Dog Obedience Training business. This business could be the best in show for you if you're a pro with dogs. Business Overview Dog obedience training is a multimillion-dollar industry, and continues to grow by double digits as more and more dog owners realize the benefits of professional obedience training. Training classes can be held at your home in a one-on-one or group format, or if your home is not suitable you can travel to your customers' homes and train one-on-one....