- Middlefield Farm
- Midnite Dawn Morgans & Stables
- Midway Peruvian Paso's
- Mighty Oaks Carriage Co Inc
- Milestone Equine Ctr
- Mill Pond Farm
- Mill Ridge Farm
- Mill Ridge Farm
- Millennium Farms
- Millennium Farms
- Millennium Farms Kentucky
- Millennium Farms Kentucky
- Millford Farm
- Mills Quarter Horses
- Mills Quarter Horses
- Millstream Farm
- Mineola Farm
- Mineola Farm
- Miracle Acres Paints & Qrtrs
- Missouri Quarterhorse Assoc
- Mistik Meadows Arabians
- Misty Meadow Miniatures
- Misty-Rose Farm
- Mitchell Creek Ranch
- Mohawk Morgan Farm
- Mohawk Morgan Farm
- Moncrief Quarter Horses
- Mont Heritage Farms
- Montana Chrome Appaloosas
- Montana Mangalarga Marchadors
- Montebello Morgan Horse Farm
- Montfort Arabians
- Moody Creek Farms
- Moon Dance Meadow's Morgan
- Moon Lake Equine Ctr
- Moon River Arabians
- Moonlight Meadow Quarter Horse
- Morgan Farms Arabians
- Morgan Horse Farm
- Morgan Manor
- Morgan Richhill Horse Farm
- Morgan Richhill Horse Farm
- Morgan Ridge Farms
- Morgan Treble's Manor
- Mount Brilliant Farm
- Mount Brilliant Farm
- Mount Brilliant Farm
- Mountain Top Ranch Equine Ctr
- Mountainview Manor Farm
- Moving Cloud Farm
- MRR Tennessee Walking Horses
- Muirfield East
- Murphy's Stables
- Murray's Tack Shop
- Myers & Myers
- NA/Wpn
- NAERIC
- Narvick International Inc
- National Chincoteague Pony
- National Spotted Saddle Horse
- Neel Paint Horses
- Netherbloom Farm LLC
- Netherwood Acres
- New Hope Ranch Morgan Horses
- New York Thoroughbred Breeders
- New York Thoroughbred Breeders
- Newchance Farm
- Newcourse Jumps
- Newgate Stud Farm
- Newgate Stud Farm
- Newgate Stud Farm
- NFC Race Horse Farm
- Niegel Enterprises
- Niegel Enterprises
- Nix Appaloosa
- Noble Horse Farm
- Nordic Thoroughbred
- Norfields Farm
- Norfields Farm
- Norfields Farm
- Normandy Farms
- Normandy Farms
- Normandy Farms
- North American Selle Francais
- North American Selle Francais
- North Star Farms
- North Wind Farm
- Northern Lights Ranch
- Northern Plains Performance
- Northern Stallion Station
- Northview Stallion Station
- Northwest Mare Svc
- Northwind Arabians Stables
- Nuckols Farms
- Nursery Place
- Nursery Place
- Nursery Place
- O'Grady Ranch
- Oak Crest Arabians
- Oak Glen Farm
- Oak Haven Arabian Horse Farms
- Oak Wind Farm
- Oak Wind Farm
- Oak Wind Farm
- Oakgrove Clydesdales
- Oakgrove Clydesdales
- Oakleigh Farm
- Oakleigh Farm
- Oakleigh Farm
- Oaks Indian Hill Ranch
- Oasis Miniature Collection
- Oasis Quarter Horses Inc
- Ocala Stud
- Ocala Stud
- Ohio Stallion Sta
- Oklahoma Palamino Exhibitors
- Old Corner Intl
- Old Dogwood Hill Farm Inc
- Old Frankfort Stud
- Old Frankfort Stud
- Old Frankfort Stud
- Old Moses Farm Inc
- Oldfield Farms Inc
- Oleo Acres North
- Olympic Equestrian Ranch
- Om El Arab
- Open Road Morgans
- Open Road Morgans
- Oppenheimer Stables
- Orchard Trailer Sales
- Origer Paint & Cattle Ranch
- Orrion Arabians
- Osborne Farms Inc
- Osborne Quarter Horses
- Our Pleasure Quarter Horses
- Outlaw Equestrians
- Overbrook Farm
- Overbrook Farm
- Overbrook Farm
- Owings Ranch & Stud Farm
- Owings Ranch & Stud Farm
- Owl Hollow Farm
- Ox Bow Ranch
- Oxley Properties
- P J Freeman Farms Inc
- P J's Quarter Horses
- Pacific Airlift
- Padua Stables
- Page's Quarter Horses
- PAH Quarter Horses
- Painted 7 Ranch
