NAICS Code 33281: Coating, Engraving, Heat Treating, and Allied Activities
NAICS industry
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.
Read the full definition
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.
Government contracts for this product: PSC 3426 Metal Finishing Equipment
Code facts
- Part of
-
-
31-33
-
332
- 3328
-
332
-
31-33
- Codes under it
- 3
- Contract awards
- 175 In the last 12 months
- Contract obligations
- $28,023,243 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $332,926 |
| FY2026 | $26,484,788 |
| FY2025 | $28,023,243 |
| FY2024 | $24,891,475 |
| FY2023 | $16,856,970 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Engineering And Software System Solutions, Inc. | $11,215,848 | |
| 2 | Trion Coatings, LLC | $2,118,759 | |
| 3 | Martin Aijs LLC | $2,117,090 | |
| 4 | Automatic Coating LIMITED USA | $1,693,522 | |
| 5 | Martin Military Inc. | $1,319,449 | |
| 6 | Engineering And Software System Solutions, Inc. | $1,231,381 | |
| 7 | Aerospace Coatings International, LLC | $925,080 | |
| 8 | Phygen, Inc. | $562,841 | |
| 9 | Air Quality Innovative Solutions LLC | $546,536 | |
| 10 | A & A Co Inc. | $505,347 |
See the full FY2025 ranking of NAICS 33281 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $12,550,768 | |
| 2 | Department of the Army | $5,553,891 | |
| 3 | Department of the Navy | $2,893,120 | |
| 4 | Department of Veterans Affairs | $2,284,070 | |
| 5 | Air Force | $1,591,013 | |
| 6 | Department of the Treasury | $881,298 | |
| 7 | Smithsonian Institution | $431,181 | |
| 8 | Department of Homeland Security | $408,091 | |
| 9 | General Services Administration | $210,652 | |
| 10 | Department of State | $20,772 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 3426 Metal Finishing Equipment | $13,072,265 | |
| 2 | 3460 Machine Tool Accessories | $2,595,440 | |
| 3 | J017 Maintenance, Repair and Rebuilding of Equipment: Aircraft Launching, Landing, and Ground Handling Equipment | $1,785,315 | |
| 4 | 9520 Structural Shapes | $1,503,150 | |
| 5 | J036 Maintenance, Repair and Rebuilding of Equipment: Special Industry Machinery | $1,161,869 | |
| 6 | K010 Modification of Equipment: Weapons | $762,701 | |
| 7 | J041 Maintenance, Repair and Rebuilding of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment | $546,536 | |
| 8 | J065 Maintenance, Repair and Rebuilding of Equipment: Medical, Dental, and Veterinary Equipment and Supplies | $528,000 | |
| 9 | J066 Maintenance, Repair and Rebuilding of Equipment: Instruments and Laboratory Equipment | $429,850 | |
| 10 | 3424 Metal Heat Treating and Non-Thermal Treating Equipment | $425,958 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Utah | $7,957,815 | |
| 2 | California | $3,100,937 | |
| 3 | Maryland | $2,455,657 | |
| 4 | Indiana | $2,118,759 | |
| 5 | New York | $1,992,385 | |
| 6 | Virginia | $1,958,255 | |
| 7 | Ohio | $1,735,550 | |
| 8 | Alabama | $957,080 | |
| 9 | New Jersey | $780,832 | |
| 10 | District of Columbia | $726,352 | |
| 11 | Connecticut | $446,148 | |
| 12 | Oklahoma | $428,390 | |
| 13 | Pennsylvania | $428,074 | |
| 14 | Idaho | $288,383 | |
| 15 | Iowa | $182,591 | |
| 16 | West Virginia | $115,355 | |
| 17 | Rhode Island | $99,584 | |
| 18 | Georgia | $74,934 | |
| 19 | Washington | $74,109 | |
| 20 | Maine | $69,731 | |
| 21 | Tennessee | $54,715 | |
| 22 | Missouri | $37,960 | |
| 23 | Florida | $27,424 | |
| 24 | North Carolina | $21,762 | |
| 25 | Texas | $13,835 | |
| 26 | Colorado | $7,650 |
Show all 26
Shares are of everything obligated under NAICS 33281 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 1,799 listed here. See the rest on GovTribe.
Codes under 33281
| NAICS code | Size standard |
|---|---|
| 332811 Metal Heat Treating | 750 employees |
| 332812 Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers | 600 employees |
| 332813 Electroplating, Plating, Polishing, Anodizing, and Coloring | 500 employees |
Quick answers
What is NAICS 33281?
NAICS 33281 is Coating, Engraving, Heat Treating, and Allied Activities, a NAICS industry in NAICS 31-33, Manufacturing.
What codes are under NAICS 33281?
NAICS 33281 has 3 codes under it with their own GovTribe pages: 332811 Metal Heat Treating; 332812 Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers; and 332813 Electroplating, Plating, Polishing, Anodizing, and Coloring.
How much do federal agencies spend under NAICS 33281?
Federal contracts under NAICS 33281 obligated $28,023,243 in fiscal year 2025 and $96,589,401 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 33281?
The contractors with the most obligated under NAICS 33281 in fiscal years 2026 and 2027 are Engineering And Software System Solutions, Inc. ($11,215,848); Trion Coatings, LLC ($2,118,759); and Martin Aijs LLC ($2,117,090).
Which agencies buy the most under NAICS 33281?
The agencies that obligated the most under NAICS 33281 in fiscal years 2026 and 2027 are Defense Logistics Agency ($12,550,768), Department of the Army ($5,553,891) and Department of the Navy ($2,893,120).
Which PSC codes are used with NAICS 33281?
The PSC codes with the most obligated under NAICS 33281 in fiscal years 2026 and 2027 are 3426 Metal Finishing Equipment; 3460 Machine Tool Accessories; and J017 Maintenance, Repair and Rebuilding of Equipment: Aircraft Launching, Landing, and Ground Handling Equipment.
Where is the work under NAICS 33281 performed?
By place of performance, the states with the most contract obligations under NAICS 33281 over the last 12 months are Utah ($7,957,815), California ($3,100,937) and Maryland ($2,455,657).
What is the latest contract opportunity under NAICS 33281?
The latest contract opportunity under NAICS 33281 is Dworshak Skeleton Bay Draft Tube Bulkhead Rehabilitation, award notice from ENDIST Walla Walla (USACE), posted November 9, 2026.
On GovTribe
See everything under NAICS 33281
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
- Contacts who buy under this code
- Ask GovTribe AI about this code