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The Loyal Hound Dog Training is Denver, Colorado’s premier aggressive dog training and dog obedience training company! We specialize in regionally-renowned, CUSTOMIZED training programs, dog obedience training, dog behavior modification, fixing dog aggression, human aggression, resource guarding, separation anxiety, fear issues, anxiety issues, leash aggression, leash reactivity, pulling on leash, jumping on people, counter surfing, stealing food, chewing, barking problems, running away, not listening, not releasing items, growling, snapping, biting, door bolting, and more! We also offer professional dog obedience training. Our extremely high success rate with dog aggression issues and other major behavioral problems have earned us a reputation as one of the best dog training company in Denver. Many other dog trainers will refer their more serious cases to The Loyal Hound for rehabilitation. In addition to the services mentioned above, we also offer cutting-edge low-level, e-collar off-leash training for ALL breeds of varying ages, sizes, and temperaments - read more HERE. If you would like to have a dog that comes to you every time you call them, walks calmly at your side without pulling or reactivity, and will hold place command when guests come to the door instead of jumping on them, without a leash, then we are the training company for you!




Proudly presenting: Juliet and her XL American Bully, Odin! Odin helps us successfully rehabilitate some of the most aggressive/ reactive dogs in Denver. Big, small, fearful, confident, or timid; he handles them all with grace and skill, turning the most troubled canines into safer, balanced, environmentally neutral model doggy citizens! 


Did you know that The Loyal Hound offers UNLIMITED follow up sessions with all of our programs? We believe strongly in both the caliber of our work, and the dedication of our clients. However, we want to ensure that our clients feel that this investment is a worthwhile one! Training equipment (prong, and/or e collar, etc) is also included in all of our packages.


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Please check out our Pricing and Philosophy pages to ensure we are right for you before reaching out!



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We know that leashes can break/be chewed through by a panicked or punky dog. Or that owners can drop or lose them unexpectedly if their dog lunges suddenly or reacts aggressively to another dog or some other environmental (which the two Great Dane pups in the video below did this on the regular prior to coming in). So, instead of crossing our fingers and hoping that the unexpected and “life” doesn’t happen (which it always does), we simply train for it instead and don’t rely on physical force and restraint. We rely instead on teaching the dogs impulse control, accountability, and that there are consequences. This keeps the public and the dogs safe, and maintains an awesome quality of life for our owners. Our training doesn’t eliminate risk, but sure as heck mitigates it significantly. 


The client above had struggled for many years with their two 140 lb Great Danes. While of sweet dispositions, these two beasties were completely out of control. She could not physically control one, and certainly not two at the same time. Not on leash, and definitely not off-leash. Here, we are proofing the dogs’ heel in my neighborhood to empower the client and show her that physical strength and muscle will never work alone to manage a powerful dog. Advanced obedience training is absolutely the magic missing link that changed not only the pups’ states of mind, but also upped the handler’s relevancy in a way she never thought possible. Seeing someone cry from happiness because their dogs (who were notorious for bolting) recall on a dime when called, and calmly walk at their side regardless of the world happening around them? Worth 10x more to us than what they spent on our BOARD AND TRAIN

Here at The Loyal Hound, we will figuratively hold your hand and guide you from the day you call us for help, to the day you no longer need us, however long that may take. 


Aggressive Dog Training Denver
Aggressive Dog Training Denver
Aggressive Dog Training Denver

My American Bully Winston enjoying some off-leash time on the trails with us! Without the control that low-level remote collar training can give owners, my intact, high drive working dog could not responsibly roam like this.

Camping Adventures in North Boulder with Raymond! Just three months prior, being off-leash safely with this rescue lab would not have been possible. Our two-week Board and Train helped Raymond learn that he didn't need to bite strangers or attack other dogs when he was uncertain, and to look to his owners for advocacy and guidance. 

Winston and Tobias doing some duration work in Place command. If you have a dog who rushes the door or attacks guests, this non-negotiable command with an implied "stay" can be a great way to provide inclusion, and safety for your guests. 

Aggressive Dog Training Denver

Winston helped a ton in the rehabilitation of these two Rottweilers! In just two weeks' time, the male, Jackson was no longer blowing off his owner's commands off- leash to go attack strange dogs, and Lexi's on-leash reactivity was eliminated entirely. They now enjoy calm walks in highly populated places, and get way more exercise since they can safely hike off leash with minimal management from their owners. 

We have zero problem with dogs snuggling on the couch provided they have no behavioral issues and there are clear boundaries, rules, and a healthy owner/dog dynamic in the household. My pups Winston and Tobias are always happy to showcase their exemplary manners. 

Aggressive Dog Training Denver

Joey the GSD is now a SAFE member of the family, and no longer barks threateningly and tries to bite guests coming into the house.  His owners were very tired of feeling like prisoners in their own home!  Sam and Karl, ages 7 and 11, love Joey, but is behavior was scaring them! The whole family feels much safer knowing that Joey is under control and knows how to conduct himself in the presence of new people. We trained this dog to defer to the owners and hold a down or place command when people come in.

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