SIOS Corp. engages in the development and sale of web application and information technology (IT) systems. It operates through the Open System Infrastructure and Application segments. The Open System Infrastructure segment offers LifeKeeper, a software that helps avoid system shutdown when IT systems fail, operational support systems, and consulting services. The Application segment provides multi-function product software, cloud solution, big data solution, and contract development of company information systems and related consulting services. The company was founded on May 23, 1997 and is headquartered in Tokyo, Japan.