Mark Thurmond
Mark Thurmond serves as co-Chief Executive Officer at Tenable, a role he assumed permanently after a successful interim period. Having joined Tenable as Chief Operating Officer in 2020, he now oversees go-to-market functions including sales, marketing, and customer success. Under his leadership, Tenable has expanded its customer base and completed the strategic acquisition of Vulcan Cyber, enhancing the Tenable One Exposure Management platform. Mark Thurmond became Chief Operating Officer at Tenable in 2020, overseeing global field operations including sales and professional services. In April 2025, he was appointed co-Chief Executive Officer. Under his interim co-CEO leadership, Tenable expanded its customer base and saw increased adoption of the Tenable One Exposure Management platform. He also played a role in Tenable being recognized as a leader in cloud security and winning multiple CRN Annual Report Card Awards. His leadership continues to drive Tenable's mission to help organizations understand and reduce cyber risk.
Career Milestones
- Joined Tenable as Chief Operating Officer in 2020, overseeing global field operations including sales and professional services.
- Appointed co-Chief Executive Officer in April 2025 after a successful interim period.
- Expanded Tenable's customer base and adoption of the Tenable One Exposure Management platform.
- Oversaw the strategic acquisition of Vulcan Cyber to enhance Tenable's platform capabilities.
- Contributed to Tenable being recognized as a leader in cloud security and winning multiple CRN Annual Report Card Awards.
About Tenable
Tenable, founded in 2002, is a cybersecurity company specializing in exposure management. They help organizations understand and reduce cyber risk across IT, cloud, and operational technology environments. Core features include vulnerability management, threat detection, and compliance assessment. Benefits include comprehensive visibility and reduced cyber risk.