Jonathan Winfield is an Associate at Argentum, involved in sourcing deals and working with portfolio companies. He previously worked at Keybanc Capital Markets and J.P. Morgan, and holds a B.A. from Baruch College.
What Jonathan can write
The Argentum Group writes $3M to $30M checks, larger than 93% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: The Argentum Group.Career
- J.P. Morgan · various roles within the credit organization
- Keybanc Capital Markets · Technology investment banking group
- Argentum · AssociateNow
Focus
Education
Also at The Argentum Group
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Who is Jonathan Winfield?
Jonathan Winfield is an Associate at Argentum, involved in sourcing deals and working with portfolio companies. He previously worked at Keybanc Capital Markets and J.P. Morgan, and holds a B.A. from Baruch College.
How much does Jonathan Winfield invest?
Jonathan Winfield invests through The Argentum Group, which writes checks of $3M to $30M at series b.
How do I pitch Jonathan Winfield?
A warm intro from a founder The Argentum Group backed works best. A short LinkedIn note with one line on traction is the next best route.
What did Jonathan Winfield do before The Argentum Group?
various roles within the credit organization at J.P. Morgan; Technology investment banking group at Keybanc Capital Markets.
Last updated 2026-10-15. Is this you? Ask for a correction.