| A & W Ranch | Boarding Stable, Horseback Riding | Iowa, Grinnell |
| A&A – The Barn, LLC | Boarding Stable | Iowa, Story City |
| Adix Quarter Horses | Coaches & Trainers, Riding Lesson, Horseback Riding, Boarding Stable | Iowa, Ogden |
| Adkins Quarter Horses LLC | Breeder, Horseback Riding, Boarding Stable | Iowa, Boone |
| AMF Équitation, LLC | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Ridgeway |
| Ashley Mason | Boarding Stable, Coaches & Trainers, Equestrian Club, Riding Lesson | Atlantic, Iowa |
| Bear Creek Horse Farms | Boarding Stable, Breeder | Iowa, Montezuma |
| Belinda’s Best Little Horse House | Boarding Stable | Iowa, Des Moines |
| Blue Meadows Farm | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Mitchellville |
| Boulder Creek Equestrian Center | Boarding Stable, Coaches & Trainers, Riding Lesson | Cedar Rapids, Iowa |
| Brushy Creek Stables | Boarding Stable | Iowa, Des Moines |
| Buck Creek Ranch | Boarding Stable | Iowa, Linn Grove |
| Camelot Equestrian Centre | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Mason City |
| Carr Quarter Horses | Boarding Stable, Breeder | Iowa, Rock Rapids |
| Chesapeake Central Equestrian | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Solon |
| Clear Creek Stable | Boarding Stable | Ames, Iowa |
| Cody Keller Horsemanship | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Seymour |
| Craig Johnson Reining | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Waverly |
| Danielle Burns Performance Horses | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Winterset |
| Demmer Horses | Boarding Stable, Coaches & Trainers, Horseback Riding, Riding Lesson | Cascade, Iowa |
| Derek Heitland Performance Horses | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Parkersburg |
| Diaman H Stables | Boarding Stable, Breeder, Coaches & Trainers, Riding Lesson | Iowa, Des Moines |
| Double A Equine LLC | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Davenport |
| Dreamcatcher Stable – Sperry, IA | Boarding Stable, Coaches & Trainers, Riding Lesson, Trail Rides, Horseback Riding | Iowa, Sperry |
| Dusty Hills Riding Academy and Stables | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Monticello |
| Gambit Performance Horses | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Davenport |
| Hagens Crazy 8 Acres | Boarding Stable, Guest Ranch, Horseback Riding | Iowa, Stockton |
| Hansen Performance Horses | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Forest City |
| Harmony Icelandics | Coaches & Trainers, Riding Lesson, Trail Rides, Horseback Riding, Boarding Stable, Breeder | Iowa, Des Moines |
| Heather Wilson-Roller Dressage | Boarding Stable, Coaches & Trainers, Riding Lesson | Cedar Rapids, Iowa |
| Heeley Pleasure Horses | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Newton |
| Hobby Horse Stables | Boarding Stable | Iowa, Cedar Rapids |
| Holley’s Boarding Stables | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Cedar Rapids |
| Horse Creek Adventures | Boarding Stable, Trail Rides, Guest Ranch, Horseback Riding, Horse Camps | Iowa, Shenandoah |
| Horse Hideout | Boarding Stable | Iowa, Burlington |
| Horse Outpost | Boarding Stable, Guest Ranch, Horseback Riding | Iowa, Logan |
| Howe’s Handy Horses | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Dubuque |
| Hunters Glen Farms | Boarding Stable | Iowa, Des Moines |
| Inspiration Stables | Boarding Stable, Coaches & Trainers, Equine Assisted Learning, Equine Assisted Therapy, Horseback Riding, Riding Lesson | Iowa, Maquoketa |
| Jester Park Equestrian Center | Boarding Stable, Coaches & Trainers, Riding Lesson | Granger, Iowa |
| JM4 Ranch | Boarding Stable, Tack Shop | Iowa, Crescent |
| Jones Performance Horses – Allerton, IA | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Corydon |
| JR Ranch | Boarding Stable, Coaches & Trainers | Ottumwa, Iowa |
| Keith Equestrian Center | Coaches & Trainers, Riding Lesson, Horseback Riding, Horse Camps, Boarding Stable | Iowa, Ottumwa |
| Koehn Performance Horses | Equine Assisted Therapy, Equine Assisted Learning, Boarding Stable, Breeder | Iowa, Elkader |
| Kyle Muckler Training | Coaches & Trainers, Riding Lesson, Boarding Stable | Iowa, Cumming |
| Kyle Ridge Ranch | Boarding Stable | Winterset, Iowa |
| Loess Hills Equestrian | Horse Camps, Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Onawa |
