Paris-based Accor oversees 4,900 hotels and residences worldwide under brands such as Sofitel, Pullman, Ibis, Novotel and Onefinestay. The group's newest flags include Tribe, a midscale, lifestyle brand unveiled last March, and Greet, an ecofriendly, budget brand launched in mid-September that targets travelers "seeking to add meaning to their purchases and reduce their impact on the planet."