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Manufacturing of sheet metal air-conditioning ducts (including dust collection ducts), stove pipe, furnace smoke pipe, and elbows

10,034 FACILITIES
FacilityCityStateEmployeesStatus
Kennametal INC.RogersAR— ACTIVE
Kennedy INCNorth KingstownRI— ACTIVE
Kinney Manufacturing LLCLincolnNE100–499 ACTIVE
Klune Industries INCNorth HollywoodCA100–499 ACTIVE
Knoxville Sheet Metal Works, INCKnoxvilleTN20–99 ACTIVE
Kochek Company, LLCPutnamCT20–99 ACTIVE
Komline-sanderson Group, INC.PeapackNJ100–499 ACTIVE
Ksm Industries INCGermantownWI20–99 ACTIVE
Laclede Chain Manufacturing Company, LLCFentonMO1–19 ACTIVE
Lancaster Metals Science CORPLancasterPA20–99 ACTIVE
Landscape Structures INCDelanoMN500+ ACTIVE
Latitude CORP.VeronaWI100–499 ACTIVE
Lebus International, INC.LongviewTX20–99 ACTIVE
Lewco INCSanduskyOH500+ ACTIVE
Little Falls Machine INCLittle FallsMN20–99 ACTIVE
Lockheed Martin Aeroparts, INC.JohnstownPA500+ ACTIVE
Lowell Manufacturing CompanyPacificMO20–99 ACTIVE
Machinists, INC.SeattleWA100–499 ACTIVE
Marathon Cutting Die INCWheelingIL20–99 ACTIVE
Marco Group, INC.NeoshoMO20–99 ACTIVE
Marine Travelift INCSturgeon BayWI100–499 ACTIVE
Martin International Enclosures, LLCSeabrookNH— ACTIVE
Mbs Fabrication, INC.SouthbridgeMA20–99 ACTIVE
M-d Building Products, INC.Oklahoma CityOK500+ ACTIVE
Mech Tronics CORPMelrose ParkIL20–99 ACTIVE

FactoryRegistry lists 10,034 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.

Related lines
Manufacturing of other heating system products, including wall and baseboard heating units, boilers, expansion tanks, mechanical stokers, nonelectric prefabricated metal fireplaces, electric swimming pool heaters, direct-fired water heater tanks, oil andManufacturing of domestic heating stoves (excluding portable), hearth appliances, and freestanding wood fireplaces (excluding electric and parts)Manufacturing of solar energy collectors (water or air)
Industries
Metal FabricatorsAll product lines

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.