| APAdell Plastics | Halethorpe | MD | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| AIAdeptus Industries INC | Bradenton | FL | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| ASAde-wifco Steel Products | Hutchinson | KS | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| AIAdf International | Great Falls | MT | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| AGAdient Greenfield | Greenfield | OH | Plastics and Rubber Products Manufacturing326150 | 100-499 | ◐ LIKELY ACTIVE |
Admet, INC. | Norwood | MA | Computer and Electronic Product Manufacturing334513 | 20-99 | ◐ LIKELY ACTIVE |
| APAdmiral Pkg | Providence | RI | Paper Manufacturing322221 | 20-99 | ◐ LIKELY ACTIVE |
| AMAds Machinery CORP | Warren | OH | Machinery Manufacturing333516 | 1-19 | ◐ LIKELY ACTIVE |
| ASAd Systems | Everett | WA | Fabricated Metal Product Manufacturing332321 | 20-99 | ◐ LIKELY ACTIVE |
| ATAd Tech Industries INC | Watertown | WI | Chemical Manufacturing325510 | 100-499 | ◐ LIKELY ACTIVE |
| AAAdvanced Atomization Technologies LLC | Clyde | NY | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| ABAdvanced Biotech | Totowa | NJ | Food Manufacturing311930 | 100-499 | ◐ LIKELY ACTIVE |
| ABAdvanced Blending Solutions LLC | Wallace | MI | Machinery Manufacturing333248 | 100-499 | ◐ LIKELY ACTIVE |
| ACAdvanced Chemical CO | Warwick | RI | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| AFAdvanced Filtration Systems INC | Champaign | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| ADAdvance Die Cast LLC | Milwaukee | WI | Primary Metal Manufacturing331310 | 20-99 | ◐ LIKELY ACTIVE |
Advanced Imaging INC | Wilmington | MA | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
Advanced Industries INC | Chelsea | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| AIAdvanced Input Devices | Coeur D Alene | ID | Computer and Electronic Product Manufacturing334118 | 100-499 | ◐ LIKELY ACTIVE |
| AMAdvanced Magnesium Alloys CORP (amacor) | Anderson | IN | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
Advanced Manufacturing, INC. | Saint Petersburg | FL | Computer and Electronic Product Manufacturing334418 | — | ◐ LIKELY ACTIVE |
| AMAdvanced Marine Performance, LLC | Flippin | AR | Transportation Equipment Manufacturing336214 | 100-499 | ◐ LIKELY ACTIVE |
| APAdvanced Polymer Coatings LTD | Avon | OH | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
Advanced Precision Machining, INC | Garden City | ID | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| APAdvanced Probing Systems | Louisville | CO | Computer and Electronic Product Manufacturing334515 | 1-19 | ◐ LIKELY ACTIVE |
| ASAdvanced Sawmill Machinery, INC. | Holt | FL | Machinery Manufacturing333210 | 1-19 | ◐ LIKELY ACTIVE |
| ASAdvanced Sheetmetal Associates, LLC | Middlefield | CT | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| ASAdvanced Steel Technology | Rome | GA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| ATAdvanced Technology Products | Milford Center | OH | Plastics and Rubber Products Manufacturing326121 | 20-99 | ◐ LIKELY ACTIVE |
| ATAdvanced Thermal Systems INC | Lancaster | NY | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| ATAdvanced Tooling Specialists, Inc. | Menasha | WI | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| ATAdvanced Tool - Machine INC | Mayfield | KY | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| AEAdvance Engineering Company | Canton | MI | Fabricated Metal Product Manufacturing332119 | — | ◐ LIKELY ACTIVE |
| AFAdvance Fittings CORP | Elkhorn | WI | Fabricated Metal Product Manufacturing332919 | 20-99 | ◐ LIKELY ACTIVE |
| ARAdvance Research Chemicals INC | Catoosa | OK | Chemical Manufacturing325180 | 100-499 | ◐ LIKELY ACTIVE |
| AMAdvantage Metal Powders | Ridgway | PA | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| ATAdvantage Terrafab LLC | Muskogee | OK | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| AIAdvanta Industries INC | Petersburg | MI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| AMAdvics Manufacturing Georgia, L.l.c. | Lagrange | GA | Transportation Equipment Manufacturing336340 | 100-499 | ◐ LIKELY ACTIVE |
| ATAearo Technologies LLC | Indianapolis | IN | Plastics and Rubber Products Manufacturing326121 | — | ◐ LIKELY ACTIVE |
| AIAend Industries, LLC | Hutto | TX | Miscellaneous Manufacturing339920 | 20-99 | ◐ LIKELY ACTIVE |
| AAAero Arc | Gardena | CA | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
Aero Bending Company | Palmdale | CA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| AMAero Manufacturing CORP | Beverly | MA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| AMAero Metal Forms INC | Wichita | KS | Transportation Equipment Manufacturing336413 | 1-19 | ◐ LIKELY ACTIVE |
| AIAerometals, INC. | El Dorado Hills | CA | Machinery Manufacturing333512 | 100-499 | ◐ LIKELY ACTIVE |
| APAero Plastics INC | Renton | WA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| APAero Precision Engineering, INC. | Los Angeles | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
Aerospace and Defense Manufacturing INC. | Temecula | CA | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| AIAervoe Industries Incorporated. | Gardnerville | NV | Chemical Manufacturing325510 | 100-499 | ◐ LIKELY ACTIVE |