JIHOSTROJ a.s., based in Velesin, Czech Republic, is a company that manufactures hydraulic and aircraft fuel pumps, as well as other components for the automotive and aircraft industry - particularly flight control units, propeller governors, and fuel pumps for Walter M601 turboprop engines.

During World War II, Jihostroj manufactured products for the German Air Force.

The Jihostroj plant survived the war intact, and in 1946, the company was nationalized and merged with PAL n.e.

In 1953, JIKOV was separated once again, and a new entity was created called JIHOceske STROJirny - JIHOSTROJ (South-Bohemian Machine-works).

The company supplies piston engine and constant speed propellers for RVs, Extra 300, Pitts, and Sukhoi Su-31.