| gamanet.org | Gas Appliance Manufacturers Association |
| ari.org | ARI CoolNet |
| rses.org | Refrigeration Service Engineers Society |
| reta.com | Refrigerating Engineers & Technicians Association | Reta | |
| mcaa.org | The Mechanical Contractors Association Of America! |
| isa.org | ISA, the International Society for Measurement and Control |
| iarw.org | International Association of Refrigerated Warehouses |
| hrai.ca | Hrai - The Heating, Refrigeration And Air Conditioning Institute Of Canada |
| hardinet.org | Heating, Airconditioning and Refrigeration Distributors International |
| ashrae.org | American Society of Heating, Refrigerating, and Air-Conditioning Engineers |
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