Leadership Team

Threat Management Group (TMG) is a Certified Service-Disabled, Veteran-Owned Small Business (SDVOSB) incorporated in 2004 and located on the Federal Law Enforcement Training Center (FLETC) in Charleston, SC. TMG continues to support Counter Terrorist Operations around the globe and was built by former High Threat Executive Protection, Special Operations Forces (SOF), Joint Service Explosive Ordnance Disposal (JSEOD), Chemical, Biological, Nuclear, Radiological (CBRN) and other specialized professionals.

Our single goal is to provide the best value solution for Emerging Threats, Curriculum Development, Program Management, Threat Products and Training – period. Our unique capability to design, develop, integrate, operate, and maintain a wide variety of diverse programs and high-risk training courses has led us to be recognized as an industry leader in the training field.

TMG is a “Total Solutions” company that provides unique and cost-effective products, training, and services tailored to the customer’s needs. We provide clients with large business systems, programs, and practices at small business prices with small business responsiveness.

TMG is honored to serve those that protect us, and we take your mission seriously.

David Grantham

President & CEO


David A. Grantham, Ph.D. is a nationally renowned security professional, having served in various positions on both the federal and local level.

Dr. Grantham currently serves as the CEO of Threat Management Group and previously served as the Chief of Intelligence and Technology at the Tarrant County Sheriff’s Office and before that as a Special Agent with the Air Force Office of Special Investigations (AFOSI), deploying both to Iraq and Afghanistan in support of counterintelligence operations.

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Dr. Grantham holds a PhD from Texas Christian University in Modern History with specializations in policy and conflict during the Cold War. He earned his Master of Science in International Relations from Troy University and Bachelor of Arts in History from the University of South Florida in 2004.

Dr. Grantham is the author of the award-winning book Consequences: An Intelligence Officer’s War.

Brandon Cox



Brandon served as CEO of Threat Management Group for 19 years prior to his retirement in 2024. He now serves as an Advisor to ensure the continued overall success of the organization.

Brandon is a Member of the South Carolina State House of Representatives, his responsibilities include upholding the Oath of Office, accountable representation and ensuring that the citizens of South Carolina have a safe and prosperous environment to live and raise their families.

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Prior to his election on 8 November 2022, he held positions on the Board of Directors for the Berkeley County Chamber of Commerce, served as a City Councilmember for Goose Creek and most recently, served as District 5 Berkeley County Councilmember.

Brandon’s previous work with USAF Explosive Ordnance Disposal (EOD) included operations in North Korea, Australia, Europe, Southwest Asia, Southeast Asia, and other hostile zones. He later utilized those experiences while performing high end, high threat security for a Private Military Contracting Firm in Iraq.

These diverse life experiences helped Brandon develop and refine his Core Principle of “SBQ”. Safety, Budget, and Quality, specifically in that order. The first and most important factor is providing a safe place to work and live. Next, all things must be done within a well-developed budget. Finally, once safety is confirmed and the budget is followed, Quality of Life should be exemplified.
Brandon is a graduate of U.S. Naval School Explosive Ordnance Disposal (NAVSCOLEOD), U.S. Navy Dive School, US Army Air Assault School, U.S. State Department Worldwide Personal Protective Services and other certified DOD, DOS, DOE, DTRA and civilian courses.

Mike Wise

Chief Financial Officer


Mike Wise joined Threat Management Group in August 2012 as Chief Financial Officer. In this role, Mr. Wise is responsible for all financial activities, government contract pricing and compliance, and human resources. Prior to joining TMG, Mr. Wise served as CFO for Lifecycle Construction Services of Fredericksburg, VA; a Hub Zone certified small business performing services as a general contractor on federal construction projects in the Southeast region. Previously, Mr. Wise held key financial and operational leadership positions with A-T Solutions, a privately held defense contractor providing anti- and counter-terrorism training, services and products to government customers. From 2006 to 2010 he was responsible for all contracting and financial management activities as CFO.

