SICCODE.comSIC LookupD Manufacturing32 Stone, Clay, Glass, and Concrete Products327 Concrete, Gypsum, and Plaster ProductsSIC 3271
SIC Code 3271 – Concrete Block and Brick
Official 4-digit SIC code Source: OSHA SIC Manual Updated Nov 13, 2026
At a glance
Companies
More specific segments
Related NAICS
Which businesses belong in SIC 3271?
Usually classified in SIC 3271
- Blocks, concrete and cinder
- Brick, concrete
- Paving block, concrete
- Plinth blocks, precast terrazzo
Usually classified elsewhere
- Construction 15-17 · Construction
- Ready-Mixed Concrete 3273 · Ready-Mixed Concrete
Official definition for SIC 3271 - Concrete Block and Brick
Establishments primarily engaged in manufacturing concrete building block and brick from a combination of cement and aggregate.
Source: OSHA SIC Manual
Companies in SIC 3271 - Concrete Block and Brick
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Mutual Materials Co Bellevue, WA | ||||
| Clayton Co Neptune, NJ | ||||
| Acme Brick Montgomery, AL |
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Mutual Materials Co · Bellevue, WA
Contact Website Phone Employees -
Clayton Co · Neptune, NJ
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Key facts for SIC 3271 - Concrete Block and Brick
- SIC code
- 3271
- Official title
- Concrete Block and Brick
- Scope
- OSHA SIC Manual, establishment-level
- Division
- D Manufacturing (20–39)
- Major group
- 32 Stone, Clay, Glass, and Concrete Products
- Industry group
- 327 Concrete, Gypsum, and Plaster Products
- Official source
- OSHA SIC Manual
- Where SIC is used
- Used on EPA permit forms and in OSHA inspection data, as well as SEC filings and business lists. See which agencies still use SIC codes →
SIC Classification Hierarchy
Four official SIC levels, plus a more detailed commercial classification level.
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Industry · Official 4-Digit 3271 Concrete Block and Brick
One example classification path is shown. Other branches may exist. The 6-digit Marketing Level is a commercial extension, not an official SIC classification.
Other codes in Industry Group 327: 3272 · Concrete Products, except Block and Brick 3273 · Ready-Mixed Concrete 3274 · Lime 3275 · Gypsum Products
More specific segments in SIC 3271
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
143 U.S. companies across 2 segments · Segment codes are 6-digit marketing categories that extend the official 4-digit SIC code. They are not official SIC codes.
SIC 3271 is in your list, which already includes all 2 segments.
| Code | Segment | Companies | Build your list |
|---|---|---|---|
| 3271-01 | Concrete-Block & Brick | 140 140 companies | |
| 3271-02 | Cinder Blocks | 3 3 companies |
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Example companies in SIC 3271
See how SICCODE.com evaluates businesses using documented activities and official SIC definitions. Select a company to review its classification and the reasoning behind it.
134 verified U.S. companies
- Northfield Block Co Morris, IL View classification →
- Trenwyth Industries Inc Emigsville, PA View classification →
- Casting Designs Inc Fort Worth, TX View classification →
- Binkley And Ober Inc Manheim, PA View classification →
- Glen Gery Brick York, PA View classification →
- Master Block El Mirage, AZ View classification →
- Boykin Brothers Inc Baton Rouge, LA View classification →
- Resco Products Inc East Canton, OH View classification →
NAICS, ISIC and NACE Rev. 2.1 crosswalk for SIC 3271 - Concrete Block and Brick
Correspondences in NAICS, ISIC and NACE Rev. 2.1 (via ISIC) for SIC 3271 - Concrete Block and Brick. These mappings do not replace the official SIC definition.
| System | Code | Title |
|---|---|---|
| SIC This page | 3271 | Concrete Block and Brick |
| NAICS | 327331 | Concrete Block and Brick Manufacturing Concrete Block and Brick Manufacturing |
| ISIC Rev. 4 | 2395 | Manufacture Of Articles Of Concrete, Cement And Plaster Manufacture Of Articles Of Concrete, Cement And Plaster |
| NACE Rev. 2.1 (via ISIC 2395) | 23.61 | Manufacture of concrete products for construction purposes Manufacture of concrete products for construction purposes |
| NACE Rev. 2.1 (via ISIC 2395) | 23.62 | Manufacture of plaster products for construction purposes Manufacture of plaster products for construction purposes |
| NACE Rev. 2.1 (via ISIC 2395) | 23.63 | Manufacture of ready-mixed concrete Manufacture of ready-mixed concrete |
| NACE Rev. 2.1 (via ISIC 2395) | 23.64 | Manufacture of mortars Manufacture of mortars |
| NACE Rev. 2.1 (via ISIC 2395) | 23.65 | Manufacture of fibre cement Manufacture of fibre cement |
| NACE Rev. 2.1 (via ISIC 2395) | 23.66 | Manufacture of other articles of concrete, cement and plaster Manufacture of other articles of concrete, cement and plaster |
Source: Eurostat, NACE Rev. 2.1 to ISIC Rev. 5 correspondence; United Nations Statistics Division, ISIC Rev. 4 to ISIC Rev. 5 correspondence table.
Sources for SIC 3271
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Official classification source U.S. Occupational Safety and Health Administration.
Standard Industrial Classification Manual (1987), SIC 3271. OSHA SIC Manual → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
SICCODE.com is an independent publisher. Official SIC titles and definitions come from the OSHA SIC Manual; commercial database counts are SICCODE.com records.
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About this classification
This page combines the official SIC definition with classification analysis, crosswalks, and SICCODE.com commercial data. Classifications are reviewed regularly by the Industry Classification Review Team.