EMS Development Corporation is a world-class manufacturer of defense electronic systems, devices and specialized components.

Ultra Electronics, EMS Development Corporation

This organization has three important missions: (1) EMS' sophisticated magnetic and electronic systems for Naval platforms, (2) MSI's innovative Human-Machine Interface products, and (3) the RFI Specialty Components brands of EMC filters, Capacitors, and custom Magnetics. All serve their customers with superior service and innovative products that meet or exceed expectations. Everything that EMS supplies to its clients has been designed and built in the USA at one of the two facilities that are operated by EMS. Additional information on these businesses and their product lines is available in this web site.