| Air | Heating & Piping Systems | Armstrong International, Inc. | http://www.armstronginternational.com/ |
| Air | Heating & Piping Systems | Spirax Sarco, Inc. | http://www.spiraxsarco.com/ |
| Air | Heating & Piping Systems | Spirotherm Inc. | http://www.spirotherm.com |
| Air | Heating & Piping Systems | Thrush Co. Inc. | http://www.thrushco.com |
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| AMTROL, Inc. | http://www.amtrol.com |
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| Bell & Gossett | http://www.bellgossett.com |
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| Caleffi North America, Inc. | http://www.caleffi.us/ |
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| ITT Corp. | http://www.bellgossett.com |
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| National Energy Control Corp. | http://www.neccdelivers.com |
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| Spirotherm, Inc. | http://www.spirotherm.com |
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| Taco, Inc. | http://www.taco-hvac.com |