Marcum Technologies is a company built upon the sport of ice-fishing, bringing forth patented technology and exclusive features unprecedented in ice electronics. Though at MarCum, our mantra is that features for feature’s sake are worthless unless they put more fish on ice. For the last 20 years, MarCum has brought the bulk of fish-catching invention to the ice market, with a long list of patents, sonar-firsts, and innovations immediately copied by the rest of the industry. MarCum units are hand-built, one at a time, from a blank circuit board on up. All of those advancements have happened right here in the heart of the ice belt, meaning all Marcum sonars are American-made. Below is a list of this year’s systems, and what make them each the top-performing sonar in their respective classes.