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OUR TEAM


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Tim Halbakken

Tim Halbakken is the President and Managing Member for OSS International. He has over 25 years of combined private and public experience. He has served in a variety of positions including Chief of Campus Safety for a college, technical advisor for global security directors of numerous fortune 500 companies, and VIP protective agent for international travel of various corporate executives. He has served as a full time SWAT officer for a capital city police department, crimes against persons detective, firearms and subject control instructor, and spent 17 years as a hostage negotiator. In 2015 he was chosen as the Ohio Attorney General’s law enforcement trainer of the year with the Distinguished Law Enforcement Training Award.

Education: Grace College

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Marc McCreery

Colonel Marc McCreery has extensive experience in operations management, spanning over 25 years. Following service as an Army  Special Forces officer with 7th Special Forces Group, Marc entered the private sector working for GE for 17 years. While enjoying a successful career at GE, Marc continued with the military, serving with 19th Special Forces Group in the WV National Guard. His military career is equally as impressive. Marc served as a Team Leader, Company Commander, Battalion Commander, and Brigade Commander. During this time Marc, served in Afghanistan and Iraq and deployed to multiple other countries in Europe, the Middle East, Central and South America. Currently Marc serves as the AITEC Commander for the WV National Guard.

Education: U.S. Military Academy (West Point)

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Chad Williams

SGM Chad Williams served in the U.S. Army, with over 25 years as a member of U.S. Army Special Forces, retiring at the rank of Sergeant Major in 2015. During his time in Special Forces Chad held a multitude of key positions to include Special Forces Team Sergeant, Battalion Operations Sergeant Major, Company Sergeant Major and as an instructor at the Joint Special Operations University. His key deployments include Afghanistan, Iraq and the Balkans as well as multiple deployments to Europe and the Middle East. In addition to serving in the military, Chad served as a Homicide Detective with the Columbus Division of Police in Columbus, OH. In 2016, Chad retired from the Columbus Division of Police.

Education: Ohio University



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" OSS International is one of the most professional and comprehensive executive protection firms out there today! I have seen them plan and stage major personnel extractions from hostile foreign nations, and provide discreet concierge-level security for executives and visiting VIP's. They can be trusted with every facet of the protection mission and understand the nuances and optics of how their Protectees are seen in the public eye. They are a qualified veteran-owned group that is competent on every continent. "

— R. COLLIVER, SECURITY DIRECTOR