Aldrico, INC. | Wyoming | IL | 20–99 | ● ACTIVE |
Borga Steel Buildings & Components INC | Fowler | CA | — | ● ACTIVE |
Chromalox, INC. | La Vergne | TN | 100–499 | ● ACTIVE |
Crown Technical Systems | Fontana | CA | 100–499 | ● ACTIVE |
| DIDurex International CORP. | Cary | IL | 100–499 | ● ACTIVE |
| MIMestek INC | Westfield | MA | 100–499 | ● ACTIVE |
Ogi Process Equipment, INC. | Sand Springs | OK | 20–99 | ● ACTIVE |
Preferred Utilities Manufacturing Corporation | Danbury | CT | 100–499 | ● ACTIVE |
Premier Furnace Specialists INC | Farmington Hills | MI | 20–99 | ● ACTIVE |
Ravenswood Studio INC | Lincolnwood | IL | 100–499 | ● ACTIVE |
Super Radiator Coils Limited Partnership | Richmond | VA | — | ● ACTIVE |
The Mellen CO INC | Concord | NH | 1–19 | ● ACTIVE |
Ace Heaters LLC | Corona | CA | — | ● ACTIVE |
Advanced Cooling Technoglies INC | York | PA | 20–99 | ● ACTIVE |
Alternate Energy Technologies, L.l.c. | Green Cove Springs | FL | — | ● ACTIVE |
| ATAmerimade Technology, INC. | Livermore | CA | — | ● ACTIVE |
Barnes & Jones, LLC | Randolph | MA | — | ● ACTIVE |
Cambridge Engineering, INC. | Chesterfield | MO | — | ● ACTIVE |
Chromalox INC | Ogden | UT | — | ● ACTIVE |
Compucraft Industries, INC | Santee | CA | — | ● ACTIVE |
Compumeric Engineering, INC. | Ontario | CA | — | ● ACTIVE |
Energy Reconnaissance INC | Anaheim | CA | — | ● ACTIVE |
Fcx Systems INC | Morgantown | WV | — | ● ACTIVE |
| GMGreentech Manufacturing, INC | International Falls | MN | 20–99 | ● ACTIVE |
Hale Industries, INC | Fortville | IN | 1–19 | ● ACTIVE |
Hapco INC | Kent | OH | 20–99 | ● ACTIVE |
Heatron, INC | Leavenworth | KS | — | ● ACTIVE |
Hi-heat Industries, INC. | Lewistown | MT | — | ● ACTIVE |
Indeeco LLC | Saint Louis | MO | — | ● ACTIVE |
Josephson Manufacturing Company | Fort Dodge | IA | — | ● ACTIVE |
Ldj Manufacturing, INC. | Pella | IA | — | ● ACTIVE |
| MSMamac Systems, INC. | Chanhassen | MN | 20–99 | ● ACTIVE |
Melco Steel INC | Azusa | CA | — | ● ACTIVE |
Messersmith Manufacturing, INC. | Bark River | MI | — | ● ACTIVE |
Neptech, INC. | Highland | MI | — | ● ACTIVE |
New Buck CORP | Spruce Pine | NC | — | ● ACTIVE |
O2 Cool Manufacturing LLC | Decatur | TX | 20–99 | ● ACTIVE |
Precision Control Systems INC | Eden Prairie | MN | — | ● ACTIVE |
Ramda Metal Specialties, INC. | Gardena | CA | — | ● ACTIVE |
Rock Energy Systems LLC | Janesville | WI | 100–499 | ● ACTIVE |
| SSScully Signal Company | Wilmington | MA | — | ● ACTIVE |
| TETayco Engineering, INC. | Cypress | CA | — | ● ACTIVE |
Tempco Electric Heater Corporation | Wood Dale | IL | — | ● ACTIVE |
| TEThe Electric Heater CO | Stratford | CT | — | ● ACTIVE |
| TPThermetic Products, INC. | Minneapolis | MN | — | ● ACTIVE |
Tri Fab Associates, INC | Fremont | CA | — | ● ACTIVE |
| TLTutco, LLC | Cookeville | TN | — | ● ACTIVE |
| UPUS Precision Sheet Metal, INC. | Riverside | CA | — | ● ACTIVE |
Watlow Electric Manufacturing CO | Saint Louis | MO | 100–499 | ● ACTIVE |
Accu-therm LLC | Saint Louis | MO | — | ● ACTIVE |
