| AMAllied Machine & Engineering | Dover | OH | Machinery Manufacturing333515 | 100-499 | ◐ LIKELY ACTIVE |
| AIAlvord-polk, INC. | Millersburg | PA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| AGAmarillo Gear | Amarillo | TX | Machinery Manufacturing333612 | 100-499 | ◐ LIKELY ACTIVE |
| AAAmerican Augers | West Salem | OH | Machinery Manufacturing333120 | 100-499 | ◐ LIKELY ACTIVE |
| APAmerican Panel CORP | Ocala | FL | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| ARAmerican Rheinmetall Systems, LLC | Biddeford | ME | Machinery Manufacturing333310 | 20-99 | ◐ LIKELY ACTIVE |
| ASAmerican Sleeve Bearing | Stafford Springs | CT | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| AIAmg Industries INC | Mount Vernon | OH | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| APAmt Pump Company | Royersford | PA | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
Anderson Hydra Platforms, LLC | York | SC | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| AIAndritz Inc/muncy Foundry | Muncy | PA | Machinery Manufacturing333243 | — | ◐ LIKELY ACTIVE |
Angi Energy Systems, LLC | Janesville | WI | Machinery Manufacturing333298 | — | ◐ LIKELY ACTIVE |
| AOA O Smith Water Treatment North America | Haltom City | TX | Machinery Manufacturing333310 | 100-499 | ◐ LIKELY ACTIVE |
| ATApex Tool Group, LLC | Dayton | OH | Fabricated Metal Product Manufacturing332212 | — | ◐ LIKELY ACTIVE |
Applied Physics Technologies, INC. | Mcminnville | OR | Machinery Manufacturing333295 | — | ◐ LIKELY ACTIVE |
| AMArcosa Marine Components, LLC (plant - 1080 Dba Wintech) | Bossier City | LA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| APArmstrong Pumps | North Tonawanda | NY | Fabricated Metal Product Manufacturing332912 | 100-499 | ◐ LIKELY ACTIVE |
| AMArnold Machine INC | Tiffin | OH | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| ATArray Technologies INC | Albuquerque | NM | Fabricated Metal Product Manufacturing332510 | 100-499 | ◐ LIKELY ACTIVE |
| AMArrow Material Handling Products | Lenexa | KS | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
Ashby Cross Company, INC. | Newburyport | MA | Machinery Manufacturing333914 | — | ◐ LIKELY ACTIVE |
| AIAshland Industries INC | Ashland | WI | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| AMAspen Manufacturing | Humble | TX | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| AAstec | Rossville | GA | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| ABAstec Burlington | Burlington | WI | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| AIAstec Industries, INC. | Chattanooga | TN | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| ACAtlas Copco Comptec LLC | Voorheesville | NY | Machinery Manufacturing333912 | 100-499 | ◐ LIKELY ACTIVE |
| AOAts Ohio INC | Lewis Center | OH | Machinery Manufacturing333298 | 100-499 | ◐ LIKELY ACTIVE |
| AIAutodie International | Grand Rapids | MI | Machinery Manufacturing333510 | 100-499 | ◐ LIKELY ACTIVE |
| ACAutomated Conveyor Systems | West Memphis | AR | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| ASAutomated Systems of Tacoma INC | Tacoma | WA | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| AHAutomatic Handling International INC | Erie | MI | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
A-vac Industries, INC | Anaheim | CA | Machinery Manufacturing333911 | — | ◐ LIKELY ACTIVE |
| BTBachman Tool & Die Company | Independence | IA | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
Baron Blakeslee Sfc INC | Williamstown | WV | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
B & B Gear and Machine Company, INC. | New Lebanon | OH | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
| BABekum America Corporation | Williamston | MI | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| BPBell Power Systems | Essex | CT | Machinery Manufacturing333618 | 20-99 | ◐ LIKELY ACTIVE |
| BOBern Optics INC | Westfield | MA | Machinery Manufacturing333314 | 20-99 | ◐ LIKELY ACTIVE |
| BMBest Metal Products | Grand Rapids | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
Bh Bunn CO | Lakeland | FL | Machinery Manufacturing333993 | — | ◐ LIKELY ACTIVE |
| BGBidell Gas Compression | Weirton | WV | Machinery Manufacturing333912 | 100-499 | ◐ LIKELY ACTIVE |
| BJBig John Mfg. CORP | Heber Springs | AR | Machinery Manufacturing333111 | 1-19 | ◐ LIKELY ACTIVE |
| BIBirtley Industrial Equipment CORP | Lexington | KY | Machinery Manufacturing333131 | 20-99 | ◐ LIKELY ACTIVE |
| BSBitzer Scroll INC | Syracuse | NY | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| BSBitzer Scroll, INC. | Syracuse | NY | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| BHBobalee Hydraulics, INC | Laurens | IA | Machinery Manufacturing333995 | 100-499 | ◐ LIKELY ACTIVE |
Bocra Industries, INC. | Seabrook | NH | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| BUBorghi USA INC | West Burlington | IA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| BWBorg Warner Turbo System | Arden | NC | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |