Måsek's is run by Annika and Pär Jansson, who together have over 50 years of experience in dog sledding sports. Annika got her first sled dog at the age of 23; it was an Alaskan Husky named Terry. Her next dog was an Alaskan Malamute, which also marked the start of a long and still successful competitive career, but for the past 10 years, with Siberian Huskies. Annika has competed in Nordic style, sled dog style in winter, mid-distance, long-distance, and sprint. In dryland mushing, she has medals in both scooter and cart. Pär borrowed his first Siberian Husky before buying his beloved Kewatin. Together, they share a passion for dogs and nature, which is reflected in the activities offered at Måsek's and also at the facility, which is their shared farm where they live with their dogs in an incredibly beautiful environment.

More than half of the dogs are World Championship, Swedish Championship, and European Championship medalists. Annika and Pär earned some of these merits in 2019 when Annika won World Championship silver in the 6-dog sled sprint in Bessans, France, and then went on to win a World Championship gold in 6-dog dryland rig in Nybro, Sweden, where Pär also struck gold and took home a World Championship gold in 2-dog scooter.