Convert industry codes
Verified correspondences first — official tables and exact code matches. Where no verified mapping exists, we show clearly-labeled inferred matches through a standardized ISIC bucket, never presented as exact. How it works →
Best match: 331511 Iron Foundries. The whole of SIC 3321 sits inside this NAICS class (official containment) — it is broader than the source, not a one-to-one twin.
Approximate9
Same family via official correspondence tables (via ISIC 2431, 2823) — related activities, not one-to-one matches. Rows marked contained wholly contain the source activity.
- 331511Iron FoundriescontainedDetails →
- 331513Steel Foundries (except Investment)Details →
- 331512Steel Investment FoundriesDetails →
- 331210Iron and Steel Pipe and Tube Manufacturing from Purchased SteelDetails →
- 332313Plate Work ManufacturingDetails →
- 332420Metal Tank (Heavy Gauge) ManufacturingDetails →
- 333248All Other Industrial Machinery ManufacturingDetails →
- 333517Machine Tool ManufacturingDetails →
- 333519Rolling Mill and Other Metalworking Machinery ManufacturingDetails →
Grouped by evidence strength · How our conversions work →