| AMApplied Materials INC | Milpitas | CA | — | ◇ UNVERIFIED |
| AMApplied Materials, INC. | Santa Clara | CA | — | ◇ UNVERIFIED |
| AMApplied Materials, INC. | Santa Clara | CA | — | ◇ UNVERIFIED |
| AMApplied Materials, INC. | Sunnyvale | CA | — | ◇ UNVERIFIED |
| AMApplied Materials, Inc, Centra | Santa Clara | CA | — | ◇ UNVERIFIED |
| ALAqua Logic, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| BWBabcock & Wilcox | Copley | OH | — | ◇ UNVERIFIED |
| BIBell Intercoolers, LLC | Spring Branch | TX | — | ◇ UNVERIFIED |
| BIBfs Industries, LLC | Butner | NC | — | ◇ UNVERIFIED |
| BKBird Key Plan B LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| BUBitzer US INC. | Flowery Branch | GA | — | ◇ UNVERIFIED |
| BFBlazer Fabricating LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| BTBoiler Tube CO of America | La Porte | TX | — | ◇ UNVERIFIED |
| BIBos-hatten INC. | Orchard Park | NY | — | ◇ UNVERIFIED |
| BFBrenda Feit | Los Angeles | CA | — | ◇ UNVERIFIED |
| BNBwxt Nuclear Operations Group INC | Lynchburg | VA | — | ◇ UNVERIFIED |
| CMCalifornia Marine Cleaning | San Diego | CA | — | ◇ UNVERIFIED |
| CAC & a Metal Finishing | Saint Louis | MO | — | ◇ UNVERIFIED |
| CICarbon INC | Redwood City | CA | — | ◇ UNVERIFIED |
| CLChart Lifecycle | Franklin | IN | — | ◇ UNVERIFIED |
| CCChemfab Clute Facility | Clute | TX | — | ◇ UNVERIFIED |
| CFCicanese Fabrication INC | Punta Gorda | FL | — | ◇ UNVERIFIED |
| CBCleaver Brooks Sales & Service | Dallas | TX | — | ◇ UNVERIFIED |
| CPCmg Process INC | Sharpsville | PA | — | ◇ UNVERIFIED |
| CMCoffman Mfg CORP | Cary | IL | — | ◇ UNVERIFIED |
| CIColumbia Industries LLC | Hillsboro | OR | — | ◇ UNVERIFIED |
| CSCooling Systems Technologies | North Las Vegas | NV | — | ◇ UNVERIFIED |
| CICust-o-fab, INC. | Beaumont | TX | — | ◇ UNVERIFIED |
| CSCust-o-fab Specialty Services, LLC | Mcpherson | KS | — | ◇ UNVERIFIED |
| DSDatalogic Scanning | Eugene | OR | — | ◇ UNVERIFIED |
| DADept. Army-ft. Leavenworth | Fort Leavenworth | KS | — | ◇ UNVERIFIED |
| DRDouble Robotics, INC | Burlingame | CA | — | ◇ UNVERIFIED |
| DRDoyle & Roth Manufacturing Company, INC. | Simpson | PA | — | ◇ UNVERIFIED |
| DHDunn Heat Exchangers | Bay City | TX | — | ◇ UNVERIFIED |
| ESEast Side Plating Plant 5 | Portland | OR | — | ◇ UNVERIFIED |
| E2Eco 2007 | Broken Arrow | OK | — | ◇ UNVERIFIED |
| EBEnglish Boiler & Tube INC | Richmond | VA | — | ◇ UNVERIFIED |
| EBEnterprise Baler | Santa Ana | CA | — | ◇ UNVERIFIED |
| EWEvapco West, INC. | Madera | CA | — | ◇ UNVERIFIED |
| ETExtreme Turbo Systems INC | Vancouver | WA | — | ◇ UNVERIFIED |
| FSFabsco Shell & Tube, LLC | Sapulpa | OK | — | ◇ UNVERIFIED |
| FHFluid Handling LLC | Cheektowaga | NY | — | ◇ UNVERIFIED |
| FWFrontier Welded Products, INC. | Abilene | TX | — | ◇ UNVERIFIED |
| FIFTDM Investments, LLC | Locust Grove | OK | — | ◇ UNVERIFIED |
| FHFulton Heating Solutions INC | East Syracuse | NY | — | ◇ UNVERIFIED |
| FAFurnace and Tube Service, INC. | Gonzales | LA | — | ◇ UNVERIFIED |
| GHGea Heat Exchangers, Incorporated, Phe Division | York | PA | — | ◇ UNVERIFIED |
| GHGea Heat Exchangers, Inc., Plant Three | Catoosa | OK | — | ◇ UNVERIFIED |
| GRGea Rainey Heat Exchangers, INC. | Catoosa | OK | — | ◇ UNVERIFIED |
| GNGe-hitachi Nuclear Energy | San Jose | CA | — | ◇ UNVERIFIED |
| GKGeo. Knight & CO. INC. | Brockton | MA | — | ◇ UNVERIFIED |
