NAICS Code 331110: Iron and Steel Mills and Ferroalloy Manufacturing
NAICS code 331110 is the industry for iron and steel mills and ferroalloy 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 331110
Federal agencies obligated $331M on contracts under NAICS 331110 from FY2024 to FY2026, including $225M in FY2026. The biggest buyers were the Department of Defense, the Department of Justice, the Department of the Interior. The largest contractors were Cliffs Steel Inc, CBMM North America, Inc, Supplycore LLC.
See the full breakdown: government iron and steel mills and ferroalloy manufacturing contracts, who wins and who buys.
Open government bids for NAICS 331110
The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.
Dept of Defense · Combined Synopsis/Solicitation · NAICS 331110 · SBA Certified Women-Owned Small Business (WOSB) Program Set-Aside (FAR 19.15)
Posted Nov 1, 2026 · Responses due Nov 12, 2026
Dept of Defense · Combined Synopsis/Solicitation · NAICS 331110 · Small Business Set Aside - Total
Posted Oct 30, 2026 · Responses due Nov 9, 2026
Small business size standard for NAICS 331110
To bid on small business set-aside contracts under NAICS 331110, 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.
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 331110?
- NAICS 331110 is the industry "Iron and Steel Mills and Ferroalloy Manufacturing" in the North American Industry Classification System, part of the Manufacturing sector (33).
- What is the size standard for NAICS 331110?
- 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 331110 in the SBA table of size standards on sba.gov; it changes from time to time.
- Are there government contracts for NAICS 331110?
- Yes. Federal agencies obligated $331M on contracts under NAICS 331110 from FY2024 to FY2026, and 2 notices are open right now.