Giesen is one of New Zealand’s most successful family-owned wineries, founded by brothers Theo, Alex, and Marcel in 1981. While they are globally recognized for their Marlborough Sauvignon Blanc and Riesling, their 2026 portfolio is a diverse mix of everyday value, premium organic single-vineyard labels, and their industry-leading non-alcoholic range.
Giesen is one of New Zealand’s most successful family-owned wineries, founded by brothers Theo, Alex, and Marcel in 1981. While they are globally recognized for their Marlborough Sauvignon Blanc and Riesling, their 2026 portfolio is a diverse mix of everyday value, premium organic single-vineyard labels, and their industry-leading non-alcoholic range.