| Louw Stables, LLC | Riding Lesson, Boarding Stable, Coaches & Trainers | Des Moines, Iowa |
| Maffitt Lake Farms | Boarding Stable, Coaches & Trainers, Riding Lesson, Horse Show | Cumming, Iowa |
| Marinovich Eventing | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Cumming |
| Matthias Arabians | Boarding Stable, Coaches & Trainers, Riding Lesson | Des Moines, Iowa |
| McAtee Saddlebreds | Boarding Stable, Breeder | Iowa, Cedar Rapids |
| Mike Davis Reiners | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Davenport |
| MK Equestrian | Boarding Stable, Guest Ranch, Horseback Riding | Iowa, Cedar Falls |
| New Beginnings Horses | Boarding Stable, Horseback Riding | Iowa, Davenport |
| Oak Meadow Farm | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Solon |
| Our Castle Horses Farm | Boarding Stable | Iowa, Decorah |
| Peace of Heaven Horses | Boarding Stable | Iowa, Waterloo |
| Pine Hollow Stables | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Altoona |
| Pinoak Acres | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Atlantic |
| Pointview Arabians | Boarding Stable, Breeder | Iowa, Bloomfield |
| Prairie Rose Arena | Boarding Stable, Horseback Riding | Des Moines, Iowa |
| Preston DeLaRosa | Boarding Stable, Riding Lesson | Iowa, Runnells |
| Rafter J Ranch – Shell Rock, IA | Boarding Stable | Iowa, Waverly |
| Red Roof Stable and Farm | Guest Ranch, Boarding Stable | Iowa, Davenport |
| Reedannland | Boarding Stable, Breeder, Coaches & Trainers | Iowa, Cumming |
| Riso Quarter Horses | Boarding Stable | Iowa, Glenwood |
| Rolling Hills Stables | Boarding Stable, Trail Rides, Horseback Riding | Iowa, Des Moines |
| Roth Show Horses | Horse Show, Boarding Stable, Breeder, Coaches & Trainers | Iowa, Mount Pleasant |
| Saben Quarter Horses Breeding-Training | Boarding Stable, Breeder, Coaches & Trainers | Danville, Iowa |
| Sanderman Horsemanship | Coaches & Trainers, Riding Lesson, Boarding Stable | Iowa, Waverly |
| Sara Etter | Boarding Stable | Iowa, United States, Bondurant |
| Saving Grace Stables | Boarding Stable, Riding Lesson, Horseback Riding | Sioux City, Iowa |
| Shady Oak Horse Boarding | Coaches & Trainers, Boarding Stable | Hudson, Iowa |
| Show Horses By Shannon | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Des Moines |
| Singing Mesa Ranch | Boarding Stable, Horseback Riding, Guest Ranch, Trail Rides | Chariton, Iowa |
| SLB Equestrian | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Des Moines |
| South Timber Creek Ranch | Boarding Stable | Iowa, Marshalltown |
| Stark’s Performance Horses | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Panora |
| Stillwater Stables | Boarding Stable, Riding Lesson | Bondurant, Iowa |
| SunRise Stables | Boarding Stable | Iowa, Indianola |
| Tempo Farm | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Dallas Center |
| The Circle C Ranch | Boarding Stable, Breeder, Coaches & Trainers, Horse Show | Iowa, Council Bluffs |
| The Horse Lady | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Eldridge |
| The Paddock | Boarding Stable | Iowa, Winterset |
| Tietjen Performance Horses | Coaches & Trainers, Riding Lesson, Boarding Stable | Iowa, Dubuque |
| Triple E Horse Training | Boarding Stable, Coaches & Trainers | Iowa, Marengo |
| Triple M Stable, LLC | Coaches & Trainers, Riding Lesson, Tack Shop, Guest Ranch, Horseback Riding, Boarding Stable | Iowa, Council Bluffs |
| Twisted Fate Performance Horses | Boarding Stable, Coaches & Trainers | Iowa, Charles City |
| Unbridled Spirits Thoroughbred Retirement Ranch | Boarding Stable, Rescue Organization | Iowa, Lisbon |
| Upmier Riding Stables | Boarding Stable, Coaches & Trainers, Riding Lesson | Solon, Iowa |
| V2 Reining Horses | Boarding Stable, Coaches & Trainers | Iowa, Davenport |
| VERITAS Equestrian Center | Boarding Stable, Horseback Riding, Trail Rides | Grimes, Iowa |
| Veritas Stables | Riding Lesson, Horseback Riding, Boarding Stable, Coaches & Trainers | Davenport, Iowa |
| West Branch Horse Farm | Boarding Stable, Coaches & Trainers | Iowa, West Branch |
| Whiskey River Farms | Boarding Stable, Coaches & Trainers, Riding Lesson | Perry, Iowa |
| Windrush Hill Farm | Boarding Stable | Iowa, Mount Pleasant |
| Winds Reach Farm | Boarding Stable, Coaches & Trainers, Riding Lesson, Horseback Riding | Iowa, Iowa City |
| Wolf Ridge Farm | Boarding Stable, Coaches & Trainers, Riding Lesson | Iowa, Kalona |
