SOSi Adds New Cyber Security and Software Development Capabilities with Acquisition of STG Group Holdings, Inc.

RESTON, Va. (April 11, 2018) – SOS International LLC (SOSi) announced today the acquisition of STG Group Holdings, Inc. (STG), a leading provider of mission-critical technology, cyber, and data solutions to the U.S. defense, diplomatic and intelligence communities.

The acquisition expands SOSi’s current contract and customer base and adds new, technical capabilities in cyber security, information assurance, software development, and data analytics to its portfolio. STG is SOSi’s third and largest acquisition since 2016, and the two companies, together, employ 1,300 employees worldwide.

“SOSi and STG have thirty-year legacies serving the national security community. We have complementary missions, customers and competencies” said Julian Setian, SOSi President and CEO. “Our goal is to be the leading middle-market company in the federal technology services sector, differentiated by our private ownership structure and mission focus.”

“The STG team serves critical national security and government missions on a daily basis. STG’s dedicated professionals will continue to build on that legacy alongside their SOSi colleagues,” said Phil Lacombe, President and CEO of STG.  

Cowen served as SOSi’s exclusive financial advisor and Holland & Knight acted as legal counsel.  Raymond James & Associates, Inc. served as STG’s exclusive financial advisor and Pillsbury Winthrop Shaw Pittman LLP acted as legal counsel.


SOSi is a family-owned, mid-tier government services integrator that works principally in the defense and intelligence sectors. Founded in 1989 to provide specialized analytical services to the U.S. law enforcement community, the company has evolved into an international solutions provider with experience in 30 countries worldwide. SOSi provides intelligence, technology and project-management solutions to large, government and private-sector organizations and is known for its innovation, flexibility and agility. For more information, visit and connect with us on LinkedInFacebook and Twitter.


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