What is NAICS code 335311?

NAICS 335311 is the industry "Power, Distribution, and Specialty Transformer Manufacturing" in the North American Industry Classification System, part of the Manufacturing sector (33).

What is the size standard for NAICS 335311?

The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 335311 in the SBA table of size standards on sba.gov; it changes from time to time.

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

NAICS code 335311 is the industry for power, distribution, and specialty transformer manufacturing in the Manufacturing sector. Agencies tag every federal contract with a NAICS code, so this is the code to list in your SAM.gov registration and to search for bids.

Government contracts under NAICS 335311

Federal agencies obligated $942M on contracts under NAICS 335311 from FY2024 to FY2026, including $331M in FY2026. The biggest buyers were the Department of Defense, the Department of Transportation, the Department of Energy. The largest contractors were Tepco Energy Partner, Incorporated, The Chugoku Electric Power Company, Incorporated, Paf Electrical, Inc..

See the full breakdown: government power, distribution, and specialty transformer manufacturing contracts, who wins and who buys.

Open government bids for NAICS 335311

The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.

63--CONTROL UNIT,ALARM
Dept of Defense · Combined Synopsis/Solicitation · NAICS 335311 · Historically Underutilized Business (HUBZone) Set-Aside (FAR 19.13)
Posted Nov 1, 2026 · Responses due Nov 12, 2026
61--WIRING HARNESS SET,ELEClosing soon
Dept of Defense · Combined Synopsis/Solicitation · NAICS 335311
Posted Nov 1, 2026 · Responses due Nov 9, 2026
61--CABLE ASSEMBLY,POWER,EClosing soon
Dept of Defense · Combined Synopsis/Solicitation · NAICS 335311
Posted Nov 1, 2026 · Responses due Nov 9, 2026
61--CABLE ASSEMBLY,SPECIALClosing soon
Dept of Defense · Combined Synopsis/Solicitation · NAICS 335311 · Small Business Set Aside - Total
Posted Nov 1, 2026 · Responses due Nov 9, 2026
SPRRA227R0703Closing soon
Dept of Defense · Sources Sought · NAICS 335311
Posted Oct 30, 2026 · Responses due Nov 3, 2026

See all 10 open bids under NAICS 335311

Small business size standard for NAICS 335311

To bid on small business set-aside contracts under NAICS 335311, your business must be small under the SBA size standard for this code, measured either by average annual receipts or by number of employees. The values are updated periodically, so check the current SBA table of size standards before you bid.

Other NAICS codes in 3353

How to choose the right NAICS code

Pick the 6-digit code that best describes what you sell. List it as your primary code in SAM.gov, and add other codes for related work. Agencies choose one NAICS code for each contract, so check the codes on past awards for the kind of work you do. Search all codes in the NAICS code lookup.

Related guides

Frequently asked questions

What is NAICS code 335311?: NAICS 335311 is the industry "Power, Distribution, and Specialty Transformer Manufacturing" in the North American Industry Classification System, part of the Manufacturing sector (33).
What is the size standard for NAICS 335311?: The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 335311 in the SBA table of size standards on sba.gov; it changes from time to time.
Are there government contracts for NAICS 335311?: Yes. Federal agencies obligated $942M on contracts under NAICS 335311 from FY2024 to FY2026, and 10 notices are open right now.