STG Inc. Employee Directory
IT Services and IT ConsultingVirginia, United States501-1000 Employees
STG Inc. operates from Reston, Virginia, in the IT services and consulting sector. Since 2018, it has been part of SOS International LLC (SOSi) following an acquisition. SOSi is a family-owned, mid-market government services contractor that concentrates on defense and intelligence work, providing intelligence analysis, technology-enabled capabilities, and project-management support to large government and commercial clients, including operations in austere environments. Founded in 1989, SOSi has built a global footprint with experience across roughly 30 countries. The company expanded its capabilities in May 2026 through an integration with Janes, combining SOSi's open-source data and real-time signals with Janes' analyst-validated military intelligence to help customers assess strategic influence, operational risk, and emerging threats within a single platform. STG remains part of this SOSi enterprise with its Reston base and a workforce described as several hundred personnel.