Manufacturing of current-carrying wiring devices
11,945 FACILITIESCensus 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 |
|---|---|---|---|---|
| Machine Services Group | Carrollton | GA | 20–99 | LIKELY ACTIVE |
| Machine Shop | De Pere | WI | 20–99 | LIKELY ACTIVE |
| Machining Concepts Inc. | Erie | PA | 20–99 | LIKELY ACTIVE |
| Machining Concepts LLC | Germantown | WI | 20–99 | LIKELY ACTIVE |
| Mackentepe Machine & Tool, INC. | Vinemont | AL | — | LIKELY ACTIVE |
| Madison Electrolyte Blending Facility | Madison | WI | 1–19 | LIKELY ACTIVE |
| Mag7 Machining, LLC | Lynnville | TN | — | LIKELY ACTIVE |
| Mag Gunsmithing LLC | Somerset | PA | — | LIKELY ACTIVE |
| Magic Circle | Coffeyville | KS | 20–99 | LIKELY ACTIVE |
| Magic Machine CO LLC | Albuquerque | NM | — | LIKELY ACTIVE |
| Magna Electronics, LLC | Goleta | CA | 20–99 | LIKELY ACTIVE |
| Mahs Services Group, INC. | Royal Palm Beach | FL | — | LIKELY ACTIVE |
| Mahuta Tool Corp | Germantown | WI | 20–99 | LIKELY ACTIVE |
| Main | Romeoville | IL | 20–99 | LIKELY ACTIVE |
| Main | Canton | MI | 20–99 | LIKELY ACTIVE |
| Maine Machine Products Company | South Paris | ME | — | LIKELY ACTIVE |
| Main Facility | Wichita | KS | 100–499 | LIKELY ACTIVE |
| Main Plant | Clifton Springs | NY | 500+ | LIKELY ACTIVE |
| Main Shop | Huntington | WV | 20–99 | LIKELY ACTIVE |
| Main Shop | Diana | TX | 20–99 | LIKELY ACTIVE |
| Maintenance Service & Sales Corporation | Bordentown | NJ | — | LIKELY ACTIVE |
| Mamco Machining, INC. | Maryville | IL | — | LIKELY ACTIVE |
| Managed Technical Solutions Group, LLC | Portland | OR | — | LIKELY ACTIVE |
| Mancor Indiana | Anderson | IN | 20–99 | LIKELY ACTIVE |
| Mann CO Machine Works LLC | Lancaster | CA | — | REPORTED CLOSED |
FactoryRegistry lists 11,945 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.
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.
