Welcome::S4, LLC:: Welcome To Systems & System Software Solutions, LLC Our government segment provides a wide array of technical services and solutions, primarily to U.S. federal, state and local government agencies. AT Welcome To Systems & System Software Solutions, LLC Our government segment provides a wide array of technical services and solutions, primarily to U.S. federal, state and local government agencies. AT A GLANCE Our government segment provides a wide array of technical services and solutions, primarily to U.S. federal, state and local government agencies. Our commercial