NAICS 331111: Iron and Steel Mills
NAICS 331111 - Iron and Steel Mills covers the primary production of iron and steel, including the operation of blast furnaces and electric arc furnaces to produce raw steel and iron products. This industry provides the foundational metallic materials required for heavy infrastructure, vehicle manufacturing, and defense hardware.
Industry Spending Overview
Federal obligations, top contractors and agencies, and related industry codes for NAICS 331111.
AI Industry Description
NAICS 331111 - Iron and Steel Mills covers the primary production of iron and steel, including the operation of blast furnaces and electric arc furnaces to produce raw steel and iron products. This industry provides the foundational metallic materials required for heavy infrastructure, vehicle manuf...
NAICS 331111 - Iron and Steel Mills covers the primary production of iron and steel, including the operation of blast furnaces and electric arc furnaces to produce raw steel and iron products. This industry provides the foundational metallic materials required for heavy infrastructure, vehicle manufacturing, and defense hardware. Within the government contracting landscape, this sector serves as a critical upstream supplier, providing the raw materials and forged components necessary for large-scale military and industrial applications. The competitive landscape features a mix of specialized industrial suppliers and diversified conglomerates. Key contractors operating in this space include Pioneer Industries, LLC, 3M Company, VSGI LLC, and Alloy Sling Chains, LLC, representing a range of capabilities from specialized alloy production to large-scale industrial manufacturing. The Department of Defense is the primary driver of demand in this sector. Procurement patterns indicate that the military's requirements for structural steel, armored plating, and heavy-duty metallic components are the central missions fueling awards within this NAICS code.
Competition
How many companies historically bid on federal awards in NAICS 331111, from bidder counts reported on USAspending.
Median 3-5 bidders per reported award. · 14,907 reported awards
Median Bidders
3
Per reported award, all-time
Single-Bid Awards
23%
Share of reported awards with one bidder
10+ Bidder Awards
3%
Share of reported awards with 10+ bidders
Reported Awards
95% of 15,774 total awards
How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.
| Industry Family | Competition | Median Bidders | Single-Bid | Bidder Mix | Reported Awards |
|---|---|---|---|---|---|
331111This Code Iron and Steel Mills | Moderate Competition | 3 | 23% | 14,90795% of 15,774 | |
33111NAICS Industry | Moderate Competition | 3 | 18% | 26,63189% of 30,026 | |
3311Industry Group Iron and Steel Mills and Ferroalloy Manufacturing | Moderate Competition | 3 | 18% | 26,63189% of 30,026 | |
331Subsector | Moderate Competition | 3 | 25% | 208,26883% of 251,042 | |
33Sector Manufacturing | Fewer Bidders | 2 | 44% | 16,883,00469% of 24,369,785 |
Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.
Related NAICS Codes
Industries similar to Iron and Steel Mills, by shared sector, subsector, and industry group.
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