Analysis
NAICS 33281 is the 2022 NAICS industry for coating, engraving, heat treating, and allied activities, part of 3328 (Coating, Engraving, Heat Treating, and Allied Activities). Census lists 44 example activities under it in the official index.
County Business Patterns counts 5,359 US establishments in this code in 2023, employing 120,955 people at an average annual payroll of $59,236 per employee (32nd percentile of national industries). 29% of the establishments have fewer than five employees, which is close to the national mix.
Across its national industries Census lists 44 index entries; typical ones are annealing metals and metal products for the trade, aluminum coating of metal products for the trade and anodizing metals and metal products for the trade.
It splits into 3 more detailed codes. The largest by establishments is 332812 (Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers) with 2,672.
Its more detailed codes are 332811 Metal Heat Treating (697 establishments), 332812 Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers (2,672 establishments) and 332813 Electroplating, Plating, Polishing, Anodizing, and Coloring (1,990 establishments).
For example, engraving, chasing, or etching jewelry, metal personal goods, or precious metal products (except precious plated flatware and other plated ware) are classified in 33991 (Jewelry and Silverware Manufacturing) instead.
Official definition
This industry comprises establishments primarily engaged in one or more of the following: (1) heat treating metals and metal products; (2) enameling, lacquering, and varnishing metals and metal products; (3) hot dip galvanizing metals and metal products; (4) engraving, chasing, or etching metals and metal products (except jewelry; personal goods carried on or about the person, such as compacts and cigarette cases; precious metal products (except precious plated flatware and other plated ware); and printing plates); (5) powder coating metals and metal products; (6) electroplating, plating, anodizing, coloring, and finishing metals and metal products; and (7) providing other metal surfacing services for the trade. Establishments in this industry coat, engrave, and heat treat metals and metal formed products fabricated elsewhere. Included in this industry are establishments that perform these processes on other materials, such as plastics, in addition to metals.
Source: US Census Bureau, NAICS 2022 Manual.
Not this code if…
| The business mainly does | Use instead |
|---|---|
| Engraving, chasing, or etching jewelry, metal personal goods, or precious metal products (except precious plated flatware and other plated ware) | 33991 Jewelry and Silverware Manufacturing |
| Engraving, chasing, or etching printing plates | 32312 Support Activities for Printing |
Index entries (44)
- Annealing metals and metal products for the trade
- Aluminum coating of metal products for the trade
- Anodizing metals and metal products for the trade