Rent safe and private dog parks hosted by locals

David Adams photo

David Adams

Aug 7, 2026

Dog Trainers

Cynthia Howell

Dog trainer in Seattle

#142 in United States, #9 in Washington, #8 in Seattle

United States

Seattle

http://www.diamonddogsseattle.com

Service areas:

Georgetown, Beacon Hill, Capitol Hill, other areas by request

Support your dog trainer by sharing your story

My career with dogs began in 2003 at a large scale dog daycare in Seattle. I quickly saw how this unnatural, stressful environment was detrimental to the very dogs it was supposed to care for. I started a private dog walking and pet sitting service, Road Dog Walks, as an
alternative. Then, I was offered a position at a large pet insurance firm, Trupanion. I continued to operate my
pet sitting business while working in the large pet friendly office. I also served on Trupanion's office pet behavior team, helping establish protocols for a harmonious, dog safe workplace.
I became certified in 2018 and established my private training practice Diamond Dogs in 2019.
I began working for Dog's Day Out the same year, starting off in the small, 15 dog capacity daycare. My focus there these days is teaching. My group classes are the Basics, Puppy Play, and Train, a Recall/Loose Leash Walking workshop (in both locations) and assist with Reactive Redo in Burien. I am the lead trainer for Puppy Training Camp, and Teens Playgroup.

Certifications:

Certified Professional Dog Trainer- Knowledge Assessed (CPDT-KA) Certified Family Dog Mediator (FDM) Certificate, Canine Studies (CCS)

Dog training services include

  • Reactive dog training
  • In home training
  • Puppy training

More info about Cynthia Howell's dog training:

Private training sessions- in home and virtual. Day training with established clients. Dog's Day Out: group classes- Puppy Play and Train, the Basics. Lead Trainer: Puppy Training Camp, Teens Playgroup

Behavioral issue focus:

Reactivity, fearfulness, basic training, puppy development

Dog training methods:

Everyone starts with a questionnaire followed by a virtual session, up to 90 minutes, where we go over the information provided and assess a plan forward. All training is positive reinforcement and part of what we assess is what is most reinforcing to your dog-- food, play, toys, access to specific things, etc. Every dog is an individual so this can vary, as can the training I would suggest-- private sessions (with or without guardian), group classes, or virtual sessions.

Why I became a dog trainer:

Dogs have always been a part of my life, and study of animal behavior was always my passion. Twenty years ago I decided to make both of those things my daily business. After doing many things that depended on the understanding of a dog's well being, prioritizing the money being made instead-- I decided to get firmly on the side of the dog.

My favorite part of being a dog trainer:

Seeing dogs think and learn! Showing people how to communicate effectively with them is very satisfying.

My #1 dog training tip:

Every dog is an individual; each dog in your life will learn differently.

Testimonials

See all testimonials

“Cynthia is an incredible trainer. She is super passionate and caring towards my dogs and works with us to create manageable skills that support the whole household. I really trust her and her deep knowledge of training.”

— Wayne Z.

“We first worked with Cynthia with in a group class with our poodle, Ellie, who was extremely shy. Cynthia was great with Ellie, being very careful to pair her with other dogs whose temperament would be accepting and allow Ellie some time and space to get to know them. At the end of the series of classes, Ellie was able to play with many of the other dogs without getting nervous of overwhelmed. A few months later, I asked Cynthia to help me with getting Ellie to remain calm on walks. I take her to work with me almost everyday, but walks along the busy street were stressful and sometimes frightening for her. Cynthia started from the very basics to build Ellie’s confidence; first in the roof garden of my building, then on to a relatively empty trail, to busier streets and even stopping at a cafe. Since then, I’ve continued to work with Ellie on the techniques I learned from Cynthia. We can now walk along the busy street outside of my studio and she is happy to take the lead, tail always up, and having a great time on our walk. She’s also more accepting of animals, able to either stop and greet them on a walk or able to ignore them and walk right past without an issue. Without Cynthia's help, I don’t think Ellie would be doing as well as she is today. I highly recommend working with Cynthia; she’s knowledgeable, intuitive, and you can tell she really loves the work she does. And the results have proven it!”

— Charles C.

