I'm Greg W., the breeder behind Vanguard Giants located in Tombstone, AZ. Lifelong dog lover breeding majestic Giant Schnauzers since 2010. Our puppies are raised right in our home alongside our kids, utilizing Puppy Culture and ENS for the best start in life. Dedicated to raising healthy, well-socialized, and confident companions for your family.

Why did you start breeding?
What makes your program special?
Where do your breeding dogs live?

Greg has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready, reach out to ask about the puppies or anything else on your mind. You’ll get to know each other through messaging, phone, or video and pay securely, all on Good Dog.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

Greg may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Greg offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Greg directly.
When you pay and communicate on Good Dog, you’re covered by Payment Protection.
You can drive or fly to pick up your puppy from Greg.
Meet in Tombstone, AZ
Meet at El Paso Airport
Meet in Tucson, AZ
Greg has been a member of Good Dog for less than a month
Greg was screened for responsible practices and has been a member since 2026.
Greg’s links

Vanguard Giants meets or exceeds our community standards in these areas:

Giant Schnauzer
About Cerberus
Cerberus is a male Giant Schnauzer. Carefully selected as a great representative of his breed, Greg decided to make him part of their program. Greg has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great health testing

Giant Schnauzer
About Rhea
Rhea is a female Giant Schnauzer. Carefully selected as a great representative of her breed, Greg decided to make her part of their program. Greg has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great health testing
Great level
Vanguard Giants reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Giant Schnauzers.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Vet Wellness Exam
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
DNA Disease Panel
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.