| CMColorado Mechanical Systems INC | Longmont | CO | — | ◇ UNVERIFIED |
| CICommodore Industries | Jackson | TN | — | ◇ UNVERIFIED |
| CHCommonwealth Heating & Cooling | Virginia Beach | VA | — | ◇ UNVERIFIED |
| CMComponents Manufacturing CO | Trenton | SC | — | ◇ UNVERIFIED |
| CICompressor Industries LLC | Melvindale | MI | — | ◇ UNVERIFIED |
| CUCompressors Unlimited International LLC | Dallas | TX | — | ◇ UNVERIFIED |
| CICompu-aire INC | Whittier | CA | — | ◇ UNVERIFIED |
| CCompu-metal,inc | Ontario | CA | — | ◇ UNVERIFIED |
| COCondair Operations LLC | Richmond | VA | — | ◇ UNVERIFIED |
 Confab Manufacturing Company LLC | Sun Valley | CA | — | ◇ UNVERIFIED |
| CBConserv Building Services of North Carolina, LLC | Morrisville | NC | — | ◇ UNVERIFIED |
| CCConsol Controls CORP Plt No 4 | El Segundo | CA | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators CORP | Galt | CA | — | ◇ UNVERIFIED |
| CMContract Metal Products INC | Tracy | CA | — | ◇ UNVERIFIED |
| CBCook Brothers Heating & Cooling LLC | Wichita | KS | — | ◇ UNVERIFIED |
| CTCooling Tower Depot, INC. | Bedford Park | IL | — | ◇ UNVERIFIED |
| CTCooling Towers Systems, INC | Macon | GA | — | ◇ UNVERIFIED |
| CACOOLLINE America Inc. | Alpharetta | GA | — | ◇ UNVERIFIED |
| CACOOLLINE America Inc. | Alpharetta | GA | — | ◇ UNVERIFIED |
| CCCopeland CORP | Shelby | NC | — | ◇ UNVERIFIED |
| CICornelius, INC. | Glendale Heights | IL | — | ◇ UNVERIFIED |
| CLCorral-130 LLC | Compton | CA | — | ◇ UNVERIFIED |
 Cospolich, INC. | Norco | LA | — | ◇ UNVERIFIED |
| CFCrown Fixtures INC Dba Crowntonka Walk Ins | Winnebago | MN | — | ◇ UNVERIFIED |
| CACrystal Air & Water, INC. | Gainesville | FL | — | ◇ UNVERIFIED |
| CCCrystal Comfort INC. | New York | NY | — | ◇ UNVERIFIED |
| CLCsafe, LLC | Moraine | OH | — | ◇ UNVERIFIED |
| CSCullum Services INC | Lexington | SC | — | ◇ UNVERIFIED |
| CCCustom Cooler INC | Elkton | KY | — | ◇ UNVERIFIED |
| DADaikin Applied America, INC. (formally Mcquay International) | Scottsboro | AL | — | ◇ UNVERIFIED |
 Daikin Applied Americas INC | Faribault | MN | — | ◇ UNVERIFIED |
| Daikin Applied Americas INC | Faribault | MN | — | ◇ UNVERIFIED |
| DADaikin Applied - Owatonna East | Owatonna | MN | — | ◇ UNVERIFIED |
| DODaikin Office Upgrade | Verona | VA | — | ◇ UNVERIFIED |
| DCDalou CORP Dba Tomco Products | Azusa | CA | — | ◇ UNVERIFIED |
| DSDanfoss Scroll Technologies | Arkadelphia | AR | — | ◇ UNVERIFIED |
| DTDanfoss Turbocor Compressors - Building E | Tallahassee | FL | — | ◇ UNVERIFIED |
| DAData Aire INC | Orange | CA | — | ◇ UNVERIFIED |
| DCData Cooling Technologies (1667080058) | Streetsboro | OH | — | ◇ UNVERIFIED |
| DIDayco Inc/pottstown Boro | Pottstown | PA | — | ◇ UNVERIFIED |
| DUDbk USA INC | Spartanburg | SC | — | ◇ UNVERIFIED |
| DPD&b Precision Sheetmetal | Oakdale | CA | — | ◇ UNVERIFIED |
| DEDCG Enterprises LLC | Tampa | FL | — | ◇ UNVERIFIED |
| DHDelphi Harrison Thermal Systems | Dayton | OH | — | ◇ UNVERIFIED |
| DFDelta Folding Gates INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| DFDer Floradale LLC | South El Monte | CA | — | ◇ UNVERIFIED |
| DIDickson Industrial Park, INC. | Newark | OH | — | ◇ UNVERIFIED |
| DMDiscover Metal Spinning | Wilmington | CA | — | ◇ UNVERIFIED |
| DIDixie-narco INC | Ranson | WV | — | ◇ UNVERIFIED |
| DWD.j. Wagner Heating & Air Conditioning INC | Westville | NJ | — | ◇ UNVERIFIED |
