NAICS 33612: Heavy Duty Truck Manufacturing
NAICS industry
Code facts
- Part of
-
-
31-33
-
336
- 3361
-
336
-
31-33
- Codes under it
- 1
- Contract awards
- 1,055 In the last 12 months
- Contract obligations
- $608,999,238 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 | -$19,958 |
| FY2026 | $465,814,113 |
| FY2025 | $608,999,238 |
| FY2024 | $255,198,727 |
| FY2023 | $365,609,084 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Mack Defense LLC | $154,147,666 | |
| 2 | Oshkosh Defense LLC | $114,850,488 | |
| 3 | Houston Freightliner, Inc. | $40,928,404 | |
| 4 | Central Kenworth LLC | $33,079,111 | |
| 5 | Fleetside Ford, Llc. | $31,949,369 | |
| 6 | Pierce Manufacturing Inc. | $18,256,871 | |
| 7 | International Motors, LLC | $16,441,285 | |
| 8 | Ravelin Defense, Inc. | $15,904,556 | |
| 9 | American Material Handling, Inc. | $12,056,500 | |
| 10 | Fontaine Commercial Trailer, Inc. | $8,203,574 |
See the full FY2025 ranking of NAICS 33612 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | General Services Administration | $157,073,214 | |
| 2 | Department of the Army | $147,746,123 | |
| 3 | Department of the Navy | $114,848,496 | |
| 4 | Department of the Interior | $18,768,966 | |
| 5 | Air Force | $15,625,475 | |
| 6 | National Aeronautics and Space Administration | $4,976,892 | |
| 7 | Department of Justice | $2,988,462 | |
| 8 | Department of Veterans Affairs | $2,559,676 | |
| 9 | Department of Homeland Security | $1,398,414 | |
| 10 | Department of Health and Human Services | $1,038,108 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 2320 Trucks and Truck Tractors, Wheeled | $320,891,620 | |
| 2 | 2355 Combat, Assault, and Tactical Vehicles, Wheeled | $113,474,739 | |
| 3 | 4210 Fire Fighting Equipment | $25,558,545 | |
| 4 | K023 Modification of Equipment: Ground Effect Vehicles, Motor Vehicles, Trailers, and Cycles | $2,206,451 | |
| 5 | W023 Lease or Rental of Equipment: Ground Effect Vehicles, Motor Vehicles, Trailers, and Cycles | $2,164,162 | |
| 6 | 2540 Vehicular Furniture and Accessories | $1,319,561 | |
| 7 | 2310 Passenger Motor Vehicles | $811,189 | |
| 8 | W063 Lease or Rental of Equipment: Alarm, Signal, and Security Detection Systems | $608,088 | |
| 9 | 4630 Sewage Treatment Equipment | $395,514 | |
| 10 | W065 Lease or Rental of Equipment: Medical, Dental, and Veterinary Equipment and Supplies | $346,009 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Pennsylvania | $154,204,907 | |
| 2 | Wisconsin | $133,107,359 | |
| 3 | Texas | $44,218,556 | |
| 4 | Maryland | $37,181,259 | |
| 5 | Iowa | $31,949,369 | |
| 6 | Tennessee | $16,449,965 | |
| 7 | Arizona | $15,904,556 | |
| 8 | Georgia | $12,285,730 | |
| 9 | Alabama | $8,483,782 | |
| 10 | Mississippi | $3,384,014 | |
| 11 | Virginia | $3,070,742 | |
| 12 | District of Columbia | $2,598,840 | |
| 13 | Ohio | $1,160,562 | |
| 14 | Utah | $546,907 | |
| 15 | Minnesota | $481,855 | |
| 16 | Maine | $232,409 | |
| 17 | South Carolina | $215,450 | |
| 18 | Colorado | $170,335 | |
| 19 | New Jersey | $167,191 | |
| 20 | Montana | $68,104 | |
| 21 | Alaska | $24,997 | |
| 22 | Florida | $24,402 | |
| 23 | Illinois | $22,700 | |
| 24 | Missouri | $20,470 | |
| 25 | Oklahoma | $9,614 | |
| 26 | Michigan | $2,384 |
Show all 26
Shares are of everything obligated under NAICS 33612 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 1,815 listed here. See the rest on GovTribe.
