The winery lies 20 miles outside of Santiago in the Maipo Valley and is currently Wines of Chile’s winery of the year.
It exports premium wine to 70 countries and was previously distributed by Moreno.
Now it has moved into Gonzalez Byass’ increasing portfolio, which includes fine wine, sherry and port.
Ernesto Müller, general manager at Viña Undurraga, said: “Our focus is on making quality wines with constant innovation, as demonstrated by the TH Series, which has led to international recognition for our winery.
"We share this philosophy with Gonzalez Byass, who have been successful in building their premium wine business despite the current challenges in the market. We believe that Gonzalez Byass will take the Undurraga brand to the next stage of development in the UK.”
Martin Skelton, managing director at Gonzalez Byass UK, added: “Undurraga joins an international portfolio of wines, including Quinta do Noval, Wirra Wirra and Jackson Estate.
“Undurraga is one of the premium Chilean brands and it has just been voted winery of the year by the Wines of Chile Association. Its TH Series of varietal wines is setting the benchmark for premium Chilean wine. I hope they will be generous with their allocations to the UK market.”