Jon Bruner

Active Investor

Head Of Marketing at Lumafield

San Francisco, California

Jon Bruner, Head Of Marketing at Lumafield is an active investor based in San Francisco, California. This profile covers what Jon Bruner backs, at which stage, and how founders can reach out in 2026.

Investor type: Angel
Stages: Pre SeedSeed
Invests in: Healthcare & BiotechMedTech & Medical DevicesSaaS & EnterpriseClimate & EnergyHardware & Deep TechIoT & Connected DevicesManufacturing & IndustrialMobility & Logistics
Location: San Francisco, California
Typical check: $150K
Past investments: 2

Notable investments

O'Reilly MediaFormlabs

How to reach Jon Bruner

Angels and operators like Jon Bruner 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.

Frequently Asked Questions

What does Jon Bruner invest in?

Jon Bruner invests in Healthcare & Biotech, MedTech & Medical Devices, SaaS & Enterprise and Climate & Energy, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.