# NAICS 335311: Power, Distribution, and Specialty Transformer Manufacturing

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [335311 Power, Distribution, and Specialty Transformer Manufacturing](https://bidrover.com/naics/335311)

This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current.

- NAICS code: 335311
- Title: Power, Distribution, and Specialty Transformer 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: 800 employees
- Open bids on BidRover: 2
- Updated: Oct 13, 2026

## Open bids (2)

- [61--SWITCHING UNIT,POWER T](https://bidrover.com/bids/61-switching-unit-power-t--72c81a20-2955-42ea-be27-c59b4ce556fe) — General procurement · United States · due 2026-10-23
- [61--DISTRIBUTING SYSTEM, IN REPAIR/MODIFICATION OF](https://bidrover.com/bids/61-distributing-system-in-repair-modification-of--0f237566-a2b0-4c96-b065-296ac85cc993) — General procurement · United States · due 2026-11-09

## Frequently asked questions

### What is NAICS code 335311?

NAICS 335311 is "Power, Distribution, and Specialty Transformer Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current.

### What is the SBA size standard for NAICS 335311?

A business is small under NAICS 335311 at or below 800 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 335311?

BidRover counts 2 open bids that cite NAICS 335311 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 335311 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

- [334416 Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing](https://bidrover.com/naics/334416)
- [335312 Motor and Generator Manufacturing](https://bidrover.com/naics/335312)
- [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.