| DCDynamic Cylinder Head LLC | Worthing | SD | — | ◇ UNVERIFIED |
| ESEagle Specialty Products, INC. | Southaven | MS | — | ◇ UNVERIFIED |
| EFEastern Fleet Services Limited Liability Company | Bordentown | NJ | — | ◇ UNVERIFIED |
| ECEaton CORP | Belmond | IA | — | ◇ UNVERIFIED |
| ENEberspaecher North America INC | Novi | MI | — | ◇ UNVERIFIED |
| EIEcheneidae INC Dba Remora | Wixom | MI | — | ◇ UNVERIFIED |
| ESEmbassy Suites Hotel | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| EREquipment Repair Services LLC | Portland | OR | — | ◇ UNVERIFIED |
| ETErock - Titan | Houston | TX | — | ◇ UNVERIFIED |
| EIEtagen INC | Menlo Park | CA | — | ◇ UNVERIFIED |
| EEEvans Expressmart # 420 | Hartford | VT | — | ◇ UNVERIFIED |
| FPFaa Paso Robles Airport - Prb Vor (prbbsx) | Paso Robles | CA | — | ◇ UNVERIFIED |
| FMFairbanks Morse Defense | Theodore | AL | — | ◇ UNVERIFIED |
| FMFairbanks Morse Defense | Jacksonville Beach | FL | — | ◇ UNVERIFIED |
| FMFairbanks Morse Defense | Chesapeake | VA | — | ◇ UNVERIFIED |
| FCFauquier County Landfill Gas LLC | Warrenton | VA | — | ◇ UNVERIFIED |
| FCFaurecia Clean Mobility | Columbus | IN | — | ◇ UNVERIFIED |
| FUFca US LLC Kokomo Engine Plant | Kokomo | IN | — | ◇ UNVERIFIED |
| FMFederal Mogul | Blacksburg | VA | — | ◇ UNVERIFIED |
| FMFederal Mogul Powertrain LLC | Blacksburg | VA | — | ◇ UNVERIFIED |
| FMFederal Mogul Powertrain Sys | Flowery Branch | GA | — | ◇ UNVERIFIED |
| FMFederal Mogul - Power Train Systems | Schofield | WI | — | ◇ UNVERIFIED |
| FCFiat Chrysler Automobiles, Trenton Engine Complex | Trenton | MI | — | ◇ UNVERIFIED |
| FAFire and Rescue Maintenance LLC | Mission | TX | — | ◇ UNVERIFIED |
| FCFive Cities Fire Authority | Arroyo Grande | CA | — | ◇ UNVERIFIED |
| FRFoley Rebuild Center (air) | Valley Center | KS | — | ◇ UNVERIFIED |
| FMFord Motor Company, Cep 1 | Brookpark | OH | — | ◇ UNVERIFIED |
| FMFord Motor Company - Romeo Engine Plant | Romeo | MI | — | ◇ UNVERIFIED |
| FRFountain Race Engines llc | Sarasota | FL | — | ◇ UNVERIFIED |
| FLFreight Link LLC | Brookshire | TX | — | ◇ UNVERIFIED |
| GDG2 Diesel, LLC | Harrisburg | PA | — | ◇ UNVERIFIED |
| GEGas Engine Supply, LLC | Mound House | NV | — | ◇ UNVERIFIED |
| GDGe Distributed Power INC - Waukesha Power Systems | Waukesha | WI | — | ◇ UNVERIFIED |
| GEGeneral Electric Company | Waukesha | WI | — | ◇ UNVERIFIED |
| GMGeneral Motors Creative Services | Wixom | MI | — | ◇ UNVERIFIED |
| GEGlobal Engine Manufacturing Alliance | Dundee | MI | — | ◇ UNVERIFIED |
| GAGonzales Auto Repair | Santa Maria | CA | — | ◇ UNVERIFIED |
| GTGordon Truck Centers Dba Freightliner Northwest | Redding | CA | — | ◇ UNVERIFIED |
| GHGp Headers INC | Barnesville | MN | — | ◇ UNVERIFIED |
| GEGriner Engineering Inc | Bloomington | IN | — | ◇ UNVERIFIED |
| HUHalla Uriman | Union City | CA | — | ◇ UNVERIFIED |
| HPHasport Performance, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| HUHeads Up Properties LLC | New Lebanon | OH | — | ◇ UNVERIFIED |
| HRHeritage Ranch Csd | Paso Robles | CA | — | ◇ UNVERIFIED |
| HRHeritage Ranch Csd - Lift Station 10 | Paso Robles | CA | — | ◇ UNVERIFIED |
| HRHeritage Ranch Csd - Tract 1990 Booster Station | Paso Robles | CA | — | ◇ UNVERIFIED |
| HTHeritage Truck Equipment INC. | Akron | OH | — | ◇ UNVERIFIED |
| HHH & H Specialty Coating | Henderson | TN | — | ◇ UNVERIFIED |
| HPHigh Precision Partners LLC | Macedon | NY | — | ◇ UNVERIFIED |
| HCHigh-star Corporation | Garden City | MI | — | ◇ UNVERIFIED |
