alienvault
(4)
Cayce Ullman
Cayce Ullman is the CEO and co-founder of ListingSpark, an Austin-based real estate technology company that lets homeowners list, market, and sell their properties for a flat daily fee instead of a traditional agent commission. Before ListingSpark he spent more than two decades building software and engineering teams, including co-founding the media platform Plex, leading product development at security firm AlienVault, and holding engineering roles at Cisco's IronPort division and E*TRADE. He holds a computer science degree from the University of Southern California and blends deep technical experience with a consumer-first approach to selling homes.
Denny LeCompte
Denny LeCompte is the CEO of Portnox, an Austin-based cybersecurity company that delivers cloud-native network access control and zero trust access for enterprises. A former cognitive psychology professor with a Ph.D. from Rice University, he spent two decades in product strategy at IT and security vendors including SolarWinds and AlienVault before taking the helm at Portnox in 2022. Under his leadership the company grew roughly 8x, and he was named a 2025 Cyber Leader of the Year. He writes the widely read 'Access Granted' LinkedIn column, arguing that cybersecurity is as much a human problem as a technical one.
Russell Spitler
Russell Spitler is co-founder and CEO of Nudge Security, an Austin-based cybersecurity company that helps organizations discover and govern the sprawl of SaaS and AI apps employees adopt on their own. He previously ran product strategy at AT&T Cybersecurity and AlienVault, where he co-founded the Open Threat Exchange, one of the largest open threat intelligence communities in the world. In November 2025, Nudge Security raised a $22.5 million Series A led by Cerberus Ventures, bringing total funding to roughly $39 million.
Barmak Meftah
Barmak Meftah is co-founder and general partner of Ballistic Ventures, a cybersecurity-focused venture firm. Previously CEO of AlienVault and president of AT&T Cybersecurity after AT&T acquired AlienVault, he has spent more than two decades building and funding security companies, from Fortify Software's early days to today's wave of AI-era security startups.