Setra is a German bus division of EvoBus GmbH, itself a wholly owned subsidiary of the Daimler AG.
The name “Setra” comes from “selbsttragend” (self supporting). This refers to the integral nature of the construction of the vehicles back in the 1950s when competitor vehicles still featured a separate chassis and body (often manufactured by separate companies). It is also possible that, with an eye to export markets, the company was mindful that for non-German speakers, the name “Kässbohrer” is difficult to pronounce. Until 1995 the firm operated under the name Kässbohrer-Setra, but in that year economic difficulties enforced its sale to Daimler Benz (between 1998 and 2008 known, especially in the United States, by the name of its holding company Daimler Chrysler). Since 1995, Setra has been a member of the Daimler Benz subsidiary, EvoBus GmbH. (Wikipedia)