| HSHilton San Diego Convention Center Hotel | San Diego | CA | — | ◇ UNVERIFIED |
| HAHitachi Astemo Indiana, INC. | Greenfield | IN | — | ◇ UNVERIFIED |
| HPHolley Performance Prods INC | Springfield | TN | — | ◇ UNVERIFIED |
| HPHolley Performance Products Aberdeen | Aberdeen | MS | — | ◇ UNVERIFIED |
| HDHome Depot Store #1052 | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| HPHonda Performance Development, INC | Santa Clarita | CA | — | ◇ UNVERIFIED |
| HPHre Products, LLC | Nazareth | PA | — | ◇ UNVERIFIED |
| HRHutchison Racing Engines | Sacramento | CA | — | ◇ UNVERIFIED |
| HAHwashin America Corporation - Plant #3 | Greenville | AL | — | ◇ UNVERIFIED |
| IBI B M Global Services-hazelwood | Hazelwood | MO | — | ◇ UNVERIFIED |
| IEIlmor Engineering, INC. | Plymouth | MI | — | ◇ UNVERIFIED |
| ILImj LLC | Irvine | CA | — | ◇ UNVERIFIED |
| IRIndiana Research Institute | Columbus | IN | — | ◇ UNVERIFIED |
| IMIndustrial Maintenance & Engineering Corporation | La Vergne | TN | — | ◇ UNVERIFIED |
| IIqms | Paso Robles | CA | — | ◇ UNVERIFIED |
| JVJacobs Vehicle Systems | Bloomfield | CT | — | ◇ UNVERIFIED |
| JEJamestown Engine Plant Cummins, INC. | Lakewood | NY | — | ◇ UNVERIFIED |
| JAJ and M Diesel | Lynnwood | WA | — | ◇ UNVERIFIED |
| JEJasper Engines and Transmissions INC. Branch # 70 | Jasper | IN | — | ◇ UNVERIFIED |
| JCJdk Corporation Dba Dk Shell | Portsmouth | VA | — | ◇ UNVERIFIED |
| JPJesus Perez Fuel Injection Inc | Houston | TX | — | ◇ UNVERIFIED |
| JBJim Burns Engines | Ayer | MA | — | ◇ UNVERIFIED |
| JAJim's Automotive Machine Shop INC | Gill | CO | — | ◇ UNVERIFIED |
| JEJ&k Engines | Mount Juliet | TN | — | ◇ UNVERIFIED |
| JIJlg Industries, INC. | Houston | TX | — | ◇ UNVERIFIED |
| JEJust Emissions & Inspections | Salt Lake City | UT | — | ◇ UNVERIFIED |
| KPKaiser Permanente Post Acute Care Center | San Leandro | CA | — | ◇ UNVERIFIED |
| KCKb Cores | Kankakee | IL | — | ◇ UNVERIFIED |
| KTKdm Tuners INC. | Corona | CA | — | ◇ UNVERIFIED |
| KKK & K Manufacturing | Sparta | MI | — | ◇ UNVERIFIED |
| KCKohler Company | Hattiesburg | MS | — | ◇ UNVERIFIED |
| KCKohler Company Hattiesburg Engine Plant2 | Hattiesburg | MS | — | ◇ UNVERIFIED |
| KAKomatsu (formerly a and J Diesel Repair) | Gillette | WY | — | ◇ UNVERIFIED |
| KTKon Tiki Inn | Pismo Beach | CA | — | ◇ UNVERIFIED |
| KLKs Large Bore Pistons LLC | Marinette | WI | — | ◇ UNVERIFIED |
| KMKurt Manufacturing Company | Pueblo | CO | — | ◇ UNVERIFIED |
| LLLalo's Lifts and Drops LLC | Albuquerque | NM | — | ◇ UNVERIFIED |
| LLLectron, LLC | Hawkins | TX | — | ◇ UNVERIFIED |
| L3Level 3 Communications, LLC | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| LNLkq Northern California Redding | Redding | CA | — | ◇ UNVERIFIED |
| LOLos Osos Csd - 16th Street Booster Station | Los Osos | CA | — | ◇ UNVERIFIED |
| LOLos Osos Wastewater Plant - West Paso Pump Station | Los Osos | CA | — | ◇ UNVERIFIED |
| LOLowe's of Paso Robles | Paso Robles | CA | — | ◇ UNVERIFIED |
| MCMahle Cylinder Division (former) | Trumbull | CT | — | ◇ UNVERIFIED |
| MEMahle Engine Components USA INC | Franklin | KY | — | ◇ UNVERIFIED |
| MEMahle Engine Components USA INC | Caldwell | OH | — | ◇ UNVERIFIED |
| MEMahle Engine Components USA Inc-manchester | Manchester | MO | — | ◇ UNVERIFIED |
| MLMainline LLC | Sublimity | OR | — | ◇ UNVERIFIED |
| MEMainspring Energy INC | Milpitas | CA | — | ◇ UNVERIFIED |
| MTMartin Technologies | New Hudson | MI | — | ◇ UNVERIFIED |
