NAICS 335999:
All Other Miscellaneous Electrical Equipment and Component Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing industrial and commercial electric apparatus and other equipment (except lighting equipment, household appliances, transformers, motors, generators, switchgear, relays, industrial controls, batteries, communication and energy wire and cable, wiring devices, and carbon and graphite products). Examples of products made by these establishments are power converters (i.e., AC to DC and DC to AC), power supplies, surge suppressors, and similar equipment for industrial-type and consumer-type equipment.

Appliance cords made from purchased insulated wireBattery chargers, solid-state, manufacturingDoor opening and closing devices, electrical, manufacturing+5 examples

Electric bells manufacturingExtension cords made from purchased insulated wireInverters manufacturingSurge suppressers manufacturingUninterruptible power supplies (UPS) manufacturing

Matching SIC code: 3629 Electrical Industrial Apparatus, Not Elsewhere Classified (also 3699 Electrical Machinery, Equipment, and Supplies, Not Elsewhere)

Where it sits

31-33ManufacturingSector
335Electrical Equipment, Appliance, and Component ManufacturingSubsector
3359Other Electrical Equipment and Component ManufacturingIndustry group
33599All Other Electrical Equipment and Component ManufacturingNAICS industry
335999All Other Miscellaneous Electrical Equipment and Component ManufacturingNational industry

Largest companies with NAICS 335999

Updated Nov 9, 2026

Rank	Company	Headquarters	Employees
1	Vertivvertiv.com	Westerville, US	20K
2	Hubbell Incorporatedhubbell.com	Shelton, US	7.3K
3	Littelfuselittelfuse.com	Des Plaines, US	5.1K
4	Advanced Energyadvancedenergy.com	Denver, US	5K
5	nVentnvent.com	US	4.4K
6	Electrical Components Internationalecintl.com	Southfield, US	2.5K
7	Bloom Energybloomenergy.com	San Jose, US	2.4K
8	Plug Powerplugpower.com	Latham, US	2K
9	Anker Innovationsankersolix.com	Bellevue, US	2K
10	Enagicenagic.com	US	1.8K

Not this code?

Similar activities the Census classifies elsewhere.

33513Electric Lighting Equipment ManufacturingManufacturing lighting equipment
3352Household Appliance ManufacturingManufacturing household-type appliances
33531Electrical Equipment ManufacturingManufacturing transformers, motors, generators, switchgear, relays, and industrial controls
33592Communication and Energy Wire and Cable ManufacturingManufacturing communication and energy wire and cable from purchased wire or fiber optic strand

Questions about NAICS 335999

Which businesses use NAICS 335999?

Appliance cords made from purchased insulated wire, electric bells manufacturing and extension cords made from purchased insulated wire, and similar businesses in the Manufacturing sector. This U.S.

What SIC code matches NAICS 335999?

SIC 3629, Electrical Industrial Apparatus, Not Elsewhere Classified; SIC 3699, Electrical Machinery, Equipment, and Supplies, Not Elsewhere, from the US Census Bureau's concordance between the two systems.

How many companies have NAICS 335999?

5,255 companies with a website carry NAICS 335999 as their primary code in Crustdata's data, worldwide.

Find any company's NAICS codeType a company name or website and get its codes with their titles.

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Code titles, definitions, examples and SIC matches: NAICS 2022 and the Census concordances, US Census Bureau. Company counts and lists: Crustdata, companies with a website, each by its primary code, updated weekly. Employee counts are estimates.