The Sub-Zero Freezer Company began in 1945, founded in Madison, Wisconsin by Westye F. Bakke. Anticipating a strong demand in refrigeration and freezer needs after World War II, he started the Sub-Zero company in an old two-car garage. Sub-Zero acquired the Wolf Range Corporation in 2000. This acquisition gave Sub-Zero a more complete variety of kitchen appliances in their product line: stoves, wall ovens, cooktops, and ventilation equipment, in addition to their refrigerators and freezers.
The Sub-Zero company helped pioneer built-in refrigeration in the mid-1950s, improving kitchen layouts by fitting the refrigerators and freezers within existing cabinet space. Sub-Zero refrigerators are 24" deep, so installation is flush with kitchen cabinets; but they are typically wider than other refrigerators to keep the same storage volume as refrigerators with more depth. Sub-Zero refrigerators come in two basic varieties: a version with the exterior in stainless steel, and a customizable version that can accommodate panels to match the kitchen cabinets.
Today Sub-Zero continues to offer both aesthetics and innovation in their appliance design. One of the company's recent innovations includes its dual refrigeration system, which employs two entirely separate cooling systems to preserve food freshness and prolong its longevity.