SSI Electronics

SSI Electronics is a designer and manufacturer of custom human-machine interfaces (HMIs) and medical circuits headquartered in Grand Rapids, Michigan. The company specializes in membrane switches, rubber keypads, flexible circuits, graphic overlays, touch screens, capacitance switches, and hybrid keypads for diverse industrial applications. A key specialty is disposable medical circuits, electrodes, and sensors used for diagnosis and biological monitoring in healthcare settings. SSI serves over 300 companies across 15 industries, ranging from large medical OEMs to startups. The company provides end-to-end support from design through manufacturing, with manufacturing facilities domestically and overseas, plus local representation in 15 US cities. Products are engineered for medical-grade reliability and competitive global pricing. While the site does not explicitly list FDA, ISO, or CE certifications, the emphasis on medical sensors and disposable medical circuits indicates regulatory compliance is integral to their operations.