# NAICS 335312: Motor and Generator Manufacturing

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [335312 Motor and Generator Manufacturing](https://bidrover.com/naics/335312)

This U.S. industry comprises establishments primarily engaged in manufacturing electric motors (except internal combustion engine starting motors), power generators (except battery charging alternators for internal combustion engines), and motor generator sets (except turbine generator set units). This industry includes establishments rewinding armatures on a factory basis.

- NAICS code: 335312
- Title: Motor and Generator Manufacturing
- Sector: 31-33 Manufacturing
- Subsector: 335 Electrical Equipment, Appliance, and Component Manufacturing
- Industry group: 3353 Electrical Equipment Manufacturing
- NAICS industry: 33531 Electrical Equipment Manufacturing
- SBA size standard: 1,250 employees
- Open bids on BidRover: 3
- Updated: Oct 13, 2026

## Open bids (3)

- [61--PLUG ASSEMBLY,AUXILIAR](https://bidrover.com/bids/61-plug-assembly-auxiliar--24dc6444-6010-46e1-92ec-4b8cd0725b04) — General procurement · United States · due 2026-10-27
- [61--GENERATOR,ALTERNATING](https://bidrover.com/bids/61-generator-alternating--0be0ccb8-237a-4541-9867-d5a907ea212c) — General procurement · United States · due 2026-10-23
- [POWER DISTRIBUTION](https://bidrover.com/bids/power-distribution--87b91e0e-4488-4a1c-866c-b8db0581d8e4) — Utilities & telecommunications · United States · due 2026-11-06

## Frequently asked questions

### What is NAICS code 335312?

NAICS 335312 is "Motor and Generator Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). This U.S. industry comprises establishments primarily engaged in manufacturing electric motors (except internal combustion engine starting motors), power generators (except battery charging alternators for internal combustion engines), and motor generator sets (except turbine generator set units). This industry includes establishments rewinding armatures on a factory basis.

### What is the SBA size standard for NAICS 335312?

A business is small under NAICS 335312 at or below 1,250 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 335312?

BidRover counts 3 open bids that cite NAICS 335312 as of Oct 13, 2026, refreshed every hour from official public sources. Many state and local notices do not list a NAICS code, so search by keyword too.

### How do I get alerts for NAICS 335312 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [333618 Other Engine Equipment Manufacturing](https://bidrover.com/naics/333618)
- [333611 Turbine and Turbine Generator Set Units Manufacturing](https://bidrover.com/naics/333611)
- [336320 Motor Vehicle Electrical and Electronic Equipment Manufacturing](https://bidrover.com/naics/336320)
- [811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance](https://bidrover.com/naics/811310)
- [333992 Welding and Soldering Equipment Manufacturing](https://bidrover.com/naics/333992)
- [335311 Power, Distribution, and Specialty Transformer Manufacturing](https://bidrover.com/naics/335311)
- [335313 Switchgear and Switchboard Apparatus Manufacturing](https://bidrover.com/naics/335313)
- [335314 Relay and Industrial Control Manufacturing](https://bidrover.com/naics/335314)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.