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Steve Schwartzenberger

Steve Schwartzenberger


4 years with Arenus



As a lifetime horseman, Steve Schwartzenberger always knew a career in the equine industry was where his life was headed. While working as a horse trainer through veterinary school at Colorado State University, he realized his true calling was riding and training reining horses. After graduation, he and his wife, Dori, established Schwartzenberger Equine where they’ve developed a top level program.

Steve has over $471,000 in NRHA lifetime earnings, multiple championship titles and has been named a NRHA Top 20 Rider. His love of reining has extended to his daughters, Sharee and Shevin, who also train and compete regularly. Additionally, he is still a practicing veterinarian, focusing mainly on reproduction and rehabilitation services and operating out of the Schwartzenberger Equine facility in Longmont, CO.


  • Assure Guard
  • Steadfast Canine
  • Steadfast Equine Growth
  • Sore No-More Performance Ultra Liniment
  • Assure Guard Gold
  • Assure Plus
  • Steadfast Equine


  • NRHA Limited Open Futurity Champion
  • Multiple NRHA Open Futurity and Derby Finalist
  • Over $471K in NRHA Lifetime Earnings
  • Farnam AQHA Congress Open Reining Futurity Champion
  • 2007 – NRHA Top 20 Professional Rider


"One of our horses has battled chronic ulcers his whole life and we spent a small fortune in treatment. Starting him on Assure Guard has made a huge difference in maintaining and preventing his ulcers. We used to have to treat him with UlcerGard both at home and on the road but, now that he’s on Assure Guard, he doesn’t need it!"