Manufacturing of sheet metal air-conditioning ducts
10,317 FACILITIESCensus designationManufacturing of sheet metal air-conditioning ducts (including dust collection ducts), stove pipe, furnace smoke pipe, and elbows
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Magnum Steel Works, Inc | Mount Vernon | IL | — | UNVERIFIED |
| Mainline LLC | Shelby Gap | KY | — | UNVERIFIED |
| Main St. Machine & Repair LLC | Saint Paul | OR | — | UNVERIFIED |
| Majestic Tempe Office | Tempe | AZ | — | UNVERIFIED |
| MajX CNC | Tempe | AZ | — | UNVERIFIED |
| Mallasch Fence Supply Steven | Pacoima | CA | — | UNVERIFIED |
| Mallin Industries, LLC | Fairfield | AL | — | UNVERIFIED |
| Malm Fireplaces INC | Santa Rosa | CA | — | UNVERIFIED |
| Malo | Tulsa | OK | — | UNVERIFIED |
| Managed Air Systems | Plantsville | CT | — | UNVERIFIED |
| Mangels Sheet Metal, INC | Alexandria | LA | — | UNVERIFIED |
| Manheim Specialty Machine, Incorporated | Manheim | PA | — | UNVERIFIED |
| Manitou Manufacturing Company | White Bear Lake | MN | — | UNVERIFIED |
| Mansell and Associates, LLC | Tuscumbia | AL | — | UNVERIFIED |
| Mantis Metalcraft LLC | Columbus | OH | — | UNVERIFIED |
| Mape Engineering INC. | Colton | CA | — | UNVERIFIED |
| Mapleton Properties LLC | Spanish Fork | UT | — | UNVERIFIED |
| Map LLC | Franklin | IN | — | UNVERIFIED |
| Marano Ironworks, INC. | Norristown | PA | — | UNVERIFIED |
| Marathon Equipment Company | Yerington | NV | — | UNVERIFIED |
| Marcres Manufacturing, INC. Dba Macres Metal Works | Mount Prospect | IL | — | UNVERIFIED |
| Marelco, INC. and Its Successors and Assigns | Beltsville | MD | — | UNVERIFIED |
| Marelich Mechanical Co, INC | Hayward | CA | — | UNVERIFIED |
| Marietta Magnetics LLC | Marietta | OH | — | UNVERIFIED |
| Marina Security Gate, INC. | Gardena | CA | — | UNVERIFIED |
| Marino/ware | Pasadena | TX | — | UNVERIFIED |
| Marking Specialists/Polymer Technologies | Buffalo Grove | IL | — | UNVERIFIED |
| Markins Enterprise, LLC | Apache Junction | AZ | — | UNVERIFIED |
| Mark Peiser Manufacturing, Inc. | Tavares | FL | — | UNVERIFIED |
| Marksman Metal Company INC | Saint Michael | MN | — | UNVERIFIED |
| Marlatt Fabricators INC. | Sandia | TX | — | UNVERIFIED |
| Maro International Corporation | Tulsa | OK | — | UNVERIFIED |
| Marrick, LLC | Chesapeake | VA | — | UNVERIFIED |
| Marstan INC | Coon Rapids | MN | — | UNVERIFIED |
| Mar-tech Precision, LLC | Hackettstown | NJ | — | UNVERIFIED |
| Martell Design and Fabrication LLC | Saco | ME | — | UNVERIFIED |
| Marti, Inc. | Bemidji | MN | — | UNVERIFIED |
| Martin Metal Fabricators INC | Salem | OR | — | UNVERIFIED |
| Martin Metalwork LLC | Berea | KY | — | UNVERIFIED |
| Martin Sheet Metal, INC. | Amarillo | TX | — | UNVERIFIED |
| Marvel Holdings LLC | Orchard | TX | — | UNVERIFIED |
| Maryland Metals Processing, INC. | Sparrows Point | MD | — | UNVERIFIED |
| Maryland Structural Fabricators INC | Millington | MD | — | UNVERIFIED |
| Mascoat LLC | West Monroe | LA | — | UNVERIFIED |
| Mascotte Home Security Products INC | Portland | OR | — | UNVERIFIED |
| Mason Corporation | Jemison | AL | — | UNVERIFIED |
| Mason Machine and Fab, LLC | Lafayette | LA | — | UNVERIFIED |
| Masport Incorporated | Lincoln | NE | — | UNVERIFIED |
| Masses LLC | Las Vegas | NV | — | UNVERIFIED |
| Massey Metals INC. | Tampa | FL | — | UNVERIFIED |
FactoryRegistry lists 10,317 facilities whose primary industry classification is one of the 3 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced sheet metal air-conditioning ducts (including dust collection ducts), stove pipe, furnace smoke pipe, and elbows, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.
The U.S. Census Bureau recorded this product line in 3 US manufacturing industries in the 2022 Economic Census, as the most specific line those industries reported. At least 667 establishments reported producing it; the count for 1 of those industries was withheld.
These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.
NAPCS collection code 2038675000. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.