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Ready for real training?

Whether we’re your first choice or a last resort, Koru K9 will ensure that your canine companion is the perfect addition to your pack.

Troy Helming (SolarNinjaTroy)

Our husky was aggressive and bit a few people (mailman, biker & teenager) so we were really worried about him & having 2nd thoughts about rescuing him. But after 3 weeks with Koru K9, he’s like a different dog! He goes to his “Place” and stays calm when the same people come over that he […]

Lindsay Jarrett

I cannot say enough good things about our experience with Koru K9, their staff and their trainers. We researched trainers and training programs extensively for our two year old French Bulldog who had developed reactivity towards other dogs and strange people. From the moment I reached out to Koru K9, I felt heard, supported, encouraged […]

Lauri Carter

Marianna at Koru K9 was a miracle worker! We rescued Solomon at 2.5 years old, we could tell he was a sweet dog but had major leash aggression, and he was jumping our fence to attack dogs walking by. Decidedly NOT good from a 80# pitbull! We were either going to be sued, he would […]

Camryn Reid

I went to Koru K9 after noticing unusually aggressive behavior from my 2 y/o pit bull mix, Mara, around other dogs. I had begun working with a positive reinforcement trainer and wasn’t seeing any results, in fact, it was getting worse and she got into it with my roommate’s dog. After having a small meltdown […]

Taryn El Bayar

Sarah Childers was an angel on earth who helped my boyfriend and I with our sweet pup. He was extremely reactive on leash with misdirected aggression, had no recall, and was full of behaviors that we could not fix no matter how hard we tried. We had tried 3 different trainers with all different approaches […]

Bo Whip

We had a great experience working with Koru! The office staff early on was attentive and supportive, and our trainer Chris was awesome to work with throughout. He was clear, straightforward, and great at helping us understand the psychology underlying some of our dog’s behaviors. Our main goal was to try and train our adult […]

Margie Messina

I reached out to Koru K9 when our 3 year old Akita began acting aggressively. Their staff was responsive, professional and extremely helpful. They connected us with a wonderful trainer who was able to help us. Our dog is able to stay in our home and we have a plan to manage his behavior so […]

Betsy Owens

If there were more than 5 stars as a rating option for my Koru K9 Rocky Mountain region trainer ,Jenny Zulauf, ll and the Philosophy behind Koru K 9 Dog Training’s strength,in the Boulder /Denver area,I would support it wholeheartedly. I had never thought I would consider a dog and train program but our latest […]

Jonathan Benstent

I did the 5 week board and train program for my GSP. My trainer Jenna Zulauf did a great job! After the program he has completely transformed and is now off leash trained. Thanks again!

Marie-Claire Gelbard

I cannot say enough about Jennie and how much she helped me and my 4-year old Havanese learn to communicate with one another. Billy had started to become very aggressive with other dogs and was fiercely protective of me. Even though Billy is a small 22 pound cutie, walks were becoming no fun and filled […]