Jonathan Mariner
Angel investor in Florida
Florida
Jonathan Mariner, Angel investor in Florida is an active investor based in Florida. This profile covers what Jonathan Mariner backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Sports & FitnessFintechHealthcare & BiotechAR/VR & MetaverseClimate & Energy
- Location
- Florida
- Typical check
- $150K
- Past investments
- 8
Notable investments
KairosBEAM AuthenticMPOWERDFixtHow to reach Jonathan Mariner
Angels and operators like Jonathan Mariner 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 Jonathan Mariner
Frequently Asked Questions
What does Jonathan Mariner invest in?
Jonathan Mariner invests in Sports & Fitness, Fintech, Healthcare & Biotech and AR/VR & Metaverse, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jonathan Mariner invest at?
Jonathan Mariner typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Jonathan Mariner's typical check size?
Jonathan Mariner typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do I contact Jonathan Mariner?
Unlock Jonathan Mariner's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.