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Under his direction, annual revenue grew from $17MM to over $100MM, when the company was acquired by a private equity firm. In 2010, Mr. Wise received a SmartCFO award from SMARTCEO Magazine of Washington D.C. for “projects and processes put in place that were instrumental in the company’s success”. From 2010-2011 he led the Mission Support Solutions Group at A-T Solutions, where he implemented procedures to manufacture and ship more than 20,000 counter-IED training devices and products annually.

Mr. Wise also served on active duty in the U.S. Navy, retiring at the rank of Commander after nearly 21 years of distinguished service. As a Supply Corps Officer, Mr. Wise provided U.S. operating forces with strategic leadership in support of forward deployed operations, including supply chain management, contracting, logistics, program funding and financial management.

Mr. Wise is an experienced financial manager with extensive government contracting expertise and in depth knowledge of Federal Acquisition Regulations (FAR), Defense Contract Audit Agency (DCAA) procedures, government pricing, and cost accounting policies and procedures.

Mr. Wise earned an MBA with honors from The Ohio State University and a B.A. in Finance from Seattle University. He is married to the former Mary Susan Vandenberg of Seattle, WA, and resides in Spotsylvania, VA with his family.

Hannah Cox

Director of Operations



Hannah Cox joined Threat Management Group in 2007. Since then, she has served TMG in several different roles, the most recent being a promotion to Director of Operations which includes overseeing the Products, Training, and Human Resources Divisions of the company.

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Prior to joining TMG, Hannah served in the US Navy for 8 years as an Electrician’s Mate onboard the USS George Washington and at the Nuclear Power Training Unit as an Instructor.  In 2006, Hannah was proudly promoted to Chief Petty Officer.

Hannah currently serves as a Councilmember for the City of Goose Creek.  She was elected in 2020 by a wide margin and enjoys the opportunity to build a sense of community within the City and provide top notch Police, Fire, Recreation, Water, and Sanitation services to the residents.

Hannah recently joined the Board of Directors of OneNation Foundation, a 501c3 organization whose mission is to honor veterans, first responders, and their families through acts of service and financial assistance.  Her philanthropic efforts also include raising money for her church and previously serving as an Ambassador for the EOD Warrior Foundation.

Scott Hooley

Program Manager Special Missions Training Center


Scott Hooley joined Threat Management Group in 2019 and serves as the Lead Instructor and Program Manager for the Chemical, Biological, Radiological, and Nuclear (CBRN) training team. His team provides CBRN training to field units across the United States and its territories.  Scott is a retired U. S. Coast Guard Senior Chief Boatswain’s Mate with a background in small boat operations and command.  He has served as the Officer in Charge of three Coast Guard boat stations.  He also has extensive an extensive background in the Coast Guard training systems and unit assessments and has served at two of the Coast Guard’s training centers.


Brian Pavlus

Program Manager and Tactical Diving Instructor


Brian Pavlus joined Threat Management Group in August 2023 as a Program Manager and MK-25 Tactical Dive Instructor for Specialized Diving Division. Prior to joining Threat Management Group, Mr. Pavlus served as the Accounting & Finance Manager at a company in Panama City, Florida for three years. Mr. Pavlus also served on active duty in the U.S. Marine Corps., retiring at the rank of Gunnery Sergeant (E-7) after 20 years of distinguished service. While on active duty, he served as a Reconnaissance Marine from 1997 to 2016 and received extensive training across a wide variety of specialized disciplines. Brian had the honor of serving in combat theaters, as a formal school instructor at the Marine Combatant Dive School and Special Operations Training Group, and as the Operations Chief for the Maritime Raid Force on the 31st Marine Expeditionary Unit (MEU) in the Pacific Region.

More about Brian

In 2021, Mr. Pavlus earned a Bachelor of Arts in Business Leadership with honors from The Baptist College of Florida in Graceville, Florida. He and his wife have been married for over 23 years and have been blessed with three wonderful sons. During his spare time Brian also enjoys spending time outdoors, volunteering, traveling, reading, and pursuing higher education.