Engaging the future...

Our government segment provides a wide array of technical services and solutions, primarily to U.S. federal, state and local government agencies. Our commercial segment provides technology-driven consulting, systems integration and outsourcing services and solutions in selected commercial markets.

Featured Services

Systems Engineering and Integration

S4 develops and integrates complete systems of all sizes, bringing to bear our unique combination of deep scientific and technical expertise, broad experience in the environments in which the systems will be used, and strong systems engineering and program management processes and skills.



S4 offers services in the core areas of software engineering, systems engineering, management consulting, and technology integration.

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At S4 we believe that a great career includes a competitive salary for a challenging and rewarding position, a comprehensive benefits package ...read more



We work as a team to ensure we exceed expectations and deliver results that have immediate impact and long term significance


Company Profile


The company was established in August of 1998 to help organizations leverage today’s new and emerging technologies, as they strive toward their information...



SBA Certifications


S4 is certified by the Small Business Administration as a SDB small business. S4 is also a Service Disabled Veteran Owned business.


News & Events


S4 Recertified as SDVOSB

VA VIP program recertified S4 for 3 more years.



S4 Accepted to the FAA eFAST IDIQ Contract

FAA selected S4 and one of the SDVOSB for its eFAST IDIQ program.



S4 Awarded DoD $25M 5-Year Contract 

This single-award contract allows S4 to continue to provide mission critical system support.



Service-Disabled Veteran-Owned Certification

The Department of Veteran Affairs just vetted S4 as a Service-Disabled Veteran-Owned small business (SDVOSB).