Horizon3.ai, the leader in offensive security, announced the appointment of Holly Grey as Chief Financial Officer (CFO). With more than three decades of experience in public company operations, compliance, and strategic finance, Grey will lead Horizon3.ai’s global finance organization as the company scales adoption of the NodeZero® Offensive Security Platform and continues its trajectory of rapid growth and market leadership.
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Grey most recently served as CFO at Exabeam, where she led the company’s transition to a cloud-native model, improved margins, and helped position it for acquisition by Thoma Bravo. Prior to that, she played a critical role at Forescout Technologies, where she built out financial operations that supported its IPO in 2017 and eventual acquisition by Advent International. Her experience guiding companies through periods of hypergrowth and financial transformation will be instrumental as Horizon3.ai builds on its recent 101% year-over-year revenue growth and 150,000+ autonomous pentests completed globally.
“Holly is a proven operator who has helped scale and mature some of the most respected names in cybersecurity,” said Snehal Antani, CEO and co-founder of Horizon3.ai. “She knows what it takes to lead through complexity, drive operational discipline, and navigate both public and private markets. Her leadership will be critical as we expand globally and cement our position as the leader in offensive security.”
Grey’s background also includes senior finance roles at Accuray and Aspect Software, where she executed multiple acquisitions and major operational overhauls. At Horizon3.ai, she will be responsible for overseeing financial strategy, forecasting, operations, and compliance—ensuring the company is prepared to support long-term scale and capital efficiency.
“Horizon3.ai is redefining what it means to secure an organization by proving what’s actually exploitable, not just what’s theoretically vulnerable,” said Holly Grey, CFO of Horizon3.ai. “The company’s momentum is remarkable—from triple-digit revenue growth to a thriving global customer base served through MSSPs and partners. I’m excited to help operationalize and scale this success as we enter the next phase of global expansion.”
Her appointment follows a series of strategic leadership hires and a recently announced $100 million Series D funding round led by NEA, as Horizon3.ai accelerates platform expansion, global go-to-market execution, and category dominance in autonomous security.
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