Both companies are mainly focused on the on-trade, but the GWW shop will be retained as part of the deal.
Managing director Philip Addis, who founded GWW 27 years ago, joins the Enotria board as regional sales director.
Enotria chief executive Alison Levett said: “Like Enotria, Great Western Wine has been founded on a passion for wine, a portfolio of fabulous family wine estates and a total commitment to service, so I’m confident that we’ll have an exciting time working together over the coming years.”?Addis said: “This is a new and exciting era for Great Western Wine, its staff and suppliers. Philosophically, Enotria are surprisingly similar to us and together I believe we will be able to assemble the very finest and most interesting range of wines available in the UK.
“I’m looking forward to what will be a fabulous new challenge.”