HaHistadrut HaKlalit shel HaOvdim B'Eretz Yisrael (Hebrew: ההסתדרות הכללית של העובדים בארץ ישראל‎, lit. "General Organisation of Workers in the Land of Israel"), known as the Histadrut, is Israel's organization of trade unions. Established in December 1920 during the British Mandate for Palestine, it became one of the most powerful institutions of Israel. Histadrut enterprises include: Koor Industries Ltd., Solel Boneh, and Kupat Holim Clalit.