S4 Inc. provides Enterprise IT Services, Cybersecurity and Professional Services to Department of Defense (DoD), Department of Homeland Security (DHS) and US Government customers. We use our agility, strategy and insight to deliver leading edge solutions to both peacetime planners and war fighters within scope, schedule and budget. Headquartered in Bedford, MA, S4 has offices in Ashburn, VA; Colorado Springs, CO; Dayton, OH; Huntsville, AL; and Omaha, NE as well as several project sites across the United States. S4 Inc. is a Small Disadvantaged Business (SDB) with ISO 9001:2015, ISO 27001:2013 and ISO/IEC 20000-1:2018 certifications.