John Nastelli is the Vice President of Sales at Praetorian, where he leads sales strategy, business development, and customer relationship initiatives to support the company’s mission of delivering world-class cybersecurity solutions to enterprise clients.
With over 15 years of experience in enterprise sales and leadership, John has a strong track record of building high-performance teams, scaling go-to-market operations, and driving sustained revenue growth. Prior to joining Praetorian, he led the Enterprise Sales team at KnowBe4, where he played a key role in the company’s hypergrowth, its successful IPO in 2021, and its subsequent acquisition by Vista Equity Partners in 2022.
John is passionate about aligning cutting-edge security innovation with real business outcomes. He holds a Bachelor of Science in Economics from Longwood University.
Outside of work, he enjoys spending quality time with his wife and children, volunteering in the community, and exploring emerging technologies.
