Our Team

The Team

  Arliss & Cassie met in summer of  2002 , in 2006 they purchased 320 acres near Qu'Appelle, Saskatchewan. From 2006 to 2019 they operated Ace Equestrian a boarding, training  lesson barn and show facility. The facility was complete with a beautiful indoor,  multiple outdoors and a cross country course.

  In 2015 they hosted a Claudia Cojocar clinic that would forever change their lives. After a few years of discussing it and seeing how the industry was moving in Saskatchewan and wanting to be closer to their mentor they decided to list Ace to start a new adventure in Langley, BC.  Thorbrooke Equestrian was born, Thorbooke represents their family names Thorsteinson and Bolingbroke.

  Horses are their passion, that can be seen on a daily basis as they work together in the barn, and with each horse or student they train. They also have two Children Austyn and Vance, that are also very involved in the day to day activities.

  Having worked with all breeds and in many disciplines, they now focus on hunter/jumper as their main discipline. Including dressage as a base for all their horses.  Starting young horses with a solid foundation is very important to them, they work on the horses timeline not their own.

Arliss Thorsteinson

  Arliss is exceptional at understanding the needs of each individual horse he works with. He believes that solid basics are necessary to producing rideable horse for his clients.  He has extremely good instinct and problem solves each situation with a clear path to follow for both horse and rider!  As quoted by one of their mentors "the horses just love him" and you can see that with each horse. 


 Arliss grew up with a western background , specializing in roping.  In 2013 Arliss made the switch to English riding, and has never looked back. He has worked with hundreds of horses and riders over the last twenty years. In 2015 he dropped his full time work as a Journeyman Electrician to pursue training and coaching full time.

Cassandra Thorsteinson

 Cassandra enjoys teaching riders of all levels and working with difficult  horses.  She loves to stay moving and is rarely caught lounging, even if it is a day off. She feels that we are never done learning and continues to educate herself.


  Having grown up on the back of a horse and in a boarding barn. Cassandra understands the ins and outs of running a 50+ horse boarding facility, managing a show team and lesson schedule. In her younger years she showed multiple horses in various events in Dressage, Hunters and Show Jumping. She was also a member of the Canadian Pony Club as a Jr, and from 2013-2019 ran the Queen City Pony Club.  She was also able to compete in the Saskatchewan summer games as a rider in 1996 for Dressage, 2000 for Show Jumping and in 2016 as the head coach for the Equestrian sport for her zone. 

  Off the horse she is a certified coach with EC, she has worked through the EC course design with Sandra Conrad, sat for four years on the Board of director for the Sask Horse Federation including holding the VP of Sport position for two years and is currently mentoring with some of Canada's most respected officials and trainers. 

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