Codes under 33612
| NAICS code | Size standard |
|---|---|
| 336120 Heavy Duty Truck Manufacturing | 1,500 employees |
Definition
This industry comprises establishments primarily engaged in (1) manufacturing heavy duty truck chassis and assembling complete heavy duty trucks, buses, heavy duty motor homes, and other special purpose heavy duty motor vehicles for highway use or (2) manufacturing heavy duty truck chassis only.
Illustrative examples
- Assembly plants, heavy trucks, and buses on chassis of own manufacture
- Buses (except trackless trolley) assembling on chassis of own manufacture
- Chassis, heavy truck, with or without cabs, manufacturing
- Garbage trucks assembling on chassis of own manufacture
- Heavy trucks assembling on chassis of own manufacture
- Highway tractors assembled on chassis of own manufacture
- Motor homes, self-contained, mounted on heavy truck chassis of own manufacture
- Special purpose highway vehicles (e.g., firefighting vehicles) assembling on heavy chassis of own manufacture
- Tractors, truck for highway use, assembled on chassis of own manufacture
- Truck tractors for highway use, assembling on chassis of own manufacture
- Trucks, heavy, assembling on chassis of own manufacture
Show all 11
Quick answers
What is NAICS 33612?
NAICS 33612 is Heavy Duty Truck Manufacturing, a NAICS industry in NAICS 31-33, Manufacturing.
What is the NAICS code for heavy trucks assembling on chassis of own manufacture?
The NAICS code for heavy trucks assembling on chassis of own manufacture is 336120, Heavy Duty Truck Manufacturing. Its SBA small business size standard is 1,500 employees.
What is the NAICS code for garbage trucks assembling on chassis of own manufacture?
The NAICS code for garbage trucks assembling on chassis of own manufacture is 336120, Heavy Duty Truck Manufacturing. Its SBA small business size standard is 1,500 employees.
What is the NAICS code for highway tractors assembled on chassis of own manufacture?
The NAICS code for highway tractors assembled on chassis of own manufacture is 336120, Heavy Duty Truck Manufacturing. Its SBA small business size standard is 1,500 employees.
What codes are under NAICS 33612?
NAICS 33612 has one code under it with its own GovTribe page, 336120 Heavy Duty Truck Manufacturing.
How much do federal agencies spend under NAICS 33612?
Federal contracts under NAICS 33612 obligated $608,999,238 in fiscal year 2025 and $1,695,601,203 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 33612?
The contractors with the most obligated under NAICS 33612 in fiscal years 2026 and 2027 are Mack Defense LLC ($154,147,666); Oshkosh Defense LLC ($114,850,488); and Houston Freightliner, Inc. ($40,928,404).
Which agencies buy the most under NAICS 33612?
The agencies that obligated the most under NAICS 33612 in fiscal years 2026 and 2027 are General Services Administration ($157,073,214), Department of the Army ($147,746,123) and Department of the Navy ($114,848,496).
Which PSC codes are used with NAICS 33612?
The PSC codes with the most obligated under NAICS 33612 in fiscal years 2026 and 2027 are 2320 Trucks and Truck Tractors, Wheeled; 2355 Combat, Assault, and Tactical Vehicles, Wheeled; and 4210 Fire Fighting Equipment.
Where is the work under NAICS 33612 performed?
By place of performance, the states with the most contract obligations under NAICS 33612 over the last 12 months are Pennsylvania ($154,204,907), Wisconsin ($133,107,359) and Texas ($44,218,556).
What is the latest contract opportunity under NAICS 33612?
The latest contract opportunity under NAICS 33612 is 509 LRS – Oshkosh Snozzle, solicitation from Global Strike Command (USAF), posted September 23, 2026.
On GovTribe
See everything under NAICS 33612
- 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