This article explores the role that corporations can play in the creation or failure of a sustainable society. A review of the concept of sustainability in the Australian Curriculum: Geography is made and then linked to a comparison of the legal framework guiding business activities of traditional corporations and those of B Corporations, which are guided by their own separate legislation. Business activities of a particular B Corporation in Australia, and other profit-oriented businesses in the same sector of the economy, are then compared in terms of four earth functions listed in the Australian Curriculum to determine if one is more sustainable than the other. This comparison concludes that the B Corporation is more sustainable than a traditional profit-oriented corporation in several respects, though it is not sustainable absolutely. The example explored is linked to curriculum outcomes and suggestions are made as to how teachers might apply this content and analysis when teaching for sustainability in their own classes.