| ASAcoustical Sheetmetal INC. | Virginia Beach | VA | — | ◇ UNVERIFIED |
| ASAcoustic Solutions INC. | Virginia Beach | VA | — | ◇ UNVERIFIED |
| AEActron Entities | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| ACAdvance Concrete Form, Inc.. | Madison | WI | — | ◇ UNVERIFIED |
| ACAdvanced Coil Industries, Inc. | Washington | PA | — | ◇ UNVERIFIED |
| ADAdvanced Design Mfg | Banning | CA | — | ◇ UNVERIFIED |
| ADAdvanced Door Technologies, INC. | East Stroudsburg | PA | — | ◇ UNVERIFIED |
| AMAdvanced Metal Works, INC | Fresno | CA | — | ◇ UNVERIFIED |
| AMAdvanced Mfg & Development INC Dba Metal Fx | Willits | CA | — | ◇ UNVERIFIED |
| APAdvanced Precision Mfg. INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| ASAdvanced Seismic Hardware LLC | Portland | OR | — | ◇ UNVERIFIED |
| ASAdvanced Sheet Metal, LLC | New Orleans | LA | — | ◇ UNVERIFIED |
| AHAdvance Heat Transfer Solutions | Flowery Branch | GA | — | ◇ UNVERIFIED |
| AEA & E Metal Roofing Supply Central, LLC | Kellyton | AL | — | ◇ UNVERIFIED |
| AIAeridyne, INC. | Denver | CO | — | ◇ UNVERIFIED |
| APAero Parts Manufacturing & Repair INC | Rio Rancho | NM | — | ◇ UNVERIFIED |
| AIAes Industries, INC. | Reno | NV | — | ◇ UNVERIFIED |
| AFAfc Finishing Systems | Oroville | CA | — | ◇ UNVERIFIED |
| AMAffordable Metal INC. | Hialeah | FL | — | ◇ UNVERIFIED |
| ABAg Body INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| AMA.g. Miller Company, INC. | Springfield | MA | — | ◇ UNVERIFIED |
| ASAguayo's Sheet Metal Mfg, INC | Bayamon | PR | — | ◇ 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 |
| ADAir Distribution Corporation | Canton | MA | — | ◇ UNVERIFIED |
| ADAir Distribution Systems, INC. | Cherry Hill | NJ | — | ◇ 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 | Hurricane | WV | — | ◇ UNVERIFIED |
| ASAir Systems Sheet Metal Company, INC | Clarksburg | WV | — | ◇ UNVERIFIED |
| ATAir Transport Mfg CO | Glendale | CA | — | ◇ UNVERIFIED |
| AIAJS Investment Group, LLC | San Jose | CA | — | ◇ UNVERIFIED |
| AKA & K Development CO | Eugene | OR | — | ◇ UNVERIFIED |
| AKA & K Metal Fabrication, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| AMAlaka'i Mechanical | Kaneohe | HI | — | ◇ UNVERIFIED |
 A.l. Garey & Associates, INC. | Pompano Beach | FL | — | ◇ UNVERIFIED |
| AMAlias Manufacturing LLC | Boise | ID | — | ◇ UNVERIFIED |
| AAAll About Gutter & Sheet Metal INC | Portland | OR | — | ◇ UNVERIFIED |
| ASAllair Sheet Metal, CORP. | Brooklyn | NY | — | ◇ UNVERIFIED |
| AAAll American Finishing LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| ASAllan Schaffer | Livermore | CA | — | ◇ UNVERIFIED |
| ACAll County Sheet Metal | Lake Worth Beach | FL | — | ◇ UNVERIFIED |
| ACAll Custom Aluminum | Cocoa | FL | — | ◇ UNVERIFIED |
| AFAll Fab Precision Sheetmetal | Santa Clara | CA | — | ◇ UNVERIFIED |
