SEC Welcomes New Subject Matter Experts Mark Kelly and Bill King

October 24, 2023 – The Security Executive Council proudly welcomes Mark Kelly and Bill King as our two newest Subject Matter Expert Faculty.

Mark Kelly has more than 25 years of experience managing global security programs for major multi-national organizations. His expertise spans the overall suite of physical security programs, but he specializes in supply chain security. He is former Global Head of Field Security & Supply Chain operations for Dell, former Senior Director of Field Security for McKesson, and he has held regional loss prevention roles for several retailers. Mark has developed end-to-end supply chain integrity and security programs for manufacturing and logistics operations, including third-party relationships and dependencies. He has also managed and mentored large teams spanning the globe and protecting offices, warehouse, manufacturing and data center locations. Mark sits on several advisory boards and has been a repeat guest lecturer at Georgetown University as part of their Masters’ program in Supply Chain.

Bill King boasts more than 40 years of military and contract security experience. Bill spent 27 years in the U.S. Marine Corps, where he served as an infantryman, reconnaissance specialist, drill instructor and Counterintelligence Agent. He has held management positions within the contract security business ranging from Security Officer to Vice President/General Manager. He has worked extensively with large multi-facility clients, corporate campuses, and industrial and government facilities, and he is skilled in business development, officer training, fire and life safety training and security program design. Bill is active in both professional and civic organizations that include ASIS and the Marine Corps Counterintelligence Association.

The SEC is the only research and advisory firm to exclusively use former corporate security senior leaders from leading Fortune 500 companies as our subject matter experts. Our team leverages their experience and knowledge to help other security leaders excel.

All SEC bios can be found on our Team page.

About the Security Executive Council
The Security Executive Council is the leading research and advisory firm focused on corporate security risk mitigation strategies and plans. We work with security leaders to transform security programs into more capable and valued centers of excellence. Watch our two-minute video for an overview or visit us at

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Marleah Blades
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