Mark Cleek

STG Inc.

SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors. We were founded in 1989 to provide specialized analytical services to the U.S. law enforcement community and over the past 25 years have evolved into an international solutions provider with experience in 30 countries worldwide. We provide intelligence, technology and project-management solutions to large, government and private-sector organizations and are known for our energy, agility, flexibility and proven experience in many of the most austere areas of the world. In 2018, STG was acquired by SOS International LLC (SOSi).