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For over 55 years, OTTO has been designing and manufacturing a full line of control switches and for over 25 years, audio accessories for unique and demanding applications. Located in Carpentersville, Illinois, we are recognized worldwide for superior performance and innovative products.

OTTO is a vertically integrated manufacturer with in-house injection molding, stamping, CNC machining, cable assembly and cable overmolding capabilities. Our strong mechanical, electrical and RF Design Engineering capability, world-class test lab and computer controlled production line testing is unmatched in the industry. OTTO markets its products through two divisions, OTTO Controls and OTTO Communications.