McDonald’s Coke
In 1955. McDonald’s owner Ray Kroc asked Coca-Cola if they can provide fountain drinks for his chain of fast-food restaurants. Coca-Cola and the Golden Arches have combined their efforts and had an excellent relationship ever since. They partnered up on menu developments, and Coca-Cola even allows them to use their corporate facilities when globally expanding.

Source: Pinterest
But the best benefit is the actual drink. Did you ever notice that McDonald’s Coke tastes the best? Well, it’s not your imagination; there is a reason behind it. Coca-Cola ships its syrup in stainless steel containers exclusively to McDonald’s, instead of the plastic bags they use for everything else. As a result, McDonald’s has the most delicious Coke you can get.