Joshua Denny

Professional Dog Trainer

Joshua Denny is a professional dog trainer and canine behavioral specialist with more than 10 years of experience helping dogs and owners build stronger, healthier relationships. His philosophy is simple: dog training is not just an activity, it is communication, and the quality of that communication shapes the quality of the human-canine bond.

Joshua’s passion for canine behavior began early in life while accompanying his father to a family friend’s AKC Pit Bull kennel. That early fascination evolved into a lifelong commitment to understanding dog behavior and helping owners better connect with their dogs.

A United States Air Force veteran, Joshua served as a military police officer and worked alongside military working dog teams in decoy work, bomb detection, and law enforcement operations. His professional education includes formal study through the Michael Ellis School for Dog Trainers, advanced behavioral work through John Van Olden’s Canine Trade Group, and ongoing continuing education through seminars and behavioral neuroscience research to ensure his methods remain modern, evidence-based, and effective.

Joshua’s training approach is grounded in behavioral psychology and combines classical and operant conditioning within a humane, balanced framework. Because no two dogs are alike, every training program is customized around the dog’s age, breed, temperament, motivation, and life experience. He believes lasting success begins with coaching the owner first, helping create clear, consistent communication and structure that allows dogs to succeed.

He specializes in behavior modification for reactivity, aggression, anxiety, and impulse control, while also offering Service Dog training designed to meet DOT, CGC, PAT, and DPT standards. Joshua has successfully worked with dogs ranging from 5-pound teacup Yorkies to 220-pound mastiffs, always focusing on engagement, clarity, and reliable real-world behavior.

Super Sonic Dog Training is proud to have Joshua as part of its team. Supported by a network of experienced professionals through Canine Trade Group, Joshua is committed to helping Seattle-area families work through even the most challenging behavior concerns and achieve lasting training success.

Mark Peña

Owner 

With over a decade of expert dog training knowledge and experience paired with genuine compassion, Mark strives to help families and their dogs find harmony in the home. He does so by teaching balanced, science-based training methods that improve both behavior and communication between canines and their humans. Mark offers a full range of companion dog training from puppy essentials to reliable fundamental obedience, and specializes in behavior modification to resolve issues such as reactivity, anxiety, and aggression. In addition, Mark offers Service Dog training focusing on Public Access Training, Deep Pressure Therapy, Canine Good Citizen Test Items, and DOT Service Animal Transportation requirements.

Growing up, Mark was surrounded by dogs and has always shared a natural affinity with them. He found inspiration by watching his father train their family dogs to flush out and retrieve game. Mark was also encouraged by his brother who trained his own dog and showed Mark how to train one of her pups to be a companion dog for their grandparents. It was a labor of love that by chance led to his own independent business thanks to the stewardship of renown U.S. dog trainer, John Van Olden, founder of the Canine Trade Group (CTG).

Mark earned his CTG certification as a professional dog trainer and behavior specialist through rigorous study and training under John Van Olden’s tutelage. He is proud to be a part of the CTG network of trainers dedicated to the highest standards of conduct, knowledge, training, and service that sets them apart from other dog trainers. Mark solidified his training through the astute guidance of Tom Porier, CTG member, and owner of Camelot Dog Training. Tom helped Mark turn that expert knowledge into practical application which he used to serve the New York City and Tri-State area. Mark also received vital Canine Play Group training from nationally recognized trainer, Aimee Sadler, and her Dogs Playing For Life program.

Mark is pleased to be partnering with Joshua Denny, Lead Trainer for Super Sonic Dog Training, and is grateful for the decade-plus experience he brings to the team.  As commitment-based dog trainers, they will work with you and your dog until all your training goals are achieved. Mark will be glad to arrange an in-home consultation to assess your dog’s behavior and explain in greater detail how Super Sonic’s methodology and protocol can further benefit you and your dog.