Ancillary K9

Ancillary K9 are Denver's dog training experts, transforming challenging behaviors through personalized, intensive training. Our certified dog trainers have extensive experience addressing aggression, anxiety, reactivity, fear, and obedience issues. We deliver rapid, lasting results tailored to your dog's unique needs. Our programs empower both you and your dog for long-term success. Backed by our Lifetime Training Assurance, we guarantee results as well as free retraining if your dog ever regresses. Offering private training and 24/7 support, we build a harmonious relationship between you and your dog.