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: 331110 Iron and Steel Mills and Ferroalloy Manufacturing. The whole of SIC 3313 sits inside this NAICS class (official containment) — it is broader than the source, not a one-to-one twin.
Approximate6
Same family via official correspondence tables (via ISIC 2410) — related activities, not one-to-one matches. Rows marked contained wholly contain the source activity.
- 331110Iron and Steel Mills and Ferroalloy ManufacturingcontainedDetails →
- 332919Other Metal Valve and Pipe Fitting ManufacturingDetails →
- 332912Fluid Power Valve and Hose Fitting ManufacturingDetails →
- 331221Rolled Steel Shape ManufacturingDetails →
- 332996Fabricated Pipe and Pipe Fitting ManufacturingDetails →
- 331222Steel Wire DrawingDetails →
Grouped by evidence strength · How our conversions work →