Only a little more than 25 years old, Gree is among the youngest, major HVAC companies in the world. Despite their relative youth, they have catapulted to the head of the pack. Today, Gree produces one out of every three air conditioners built each year. The world HVAC market is valued at more than 110 billion dollars. So, one out of three air conditioners is a lot of air conditioners. Time will tell if Gree can keep this impressive growth rate going.