In 1973, British food company J. Lyons and Co. purchased Baskin-Robbins from United Brands. J. Lyons and Co. then merged with Allied Breweries, becoming Allied-Lyons in 1978. Allied-Lyons acquired Dunkin' Donuts in 1990. The same year, Allied-Lyons acquired Mister Donut.
In 1994, Allied-Lyons merged with Pedro Domecq S.A., becoming Allied Domecq. The restaurant operations were merged under a subsidiary named Allied Domecq Quick Service Restaurants. In 1997, Togo's was acquired by Allied Domecq.
In 2004, Allied Domecq Quick Service Restaurants was renamed Dunkin' Brands, Inc..
On December 12, 2005, Pernod Ricard, which had just taken control of Allied Domecq, announced the sale of Dunkin' Brands to a consortium of private equity firms consisting of Bain Capital, The Carlyle Group and Thomas H. Lee Partners for $2.425 billion in cash. Dunkin' Brands, Inc. was renamed Dunkin' Brands Group, Inc. after the transaction.
On November 30, 2007, Dunkin' Brands sold Togo's to Mainsail Partners, a San Francisco-based private equity firm, in partnership with Tony Gioia, a former president of Baskin-Robbins.