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| Founded | 1930 |
|---|---|
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Graupner/SJ GmbH is a radio control equipment manufacturing company founded in 1930 by Johannes Graupner in Stuttgart-Wangen. Taken over in 1953 by son Hans, the company became the leading designer and producer of aircraft and boat radio-controlled models. Providing the world RC market with RC radios and on board sensor equipment, it was purchased from receivership in 2013 by South Korean manufacturer SJ Ltd.In 2014, the name of SJ Inc. was changed to Graupner Co.Ltd.,[1] henceforth the name Graupner referring to the South Korean company.