

452: Proof: SaaS Growth Lessons from $0 to $100M ARR - with Pat Kinsel
10 snips Sep 11, 2025
Pat Kinsel, founder and CEO of Proof, shares his journey from a notary service to a robust transaction security platform. He discusses how COVID-19 reshaped demand and pushed innovation for enterprise clients. The conversation highlights the importance of consumer engagement and strategic growth, navigating regulatory challenges, and adapting business models. Kinsel also offers quick insights on productivity, finishing tasks, and the essence of successful entrepreneurship, all while emphasizing the balance between technology and market needs.
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Notary Error Sparked The Startup
- Pat Kinsel's notary error after selling his startup to Twitter inspired him to fix a broken process.
- That personal pain led him to build Notarize and spend years changing state laws for online notarization.
Validate With A Landing Page First
- Validate demand with the cheapest test you can run before building product.
- Pat used a simple landing page and Google Ads to measure clicks and CAC before writing any code.
MVP Was Telemedicine For Notaries
- The initial MVP was a mobile marketplace connecting consumers to notaries for instant video notarizations.
- Pat paid notaries to be online and lost money on each transaction during early years.