I just learned from this infographic, which I found at Information is Beautiful, that Inca Kola is 50% owned by The Coca-Cola Company.

Three firms control 89% of US soft drink sales [1]. This dominance is obscured from us by the appearance of numerous choices on retailer shelves. Steve Hannaford refers to this as “pseudovariety,” or the illusion of diversity, concealing a lack of real choice [2]. To visualize the extent of pseudovariety in this industry we developed a cluster diagram to represent the number of soft drink brands and varieties found in the refrigerator cases of 94 Michigan retailers, along with their ownership connections.

via Philip H. Howard | Soft Drink Industry Structure.