NAICS 333994: Industrial Process Furnace and Oven Manufacturing
Industrial Process Furnace and Oven Manufacturing is NAICS code 333994. A business is small under it with 500 employees or fewer. 3 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- 500 employees or fewer
- Open contracts now
- 3
- Federal spending, FY2025
- $25.5 million
- Share won by small businesses
- 66%
- Small businesses registered
- 239
Open federal contracts for industrial process furnace and oven manufacturing
- RETROFIT AND UPGRADE OF AN AJAX MOLTEN SALT BATH HEAT-TREATING TANK FURNACE AND QUENCH TANK REPLACEMENT
Due in 1 dayOct 7, 2026
- SPE4A8-27-Q-0003 Auto Clave
Due in 4 daysOct 9, 2026
- N0010425PR26438 FMS Repair Drier, Air-gas, desic
Due in 11 daysOct 16, 2026
What NAICS 333994 covers
The Census Bureau's NAICS index lists these kinds of work under 333994:
- Ceramic kilns and furnaces manufacturing
- Core baking and mold drying ovens manufacturing
- Dielectric industrial heating equipment manufacturing
- Distillation ovens, charcoal and coke, manufacturing
- Enameling ovens manufacturing
- Furnaces and ovens for drying and redrying, industrial process-type, manufacturing
- Furnaces and ovens, semiconductor wafer, manufacturing
- Furnaces, industrial and laboratory-type (except dental), manufacturing
- Garbage incinerators (except precast concrete) manufacturing
- Heat treating ovens, industrial process-type, manufacturing
- Incinerators (except precast concrete) manufacturing
- Induction heating equipment, industrial process-type, manufacturing
- Infrared ovens, industrial, manufacturing
- Japanning ovens manufacturing
The index lists 21 entries for this code in all.
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 333994
To count as a small business for a contract assigned NAICS 333994, your business must have 500 employees or fewer. Employees are averaged over the last 24 months.
From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.
Who buys industrial process furnace and oven manufacturing
Agencies that awarded the most under NAICS 333994 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Department of the Army | $19 million |
| Defense Logistics Agency | $13.9 million |
| United States Mint | $8.5 million |
| Department of Energy | $7.2 million |
| Department of the Navy | $6.5 million |
| Federal Acquisition Service | $5.3 million |
| Department of the Air Force | $4.9 million |
| National Aeronautics and Space Administration | $1 million |
Open notices right now come from Dept of Defense (3).
Set-asides on open 333994 contracts
- No set-aside (full and open): 3
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Your competition
239 businesses with active SAM.gov registrations are rated small under NAICS 333994, most of them in Texas (25), California (24), Pennsylvania (18), Florida (16) and Ohio (15). Look any of them up with the free CAGE code and UEI lookup.
Federal spending under 333994 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $31.1 million |
| FY2025 | $25.5 million |
| FY2026 | $11.4 million |
| FY2027 (so far) | $0 |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Related NAICS codes
- 333912 Air and Gas Compressor Manufacturing
- 333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing
- 333921 Elevator and Moving Stairway Manufacturing
- 333922 Conveyor and Conveying Equipment Manufacturing
- 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
- 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
- 333991 Power-Driven Handtool Manufacturing
- 333992 Welding and Soldering Equipment Manufacturing
Frequently asked questions
What is NAICS code 333994?
333994 is the 2022 NAICS code for Industrial Process Furnace and Oven Manufacturing. The Census Bureau's index lists work such as ceramic kilns and furnaces manufacturing, core baking and mold drying ovens manufacturing, dielectric industrial heating equipment manufacturing under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 333994?
500 employees or fewer. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.
Are there government contracts for industrial process furnace and oven manufacturing?
Yes. 3 federal contract opportunities under NAICS 333994 are open on SAM.gov right now. Agencies obligated about $25.5 million under this code in fiscal year 2025, according to USAspending.gov.
How do I add NAICS code 333994 to my SAM.gov registration?
Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.
Keep going
- Search other NAICS codes by keyword or company
- How to choose NAICS codes for government contracts
- NAICS codes with the most open federal contracts
FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.