Gustav Zumsteg (11 October 1915 – 17 June 2005) was a Swiss art collector, silk merchant and restaurateur.
[5][6] In 1957 he met Yves Saint Laurent, whose collections were henceforth influenced by Zumsteg's designs and Abraham's fabrics.
[4] He mainly focused on textiles for haute couture and began Abraham's collaboration with well known Parisian fashion houses[7] — not just with Cristóbal Balenciaga[8] but also Christian Dior, Hubert de Givenchy, Coco Chanel, and Emanuel Ungaro.
[10] The production was outsourced to manufactories in France and Italy who implemented the work of Paris and Lyon based design teams led by Zumsteg.
[13] As an art collector until his death in 2005, he ensured that guests could dine in his Zürich restaurant surrounded by the works of world-famous artists -among others Joan Miró, Marc Chagall, Pierre Bonnard, Georges Braque, Alberto Giacometti and Jean Tinguely.