In 2000, Guigal bought and absorbed two other wineries: the estate Jean-Louis Grippat in Saint-Joseph and the Domaine de Vallouit, with vineyard holdings in Côte-Rôtie, Hermitage, Saint-Joseph and Crozes-Hermitage, which added some high-end vineyards in other appellations to the Guigal range.
Parker comments that "In the past 26 years I have spent visiting wineries and vignerons, I have never seen a producer so fanatical about quality as Marcel Guigal.
"[3] This attention contributed to the Rhône wines' improved international fame in general, and in particular led Côte-Rôtie to be seen more on par with Hermitage than in previous times.
[7] Guigal produces a wide range of red, white and rosé wine from the northern and southern Rhône appellations.
Guigals total vineyard holdings is slightly over 45 hectares (110 acres),[8] of which around half is in Côte-Rôtie.