| Air to Air | Heat Pipe | AAON, Inc. | http://www.aaon.com/ |
| Air to Air | Parallel Plate | AAON, Inc. | http://www.aaon.com/ |
| Air to Air | Run Around Coil | AAON, Inc. | http://www.aaon.com/ |
| Air to Air | Sensible-Latent Heat Exchange | AAON, Inc. | http://www.aaon.com/ |
| Air to Air | Shell & Tube | AAON, Inc. | http://www.aaon.com/ |
| Air to Air | Rotary | Airxchange Inc. | http://www.airxchange.com |
| Air to Air | Run Around Coil | Airxchange Inc. | http://www.airxchange.com |
| Air to Air | Heat Pipe | CES Group, Inc. | http://www.ces-group.com |
| Air to Air | Parallel Plate | CES Group, Inc. | http://www.ces-group.com |
| Air to Air | Rotary | CES Group, Inc. | http://www.ces-group.com |
| Air to Air | Run Around Coil | CES Group, Inc. | http://www.ces-group.com |
| Air to Air | Sensible-Latent Heat Exchange | CES Group, Inc. | http://www.ces-group.com |
| Air to Air | Heat Pipe | Dectron Inc. | http://www.dectron.com |
| Air to Air | Heat Pipe | Des Champs Technologies | http://www.des-champs.com/ |
| Air to Air | Parallel Plate | Des Champs Technologies | http://www.des-champs.com/ |
| Air to Air | Rotary | Des Champs Technologies | http://www.des-champs.com/ |
| Air to Air | Run Around Coil | Des Champs Technologies | http://www.des-champs.com/ |
| Air to Air | Sensible-Latent Heat Exchange | Des Champs Technologies | http://www.des-champs.com/ |
| Air to Air | Heat Pipe | Heat Pipe Technology, Inc. | http://www.heatpipe.com |
| Air to Air | Parallel Plate | Nautica Dehumidifiers, Inc. | http://www.nauticadehumid.com |
| Air to Air | Rotary | Nautica Dehumidifiers, Inc. | http://www.nauticadehumid.com |
| Air to Air | Run Around Coil | Nautica Dehumidifiers, Inc. | http://www.nauticadehumid.com |
| Air to Air | Sensible-Latent Heat Exchange | Nautica Dehumidifiers, Inc. | http://www.nauticadehumid.com |
| Air to Air | Run Around Coil | Nu-Air Ventilation Systems, Inc. | http://www.nu-airventilation.com |
| Air to Air | Sensible-Latent Heat Exchange | PennBarry | http://www.pennbarry.com |
| Air to Air | Run Around Coil | RenewAire LLC | http://www.renewaire.com/ |
| Air to Air | Sensible-Latent Heat Exchange | RenewAire LLC | http://www.renewaire.com/ |
| Air to Air | Rotary | Reznor | http://www.rezspec.com |
| Air to Air | Rotary | Rooftop Systems Inc. | http://www.rooftopsystems.com |
| Air to Air | Run Around Coil | Rooftop Systems Inc. | http://www.rooftopsystems.com |
| Air to Air | Run Around Coil | SEMCO Inc. | http://www.semcoinc.com/ |
| Air to Air | Run Around Coil | Solar Turbines Inc. | http://www.solarturbines.com |
| Air to Air | Heat Pipe | Venmar CES Inc. | http://www.venmarces.com |
| Air to Air | Rotary | Venmar CES Inc. | http://www.venmarces.com |
| Air to Air | Rotary | Venmar CES Inc. | http://www.venmarces.com |
| Air to Air | Run Around Coil | Venmar CES Inc. | http://www.venmarces.com |
| Air to Air | Sensible-Latent Heat Exchange | Venmar CES Inc. | http://www.venmarces.com |
| Air to Air | Parallel Plate | XeteX, Inc. | http://www.xetexinc.com |
| Air to Air | Rotary | XeteX, Inc. | http://www.xetexinc.com |
| Air to Air | Run Around Coil | XeteX, Inc. | http://www.xetexinc.com |
| Air to Water |
| AAON, Inc. | http://www.aaon.com/ |
| Air to Water |
| CES Group, Inc. | http://www.ces-group.com |
| Air to Water |
| Solar Turbines Inc. | http://www.solarturbines.com |
| Air to Water |
| Vital Air Technologies | http://www.vital-air.com |
| Boiler Blowdown |
| Industrial Steam | http://www.industrialsteam.com |
| Boiler Blowdown |
| Penn Separator Corp. | http://www.pennseparator.com |
| Heat Pump |
| AAON, Inc. | http://www.aaon.com/ |
| Heat Pump |
| Multistack | http://www.multistack.com |
| Heat Recovery Ventilators |
| Airxchange Inc. | http://www.airxchange.com |
| Heat Recovery Ventilators |
| Des Champs Technologies | http://www.des-champs.com/ |
| Heat Recovery Ventilators |
| Hartzell Fan, Inc. | http://www.hartzellfan.com |
| Heat Recovery Ventilators |
| Heat Pipe Technology, Inc. | http://www.heatpipe.com |
| Heat Recovery Ventilators |
| Nautica Dehumidifiers, Inc. | http://www.nauticadehumid.com |
| Heat Recovery Ventilators |
| Nu-Air Ventilation Systems, Inc. | http://www.nu-airventilation.com |
| Heat Recovery Ventilators |
| RenewAire LLC | http://www.renewaire.com/ |
| Heat Recovery Ventilators |
| Research Products Corp. | http://www.aprilaire.com
|
| Heat Recovery Ventilators |
| Venmar CES Inc. | http://www.venmarces.com |
| Heat Recovery Ventilators |
| York International | http://www.york.com |
| Liquid to Liquid |
| Tranter PHE, Inc. | http://www.tranterphe.com |
| Refrigerant to Water |
| AAON, Inc. | http://www.aaon.com/ |
| Refrigerant to Water |
| Aprilaire | http://www.aprilaire.com |
| Refrigerant to Water |
| Paul Mueller Co. | http://www.muel.com |
| Ventilators |
| Hartzel Fan, Inc. | http://www.hartzellfan.com |
| Water to Water |
| Penn Separator Corp. | http://www.pennseparator.com |
| Water to Water |
| Tranter PHE, Inc. | http://www.tranterphe.com |
| Air Filters |
| Advanced Filtration Concepts | http://www.gasturbineinletairfilters.com |
| Air Filters |
| Lydall Filtration / Separation | http://www.lydall.com |
| Exhaust Air Fans |
| Danotek Motion Technologies | http://www.danotekmotion.com |
|
| C-B Nebraska Boiler | http://www.neboiler.com |
|
| Deltak LLC | http://www.deltak.com |
|
| Solar Turbines Inc. | http://www.solarturbines.com |
|
| Tranter PHE, Inc. | http://www.tranterphe.com |
|
| Turbo Power Systems
| http://www.turbopowersystems.com
|