| 1 | Mur-Tex Fiberglass | | USA |
| 2 | C.T.P. Manufacturing Inc. | | USA |
| 3 | FrozenQ PC Mods LLC | | USA |
| 4 | Ceramic Cooling Tower Corp. | | USA |
| 5 | Johnson Bros. Roll Forming Co. | | USA |
| 6 | Cleveland Gear Co. | | USA |
| 7 | Chardon Laboratories Inc. | | USA |
| 8 | KE - Kellett Enterprises Inc. | | USA |
| 9 | Ver Sales Inc. | | USA |
| 10 | Advantage Engineering Inc. | | USA |
| 11 | Tower Tech | | USA |
| 12 | Mesco Corp. | | USA |
| 13 | American Fan Co. | | USA |
| 14 | CE Shepherd Co. Inc. | | USA |
| 15 | Cold Shot Chillers | | USA |
| 16 | Cooling Tower Systems Inc. | | USA |
| 17 | H & F Manufacturing Corp. | | USA |
| 18 | Cooling Tower Products | | USA |
| 19 | Alpha Engineered Refrigeration | | USA |
| 20 | American Chillers | | USA |
| 21 | AirFlo Cooling Technologies Inc. | | USA |
| 22 | Calvitti Co. | | USA |
| 23 | GCI Refrigeration Technologies Inc | | USA |
| 24 | Advanced Tower Technology | | USA |
| 25 | Dry Coolers Inc. | | USA |
| 26 | Moore Plastics | | USA |
| 27 | Custom Pultrusions Inc. | | USA |
| 28 | Air Solution Co. | | USA |
| 29 | Amtech LLC | | USA |
