The Riverstone team is led by husband & wife duo, Kim & Caroline Perlman. Kim & Caroline are dedicated to any rider looking to achieve their riding and competition goals, regardless of the level of aspirations. The entire team is committed to proving the ideal space for both the top quality horse as well as the rider who wants to show with a great team in a friendly environment. Scroll through to learn more about Kim & Caroline and the rest of the integral members that help to manage both Riverstone North & South.
the team
a little bit about
Caroline perlman
Caroline has had an ingrained passion for horses from the time she could walk. As a junior, Caroline earned her horse time as a groom and exercise rider, progressing through the years to eventually work for Canadian Team rider, Torchy Miller. Her Wall Street career afforded her the ability to purchase her own horses and she competed successfully for over 20 years in the top ranks as an Amateur in both the jumpers and the hunters. She has been privileged to work with many industry professionals and counts Harold Chopping and Brandie Holloway as her principal mentors who continue to guide her since turning professional.
Owner & Trainer
Owner & Trainer
Caroline Perlman
Kim grew up riding horses and achieved top five finishes in the Medal, Maclay and USET finals under the training of Hunterdon where he met his long-term mentor, 5-time Olympian Anne Kursinski. Kim then turned professional, developed young hunters for private owners and competed in the jumpers through Grand Prix level. Kim established Riverstone in 1993 and has spent decades developing a training program that focuses on the careful management of horse, rider safety and education and true horsemanship, the combination of which has resulted in consistent success in the show ring.
Kim Perlman
See More
See More
Alberto Sanchez
Born in the mountains of Honduras, Alberto grew up in a family of farmers who raised cattle, and his connection with animals began at an early age. He was riding horses as a child and developed a natural intuition for working with them — something that continues to define his approach today.
Head Groom
Assistant trainer
Rebecca Zimble
Rebecca Zimble is a lifelong horsewoman with experience as a rider, trainer, and barn manager. After a successful junior career, she gained valuable experience working with top professionals and managing both sales and training programs. She later founded Zimble Show Stables, where she has developed riders and horses to succeed at local and national levels across hunters, jumpers, and equitation. Becca joined our team in 2025 and has proven to already be a crucial member of our business.
See More
See More
In addition to training clients, Kim has also been a show manager and run some of the largest horse shows in the Northeast including the North Fork Classic; Ox Ridge Charity Show; and Princeton Show Jumping. As a respected professional in the business, Kim is in demand as a clinician, speaker and coach for many of today’s top Grand Prix riders.
Together with his wife Caroline, Kim has designed and built two facilities to support the boarding, full care and training of client and investment horses. Riverstone North and South each provide ample turnout and an idyllic private training setting. Kim can often be found in the round pen working with young horses when not at horse shows or hosting clinics.
A daughter of a British army officer, Caroline was born in Westphalia, Germany, returned to England and then emigrated to Ontario, Canada where she graduated from the University of Western Ontario, Richard Ivey School of Business in 1993. Recruited immediately by Credit Suisse First Boston, Caroline moved to Manhattan where she pursued a career as an investment banker for ten years.
Caroline left Wall Street in 2002 to partner with Kim Perlman and build Riverstone together. She focused on breeding, importing and developing young horses, continuing as an amateur until she turned professional in 2014. As a trainer, Caroline brings her unique perspective to Riverstone’s clients as she personally understands the inner workings of the amateur rider and their needs and expectations as a client. Caroline enjoys developing young horses, matching horse / rider combinations and sharing her knowledge with clients.
After a successful junior career in all three rings, Rebecca moved to VT to study Recreation Management with a concentration in the Ski Industry and a minor in marketing at Lyndon State College. While in school, Rebecca ran a successful rehab and sales facility in Jay VT. During her summer months, Rebecca spent her time in New York working for Jimmy Toon as JT Farms Manager and assistant trainer/ rider.
After graduating, Rebecca took a small program in MA and expanded it to new horizons leading to the opening of Zimble Show Stables. Rebecca ran a successful business taking her clients from local riders to national riders with ribbons and achievements at such shows like NEEC Finals, USHJA 3’3 Finals, NHS Finals, Junior Hunter Finals, Maclay Regionals, Lake Placid, WEC, HITS, Fieldstone and more! Rebecca has a long resume competing professionally from young hunters, hunter derby’s, and through the Grand Prix levels.
Alberto came to the United States to pursue a career in the equestrian industry and has built a reputation for his exceptional work ethic, deep care for the horses, and quiet confidence in the barn. He spent four years with Redfield Farm, where he refined his skills in grooming, show prep, and horse management at the top levels of the sport.
Now entering his seventh year with our team, Alberto is an integral part of our program. His attention to detail, calm presence, and commitment to each horse’s well-being make him a trusted and valued professional both at home and at the show.