Intermatic Incorporated is an American manufacturer of
time switches headquartered in
Spring Grove, Illinois. Intermatic was founded in 1891 in
Chicago, Illinois as the ''International Register Company'' to produce
fare registers.
The company's founder was A.H. Woodward who held several patents on fare registers (mechanical devices for recording passenger ticket and ridership).

The company introduced its first lighting timer in 1945, and today makes timing and control systems for line and low voltage systems used in residential, commercial, government, and industrial systems.
The company sells the ''Time-All'' line of timers for consumer applications.
References
Electronics companies established in 1891
1891 establishments in Illinois
Companies based in McHenry County, Illinois
Manufacturing companies based in Illinois
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