Zehnder North America is a subsidiary of the Swiss-based Zehnder Group, which employees approximately 4,000 associates in their various entities worldwide. The name Zehnder stands for world leading indoor climate solutions. In North America, there are four individually operating entities (under Zehnder North America). These entities are: Runtal North America (Haverhill, MA), Zehnder Rittling (Buffalo, NY), Zehnder America (Hampton, NH), and LifeBreath (London, Ontario Canada).