Jonathan Lewinsohn
Managing Partner at Diameter Capital Partners LP
New York, New York
Jonathan Lewinsohn, Managing Partner at Diameter Capital Partners LP is an active investor based in New York, New York. This profile covers what Jonathan Lewinsohn backs, at which stage, and how founders can reach out in 2026.
Jonathan Lewinsohn invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A.
- Location
- New York, New York
- Typical check
- $625K
What does Jonathan Lewinsohn invest in?
- Investor type
- VC
Where is Jonathan Lewinsohn based?
Jonathan Lewinsohn is based in New York, New York.
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How to reach Jonathan Lewinsohn
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Round Funded. "Jonathan Lewinsohn." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jonathan-lewinsohn
Frequently Asked Questions
Who is Jonathan Lewinsohn?
Jonathan Lewinsohn, Managing Partner at Diameter Capital Partners LP is an active investor based in New York, New York. Jonathan Lewinsohn invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A.
What does Jonathan Lewinsohn invest in?
Jonathan Lewinsohn invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jonathan Lewinsohn invest at?
Jonathan Lewinsohn typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Jonathan Lewinsohn's typical check size?
Jonathan Lewinsohn typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Jonathan Lewinsohn based?
Jonathan Lewinsohn is based in New York, New York.
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.
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- Joe CarvalhoPartner and Co-Head of Private Capital at Diameter Capital Partners LP, West Palm Beach
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