| GEGlauber Equipment Corporation | Lancaster | NY | — | ◇ UNVERIFIED |
| GTGooch Thermal Manufacturing, INC. | Fogelsville | PA | — | ◇ UNVERIFIED |
| GFGratton Fabricating & Welding, INC. | Adamsburg | PA | — | ◇ UNVERIFIED |
| HCHarsco Corp/east Stroudsburg Plt | East Stroudsburg | PA | — | ◇ UNVERIFIED |
| HIHarsco Industrial Hammco, LLC | Owasso | OK | — | ◇ UNVERIFIED |
| HHHastings Hvac INC | Hastings | NE | — | ◇ UNVERIFIED |
| HTHeat Transfer Equipment CO. | Tulsa | OK | — | ◇ UNVERIFIED |
| HGHouston Global Heat Transfer LLC | Humble | TX | — | ◇ UNVERIFIED |
| HEHoward's Engineering | Pico Rivera | CA | — | ◇ UNVERIFIED |
| HCHydac Cooling Systems (denver, Nc) | Denver | NC | — | ◇ UNVERIFIED |
| HIHydrodyne, INC. | Massillon | OH | — | ◇ UNVERIFIED |
| IHIndiana Heat Transfer CORP. | Plymouth | IN | — | ◇ UNVERIFIED |
| IMIndustrial Manufacturing Solutions, LLC | Jennings | OK | — | ◇ UNVERIFIED |
| IIIsotherm, INC. | Arlington | TX | — | ◇ UNVERIFIED |
| KKelvion (cimarron) | Catoosa | OK | — | ◇ UNVERIFIED |
| KKelvion (keystone) | Catoosa | OK | — | ◇ UNVERIFIED |
| KBKewanee Boiler Mfg LLC | Kewanee | IL | — | ◇ UNVERIFIED |
| KHKoch Heat Transfer CO LP | Houston | TX | — | ◇ UNVERIFIED |
| LRLam Research, Balazs | Fremont | CA | — | ◇ UNVERIFIED |
| LBLawrence Brothers INC. Plant 2 | Rock Falls | IL | — | ◇ UNVERIFIED |
| LRLba Realty | Hayward | CA | — | ◇ UNVERIFIED |
| LRLkq Roseville (heatex Radiator Manufacturing Plant) | Roseville | MI | — | ◇ UNVERIFIED |
| LLL & L Industries, INC. | White | GA | — | ◇ UNVERIFIED |
| MWMary Wells Junior High School | Southbridge | MA | — | ◇ UNVERIFIED |
| MKMc Kenna Boiler Wks INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| MSMechanical Systems INC | Benson | MN | — | ◇ UNVERIFIED |
| MSMechanical Systems INC | Dundas | MN | — | ◇ UNVERIFIED |
| MBMercedes Benz of Walnut Creek | Walnut Creek | CA | — | ◇ UNVERIFIED |
| MCMicro Cooling Concepts, INC. | Huntington Beach | CA | — | ◇ UNVERIFIED |
| MSMkm Sarasota LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| MTModine Transferencia De Calor Sa De Cv | Laredo | TX | — | ◇ UNVERIFIED |
| MPMonolithic Power Systems INC | San Jose | CA | — | ◇ UNVERIFIED |
| MMMoorehead Machinery and Boiler Company | Wheatland | WY | — | ◇ UNVERIFIED |
| MSMotiv Space Systems | Pasadena | CA | — | ◇ UNVERIFIED |
| MIMunroe, INC. | Ambridge | PA | — | ◇ UNVERIFIED |
| MIMunroe, INC. | Ringgold | GA | — | ◇ UNVERIFIED |
| MCMunters Corporation | Natural Bridge Station | VA | — | ◇ UNVERIFIED |
| MVMustang Vacuum Systems | Sarasota | FL | — | ◇ UNVERIFIED |
| NCNalco Company | Ontario | CA | — | ◇ UNVERIFIED |
| NINanonexus, INC | San Jose | CA | — | ◇ UNVERIFIED |
| NBNational Boiler Service, INC. | Queen City | TX | — | ◇ UNVERIFIED |
| NBNational Boiler Service, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| NBNational Boiler Services INC. | Covington | VA | — | ◇ UNVERIFIED |
| PDParamount Duct and Vent Cleaning LCC | Red Lodge | MT | — | ◇ UNVERIFIED |
| PBParker Boiler CO. | Commerce | CA | — | ◇ UNVERIFIED |
| PCParts Cleaning Technologies | Bowling Green | KY | — | ◇ UNVERIFIED |
| PMPlant Maintenance Service Corporation | Memphis | TN | — | ◇ UNVERIFIED |
| PBPlouffe's Boiler and Mechanical Service INC. | Middlebury | VT | — | ◇ UNVERIFIED |
| PIPoppe INC. | Hickory | NC | — | ◇ UNVERIFIED |