SIOS Corporation, formerly SIOS Technology, Inc., is primarily engaged in the development and sale of open source software (OSS) products. The Company operates through two business segments. The Open System Base segment provides basic software products, including the LifeKeeper, SIOS iQ, Red Hat Enterprise Linux, which is a kind of Linux operating system (OS), and other Linux-related software. This segment also offers OSS-related consulting services. The Application segment is involved in the provision of multi function peripheral (MFP) related software products, the development, sales and maintenance of management support systems for financial institutions, the provision of cloud service Gluegent series, the consignment development of corporate information systems, consulting services for various information systems.