| TYTerry York | Shelbyville | TN | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TBThe Blue Rooster Company | Nevis | MN | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TTTherm Tec INC | Sherwood | OR | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| THThompson's Hearth & Home | Issaquah | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TSTractor Supply CO. | Bloomington | IN | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TSTractor Supply Company #2055 | Kent | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TUTrane US INC | Salt Lake City | UT | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TSTrue Solar USA | Santa Clara | CA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TTTsm Thermal Solutions Mfg | Livonia | MI | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TETurner Equipment Company, INC. | Goldsboro | NC | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| TCTwin City Edina Fireplace Showroom | Edina | MN | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| TITylohelo INC | Cokato | MN | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| USU.s. Sheetmetal INC. | West Bridgewater | MA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| UTUtility Trailer Sales of Central California INC | Lathrop | CA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WBWa317937098 - Blaze King Industries INC | Walla Walla | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WSWa317937125 - Snorkel Stove Company the | Seattle | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WIWa317938400 - Innovative Hearth Products LLC | Auburn | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WTWa317941846 - Travis Industries INC | Mukilteo | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WSWalter Snedeker, INC. | Chickasha | OK | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WFWarehouse-waste From Mexico | El Paso | TX | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WTWarming Trends, LLC | Englewood | CO | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WTWarming Trends, LLC | Englewood | CO | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WHWatlow Heater Technology Center | Fenton | MO | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WCWayne Combustion Systems | Fort Wayne | IN | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WIWcr Incorporated | Fresno | CA | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| WFWilliams Furnace CO | Colton | CA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WEWolfe Engineering, INC. | San Jose | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| YFYankee Fireplace Grill & Patio | Middleton | MA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| YSYork Shipley | Hampton | VA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| YEYoung Engineering & Manufacturing INC | San Dimas | CA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| ZZiggy's | Spokane | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
