Ernst Sack
Partner at Blue Bear Capital
Jackson, Wyoming
Ernst Sack, Partner at Blue Bear Capital is an active investor based in Jackson, Wyoming. This profile covers what Ernst Sack backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPE
- Stages
- SeedSeries ASeries BLate Stage Venture
- Invests in
- Climate & EnergyCybersecurityIoT & Connected DevicesManufacturing & IndustrialRobotics & Automation
- Location
- Jackson, Wyoming
- Typical check
- $2M
- Past investments
- 27
Notable investments
Voyager PortalAvalo, Inc
FreeWire Technologies
ShorelineMission SecureCopper LabsPani EnergyVoyager
EveractiveMineralSoftNuclearnThe Demex GroupHow to reach Ernst Sack
Angels and operators like Ernst Sack 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 Ernst Sack
Frequently Asked Questions
What does Ernst Sack invest in?
Ernst Sack invests in Climate & Energy, Cybersecurity, IoT & Connected Devices and Manufacturing & Industrial, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Ernst Sack invest at?
Ernst Sack typically invests at Seed, Series A, Series B and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Ernst Sack's typical check size?
Ernst Sack typically writes checks around $2M. Use it as a signal for whether your raise fits their stage.
How do I contact Ernst Sack?
Unlock Ernst Sack's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.