Jonathan Romanowski
Angel investor in San Diego
San Diego, California
Jonathan Romanowski, Angel investor in San Diego is an active investor based in San Diego, California. This profile covers what Jonathan Romanowski backs, at which stage, and how founders can reach out in 2026.
Mr. Jonathan Romanowski is an Angel Investor. Mr. Romanowski was a Technical Co-Founder at SimpleForms. He is a full stack engineer with 10 years of professional experience in javascript, developing robust web applications for the last 6 years. Worked as Engineering Lead of multiple teams and have professional experience as being part of an innovation team with specialty on producing proof of concept products to a market to see if they will gain traction.
- Investor type
- Angel
- Stages
- Early Stage VentureSeed
- Invests in
- FintechPaymentsLending & CreditSaaS & Enterprise
- Location
- San Diego, California
- Typical check
- $375K
- Past investments
- 2
Notable investments
How to reach Jonathan Romanowski
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About this profile
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Cite this page
Round Funded. "Jonathan Romanowski." Round Funded investor database, updated September 8, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jonathan-romanowski
Frequently Asked Questions
What does Jonathan Romanowski invest in?
Jonathan Romanowski invests in Fintech, Payments, Lending & Credit and SaaS & Enterprise, typically at Early Stage Venture and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jonathan Romanowski invest at?
Jonathan Romanowski typically invests at Early Stage Venture and Seed. Lead with traction that fits the stage when you reach out.
What is Jonathan Romanowski's typical check size?
Jonathan Romanowski typically writes checks around $375K. 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.