Top Founders & CEOs
Founders and CEOs of cybersecurity companies from seed to late stage. Filter by stage, technical background, and focus area.
10 curated entries· Updated quarterly
Nikesh Arora
Santa Clara, USA
Nikesh Arora has served as Chairman and CEO of Palo Alto Networks since June 2018, driving its transformation into a platform-first security leader with three major pillars: network security, cloud security (Prisma) and AI-driven security operations (Cortex).
Jay Chaudhry
San Jose, USA
Jay Chaudhry is the founder, Chairman and CEO of Zscaler, a publicly traded zero-trust cloud security company he founded in 2007. A serial entrepreneur, he previously founded and exited SecureIT, AirDefense, CipherTrust and CoreHarbor.
George Kurtz
Austin, USA
George Kurtz is co-founder, President and CEO of CrowdStrike, the cloud-native endpoint protection and XDR company he co-founded in 2012. CrowdStrike went public on Nasdaq in 2019 (CRWD) and is one of the world's largest pure-play cybersecurity companies.
Assaf Rappaport
New York, USA
Assaf Rappaport is co-founder and CEO of Wiz, the cloud security platform he founded in 2020. Wiz became the fastest SaaS company to reach $100M, $500M and $1B in ARR. In March 2026, Google completed its $32B all-cash acquisition of Wiz.
Sumit Dhawan
Sunnyvale, USA
Sumit Dhawan has been CEO of Proofpoint since November 2023, leading a global workforce of 4,500+ employees focused on email security, insider threat, data loss prevention and compliance. Proofpoint is owned by Thoma Bravo after a $12.3B take-private in 2021.
Kevin Mandia
Washington, USA
Kevin Mandia is the founder of Mandiant, former CEO of FireEye/Mandiant, and currently a General Partner at Ballistic Ventures. In 2026 he is also CEO of Armadin, an AI-focused cybersecurity company that launched with $189.9M in seed and Series A funding.
Yevgeny Dibrov
San Francisco, USA
Yevgeny Dibrov is co-founder and long-time CEO of Armis, the cyber exposure management and unmanaged/IoT device security company he co-founded in 2015. Armis was acquired by Insight Partners in 2020 and subsequently by ServiceNow in 2026.
Shlomo Kramer
Tel Aviv, Israel
Shlomo Kramer is co-founder and CEO of Cato Networks, the SASE platform he founded in 2015. Cato surpassed $350M in ARR in 2025. Kramer previously co-founded Check Point Software in 1993 and Imperva in 2002, giving him a rare track record of building three multi-billion-dollar cybersecurity companies.
Kyle Hanslovan
Ellicott City, USA
Kyle Hanslovan is co-founder and CEO of Huntress, the managed security platform he co-founded in 2015. Huntress protects more than 200,000 businesses, 4 million endpoints and 10 million identities. Hanslovan is a former NSA and Air Force offensive cyber operator.
Ken Xie
Sunnyvale, USA
Ken Xie is founder, Chairman and CEO of Fortinet, the publicly traded network security company he co-founded in 2000. Fortinet is one of the largest cybersecurity companies globally by revenue. Xie previously founded NetScreen (acquired by Juniper for $4B) and SIS.