1891

October 15, 1891 the company was incorporated as Pratt & Englund Company in Chicago, Illinois as a manufacturer of portable streetcar fare registers.

1903

Company name is changed to the International Register Company (IRC) with the purchase of the New Haven Car Register Company.

1904

Became leading fare register manufacturer in the United States.

1917

Company president Arthur Woodward invents wind vine sight for machine guns for combat in World War I

1930

Began manufacturing Coin Meters. This was the company’s introduction to clock-actuated devices, which was the precursor to the world-renown world class timers.

1941

Began manufacturing 20 mm shells, producing over 20 million during the course of the World War II, along with aircraft controls and other munitions items.

1945

The first time switch the “Inter-Matic" is introduced and rapidly accepted due to the high quality and low price. The “Inter-Matic” time switch was used to control electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners.

1952

Introduced its first consumer timer product, the Time-All, which controlled various household lights and devices. The Time-All is still manufactured today.

1956

Company foundation in St. Georgen Schwarzwald by Dieter Grässlin – Vision: Part-assembly of clockworks. IRC introduces the world-renowned T101 mechanical time switch; it still remains a vital component in the mechanical time switch industry.

1957

Grässlin introduces its first product, an hour counter.

1958

IRC introduces pool and spa controls line to the industrial market. The pool and spa control line remains a valuable product line today.

1961

The IRC Spring Grove office opens. This is the current location of the company headquarters.

1964

Grässlin first produces time switches.

1969

IRC reaches $15 million in sales. Grässlin produces first DIN-rail products

1971

Grässlin opens new factory building in St. Georgen, Germany.

1972

International Register Company is officially renamed Intermatic Incorporated.

1989

Intermatic opens a new distribution center in Richmond, Illinois.

1990

The company reaches almost $100 million in sales, and acquires two new lines--industrial surge and professional landscape lighting products.

2007

Intermatic acquires Grässlin Controls Corp (GC), a leading international manufacturer of time switch technology, light and temperature controls, and tariff time switches.

2010

Grässlin by Intermatic introduces LAN and power technology.

2011

Intermatic launches a new line of energy-saving, web-based controls with the ET90000 Series. Intermatic also begins offering a wider variety of energy saving products, including Occupancy and Vacancy Sensors.

2012

Grässlin by Intermatic introduces the talento pro series.

2013

Grässlin by Intermatic introduces the talis line of movement and presence detectors.

2014

Grässlin by Intermatic relaunches the successful talento TOP as talento TOP pro.

2016

Intermatic celebrates 125 years in business. The Grässlin division celebrates 60 years in business.

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