The cooperative "Collegium Wirtemberg - Weingärtner Rotenberg & Uhlbach eG" is located on the outskirts of Stuttgart (Remstal-Stuttgart area) in the German wine-growing region Wuerttemberg
, It was created in July 2007 by merging the Rotenberg and Uhlbach cooperatives. The wine cellar is located on Württembergstrasse at the end of the Untertürkheim district. After studying viticulture and oenology in Geisenheim, Dipl. Ing. Martin Kurrle is responsible as managing director and cellar master. Over 200 members cultivate 125 hectares of vineyards in the individual vineyards Schlossberg (Rotenberg) and Götzenberg (Uhlbach). Around three quarters are the red varieties Trollinger, Spätburgunder, Frühburgunder, Samtrot, Schwarzriesling, Lemberger, Cabernet Sauvignon, Merlot, St. Laurent, Acolon, Dornfelder, Heroldrebe, Portugieser and Syrah, and around a quarter with the white varieties Riesling, Silvaner , Pinot Blanc, Pinot Gris, Müller-Thurgau, Kerner, Traminer, Chardonnay and Sauvignon Blanc cultivated and processed. The white wines are aged in steel tanks or in wooden barrels. The red wines mature after mash fermentation and BSA in the classic wooden barrel and partly in barriques. The large product range includes wines in the lines of classics (collegium, site wines), Edition Wirtemberg, life style, cult (barrique) and sweet wines. In suitable years, ice wines are also pressed. Bottle-fermented sparkling wines and brandies (pomace, wine) are also produced.