[3] Thor Industries, Inc. was founded on August 29, 1980,[4] when Wade Thompson and Peter Busch Orthwein acquired Airstream from Beatrice Foods.

[11] Thor also continued acquiring RV and travel trailer makers, including Indiana-based Dutchmen in 1991[12] and Four Winds International (also based in Indiana) in 1992.

[15] In 1996, the company established Thor California, an RV manufacturer based in its namesake state[16] with models like the Tahoe and Wanderer.

[18] The company finalized a $145-million deal in 2001 to acquire Keystone RV, an Elkhart, Indiana-based manufacturer of travel trailers and fifth wheels.

The deal was one of the largest in the history of the company and gave Thor a 25% market share in travel trailers and fifth wheels.

[21] In May 2005, Thor acquired Goshen Coach, a bus manufacturer from Indiana that had filed for Chapter 11 bankruptcy earlier in the month.

Krystal was acquired through Thor's ElDorado National subsidiary and operations were moved to the Salina, Kansas facility.

Federal was acquired through Thor's Champion subsidiary and operations were moved to the Imlay City, Michigan facility.

[32] In June 2013, Thor purchased the production site in Wakarusa, Indiana that formerly housed the manufacturing operations of Navistar International.

[35] It also acquired the assets of Livin Lite RV's in 2013,[36] as well as Bison Coach, a manufacturer of horse trailers that have RV-style living quarters.

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.

[40] 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.

[44] Airstream sells numerous models including the Flying Cloud, Bambi, Classic, Nest, International Signature, and Basecamp.

It was founded in 1988 by Dave Hoefer, Glen M. Sylvester, and Larry Schrock and became the second-largest manufacturer of travel trailers and fifth wheels in the United States by 1990.

[49] It was acquired by Thor in 2001 and manufactures luxury travel trailers and fifth wheel brands including Cougar, Montana, Laredo, Passport, and Sprinter.