This report is a list of some of the nation’s dog breeding kennels that are of high concern to The HSUS due to repeated problems with animal health or animal care. It is not a list of all puppy mills, nor a list of all problematic facilities. The list does not include other problematic puppy mill dealers, such as brokers and pet stores, unless the operators are also breeding dogs.
The Humane Society of the United States, "The Horrible Hundred 2015: A Sampling of Problem Puppy Mills in the United States" (2015). Puppy Mills. 3.