| AGAmerican Galvanizing Company | Folsom | NJ | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| AMAmerican Motive Power INC | Dansville | NY | Fabricated Metal Product Manufacturing332313 | 1-19 | ◐ LIKELY ACTIVE |
American Precision Products, LLC | Pompano Beach | FL | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| APAmerican Products | Strafford | MO | Fabricated Metal Product Manufacturing332116 | 100-499 | ◐ LIKELY ACTIVE |
| APAmerican Products | Strafford | MO | Fabricated Metal Product Manufacturing332000 | 100-499 | ◐ LIKELY ACTIVE |
| ARAmerican Roller Bearing & Manufacturing INC | Hiddenite | NC | Fabricated Metal Product Manufacturing332991 | — | ◐ LIKELY ACTIVE |
| ASAmerican Sleeve Bearing | Stafford Springs | CT | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
American Standard Manufacturing, INC. | Central Bridge | NY | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| ATAmerican Trim | Sidney | OH | Fabricated Metal Product Manufacturing332116 | — | ◐ LIKELY ACTIVE |
| ATAmerican Trim LLC Pc3 | Wapakoneta | OH | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| ALAmerifab, LLC | Weatherford | TX | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| AHAmeri-forge Houston | Houston | TX | Fabricated Metal Product Manufacturing332111 | — | ◐ LIKELY ACTIVE |
| ATAmes True Temper INC | Harrisburg | PA | Fabricated Metal Product Manufacturing332216 | — | ◐ LIKELY ACTIVE |
| ASAmetek Specialty Metal Prod Div | Eighty Four | PA | Fabricated Metal Product Manufacturing332114 | — | ◐ LIKELY ACTIVE |
| APAmmunition Plant | Mcalester | OK | Fabricated Metal Product Manufacturing332993 | — | ◐ LIKELY ACTIVE |
| ACAmphenol Corporation | Danbury | CT | Fabricated Metal Product Manufacturing332721 | — | ◐ LIKELY ACTIVE |
| ASAmphenol Spectra Strip | Hamden | CT | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| AAAmron, a Division of Amtec Corporation | Antigo | WI | Fabricated Metal Product Manufacturing332992 | — | ◐ LIKELY ACTIVE |
| ASAmthor Steel | Erie | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| AIAmtrol Incorporated | Paducah | KY | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
Anchor Fabrication, LLC | Saginaw | TX | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| AFAnchor Fabricators INC | Clayton | OH | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| ABAnderson Brass CO | Hartsville | SC | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| AIAndronaco Industries | Kentwood | MI | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| ACAnel Corporation | Winona | MS | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| AAngus-palm | Greeneville | TN | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| AEAnomil Ents Incorporated Dba Danco Metal Surfacing | Santa Ana | CA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| ATAntaya Technologies CORP | Warwick | RI | Fabricated Metal Product Manufacturing332812 | 100-499 | ◐ LIKELY ACTIVE |
| AOA O Smith Water Products Company | Mcbee | SC | Fabricated Metal Product Manufacturing332410 | — | ◐ LIKELY ACTIVE |
| ASApache Stainless Equip CORP Industrial Dr | Beaver Dam | WI | Fabricated Metal Product Manufacturing332000 | — | ◐ LIKELY ACTIVE |
| ATApex Tool Group, LLC | Dayton | OH | Fabricated Metal Product Manufacturing332212 | — | ◐ LIKELY ACTIVE |
| AHApi Heat Transfer | Iron Ridge | WI | Fabricated Metal Product Manufacturing332310 | 1-19 | ◐ LIKELY ACTIVE |
| AMApmar Metal Finishing | Springfield | MA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| AMApollo Metals LTD | Bethlehem | PA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| AMAps Materials INC * | Dayton | OH | Fabricated Metal Product Manufacturing332812 | 100-499 | ◐ LIKELY ACTIVE |
| AWAp Westshore | Oshkosh | WI | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| AMApx Mitchell Machine Shop | Greencastle | PA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| AMArcosa Marine Components, LLC (plant - 1080 Dba Wintech) | Bossier City | LA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| AMArdagh Metal Packaging USA CORP | Whitehouse | OH | Fabricated Metal Product Manufacturing332431 | — | ◐ LIKELY ACTIVE |
| AMArdagh Metal Packaging USA CORP. (0372030005) | Fremont | OH | Fabricated Metal Product Manufacturing332431 | — | ◐ LIKELY ACTIVE |
Argonaut Inflatable Research and Engineering, INC. | Meridian | ID | Plastics and Rubber Products Manufacturing326299 | — | ◐ LIKELY ACTIVE |
| AMArmor Metal Group | Mason | OH | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| APArmstrong Pumps | North Tonawanda | NY | Fabricated Metal Product Manufacturing332912 | 100-499 | ◐ LIKELY ACTIVE |
| ATArray Technologies INC | Albuquerque | NM | Fabricated Metal Product Manufacturing332510 | 100-499 | ◐ LIKELY ACTIVE |
| AMArtex Manufacturing | Redwood Falls | MN | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| AIArt Iron Works INC | Oneonta | AL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| AVAsco Valve Manufacturing | Aiken | SC | Fabricated Metal Product Manufacturing332911 | — | ◐ LIKELY ACTIVE |
| ABAshworth Bros., INC. | Winchester | VA | Fabricated Metal Product Manufacturing332618 | 100-499 | ◐ LIKELY ACTIVE |
| AMAssurance Manufacturing INC | Coon Rapids | MN | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| AAAstro Aluminum Treating CO. INC. | South Gate | CA | Fabricated Metal Product Manufacturing332811 | 100-499 | ◐ LIKELY ACTIVE |