HVAC Controls/EMS Manufacturers

• Siemens Building Technologies USA
• Siemens Leed Green Building Solutions

HVAC Contractors/Organizations/Software

• American Training Institute
• Area 51 HVAC
• ASHRAE
• ASME International
• Automated Buildings
• BUILDINGS Magazine
• Building Team
• Continental Automated Buildings Association
• Control Engineering Magazine
• Eley Associates
• Elite Software
• Energy User News
• EPRI HVAC&R Center
• Engineering Systems Magazine
• HPAC Magazine
• HVAC2000.com
• HVAC Estimator
• HVAC Forum
• HVAC Jobs (North America)
• HVAC On-Line
• Valves & Actuators