| 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 | Clarksburg | WV | — | ◇ UNVERIFIED |
| ASAir Systems Sheet Metal Company, INC | Hurricane | WV | — | ◇ UNVERIFIED |
| ATAir Transport Mfg CO | Glendale | CA | — | ◇ UNVERIFIED |
| ACAJ's Custom Canvas LLC | Saint Petersburg | FL | — | ◇ 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 |
| ACAllegro Creative a Division of Conair CORP | El Segundo | CA | — | ◇ UNVERIFIED |
| AFAll Fab Precision Sheetmetal | Santa Clara | CA | — | ◇ UNVERIFIED |
| ARAllison Resources LLC | Hurst | TX | — | ◇ UNVERIFIED |
| AMAll Metal Fabricators | Chantilly | VA | — | ◇ UNVERIFIED |
| ASAlloyd Sheet Metal & Insulation CO. INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| ASAll-rite Sheet Metal, INC. | Houston | TX | — | ◇ UNVERIFIED |
| ASAll Service Machine Shop, INC. | Chalmette | LA | — | ◇ UNVERIFIED |
| ASAll Sheet Metal Company | Oklahoma City | OK | — | ◇ UNVERIFIED |
| ASAllstate Sheet Metal, INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| AGAllsteel & Gypsum Products, INC. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| AAll-storage | Fridley | MN | — | ◇ UNVERIFIED |
| ASAloma Shim and Manufacturing | Verona | PA | — | ◇ UNVERIFIED |
| AMAlpha Metal Panels, LLC | Valdosta | GA | — | ◇ UNVERIFIED |
| ALA & L Sheet Metal Fabrications CORP. | Bronx | NY | — | ◇ UNVERIFIED |
| AIAlutek INC | Spokane Valley | WA | — | ◇ UNVERIFIED |
| AMAmark Metals, INC. | Haughton | LA | — | ◇ UNVERIFIED |
| ASAmericana Suppliers | Tamuning | GU | — | ◇ UNVERIFIED |
| ABAmerican Builders & Contractors Supply Co., INC | Houston | TX | — | ◇ UNVERIFIED |
| ABAmerican Builders & Contractors Supply Co., INC. | Beloit | WI | — | ◇ UNVERIFIED |
| ACAmerican Chimney Caps INC | Salem | OR | — | ◇ UNVERIFIED |
| ACAmerican Construction Metals(acm)#581 | Apollo Beach | FL | — | ◇ UNVERIFIED |
| ACAmerican Construction Metals (stormwater) | Shawnee | KS | — | ◇ UNVERIFIED |
| AGAmerican Gutter Service Incorporated | Portland | OR | — | ◇ UNVERIFIED |
| AKAmerican Keder, INC. | Rindge | NH | — | ◇ UNVERIFIED |
| AMAmerican Metal Fabricators INC | Brooklyn | NY | — | ◇ UNVERIFIED |
| AMAmerican Metal Fabricators, INC. | Gastonia | NC | — | ◇ UNVERIFIED |
| AMAmerican Metal Products, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| APAmerican Plant and Equipment | Roebuck | SC | — | ◇ UNVERIFIED |
| ARAmerican Roofing CO Proj | North Salt Lake | UT | — | ◇ UNVERIFIED |
| ARAmerican Roofing Products, LLC | Bluefield | WV | — | ◇ UNVERIFIED |
| ASAmerican Sheet Metal | Anaheim | CA | — | ◇ UNVERIFIED |
| ASAmerican Sheet Metal | Houston | TX | — | ◇ UNVERIFIED |
| ASAmerican Sheet Metal and Welding | Norfolk | VA | — | ◇ UNVERIFIED |
| ASAmerican Stairways & Railings LLC | Reading | OH | — | ◇ UNVERIFIED |
| ABAmerimax Building Products | Nappanee | IN | — | ◇ UNVERIFIED |
