomConnectMCambridge Clean EnergyHow to reach William Bubenicek
Angels and operators like William Bubenicek 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 Accelerator.
Connect with William Bubenicek
Frequently Asked Questions
What does William Bubenicek invest in?
William Bubenicek invests in Fintech, SaaS & Enterprise, Climate & Energy and Developer Tools & Data, typically at Pre Seed, Seed, Series A and Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does William Bubenicek invest at?
William Bubenicek typically invests at Pre Seed, Seed, Series A and Series B. Lead with traction that fits the stage when you reach out.
What is William Bubenicek's typical check size?
William Bubenicek typically writes checks around $1M. Use it as a signal for whether your raise fits their stage.
How do I contact William Bubenicek?
Unlock William Bubenicek's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.