The important French wine merchant house ( Négociant ) E. & M. Guigal, headquartered in Ampuis, is located in the north of the winegrowing region Rhone, It was founded in 1946 by Étienne Guigal. His son Marcel Guigal took over the management in 1971. He is considered one of the pioneers of the region, which contributed significantly to the quality improvement. By highest ratings of the wine journalist Robert M. Parker Marcel Guigal became internationally known in the mid-1980s. Today, he is counted among the best winemakers in the world. The own vineyards cover 20 hectares in the best steep slopes in the appellation Côte Rôtie However, grapes are purchased from many small winemakers. They mature for at least three years in new oak barrels and are bottled without fining and filtration. Among the best known are the standard bottling "Côtes Brune et Blonde", as well as the single-layer wines "La Mouline", "La Landonne", "La Turque" and "Château d'Ampuis". There will also be wines in the AC areas Condrieu. Côtes du Rhône. Gigondas. Hermitage and Tavel produced. In 1984, the company Vidal Fleury and later also De Vallouit and Jean-Louis Grippat was acquired.