Jeff Fullmer

Dogs Colorado Founder

Puptender | Walker, Hiker, and Runner of Dogs

By Millennial standards I worked for the Federal government for a small eternity. Inspirations waxed and waned over the years but it was my colleagues and their dedication to a mission larger than themselves, to a greater good, that stuck with me the most. Their dedication showed me that I could never feel satisfied unless I found my own idea of a greater good.

I was extraordinarily lucky to travel in my youth. Later, in search of the aforementioned good, I was able to travel some more. I found an awful lot out there, and along the way, I heard a few things I had heard before... and I heard them a bit louder this time.

  • I love dogs, no two ways around it. They always bring out the best in me
  • I love to run, play, push hard, and to be outside… even more so with my dogs
  • I belong out on the trail with a companion… I know a dog’s heart feels the same

I started Dogs Colorado because when I wander outside my mind becomes calm. It is as if sunlight and the promise of the unknown work together to clear away old worries, sharpen my instincts, and fuel new ideas. I like to think that I see an analogous effect in my dogs. That we somehow share this bit of clarity in our adventures. Certainly, I rarely see them happier. It is as if they spend their days at home loyal to my life story, but when we go outside, they get to be a part of their own.

Dogs Colorado is my own way to participate in the lives of as many fantastic dogs as possible, and the best way I have found to participate in my own.  

When I’m not expanding my knowledge about dogs or the great outdoors… I home-roast coffee, homebrew beer, travel, train to ride the Great Divide, play guitar, find new recipes, and work on my book.

“Never underestimate how much assistance, how much satisfaction, how much comfort, how much soul and transcendence there might be in a well-made taco and a cold bottle of beer...” ...while sitting on the porch next to a sleeping dog .

(mostly from Jitterbug Perfume by Tom Robbins)



Dogs Colorado Editor

Puptender | Walker, Hiker and Runner of Dogs


I count my very first job as when I began my own pet care business when I was twelve. My clients were only a handful of neighbors on my street, and it mostly involved cleaning up dog yards and watering plants while the owners were gone, but nevertheless, I was thrilled to be involved in animal work. My small business ended when I moved to Utah to pursue my passion in short track speedskating, but I still found myself drawn to animals. Friends would often request me to look after their little ones, from ball pythons to beta fish, and I had a brief stint as a volunteer docent at the zoo. While completing my bachelor’s in comparative literature at UC Santa Barbara, I found a local pet sitting business to work for part-time and stayed with the company for nearly three years. Again, my work there ended when I moved away, this time back to Colorado where I can pursue a career in editing, skate, and experience her beautiful natural resources. It is a joy to return to the state I grew up in; to be able to give myself to something I have always loved, and in a way that contributes to my active lifestyle.

My experience in dog care for friends and professionally has exposed me to a wide variety of personalities, ages, abilities and needs of dogs. I understand if your pup requires a little extra patience, a redressed bandage, or a good run to expend his pent-up energy. I’m happy to ensure your dog’s comfort and to give him the loving care he needs in order to thrive.



Puptender | Walker, Hiker, and Runner of Dogs


To be honest, my first encounter with our four-legged friends left me terrified in tears. I was 5. Now, a couple feet taller, and a few years older, both lil’ and large puppers alike make my heart melt. These precious souls constantly leave me in awe. With their slobbery smooches, overwhelming sensitivity to people’s emotions, and their general excitability and sense of adventure, I can’t help but appreciate and adore every individual dog.

What might be most exciting about this next chapter in my life is Dogs Colorado’s philosophy. Psychology has not only taught me that negative reinforcement, or punishment, is simply not as effective, but that the average dog’s brain is as developed as a two-year-old human! I constantly have this in the back of my brain, enforcing the need to treat these beautiful creatures with nothing but love and compassion. I am honored and excited to be apart of a service that recognizes the power of using only positive reinforcement.

Beyond that, I have been taking a break for the past two years from my B.A. in Psychology, but am excited to start classes again this coming Fall! During my time away from school, I have been focusing on things in life that truly inspire me, and bring not only joy, but clarity, to my path, thus bringing out the eager hiker, novice yogi, avid concert-goer, and general outside sun-seeker in me.

A nurturer at heart, I am delighted to help in your own furry companion’s path to fulfillment.



Puptender | Walker, Hiker, and Runner of Dogs


I’ve been fascinated by animals my entire life and have always sought to understand them as fully as possible. Through that understanding, I find strong connections to the human condition and all other life in general. Providing joy and contentment for others gives meaning to my life in what can be an otherwise confusing world.

My formal education is in biology and ecosystem ecology, with some tangents into drafting, photography, and digital design. I’ve been involved in animal welfare in some way or another for nearly a decade now. Most of that time has been spent working and volunteering in shelters, helping to build more understanding between humans and animals. Through shelter work, I enjoy helping people connect to the animal that best suits them, and I get to help to clear up misunderstandings that can lead to separations. When walking dogs I like to use the things I’ve learned to help make sure that the dogs I’m with have a fulfilling experience. I’ve recently completed a certification in Animal Behavioral Science and Technology and, when not walking dogs, I do training and behavior work at a local Humane Society.

I spend my free time with my wife, my dog Arcturus (we call him Barker), and the cats. I also hike, compose and record music for my band, play other people’s music in their bands, and make art.



Puptender | Walker, Hiker, and Runner of Dogs


My whole life I have been surround by animals. I was lucky enough to grow up with parents who were animal lovers which allowed me to take care of many different pets. In college, a lack of fur babies made me all the more homesick. When I moved into an apartment I got two kitties and life was back to normal. That’s when it fully set in that I would have animals for the rest of my life.

I have over 8 ½ years taking care of animals and I am also the go-to dog sitter in my circle (which I secretly love because I’ve always wanted to have two dogs). Even in my travels, I always make a point to find a few new animal buddies. I feel a strong passion to not only show all animals love and affection but to be there for them, with a helping hand, whenever I can. Mixing my love for animals with my love for the outdoors, I couldn’t have found a better fit for me than to be a Puptender! I look forward to hiking and playing with your fur babies!

Currently, I have three kitties; Cypress Hill, Shanti, Shiva, and a dog named Dora.