- Painted Desert Farm
- Painted Gift Ranch
- Painted Hills Ranch
- Painted Oaks Farm
- Painted Waters Ranch
- Pajarito Arabians Nambe
- Pal Gals Inc
- PAR Three Ranch
- Parabian Farms
- Paradise Paint Horses
- Paragon Arabians
- Park Cattle Co
- Park Ridge Arabians
- Parker View Farm Stable
- Parkhouse Don & Mary
- Parkway Farm
- Parnell Ranch
- Parrish & Parrish Quarter Hrse
- Parrish Hill Farm
- Paso Finos Of Zigzag
- Patch Work Paint
- Patch Work Paint
- Patcha Paint Quarter Horses
- Patchen Wilkes Farm
- Patchen Wilkes Farm
- Patchen Wilkes Farm
- Pattijohn Quarter Horse
- Paulson Brothers Thoroughbred
- PAY-Jay Arabians Office
- Payson Stud Inc
- Payson Stud Inc
- Payson Stud Inc
- Payton Quarter Horses
- Peaceful Valley Farms
- Pebble Creek Farm
- Pedley Equestrian Ctr
- Peeples Ranch
- Pegasus Ranch
- Pendragon Sport Horses
- Peninsula Farm
- Pennacle Farms
- Pepper Hill Farm
- Percheron Horse Assn
- Peregine Fine Arabian
- Peregine Fine Arabian
- Peregine Fine Arabian
- Perfect Time
- Perfecta Racing
- Performance Breeders
- Perretti Farm Inc
- Perrys Paints
- Peruvian Paso Horses
- Peruvian Paso Promotions
- Peso Doble Farms
- Peter J Cofrancesco Farms
- Peter Pan Stables
- Peterson & Smith Equine Reprdc
- Peterson Quarter Horses
- Phelan Training Stable
- Phil Farrell Co
- Phoenix West Stable Prod
- Pickens Performance Horses
- Pilot Knob Quarter Horses
- Pin Oak Farm Shop
- Pin Oak Stud Farms Inc
- Pine Grove Arabians
- Pine Knoll Farm Inc
- Pine Knoll Farm Inc
- Pine Knoll Farm Inc
- Pine Trace Quarter Horses
- Pinebourne Farm North
- Pinecrest Stables Inc
- Pineview Arabians
- Pingree Hills Quarters & Paint
- Pinon Acres Appaloosas
- Pinon Acres Appaloosas
- Pintabian Horse Registry Inc
- Pipe Dreams Farm
- Pitz Quarter Horses
- Playmares Magazine
- Pleasant View Stables
- Plemmonston Stud
- Plemmonston Stud
- Plemmonston Stud
- Pocomoke Meadows
- Polo Ridge Farms
- Poney Creek Ranch
- Ponytail Ranch & M Bar N Stbls
- Poole Training Ctr
- Port Farms Inc
- Post Oak Quarter Horse Farm
- Potiquimi Connemaras
- Powder River Horses
- Prancing Quarterhorse Farm
- Preferred Stock Farm
- Preiss Paso Fino Horse Farm
- Premier Quaterhorses LLC
- Premium Star Inc
- Priefert Of Temecula
- Prince Royal Knight Staples
- Priority Service Shavings
- Prism Paints & Quarter Horses
- Promised Land Peruvians
- Proud Meadows
- Providence Farms
- Pruin's Belgians LTD
- Puett Paint & Quarter Horses
- Pura Vida Ranch
- Purdy Stable Connection
- Pure Puerto Rican Paso Fino
- Pyaar Acres
- Pyaar Acres
- Pyaar Acres
- Pyramid Society
- Pyramid Society
- Pyramid Society
- Quail Hill Ranch
- Quail Run Ranch
- Quandahl Farm's Paint Horses
- Quarter B Farm
- Quarter-Horses Jones
- Queen Bee Ranch Inc
- Quiet Creek Ranch
- R & B Quarter Horses Inc
- R H Kiechefer Quarter Horse
- R J Ranch Inc
- R Rockin Ranch
- R-11 Quarter Horse Ranch
- R-PAR Arabians
- Rafter 19 Horse & Pony Farm
- Rafter S Stable Supplies
- Rainbow Arabians
- Rainbow Equestrian Ctr
- Rainbow Farm Unlimited
- Rainer Quarter Horses
- Rainwater Farms
- Raisin Cain-Registered Horses
- Raisin Tree Farms
- Ralston Training Stables
- Ramsey Farm Inc
- Rancho De Rayo Inc
- Rancho Delta Paraiso
- Rancho El Dorado
- Rancho El Mistico
- Rancho Jamul Inc
- Rancho LA Rosa
- Rancho Los Ecuestres
- Rancho Pena
- Rancho Polo
