Custom User Interface and HMI Solutions since 1982. CSI Keyboards is a global leading manufacturer of custom designed user interface and HMI solutions including: membrane switches, elastomer rubber keypads, touch screen and display integrated assemblies, capacitive switches, plastic injection molded assemblies, and PCB assemblies. Located in Peabody, Massachusetts, our ISO 9001: 2015 certified company has been a leader in the keypad and HMI industry for over 35 years serving the medical, military, industrial controls, aerospace, commercial and marine industries. CSI Keyboards designs, engineers, and manufactures our keypads, printed electronics and user interfaces at our headquarters in Peabody, MA, USA, in addition to our offshore manufacturing capabilities.