S4 Inc.   8 New England Executive Park, Suite 180 Burlington, Massachusetts 01803  Telephone: (781) 273-1600 Facsimile: (781) 273-1900 Email: cshah@s4inc.com Web Home Page: www.s4inc.com President and Chief Executive Officer: Chandu Shah Vice President of IT and Engineering Support: Steve Kerns Business Focus: S4 Inc., a professional services and consulting firm, specializes in providing enterprise information technology (IT) solutions and advisory and assistance services (A&AS) to U.S. government and Department of Defense customers. Headquartered in Burlington, Massachusetts, S4 has offices in Colorado Springs, Colorado, and Dayton, Ohio, as well as several project sites across the United States. S4 is a small disadvantaged business (SDB) and holds an ISO 9001:2008 certification at headquarters. Products/ Services: Enterprise IT, A&AS, engineering and technical services, management and professional support, network security, systems engineering, help desk, information assurance, program management, requirements analysis, enterprise architecture. Clients: DOD, DHS, NORAD and U.S. Northern Command (N-NC), CENTCOM, SOCOM, STRATCOM, TRANSCOM, DISA, U.S. Air Force, U.S. Army and U.S. Navy. Business Categories: Accreditation/Certification Acquisition Management App Development Application Service Providers Collaborative Tools Consulting Cyber Data Storage Engineering & Technical Support Firewalls Information Assurance Information Management Information Security Information Systems Network Management Networking Technologies Professional Services Record Management Risk Management Secure Communications Security Assessments Software Strategic Planning Systems Engineering/Technical Assistance Systems Integration Teleconferencing Video Teleconferencing Vulnerability Assessment Small Business Status: Federally-designated Small Business Minority Owned NAICS Industry: Administrative Management and General Management Consulting Services All Other Information Services All Other Support Services Computer Facilities Management Services Computer Systems Design Services Custom Computer Programming Services Data Processing, Hosting, and Related Services Document Preparation Services Engineering Services Facilities Support Services Internet Publishing and Broadcasting and Web Search Portals Marketing Consulting Services Media Representatives Office Administrative Services Other Commercial Printing Other Computer Related Services Other Management Consulting Services Other Scientific and Technical Consulting Services Public Relations Agencies Reseach and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) Wired Telecommunications Carriers