Noma Security Bolsters Executive Team with Key Appointments
On August 4, 2025, Noma Security, a front-runner in agentic AI security solutions, revealed the addition of two prominent figures to its executive ranks. Diana Kelley has been appointed as the Chief Information Security Officer (CISO), while Mavi Grizer steps into the role of Vice President of Customer Success. These strategic hires signify Noma's commitment to enhancing its leadership as it navigates the growing demand for AI-driven enterprise security solutions.
Niv Braun, CEO and Co-Founder of Noma Security, expressed enthusiasm about the new appointments, stating that both Diana and Mavi are not merely seasoned executives but transformative leaders in their fields. “They have significantly contributed to the evolution of cloud and AI security technologies,” he said, highlighting their strong credentials and relevance to Noma’s mission.
The Expertise of Diana Kelley
Diana Kelley brings a wealth of experience to Noma Security, having held pivotal roles in major technology and cybersecurity firms. Her illustrious background includes senior positions such as Cybersecurity Field CTO at Microsoft, Global Executive Security Advisor at IBM Security, and General Manager at Symantec. Most recently, she served as CISO at Protect AI, carving out a reputation as one of the most respected voices in AI security. In her role at Noma Security, Diana will act as a trusted advisor to clients and lead initiatives designed to spur ongoing innovation in AI security.
Diana noted, “The landscape of enterprise technology is shifting with the advent of AI, but this brings a new wave of security challenges. Noma Security's focused purpose in AI security drew me here. It's not merely about creating a security platform; it’s about establishing a robust foundation for securing AI's future.” Diana aims to bridge the gap between innovative security features and actual customer needs, a mission that is vital in today’s fast-paced digital environment.
Mavi Grizer's Customer-Centric Approach
Joining Diana, Mavi Grizer brings more than two decades of experience in driving customer success and strategic partnerships within influential tech companies. Previously, Mavi was the Global Director of Customer Success at Wiz, where she played a pivotal role in scaling one of the fastest-growing cloud security enterprises. Her decade-long journey at Microsoft encompassed various leadership roles focused on customer satisfaction, partner strategy, and business development.
Mavi's goal at Noma Security is to cultivate exceptional experiences for customers, ensuring heightened satisfaction and business growth. “Addressing critical challenges in enterprise technology, particularly in the realm of AI security, is what makes Noma unique,” she stated. Mavi expressed her excitement for joining a team that values customer success and innovation, positioning Noma as a pioneer in the secure AI landscape.
Recent Growth and Funding
These notable appointments come on the heels of Noma Security raising $100 million in a funding round, underscoring the company's rapid expansion and ongoing success. As the organization adjusts to meet the increasing demands for security in AI environments, these executive leaders are set to play vital roles in shaping the future of Noma Security.
In a world where AI is quickly becoming a core component of enterprise technology, the stakes for maintaining security are high. Noma Security is positioned strategically to leverage these new appointments, ensuring that it meets both enterprise demands and challenges adeptly.
To find out how Noma Security can enhance your organization's AI security, visit
Noma Security's website.
Additionally, for those attending Black Hat USA 2025, Noma Security will be featuring its executive and product teams, providing insights into the future of AI security management. Learn more about securing AI environments by visiting
Black Hat USA Event.