| Cooling Tower |
| Delta Cooling Towers | http://www.deltacooling.com |
| District Heating |
| Aspen Water Inc. | http://www.aspenwater.com |
| District Heating |
| Hilliard Corp. | http://www.hilliardcorp.com |
| Emergency |
| Chlorine Specialties, Inc. | http://www.cl2s.com |
| Feeders | Chemical | Bryan Steam LLC | http://www.bryanboilers.com |
| Inhibitors | Corrosion | American Polywater Corp. | http://www.polywater.com |
| Inhibitors | Corrosion | Facility Shield International | http://www.facilityshield.com/ |
| Chemicals | District Heating | Aspen Water Inc. | http://www.aspenwater.com |
| Chemicals | District Heating | Seaco Technologies Inc | http://www.seacotech.com |
| Equipment |
| American Plumber, Pentair Filtration | http://www.americanplumber.com |
| Equipment |
| AMTROL, Inc. | http://www.amtrol.com |
| Equipment |
| Aquathin Business Center | http://www.aquathin.com |
| Equipment |
| Atlantic Ultraviolet Corp. | http://www.ultraviolet.com |
| Equipment |
| Carlon Meter Co., Inc. | http://www.carlonmeter.com |
| Equipment |
| 3M | http://www.3m.com |
| Equipment |
| Falcon Stainless, Inc. | http://www.falconstainless.com |
| Equipment |
| Flint & Walling, Inc. | http://www.flintandwalling.com |
| Equipment |
| Flood Master Inc. | http://www.floodmaster.com |
| Equipment |
| Highland Tank | http://www.highlandtank.com |
| Equipment |
| Keystone Filter | http://www.keystonefilter.com |
| Equipment |
| M & S Valve and Fittings Co. | http://www.msvalves.com |
| Equipment |
| Miura Boiler Co., Ltd. | http://www.miuraboiler.com |
| Equipment |
| Superior Manufacturing Division, Magnatech Corp. | http://www.superiorwaterconditioners.com |
| Plant | District Heating | Aspen Water Inc. | http://www.aspenwater.com |
| Plant | District Heating | Jamison Products LP | http://www.jamisonproducts.com |
| Plant | District Heating | Koch Membrane Systems Inc. | http://www.kochmembrane.com |