2022 NAICS national industry in sector 31-33 Manufacturing
333511 Industrial Mold Manufacturing
NAICS 333511 is the US industry code for industrial mold manufacturing. This U.S.
- Code
- 333511 (2022 NAICS)
- Title
- Industrial Mold Manufacturing
- Part of
- Metalworking Machinery Manufacturing
- SBA small business limit
- Up to 500 employees
- Closest UK SIC
- 25930 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in manufacturing industrial molds for casting metals or forming other materials, such as plastics, glass, or rubber.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Establishments primarily engaged in manufacturing casting molds for steel ingots are classified in U.S. Industry 331511, Iron Foundries.
Activities listed under 333511
The Census index assigns these 7 activities to this code. If your business matches one, this is your code.
- Die-casting dies manufacturing
- Foundry casting molds manufacturing
- Industrial molds (except steel ingot) manufacturing
- Molds (except steel ingot), industrial, manufacturing
- Molds for forming materials (e.g., glass, plastics, rubber) manufacturing
- Molds for metal casting (except steel ingot) manufacturing
- Molds for plastics and rubber working machinery manufacturing
SBA size standard for 333511
To count as a small business for SBA loans and federal contracts under NAICS 333511, your business (including affiliates) must not exceed 500 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2593), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.