Founded in 1984, Criticare Technologies, Inc. (CTI) is an international medical device company headquartered in North Kingstown, RI. CTI develops, markets and distributes a wide range of patient monitoring devices and anesthetic gas monitoring systems which incorporate technological innovation with cost-effective features. CTI products address patient safety concerns and monitoring needs in anesthesia, critical care, respiratory care, transport and outpatient care environments. Comprehensive customer and technical support programs make even its most advanced systems consistently productive.

Criticare Systems Inc. (CSI) develops, manufactures and markets patient monitoring systems and accessories used in anesthesia, critical care, medical transport and outpatient care settings. CSI products are sold through a world-wide direct sales and distributor network. The company is also active in developing highly technical niche markets through research and OEM partnerships. CSI provides the most advanced, affordable medical systems that reduce costs and improve patient management and safety in today's constantly changing healthcare environment. We are also committed to the development and application of proprietary technology across our product range; this gives us the advantage of having sole control over features, performance, reliability and cost of systems. In operation since 1984, CSI is headquartered in Waukesha, Wisconsin, USA, and is a subsidiary of Opto Cardiac Care Ltd. CSI facilities are ISO 13485 : 2003 certified.