Thomas Cook has named G Adventures, Just You and Travelsphere its new partners for Thomas Cook Tours.
Three new programmes created by the operators will be sold through Cook’s retail network of stores from this autumn.
More information on the new Thomas Cook Tours will be announced next month.
Kathryn Darbandi, UK director of retail and customer experience, said the partnership would enable Cook to offer the touring specialists’ "all-encompassing range" of itineraries to its customers.
Bruce Poon Tip, founder of G Adventures and owner of G Touring, added: “Thomas Cook has been an important partner for G Adventures and G Touring in the UK market over the past five years. I am delighted to see this partnership evolve as we embark on a new and exciting journey and positively change more lives through travel together.
“The combined strength of three market-leading brands, with a wealth of experience and vast diversity of product, means we are perfectly placed to drive success for Thomas Cook.”
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G Adventures is the world's largest small-group adventure travel company, offering more than 700 tours in 100 different countries, and service levels to meet all tastes, ages and budgets.