Post Holdings is a consumer packaged goods company providing grocery products to American and international customers. Founded in 1895, the company has become a household brand with products including Honey Bunches of Oats cereal, Peter Pan peanut butter, and Simply Potatoes potato products. In addition to grocery stores, restaurant chains, and wholesalers, the company serves the military, e-commerce, and food service channels. Post Holdings made the Fortune 500 for the first time in 2025.

Lindsey Nicholson—UCG/Universal Images Group/Getty Images)