| DIDoucette Industries, Inc. | York | PA | — | ◇ UNVERIFIED |
| DPDunan Precision Manufacturing, INC. | Memphis | TN | — | ◇ UNVERIFIED |
| DIDunco INC. | Lawrence | KS | — | ◇ UNVERIFIED |
| DIDunham-bush INC | Riverside | CA | — | ◇ UNVERIFIED |
| DMDurable Machinery Company LLC | Brooklyn | NY | — | ◇ UNVERIFIED |
| DTDu Technologies, INC. | Moonachie | NJ | — | ◇ UNVERIFIED |
| EMEarth Manufacturing, Llc* | Norwood | MO | — | ◇ UNVERIFIED |
| EIEastern Impressions | Santa Ana | CA | — | ◇ UNVERIFIED |
| EBEasybar Beverage Systems INC | Tualatin | OR | — | ◇ UNVERIFIED |
| EREasy Refrigeration CO | Norcross | GA | — | ◇ UNVERIFIED |
| ECEcb Corporation Dba Omniduct | Buena Park | CA | — | ◇ UNVERIFIED |
| EMEclipse Metal Fabrication INC | Lathrop | CA | — | ◇ UNVERIFIED |
| EPEcs Precision INC | Fremont | CA | — | ◇ UNVERIFIED |
| ECEcu Corporation | Cincinnati | OH | — | ◇ UNVERIFIED |
| EHElectrolux Home Products (formerly Frigidaire) | Greenville | MI | — | ◇ UNVERIFIED |
| ECElliot-lewis Corporation | Swedesboro | NJ | — | ◇ UNVERIFIED |
| EIEllis Ind INC | El Monte | CA | — | ◇ UNVERIFIED |
| EPE.l. Pruitt Company | Champaign | IL | — | ◇ UNVERIFIED |
| ECEmerson Climate Technologies | Lebanon | MO | — | ◇ UNVERIFIED |
| ECEmerson Climate Technologies | Rushville | IN | — | ◇ UNVERIFIED |
| ECEmerson Climate Technologies | Beverly | MA | — | ◇ UNVERIFIED |
| EAEncore Air Incorporated | Simi Valley | CA | — | ◇ UNVERIFIED |
| ECEnergy Center Omaha, LLC | Omaha | NE | — | ◇ UNVERIFIED |
| ELEnergy Labs INC | San Diego | CA | — | ◇ UNVERIFIED |
| EAEngineered Air | De Soto | KS | — | ◇ UNVERIFIED |
| ESEnverid Systems INC | Westwood | MA | — | ◇ UNVERIFIED |
| EAEnvironmental Air Systems, INC. | High Point | NC | — | ◇ UNVERIFIED |
| EAEnvironmental Air Systems, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
 Environmental Devices, INC. | Clifton | NJ | — | ◇ UNVERIFIED |
| EREpic Refrigeration, LLC | Fraser | MI | — | ◇ UNVERIFIED |
| EEEtter Engineering Company, INC. | Bristol | CT | — | ◇ UNVERIFIED |
| EAEverest a Division of Wright | Anaheim | CA | — | ◇ UNVERIFIED |
| EIEveridge INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| EHExcellence Heating & Cooling LLC | Idaho Falls | ID | — | ◇ UNVERIFIED |
| ELExel Logistics Distribution | Byhalia | MS | — | ◇ UNVERIFIED |
| EIExpress Integrated Technologies | Tulsa | OK | — | ◇ UNVERIFIED |
| ECExtreme Custom Sheet Metal, INC | Ontario | CA | — | ◇ UNVERIFIED |
| FHFairway Heating & Cooling | Union City | CA | — | ◇ UNVERIFIED |
| FNFedders North America INC | Effingham | IL | — | ◇ UNVERIFIED |
| FIFiltco INC | Fort Myers | FL | — | ◇ UNVERIFIED |
 Filter Technologies INC | West Jordan | UT | — | ◇ UNVERIFIED |
| FHFlorida Heat Pump | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| FFFmc Foodtech INC | Northfield | MN | — | ◇ UNVERIFIED |
| FCFogel Caribbean CORP | Aguadilla | PR | — | ◇ UNVERIFIED |
| FRFoodservice Refrigeration, Inc. | Boynton Beach | FL | — | ◇ UNVERIFIED |
| FRFoodservice Refrigeration, Inc. | Boynton Beach | FL | — | ◇ UNVERIFIED |
| FHFourman's Heating & Cooling | Greenville | OH | — | ◇ UNVERIFIED |
| FSFour Seasons Grapevine Manufacturing Ope | Grapevine | TX | — | ◇ UNVERIFIED |
| FSFour Seasons Heating & Air Conditioning LLC | Brooksville | KY | — | ◇ UNVERIFIED |
| FRFredrick Ramond INC | Cerritos | CA | — | ◇ UNVERIFIED |
