# Top Founders & CEOs in Cybersecurity Founders and CEOs of cybersecurity companies from seed to late stage. Filter by stage, technical background, and focus area. 19 curated entries. - [Deepak Gupta](https://gracker.ai/cyber-resources/founders/deepak-gupta): Deepak Gupta is a repeat cybersecurity founder: he built identity platform LoginRadius, which scaled to serve 1B+ end users, and now runs GrackerAI, a Generative Engine Optimization platform for B2B cybersecurity vendors. - [Nikesh Arora](https://gracker.ai/cyber-resources/founders/nikesh-arora): 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](https://gracker.ai/cyber-resources/founders/jay-chaudhry): 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](https://gracker.ai/cyber-resources/founders/george-kurtz): 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](https://gracker.ai/cyber-resources/founders/assaf-rappaport): 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](https://gracker.ai/cyber-resources/founders/sumit-dhawan): 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](https://gracker.ai/cyber-resources/founders/kevin-mandia): 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](https://gracker.ai/cyber-resources/founders/yevgeny-dibrov): 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](https://gracker.ai/cyber-resources/founders/shlomo-kramer): 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](https://gracker.ai/cyber-resources/founders/kyle-hanslovan): 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](https://gracker.ai/cyber-resources/founders/ken-xie): 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. - [Tomer Weingarten](https://gracker.ai/cyber-resources/founders/tomer-weingarten): Tomer Weingarten co-founded SentinelOne in 2013 and has led it as CEO since inception, building the AI-native endpoint and XDR vendor into a multibillion-dollar public company (NYSE: S). - [Sanjay Beri](https://gracker.ai/cyber-resources/founders/sanjay-beri): Sanjay Beri co-founded Netskope in 2012 and has been CEO since inception, building it into a SASE/SSE leader that is now public and serves a large share of the Fortune 100. - [Matthew Prince](https://gracker.ai/cyber-resources/founders/matthew-prince): Matthew Prince co-founded Cloudflare in 2009 and has been CEO since inception, taking it public in 2019 and building it into a leading internet security and infrastructure company. - [Evan Reiser](https://gracker.ai/cyber-resources/founders/evan-reiser): Evan Reiser co-founded Abnormal Security (now Abnormal AI) in 2018 and serves as CEO, building it into a multibillion-dollar AI-native email and human-behavior security company trusted by thousands of organizations. - [Mike Fey](https://gracker.ai/cyber-resources/founders/mike-fey): Mike Fey co-founded Island and serves as CEO, pioneering the enterprise browser category and scaling the company to a multibillion-dollar valuation in roughly five years. - [Christina Cacioppo](https://gracker.ai/cyber-resources/founders/christina-cacioppo): Christina Cacioppo co-founded Vanta in 2018 and is CEO, scaling the trust-management and compliance-automation platform to thousands of customers and a multibillion-dollar valuation. - [Mickey Bresman](https://gracker.ai/cyber-resources/founders/mickey-bresman): Mickey Bresman co-founded Semperis in 2014 and serves as CEO, building it into a leader in identity protection and Active Directory / Entra ID security and recovery. - [Adam Markowitz](https://gracker.ai/cyber-resources/founders/adam-markowitz): Adam Markowitz co-founded Drata in 2021 and is CEO, growing the trust-management and compliance-automation platform to thousands of global customers as one of the fastest-growing software companies. ## Frequently Asked Questions ### What stage of cybersecurity founders are listed here? Founders and CEOs from seed through late-stage, filtered by funding stage, technical background, and focus area, useful for investor sourcing, press outreach, and founder peer networking. ### Why does a marketing directory list founders and CEOs? In cybersecurity, the founder is often the company's primary spokesperson and analyst-relations contact, so founder visibility is itself a core part of the marketing and GTM function.