Associated Boiler Line Equipment Co., INC. | Milford | CT | — | ● ACTIVE |
Caliente LLC | Fort Wayne | IN | — | ● ACTIVE |
Chromalox INC | Pittsburgh | PA | — | ● ACTIVE |
Cosine CORP | Stanford | CA | — | ● ACTIVE |
Cowles Operating Company | North Haven | CT | — | ● ACTIVE |
| DIDg Innovations, LLC | Lakeville | MN | — | ● ACTIVE |
Emergent Coils, LLC | Denver | CO | — | ● ACTIVE |
Endeavour Group, Inc., the | Salt Lake City | UT | — | ● ACTIVE |
Entherm INC | Burnsville | MN | — | ● ACTIVE |
Equipment Source, INC. | Fairbanks | AK | — | ● ACTIVE |
Faber Burner Company | Lock Haven | PA | — | ● ACTIVE |
Gld Company LLC | Delmont | PA | — | ● ACTIVE |
Harvest Thermal, INC. | Kensington | CA | — | ● ACTIVE |
Havtech Supply LLC | Columbia | MD | — | ● ACTIVE |
Heat Energy Systems Company, INC. | Springfield | TN | — | ● ACTIVE |
Heat Wagons INC | Valparaiso | IN | — | ● ACTIVE |
Honeywell International INC | Englewood | CO | — | ● ACTIVE |
Hotfoil - Ehs, INC. | Hamilton | NJ | — | ● ACTIVE |
Hotstart Sales, LLC | Spokane Valley | WA | — | ● ACTIVE |
| IHIcebox Heat Pumps INC. | Petaluma | CA | — | ● ACTIVE |
Infinity Thermal CORP. | Charlton | MA | — | ● ACTIVE |
| IAInstruments and Controls, INC. | Westminster | MD | — | ● ACTIVE |
International Thermal Research INC. | Vancouver | WA | — | ● ACTIVE |
Mf Fire INC | Baltimore | MD | — | ● ACTIVE |
Midwest Radiant Heaters, LLC | Omaha | NE | — | ● ACTIVE |
Mitchtech LLC | Carrollton | TX | — | ● ACTIVE |
Power Plus International, INC. | Mcdonough | GA | — | ● ACTIVE |
| RBRio Bravo I INC. | Saint Augustine | FL | — | ● ACTIVE |
| SWSchmitt Walter H & Associates INC | West Newton | PA | — | ● ACTIVE |
Smoky Mountain Emporium INC | Taylorsville | NC | — | ● ACTIVE |
Solarset INC | Center | CO | — | ● ACTIVE |
Spacecell LLC | Elk Grove | CA | — | ● ACTIVE |
Suncatch LTD. | Evergreen | CO | — | ● ACTIVE |
Sundrum Solar LLC | Hudson | MA | — | ● ACTIVE |
Templeton Coal CO INC | Terre Haute | IN | — | ● ACTIVE |
| TETotem Equipment and Supply, INC. | Anchorage | AK | — | ● ACTIVE |
Touchstone Home Products, INC. | Exton | PA | — | ● ACTIVE |
Tru-flow Systems, INC. | Magna | UT | — | ● ACTIVE |
Valad Electric Heating CORP. | Montgomery | NY | — | ● ACTIVE |
Vulcan Electric CO | Porter | ME | — | ● ACTIVE |
Willow Springs S.r.a. LLC | Wittenberg | WI | — | ● ACTIVE |
| CBCentral Boiler, INC | Greenbush | MN | 100–499 | ◐ LIKELY ACTIVE |
| HAHearth and Home Technologies INC | Mount Pleasant | IA | 100–499 | ◐ LIKELY ACTIVE |
| MEMarley Engineered Products | Bennettsville | SC | 100–499 | ◐ LIKELY ACTIVE |
Modine Manufacturing CO | Buena Vista | VA | 100–499 | ◐ LIKELY ACTIVE |
| TEThermally Engineered Manufactured Products, INC | Gardena | CA | — | ◐ LIKELY ACTIVE |
Trans Fx, INC. | Oxnard | CA | — | ◐ LIKELY ACTIVE |
| UBUS Boiler INC | Lancaster | PA | 100–499 | ◐ LIKELY ACTIVE |
Wisconsin Oven CORP | East Troy | WI | — | ◐ LIKELY ACTIVE |
| BCBriskheat Corporation | Columbus | OH | — | ◐ LIKELY ACTIVE |