Triple Crown used to have their feeds milled in the southeast by Southern States. Cargill bought Southern States mills. Triple Crown did not want to deal with Cargill and now have their feeds made in Purina Animal Nutrition’s mills in the areas formerly covered by Southern States. https://www.triplecrownfeed.com/purinafaq/
I ran in to a Southern States rep in the feed store,and he told me that TC have a nutritionist present whenever Purina is milling their feeds.
Nestle Purina manufactures Beneful, Dog Chow, Cat Chow, and Pro Plan pet foods, which you can find in national grocery stores and pet stores. Nestle Purina DOES use the checkerboard on their pet products. Years ago, Purina was one company, owned by Ralston. The company split many years ago and Land O’Lakes is the parent company to Purina Mills (now Purina Animal Nutrition) and Nestle ended up with the Purina pet side.