| ASAguayo's Sheet Metal Mfg, INC | Bayamon | PR | — | ◇ UNVERIFIED |
| AFAhc Fabrication CO. | Beggs | OK | — | ◇ UNVERIFIED |
| AFAhlborn Fence & Steel INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| ACAIMetals, Corp | Dallas | TX | — | ◇ UNVERIFIED |
| ASAim Steel International, INC. | Morrow | GA | — | ◇ UNVERIFIED |
| ACAir Capital Flight Line Hangar | Wichita | KS | — | ◇ UNVERIFIED |
| ACAir Central INC | Honolulu | HI | — | ◇ UNVERIFIED |
| AIAirconcepts, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| ACAir Conditioning Products CO | Romulus | MI | — | ◇ UNVERIFIED |
| ACAir Conveying Corporation | Memphis | TN | — | ◇ UNVERIFIED |
| AEAircraft Extrusion CO | Chico | CA | — | ◇ UNVERIFIED |
 Aircraft Welding, INC. | Willoughby | OH | — | ◇ UNVERIFIED |
| ADAir Distribution Corporation | Canton | MA | — | ◇ UNVERIFIED |
| ADAir Distribution Systems, INC. | Cherry Hill | NJ | — | ◇ UNVERIFIED |
| ADAir Duct, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| AFAir Flow Products, INC. | Hueytown | AL | — | ◇ UNVERIFIED |
| AMAir Masters, INC. | Honolulu | HI | — | ◇ UNVERIFIED |
| AMAir Movement, INC | Theodore | AL | — | ◇ UNVERIFIED |
| APAir Performance INC. | Hartford | AL | — | ◇ UNVERIFIED |
| APAir Purchases of New Hampshire, INC. | Eliot | ME | — | ◇ UNVERIFIED |
| ASAir Solutions Heating and Cooling, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| ASAir Systems Sheet Metal Company, INC | Clarksburg | WV | — | ◇ UNVERIFIED |
| ASAir Systems Sheet Metal Company, INC | Hurricane | WV | — | ◇ UNVERIFIED |
| AIAir-Tech Industrial Design, Inc. | Monrovia | IN | — | ◇ UNVERIFIED |
| ATAir Tight Stainless Manufacturing & Seal Service | Lubbock | TX | — | ◇ UNVERIFIED |
| ATAir Transport Mfg CO | Glendale | CA | — | ◇ UNVERIFIED |
| AIA & I Steel Fabricators, INC. | Pomona | CA | — | ◇ UNVERIFIED |
| AJA & J Fabricators, INC. | Minco | OK | — | ◇ UNVERIFIED |
| AJAj & J Engineering & Precision Machine | Livermore | CA | — | ◇ UNVERIFIED |
| AJA J Oster Caribe LLC | Caguas | PR | — | ◇ UNVERIFIED |
| AIAJS Investment Group, LLC | San Jose | CA | — | ◇ UNVERIFIED |
| AJA & J Welding | Pomona | CA | — | ◇ UNVERIFIED |
| AKA & K Development CO | Eugene | OR | — | ◇ UNVERIFIED |
| AKA & K Metal Fabrication, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| ALAkm LLC Dba Volks Constructors | Prairieville | LA | — | ◇ UNVERIFIED |
| ARA-korn Roller INC (relocated to 0311145) | Denver | CO | — | ◇ UNVERIFIED |
| ASAk Steel and Tubing | Franklin | IN | — | ◇ UNVERIFIED |
| AMAlabama Metal Fabricators, INC. | Elberta | AL | — | ◇ UNVERIFIED |
| AMAlabama Metal Industries Corporation | Dayton | TX | — | ◇ UNVERIFIED |
| ALAlaco Ladder CO | Chino | CA | — | ◇ UNVERIFIED |
| AMAlaka'i Mechanical | Kaneohe | HI | — | ◇ UNVERIFIED |
| ASAlamance Steel Fabricators, INC. | Archdale | NC | — | ◇ UNVERIFIED |
| ASAlaska Structures INC | Fairacres | NM | — | ◇ UNVERIFIED |
| APAlbany Pipe & Nipple Manufacturing, INC. | Green Island | NY | — | ◇ UNVERIFIED |
| APAlbar Precious Metal Refining, INC. | Pompano Beach | FL | — | ◇ UNVERIFIED |
| AFAlbatross Fabrication LLC | Spirit Lake | ID | — | ◇ UNVERIFIED |
| ACAl Cassettari Enterprises, INC. | Banta | CA | — | ◇ UNVERIFIED |
| AMAl-cast Mold - Pattern INC | Andover | MN | — | ◇ UNVERIFIED |
| ATAlcoa Titanium & Engineered Products | Niles | OH | — | ◇ UNVERIFIED |
| AFAlco Fabricators, INC. | Rossville | GA | — | ◇ UNVERIFIED |