| ABAmerimax Building Products | Romoland | CA | — | ◇ UNVERIFIED |
| AHAmerimax Home Products | Sacramento | CA | — | ◇ UNVERIFIED |
| AMAmeritex Machine and Fab LLC | Willis | TX | — | ◇ UNVERIFIED |
| APAmerson Precision Sheet Metal INC | Mcminnville | OR | — | ◇ UNVERIFIED |
| AAAmf Anaheim LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| ALAmpack, Limited Liability Company | Lumberton | NC | — | ◇ UNVERIFIED |
| ALAms Lv, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| AIAndlex INC Dba Southland Fabrication | Fallbrook | CA | — | ◇ UNVERIFIED |
| ASAndrus Sheet Metal, INC. | Richmond | CA | — | ◇ UNVERIFIED |
| AIAnemostat Inc/scranton Plt | Scranton | PA | — | ◇ UNVERIFIED |
| APAnoroc Precision Sheet Metal | Rosewood | CA | — | ◇ UNVERIFIED |
| AMAntarctic Mechanical Services, INC. Dba Ams Mechanical Systems | Evanston | IL | — | ◇ UNVERIFIED |
| AIApex Industries INC | Spokane Valley | WA | — | ◇ UNVERIFIED |
| AOA.p.i. of N.h. | Manchester | NH | — | ◇ UNVERIFIED |
| ASAppleton Supply CO | Appleton | WI | — | ◇ UNVERIFIED |
| ALApplied Laser Technologies LLC | Schofield | WI | — | ◇ UNVERIFIED |
| ALApplied Laser Technologies LLC | Schofield | WI | — | ◇ UNVERIFIED |
| AMApplied Material Technologies INC Dba Fabcor Precision Sheet Metal Fab | Fountain Valley | CA | — | ◇ UNVERIFIED |
| AApw | Anaheim | CA | — | ◇ UNVERIFIED |
| APArchers Precision INC | Tigard | OR | — | ◇ UNVERIFIED |
| ASArchibald Sheet Metal, Inc. | Lakeside | CA | — | ◇ UNVERIFIED |
| ACArchitectural Construction Services INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| ADArchitectural Design Concepts | Springfield | MO | — | ◇ UNVERIFIED |
| AFArchitectural Fabrications INC | Auburn | WA | — | ◇ UNVERIFIED |
| AIArchitectural & Industrial Metal Fabrication | Roswell | GA | — | ◇ UNVERIFIED |
| AMArchitectural Metal Works INC | Turner | OR | — | ◇ UNVERIFIED |
| ASArchitectural Sheet Metal & Panels, INC. | Cheyenne | WY | — | ◇ UNVERIFIED |
| ASArchitectural Sheetmetal Products, INC. | Scotia | NY | — | ◇ UNVERIFIED |
| ASArchitectural Sheet Metal Systems, INC. | Bridgeton | MO | — | ◇ UNVERIFIED |
| AMArco Metals, INC | Baltimore | MD | — | ◇ UNVERIFIED |
| ASArjae Sheet Metal CO INC | Happy Valley | OR | — | ◇ UNVERIFIED |
| AMArmadillo Metalworks, INC. | Passaic | NJ | — | ◇ UNVERIFIED |
| AMArmi Manufacturing | Fayetteville | AR | — | ◇ UNVERIFIED |
| APArmorcast Prod. CO | North Hollywood | CA | — | ◇ UNVERIFIED |
| APArmorcast Products Company | North Hollywood | CA | — | ◇ UNVERIFIED |
| APArmstrong Power Systems, LLC | Miami | FL | — | ◇ UNVERIFIED |
| ACArning Companies INC | Cassville | MO | — | ◇ UNVERIFIED |
| AIArning Industries, INC. | Metairie | LA | — | ◇ UNVERIFIED |
| ACArrow Components CORP | Ramsey | MN | — | ◇ UNVERIFIED |
 Arrowhead Products INC | Hopkins | MN | — | ◇ UNVERIFIED |
| AHArrow Heating Company | Tualatin | OR | — | ◇ UNVERIFIED |
