Jamesin Seidel
Jamesin Seidel is General Partner at Chapter One, a seed venture firm in New York writing $250K–$5M checks. Jamesin focuses on Anti Spam, Online Safety and Professional Sports Betting. DryPowder last updated this profile on June 3, 2026.
- Anti Spam
- Online Safety
- Professional Sports Betting
Updated
About Jamesin
Jamesin joined Chapter One's investing team in January 2022. She came into investing through the worlds of anti-spam, online safety, and professional sports betting.
Source: Chapter One team page
How to pitch Jamesin
- Lead with
- Jamesin's stated focus: Anti Spam, Online Safety and Professional Sports Betting.
- Size the ask
- Chapter One invests at seed, with $250K–$5M checks.
Other partners at Chapter One
Frequently asked questions
What does Jamesin Seidel invest in?
Jamesin Seidel is General Partner at Chapter One. Jamesin's listed focus areas are Anti Spam, Online Safety, Professional Sports Betting. Chapter One invests at Seed.
What check size does Chapter One write?
Chapter One writes $250K–$5M checks at Seed, per the fund's DryPowder profile.
How do I contact Jamesin Seidel?
Jamesin has a public LinkedIn profile, linked on this page. DryPowder has an email address on file for Jamesin, shown on paid plans.
Sources
- Website: Chapter One website (team page)
- LinkedIn: Jamesin Seidel on LinkedIn
- Method: How DryPowder builds its data