Jonathan Leiman
Partner at North Branch Capital
Chicago, Illinois
Jonathan Leiman, Partner at North Branch Capital is an active investor based in Chicago, Illinois. This profile covers what Jonathan Leiman backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPE
- Stages
- SeedSeries ASeries BLate Stage Venture
- Invests in
- Manufacturing & Industrial
- Location
- Chicago, Illinois
- Typical check
- $2M
- Past investments
- 2
Notable investments
How to reach Jonathan Leiman
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Round Funded. "Jonathan Leiman." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jonathan-leiman
Frequently Asked Questions
What does Jonathan Leiman invest in?
Jonathan Leiman invests in 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 Jonathan Leiman invest at?
Jonathan Leiman 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 Jonathan Leiman's typical check size?
Jonathan Leiman typically writes checks around $2M. 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.