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Manufacturing of current-carrying wiring devices, lampholders, power outlets, precious metal, attachments, plug caps, connector bodies, lightning arrestors, and other miscellaneous current-carrying wiring devices

11,845 FACILITIES
FacilityCityStateEmployeesStatus
Martin Machine & Welding INCHalsteadKS— ACTIVE
Marton Precision Manufacturing, LLCFullertonCA20–99 ACTIVE
Marx Digital Mfg. INC.Santa ClaraCA— ACTIVE
Masterbilt INCSouth BendIN— ACTIVE
Master Machining, INCCastle HayneNC— ACTIVE
Master Precision MachiningSanta ClaraCA— ACTIVE
Master Research & Manufacturing, INC.NorwalkCA— ACTIVE
Masters Machine CompanyBristolME20–99 ACTIVE
Material Alteration Company, LLCHoustonTX— ACTIVE
Mathews Associates INCSanfordFL— ACTIVE
Maury Microwave, INC.OntarioCA— ACTIVE
Maynard INCFayettevilleAR— ACTIVE
May Tool and Mold Co., INC.Kansas CityMO— ACTIVE
M & B Machine, INC.CarlislePA20–99 ACTIVE
Mckenzie Machining INCSan JoseCA— ACTIVE
Mcmellon Bros., IncorporatedStratfordCT20–99 ACTIVE
Mcnally Industries, LLCGrantsburgWI— ACTIVE
Mcneil Industries INCPainesvilleOH20–99 ACTIVE
Mdc Precision LLCHaywardCA— ACTIVE
Mechanical Analysis/repair, INC.LodiCA— ACTIVE
Mechanical Development Company, IncorporatedSalemVA20–99 ACTIVE
Mechanical Devices COBloomingtonIL100–499 ACTIVE
Mega Precision LLCNewingtonCT— ACTIVE
Megatech Manufacturing LLCWestminsterCA— ACTIVE
Memcor INCHuntingtonIN— ACTIVE
Menze Precision Machining, LLCWinter HavenFL— ACTIVE
Mercury Machine Works LLCSpringTX— ACTIVE
Merit Cables IncorporatedSanta AnaCA— ACTIVE
Merit Gage INCMinneapolisMN— ACTIVE
Merrimac Industries, INCWest CaldwellNJ100–499 ACTIVE
Mesa Custom Machining CORPGilbertAZ— ACTIVE
Metal Essence, INC.LongwoodFL— ACTIVE
Metalex Manufacturing INCCincinnatiOH100–499 ACTIVE
Metalform Industries, INC.WichitaKS— ACTIVE
Metal Forming & Coining LLCMaumeeOH— ACTIVE
Metalid Manufacturing INCPacoimaCA— ACTIVE
Metalmite CORPRochesterMI— ACTIVE
Metal Processing Co., INC.TyngsboroMA— ACTIVE
Metalquest Unlimited, INCHebronNE— ACTIVE
Metal Tech INCGulfportMS— ACTIVE
Metamagnetics INCMarlboroughMA20–99 ACTIVE
Meta Manufacturing CORPBlue AshOH— ACTIVE
Metamora Industries, LLCMetamoraIL20–99 ACTIVE
Metplas INCNatrona HeightsPA20–99 ACTIVE
Metro Assemblies INCMinneapolisMN— ACTIVE
Metro Machine, INC.EnglewoodCO20–99 ACTIVE
Metron Machining LLCLakewoodCO— ACTIVE
Mfc Netform LLCShelby TownshipMI— ACTIVE
M & H Machining, INCGeorgetownTX— ACTIVE
Mica-tron Products CORPHolbrookMA— ACTIVE

FactoryRegistry lists 11,845 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 current-carrying wiring devices, lampholders, power outlets, precious metal, attachments, plug caps, connector bodies, lightning arrestors, and other miscellaneous current-carrying wiring devices, 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 3 establishments reported producing it; the count for 2 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.

Part of Manufacturing of air filters for air conditioners and furnaces, etc., of 2400 CFM or less, excluding parts
Manufacturing of fiber optic cable, for all other applicationsManufacturing of fiber optic cable, for communications applicationsManufacturing of heat transfer coil sales by original equipment manufacturers intended for resale or assembly into equipment by other manufacturers (all types)Manufacturing of aluminum and aluminum-base alloy wire and cable (excluding covered or insulated), including ACSRManufacturing of current-carrying wire connectors for electrical circuitryManufacturing of iron and steel warm air and air-conditioning grills, registers, and air diffusersManufacturing of other noncurrent-carrying wiring device supplies, including electrical junction boxes, switch and outlet wall plates, floor boxes, and coversManufacturing of building wire and cable, made of nonferrous metals, 601 volts or less, used within structures for light and power for permanent installationManufacturing of commercial and industrial central vacuum cleaner systems (including parts and attachments)Manufacturing of flexible metal HVAC hose and tubing (including steel, stainless steel, aluminum, copper, alloys and other metals)Manufacturing of heat transfer central system finned coils (air-conditioning and refrigeration-type)Manufacturing of household vacuum cleaners, complete power units, central-system-typeManufacturing of other flexible HVAC hose and tubing, including rubber, plastics, nylon, and other materials (excluding metal)Manufacturing of parts for dust collection and air purification equipmentManufacturing of power wire and cable, made from nonferrous metals for electric transmission and distributionManufacturing of residential electric lighting fixtures (excluding portable), including parts and accessoriesManufacturing of telecom (low-voltage premise) wire and cable, made of nonferrous metalsManufacturing of water softeners and commercial water heaters, including parts
Industries
Metal FabricatorsElectronics ManufacturersElectrical Equipment ManufacturersAll product lines

NAPCS collection code 2039300000. 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.