Manufacturing of current-carrying wiring devices

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

Facility	City	State	Employees	Status
MPMain Plant	Clifton Springs	NY	500+	◐ LIKELY ACTIVE
MSMain Shop	Huntington	WV	20–99	◐ LIKELY ACTIVE
MSMain Shop	Diana	TX	20–99	◐ LIKELY ACTIVE
MSMaintenance Service & Sales Corporation	Bordentown	NJ	—	◐ LIKELY ACTIVE
MMMamco Machining, INC.	Maryville	IL	—	◐ LIKELY ACTIVE
MTManaged Technical Solutions Group, LLC	Portland	OR	—	◐ LIKELY ACTIVE
MIMancor Indiana	Anderson	IN	20–99	◐ LIKELY ACTIVE
MCMann CO Machine Works LLC	Lancaster	CA	—	◐ LIKELY ACTIVE
MMManth Mfg.	Tonawanda	NY	20–99	◐ LIKELY ACTIVE
MRManuel Recio	Aledo	TX	—	◐ LIKELY ACTIVE
MTManufacturing Technologies, INC.	Bernalillo	NM	—	◐ LIKELY ACTIVE
MMManzke Machine, INC	Escondido	CA	—	◐ LIKELY ACTIVE
MWMaple Wood Manufacturing Co., INC.	Fall River	MA	—	◐ LIKELY ACTIVE
MIMaranatha Industries INC	Payne	OH	—	◐ LIKELY ACTIVE
MTMarathon Technologies, INC	Estero	FL	—	◐ LIKELY ACTIVE
MTMar-con Tool Company	Dayton	OH	—	◐ LIKELY ACTIVE
MMMaring Machining & Engineering LLC	Lafayette	CO	—	◐ LIKELY ACTIVE
MMMarion Machine	Marion	NC	20–99	◐ LIKELY ACTIVE
MPMarion Precision Tool, INC.	Ocala	FL	—	◐ LIKELY ACTIVE
MIMark.us Industry INC	Wharton	NJ	—	◐ LIKELY ACTIVE
MMMar Machine INC	West Babylon	NY	—	◐ LIKELY ACTIVE
MMMarposa Manufacturing	Waltham	MA	—	◐ LIKELY ACTIVE
MMarrero	Marrero	LA	20–99	◐ LIKELY ACTIVE
Martin & Rush Machining Inc. DBA: Phoenix Precision Machining	Trinity	NC	20–99	◐ LIKELY ACTIVE
MAMaruwa America CORP.	Santa Ana	CA	—	◐ LIKELY ACTIVE
MIMaster International Corporation	Santa Monica	CA	—	◐ LIKELY ACTIVE
MIMaster International Corporation	Phoenix	AZ	—	◐ LIKELY ACTIVE
MAMasterpiece Arms Holding Company	Comer	GA	20–99	◐ LIKELY ACTIVE
MRMaster Roll Manufacturing	New Carlisle	IN	20–99	◐ LIKELY ACTIVE
MLMattertex LLC	Savoy	IL	—	◐ LIKELY ACTIVE
MSMatthew Scott Sammons	Park Falls	WI	—	◐ LIKELY ACTIVE
MPMattoon Precision Manufacturing, Inc.	Mattoon	IL	100–499	◐ LIKELY ACTIVE
MIMatzel Industries INC	Milwaukee	WI	—	◐ LIKELY ACTIVE
MMMaul Mfg., INC.	Santa Ana	CA	—	◐ LIKELY ACTIVE
MMaxcess-Fife	Oklahoma	OK	100–499	◐ LIKELY ACTIVE
MIMaximum Industries, INC.	Irving	TX	—	◐ LIKELY ACTIVE
MIMaximus Industries Corporation	Lafayette	IN	20–99	◐ LIKELY ACTIVE
MPMaxpol Precision Machining, INC.	Morgan Hill	CA	—	◐ LIKELY ACTIVE
MLMazontech LLC	Belen	NM	—	◐ LIKELY ACTIVE
MIMbmmfg, INC	Easthampton	MA	—	◐ LIKELY ACTIVE
MMMc1 Med - Medway	Medway	MA	100–499	◐ LIKELY ACTIVE
MMMcattack Machine LLC	Willoughby	OH	—	◐ LIKELY ACTIVE
MMMcd Machine INC	Bloomington	IN	—	◐ LIKELY ACTIVE
MMMckinney Machine LLC	Athens	TN	—	◐ LIKELY ACTIVE
MRMc & R Enterprises, INC	Santa Fe Springs	CA	—	◐ LIKELY ACTIVE
MMMDL Manufacturing Industries, Inc	Bedford	PA	1–19	◐ LIKELY ACTIVE
MLMechelen LLC	Covington	LA	—	◐ LIKELY ACTIVE
MAMedlin and Son	Whittier	CA	20–99	◐ LIKELY ACTIVE
MRMelancon Road	Broussard	LA	20–99	◐ LIKELY ACTIVE
MFMenomonee Falls Plant	Menomonee Falls	WI	1–19	◐ LIKELY ACTIVE

FactoryRegistry lists 11,956 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.