Natus Medical Inc, also is a division of "Excel-Tech, Ltd (XLTEK) is a medical technology company that designs, develops and sells proprietary medical devices. XLTEK's core business consists of its Neuro Diagnostic Equipment, used by neurology specialists to assist in the diagnosis and monitoring of the central and peripheral nervous systems. These core products are sold into three main markets: the neurophysiology market, the epilepsy market, and the sleep disorders market." XLTEK is on the list of Companies That Charge for Technical Support.