| ECEmpire Comfort Systems | Belleville | IL | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| EPEngineered Plastic Components INC | Kalona | IA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| EIEntegris INC | Franklin | MA | Plastics and Rubber Products Manufacturing326113 | 20-99 | ◐ LIKELY ACTIVE |
| EDEpiroc Drilling Tools LLC | Fort Loudon | PA | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| ESErie Strayer CO | Erie | PA | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| EIEskridge, INC. | Olathe | KS | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| EIEtw INC | Waukesha | WI | Machinery Manufacturing333512 | 20-99 | ◐ LIKELY ACTIVE |
| EMEvapco - Madera | Madera | CA | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| EKEx-cell Kaiser LLC | Franklin Park | IL | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
| EMExmark Manufacturing CO | Beatrice | NE | Fabricated Metal Product Manufacturing332212 | 100-499 | ◐ LIKELY ACTIVE |
Expert Semiconductor Technology, INC. | Scotts Valley | CA | Machinery Manufacturing333242 | — | ◐ LIKELY ACTIVE |
| EIExtru-tech INC | Sabetha | KS | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| FMFabricated Metal Products | Milwaukee | WI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| FSFairbanks Scales INC | Meridian | MS | Machinery Manufacturing333997 | — | ◐ LIKELY ACTIVE |
| FRFalcon Road Maintenance Equipment LLC | Freeland | MI | Machinery Manufacturing333111 | 20-99 | ◐ LIKELY ACTIVE |
| FIFederal Industries | Belleville | WI | Machinery Manufacturing333410 | 100-499 | ◐ LIKELY ACTIVE |
| FMFederal Mogul CORP | Van Wert | OH | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| FSFederal Screw Works CO | Big Rapids | MI | Fabricated Metal Product Manufacturing332722 | 100-499 | ◐ LIKELY ACTIVE |
| FEFeldmeier Equipment | Syracuse | NY | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
| FEFeldmeier Equipment - LF Riverside | Little Falls | NY | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
Filtration Group INC | Joliet | IL | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| FDFirst Dallas | Dallas | TX | Fabricated Metal Product Manufacturing332321 | 500+ | ◐ LIKELY ACTIVE |
| FDFirst Dcex | Dallas | TX | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| FAFlextronics America, LLC | Orangeburg | SC | Fabricated Metal Product Manufacturing332212 | 500+ | ◐ LIKELY ACTIVE |
| FIFlory Industries | Salida | CA | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| FLFlowserve - Lynchburg Operations | Lynchburg | VA | Fabricated Metal Product Manufacturing332919 | — | ◐ LIKELY ACTIVE |
| FMFluid Management LP | Wheeling | IL | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| FSFluid System Components INC | Depere | WI | Fabricated Metal Product Manufacturing332912 | 20-99 | ◐ LIKELY ACTIVE |
| FTFmc Technologies, INC | Tupelo | MS | Machinery Manufacturing333922 | — | ◐ LIKELY ACTIVE |
| FFormtek | Clinton | ME | Machinery Manufacturing333513 | 20-99 | ◐ LIKELY ACTIVE |
| FWFort Wayne Wire Die INC | Fort Wayne | IN | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| FIFriesen's INC | Detroit Lakes | MN | Fabricated Metal Product Manufacturing332912 | 100-499 | ◐ LIKELY ACTIVE |
| FIFrost INC | Grand Rapids | MI | Fabricated Metal Product Manufacturing332991 | 20-99 | ◐ LIKELY ACTIVE |
| FFrymaster | Shreveport | LA | Fabricated Metal Product Manufacturing332999 | 500+ | ◐ LIKELY ACTIVE |
| FGFt. Greely - Main Post-tp for Fort Greely - Main Post | Fairbanks | AK | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| FTFullerton Tool Company, INC. | Saginaw | MI | Fabricated Metal Product Manufacturing332216 | 100-499 | ◐ LIKELY ACTIVE |
Gamma Scientific INC | San Diego | CA | Machinery Manufacturing333314 | — | ◐ LIKELY ACTIVE |
| GDGardner Denver, INC. | Aledo | TX | Fabricated Metal Product Manufacturing332912 | — | ◐ LIKELY ACTIVE |
| GBGarlinghouse Brothers INC | Heber Springs | AR | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| GTGarr Tool CO INC | Alma | MI | Machinery Manufacturing333512 | 100-499 | ◐ LIKELY ACTIVE |
| GCGarvey CORP | Hammonton | NJ | Machinery Manufacturing333922 | — | ◐ LIKELY ACTIVE |
Gasbarre Products INC | Dubois | PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| GAGe Appliances - Louisville | Louisville | KY | Machinery Manufacturing333249 | — | ◐ LIKELY ACTIVE |
| GGGe Gas Turbines (greenville) L.l.c. | Greenville | SC | Machinery Manufacturing333611 | — | ◐ LIKELY ACTIVE |
| GEGeneral Electric Steam Turbine Generator Global | Schenectady | NY | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| GEGeneral Engineering Company | Abingdon | VA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| GFGeneral Filters, INC. | Novi | MI | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
| GKGeneral Kinematics CORP | Crystal Lake | IL | Machinery Manufacturing333998 | 100-499 | ◐ LIKELY ACTIVE |
| GAGenesis Attachments | Superior | WI | Machinery Manufacturing333120 | 100-499 | ◐ LIKELY ACTIVE |
| GIGerald Industries | Gerald | MO | Fabricated Metal Product Manufacturing332911 | 100-499 | ◐ LIKELY ACTIVE |