Yes...I think there is...though I would not get a puppy from either one of them.
Some large scale commercial breeders do health certifications and do title their dogs....but they are doing this for a living. Most often the dogs are well looked after...clean and well fed, and given vet care...but how much attention can you give a kennel full of dogs?? Also, puppies are raised in a kennel....not a great place to be socialized and well balanced for 8 weeks.
Puppy mills don't do any health testing on their breeding dogs...usually squeeze out as many litters as they can from a dog...they don't care about quality...just quantity. The bottom line and making money from these dogs is what is important to them. If they can cut costs on food,care and vet bills they will.
They are also making their living from their dogs.
Gina