John Cadwell, BSEE, MD saw a need for innovative and reliable neurophysiology instruments during his residency at the University of Washington School of Medicine in Seattle, Washington, USA. John used his experience in electrical engineering and medicine to design the world’s first microprocessor-controlled EMG instrument.

Our brands include Arc EEG, LTM and ICU cEEG; Cascade® IONM; Sierra® EMG and EP with integrated ultrasound; Easy® PSG and CadLink™ data management.

Today, we employ more than 110 people at headquarters, who contribute to research, hardware design, software coding, assembly, marketing, distribution, sales support, and customer support. We also have a network of sales and support representatives in the USA, and a growing international team based in China, Singapore, the Netherlands and Germany. We locally source most of our components in the Pacific Northwest, including printed circuit boards, plastic and metal casings, rubber protectors, fasteners and cables.

1979 - Today