| HAHearth and Home Technologies INC | Mount Pleasant | IA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| MEMarley Engineered Products | Bennettsville | SC | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
Modine Manufacturing CO | Buena Vista | VA | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| ATArray Technologies INC | Albuquerque | NM | Fabricated Metal Product Manufacturing332510 | 100-499 | ◐ LIKELY ACTIVE |
| EIEcr International INC | Dunkirk | NY | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| ECEmpire Comfort Systems | Belleville | IL | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| IIIea INC | Kenosha | WI | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| PFPower Flame Incorporated | Parsons | KS | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| UBUS Boiler INC | Lancaster | PA | Fabricated Metal Product Manufacturing332410 | 100-499 | ◐ LIKELY ACTIVE |
| WFWilliams Furnace CO | Colton | CA | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| AIAerco International INC | Blauvelt | NY | Machinery Manufacturing333318 | 100-499 | ◐ LIKELY ACTIVE |
| ECEmpire Comfort Systems, INC. | Belleville | IL | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| KEKing Electrical Manufacturing Co | Seattle | WA | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| WWeil-McLain | Eden | NC | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| WFWilliams Furnace CO | Colton | CA | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| WPWinder Price Industries | Winder | GA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| ZRZehnder Rittling | Buffalo | NY | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| BTBeckett Thermal Solutions North Ridgeville | North Ridgeville | OH | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| EEELiN Energy, LLC. | Brookshire | TX | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| FTFulton Thermal Corp - Centerville Road | Pulaski | NY | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| HNHayward Nashville | Nashville | TN | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| LCLake City Plant | Lake City | MN | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| MIMestek, Inc., Sterling Heating Division | Farmville | NC | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| MAMiura America Co., Ltd | Miura America Co., Ltd./2200 Steven B Smith Blvd./Rockmart | GA | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
Modine Manufacturing Company - West Kingston | West Kingston | RI | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
Modine Manufacturing - LB White Onalaska | Onalaska | WI | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| RPRH Peterson | City of Industry | CA | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| TCTaco Cranston | Cranston | RI | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |
| WHWatts Heating and Hot Water Solutions, LLC - Fort Worth | Fort Worth | TX | Machinery Manufacturing333414 | 100-499 | ◐ LIKELY ACTIVE |