“Cynthia is a rare gem and an integral part of our extended dog-family! We’ve relied on her for years for our type-A, high anxiety doodle, and we recently turned to her, once again, for help navigating the addition of a second dog. She has both an intrinsic understanding of dog behavioral needs and a commitment to continually expanding her expertise through study. We are the fortunate beneficiaries of her knowledge and skills; she continually amazes us with insights into the psyche of our animals and a seemingly endless toolkit to solve every scenario we encounter—from reactivity to puppy rearing. The result of working with her is a deepened connection with our dogs and simple, practical techniques (ask her to teach you the “1-2-3”!) that make daily life happier and calmer for us all.”

— Annie A.

“Diamond Dogs helped me reframe my understanding of what dogs need, particularly my dog. Cyn taught me how to listen/understand/observe my unique dog where now we do things that I know is bringing us both joy instead of what I thought we should be doing based on old ways of thinking/training. It has transformed our relationship and lives! We are still on our journey to get where we want to be but we have a solid roadmap. I’m very thankful Cyn saw what a wonderful creature Brandi is and how she could thrive more peacefully.”

— Amy M.

Support your dog trainer by writing a testimonial.


See The Best Dog Trainers In Seattle


See The Best Dog Trainers In Other Cities Near Seattle


See The Best Dog Trainers By Type In Seattle

Sniffspot Dog running on field

Get safe exercise for your dog by renting a private dog park near you

David Adams photo

David Adams

Aug 7, 2026

Dog Trainers

Most recent articles

Sniffspot Host Spotlights: Real Hosts, Real Backyards, Real Stories thumbnailSniffspot Host Spotlights: Real Hosts, Real Backyards, Real Stories
Sniffspot Host Spotlights: Real Hosts, Real Backyards, Real Stories thumbnail

Sniffspot Host Spotlights: Real Hosts, Real Backyards, Real Stories

The State of Reactive Dogs 2026 thumbnailThe State of Reactive Dogs 2026
The State of Reactive Dogs 2026 thumbnail

The State of Reactive Dogs 2026

What Does Off-Leash Time Do for Dogs? 500+ Owners Weigh In thumbnailWhat Does Off-Leash Time Do for Dogs? 500+ Owners Weigh In
What Does Off-Leash Time Do for Dogs? 500+ Owners Weigh In thumbnail

What Does Off-Leash Time Do for Dogs? 500+ Owners Weigh In

Is Walking Enough Exercise for Your Dog? Why Off-Leash Time Matters thumbnailIs Walking Enough Exercise for Your Dog? Why Off-Leash Time Matters
Is Walking Enough Exercise for Your Dog? Why Off-Leash Time Matters thumbnail

Is Walking Enough Exercise for Your Dog? Why Off-Leash Time Matters

Off-Leash Time Isn't Just for Dogs: How It Helps Your Mental Health Too thumbnailOff-Leash Time Isn't Just for Dogs: How It Helps Your Mental Health Too
Off-Leash Time Isn't Just for Dogs: How It Helps Your Mental Health Too thumbnail

Off-Leash Time Isn't Just for Dogs: How It Helps Your Mental Health Too

The Ultimate Bikejoring Guide for You and Your Dog thumbnailThe Ultimate Bikejoring Guide for You and Your Dog
The Ultimate Bikejoring Guide for You and Your Dog thumbnail

The Ultimate Bikejoring Guide for You and Your Dog

Top dog guides per area

Dog training guides

Dog enrichment guides

Dog reactivity guides

Sniffspot community guides

Top dog trainers in the US

City dog park guides

Dog breeds

Top dog names in the US

  • Top 1,000 Most Popular Dog Names thumbnail

    Top 1,000 Most Popular Dog Names

    Looking for the perfect dog name for your new pup? We have created filterable lists of dog names from our database of hundreds of thousands of Sniffspot users.
  • Most Popular Male Dog Names thumbnail

    Most Popular Male Dog Names

    Looking for the perfect dog name for your new male pup? We have created filterable lists of male dog names from our database of hundreds of thousands of...
  • Most Popular Female Dog Names thumbnail

    Most Popular Female Dog Names

    Looking for the perfect dog name for your new female pup? We have created filterable lists of female dog names from our database of hundreds of thousands of...
  • Most Popular Golden Retriever Names thumbnail

    Most Popular Golden Retriever Names

    Welcome to our comprehensive list of Golden Retriever dog names, curated from our vast database of Sniffspot users.
  • Most Popular Labrador Retriever Names thumbnail

    Most Popular Labrador Retriever Names

    Welcome to our Labrador Retriever dog names page! Here you can browse through filterable lists of names for your beloved furry friend, ranging from cute and...

Top dog rescues in the US