Air & Waste Management Association (A&WMA) is a non-profit, non-partisan professional organization that enhances knowledge and expertise by providing a neutral forum for information exchange, professional development, networking opportunities, public education, and outreach to more than 6000 environmental professionals in 65 countries.

Halpern - Jacobs represents the premier manufacturers of Heating, Ventilating, Air Conditioning, and Refrigeration Equipment and After Market Parts.

The Mobile Air Conditioning Society (MACS) Worldwide is a pioneer trade association for manufacturers, service repair and distribution for the vehicle air conditioning industry.