NAICS Code 333994: Industrial Process Furnace and Oven Manufacturing
NAICS code 333994 is the industry for industrial process furnace and oven manufacturing in the Manufacturing sector. Agencies tag every federal contract with a NAICS code, so this is the code to list in your SAM.gov registration and to search for bids.
Open government bids for NAICS 333994
The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.
Dept of Defense · Combined Synopsis/Solicitation · NAICS 333994 · IL · Small Business Set Aside - Total
Posted Oct 30, 2026 · Responses due Nov 28, 2026
Energy, Department of · Solicitation · NAICS 333994 · IL · No Set aside used
Posted Oct 29, 2026 · Responses due Nov 12, 2026
- 44--DEHUMIDIFIER,SPACEClosing soon
Dept of Defense · Combined Synopsis/Solicitation · NAICS 333994 · Small Business Set Aside - Total
Posted Oct 29, 2026 · Responses due Nov 9, 2026
Small business size standard for NAICS 333994
To bid on small business set-aside contracts under NAICS 333994, your business must be small under the SBA size standard for this code, measured either by average annual receipts or by number of employees. The values are updated periodically, so check the current SBA table of size standards before you bid.
Other NAICS codes in 3339
- NAICS 333912: Air and Gas Compressor Manufacturing
- NAICS 333914: Measuring, Dispensing, and Other Pumping Equipment Manufacturing
- NAICS 333921: Elevator and Moving Stairway Manufacturing
- NAICS 333922: Conveyor and Conveying Equipment Manufacturing
- NAICS 333923: Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
- NAICS 333924: Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
- NAICS 333991: Power-Driven Handtool Manufacturing
- NAICS 333992: Welding and Soldering Equipment Manufacturing
- NAICS 333993: Packaging Machinery Manufacturing
- NAICS 333995: Fluid Power Cylinder and Actuator Manufacturing
- NAICS 333996: Fluid Power Pump and Motor Manufacturing
- NAICS 333998: All Other Miscellaneous General Purpose Machinery Manufacturing
How to choose the right NAICS code
Pick the 6-digit code that best describes what you sell. List it as your primary code in SAM.gov, and add other codes for related work. Agencies choose one NAICS code for each contract, so check the codes on past awards for the kind of work you do. Search all codes in the NAICS code lookup.
Related guides
Frequently asked questions
- What is NAICS code 333994?
- NAICS 333994 is the industry "Industrial Process Furnace and Oven Manufacturing" in the North American Industry Classification System, part of the Manufacturing sector (33).
- What is the size standard for NAICS 333994?
- The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 333994 in the SBA table of size standards on sba.gov; it changes from time to time.
- Are there government contracts for NAICS 333994?
- There is no federal contract spending for NAICS 333994 in our data for the last three fiscal years, but 3 notices are open right now.