C&K is now part of Littelfuse, Inc. Founded in 1928, C&K is one of the world’s most trusted brands of high-quality electromechanical switches. The company’s unmatched custom design capabilities are recognized globally by design engineers who demand reliable switch performance. C&K offers more than 55,000 standard products and 8.5 million switch combinations to companies that design, manufacture and distribute electronics products. Used in automotive, industrial, IoT, wearables, medical, telecom, consumer products, aerospace, and POS terminals, C&K products include tactile, pushbutton, snap-acting, toggle, rocker, detect, DIP, keyswitch, navigation, rotary, slide, switchlock, thumbwheel, smart card readers, high-rel connectors and custom assemblies.
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The C&K annual revenue was $404 million in 2026.
Bill Agnatovech is the Engineering Director of C&K.
227 people are employed at C&K.
C&K is based in Waltham, Massachusetts.
The NAICS codes for C&K are [335, 33, 3359].
The SIC codes for C&K are [36, 3699, 369].