S4 Inc. is a small disadvantaged business specializing in Enterprise Information Technology Solutions and Advisory & Assistance Services. Since 1999, S4 has provided responsive, mission critical support to US Government and Department of Defense (DoD) customers. We have assembled the resources and domain knowledge to deliver leading edge solutions to both peacetime planners and war fighters within scope, on time and in budget. Headquartered in Bedford, MA, S4 has offices in Bellevue, NE, Colorado Springs, CO, Dayton, OH and Huntsville, AL, as well as several project sites across the United States. We are rated at CMMI-SVC Level 2, and ISO 9001:2008 certified at headquarters.