Thor Industries, Inc. is an American manufacturer of recreational vehicles (RVs). The company sells towable and motorized RVs through its subsidiaries brands including Airstream, Heartland RV, Jayco, Livin Lite RV, and others. The company's headquarters is in Elkhart, Indiana. It has manufacturing facilities in Michigan, Ohio, Indiana, Idaho, and Oregon.

Thor Industries, Inc. was founded on August 29, 1980, when Wade F. B. Thompson and Peter Busch Orthwein acquired Airstream from Beatrice Foods. The name "Thor" combined the first two letters of each entrepreneur's name.

In July 2016, Thor acquired Jayco Inc. for $576 million. Jayco, based in Middlebury, Indiana, had been the largest privately owned RV maker in the world prior to the sale. Jayco's subsidiares (including Starcraft RV, Highland Ridge, and Entegra Coach) also came under the Thor umbrella. 

In September 2018, it was announced that Thor had agreed to purchase Hymer, a German manufacturer of RVs, in a deal worth $2.45 billion in the largest acquisition in the company's history. Hymer is the largest RV manufacturer in Europe. As a result of the deal, Thor Industries became the largest RV manufacturer in the world. The sale was officially finalized in February 2019.

According to en.wikipedia