John Martinson
Managing Partner at Edison Ventures
Trenton, New Jersey
John Martinson, Managing Partner at Edison Ventures is an active investor based in Trenton, New Jersey. This profile covers what John Martinson backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelInvestor
- Stages
- Pre SeedSeed
- Invests in
- Consumer & RetailIoT & Connected Devices
- Location
- Trenton, New Jersey
- Typical check
- $150K
- Past investments
- 3
Notable investments
How to reach John Martinson
Angels and operators like John Martinson 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.
Reach active investors like this one
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "John Martinson." Round Funded investor database, updated October 19, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-martinson
Frequently Asked Questions
What does John Martinson invest in?
John Martinson invests in Consumer & Retail and IoT & Connected Devices, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Martinson invest at?
John Martinson typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is John Martinson's typical check size?
John Martinson typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.