
Ion Science Ltd.Barnsley, United Kingdom

Bescient Technologies Co., Ltd.

Zhejiang Tiandi Environmental Protection Technology Co., Ltd.

Sensirion Holding AGZURICH, Switzerland

HighChem Co., Ltd.

CVW CleanTech Inc.Alberta, Canada

Purus, Inc.

LifeAire Systems LLCPennsylvania, United States

Reterro, Inc.California, United States

Teledyne Tekmar Co.Ohio, United States

ETHERA SARhone-Alpes, France

Biorem, Inc.Ontario, Canada