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.
- Investor type
- VC
- Stages
- SeedSeries A
- Invests in
- SaaS & EnterpriseFintechArtificial Intelligence
- Location
- New York, New York
- Typical check
- $625K
How to reach Jonathan Lewinsohn
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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.
Frequently Asked Questions
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.
How do I contact Jonathan Lewinsohn?
Unlock Jonathan Lewinsohn's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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.