Barton & Guestier is the oldest wine house in Bordeaux, releasing wines from across France produced in partnership with more than 200 winegrowers. It operates on a ngociant basis and wines are made at various locations, and are overseen by B&G winemakers.

The companys Bordeaux flagship is Chteau Magnol in the Haut-Mdoc, a property which also has a food and wine academy and a corporate hospitality hub. A range of other chteaux across the main Bordeaux appellations are also selected and released by B&G. The branded, generic Bordeaux wines include the famous 1725 and French Tom labels, Prince Noir and the Thomas Barton Reserve Mdoc.