NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01
326140
NAICS 326140 — Polystyrene Foam Product Manufacturing
Polystyrene Foam Product Manufacturing
NAICS 326140 is the national industry code for polystyrene foam product manufacturing establishments in the United States. The Small Business Administration sets a size standard of 1,000 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
SBA: 1,000
View full SBA standard
Official Illustrative Examples
Primary activities officially recognized by Census Bureau / Statistics Canada:
coolers or ice chests, polystyrene foam, manufacturing dinnerware, polystyrene foam, manufacturing expanded polystyrene products, manufacturing food containers, polystyrene foam, manufacturing profile shapes, polystyrene foam, manufacturing thermal insulation, polystyrene foam, manufacturing
Complete Index of Activities (9 recognized activities) ▼
coolers or ice chests, polystyrene foam, manufacturing
dinnerware, polystyrene foam, manufacturing
expanded polystyrene products, manufacturing
food containers, polystyrene foam, manufacturing
polystyrene foam packaging, manufacturing
profile shapes, polystyrene foam, manufacturing
sheet (i.e., board), polystyrene foam insulation, manufacturing
shipping pads and shaped cushioning, polystyrene foam, manufacturing
thermal insulation, polystyrene foam, manufacturing
Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.
Cross-references & crosswalks
SBA size standard description
Polystyrene Foam Product Manufacturing
Changes to receipts-based standard: [object Object]
Trade codes using this NAICS
These Schedule B export codes explicitly reference NAICS 326140 in the Census trade classification files.