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Meet Our Reliable, Caring & Professional Team!

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Gabrielle Walker-
Founder - Pack Leader - Pet Sitter 

Gabrielle Walker (real last name) founder of Fit Dog Theory, is a professional dog walker, certified in canine behavior, pack management, safety and fight protocols, as well as pet CPR and first aid. Gabrielle is a team player who is dedicated to providing her clients the services and tools they need to provide an abundant life for her client's pets. She is patient and respectful with each animal in her care and treats them as if they were her own.

"I am a Bay Area native and enjoy hiking, running, swimming, gardening, and spending time with my toddler. I am so grateful to have had the opportunity to work with so many amazing dogs in the past seven years! It has been highly rewarding helping dogs build thier confidence. 

Professional Certifications

  • Graduate of Pawsitive Tails- Dog Walking Academy.

  • Insured and bonded with Pet Sitters Associates.

  • First Aid and CPR certified by Pet Tech.

  • Fit Dog Theory is licensed with the city of Walnut Creek.

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Dog Walker - Pack Leader 

Kristi is a bay area native. She has 16 years of experience working in local veterinary hospitals and decided to take her passion working with animals to an outdoor environment by joining our team. Kristi is a fast learner, organized, and is quick to notice everything about the dogs in our care. Kristi meets and exceeds a high level of professionalism and integrity that is required for a dog walking position with Fit Dog Theory. 

“Hi! I'm Kristi! I am a devoted animal lover who has always been passionate about the animal world. I have 16 years under my belt as a Certified Veterinary Technician from a local privately owned hospital. I started at the beginning as a Kennel Tech, and worked my way to Lead Technician/Supervisor. This has given me the opportunity to acquire skills throughout the years that I continue to use now. I have performed nail trims, done anal gland expressions, given oral and injectable medications and have helped sick and injured animals get well. I have also helped place pets that were surrendered, get to their new forever homes. I have 2 dogs and 5 cats of my own. I love being outdoors, hiking, camping and spending time with my family including my sweet granddaughter. I truly believe the love from your pets is one of the purest forms of love you will ever experience! I hope to experience that love with YOUR pets!

– Kristi 

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Dog Walker - Pack Leader 

 “My name is Sugi and I recently moved from Hawaii to the Bay Area just short of a year from now. I grew up in Hawaii, exposed to nature and loved the ocean and enjoyed surfing and hiking to beautiful waterfalls. I’ve always had a huge heart for animals, but specifically dogs. I shared a dog with my best friend/ roommate Onyx, which I had to leave behind at home. I’ve worked many years in customer service and hospitality and I am currently a flight attendant for United Airlines. My work experience enhanced my patience, communication skills and ability to be able to work in many different scenarios with different people and personalities. I am excited for my future dog walks with Fit Dog Theory and getting to personally bond with everyone’s sweet pups!”


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