Almost every form a manufacturer fills in asks for a NAICS code: SAM.gov registration for government work, supplier onboarding portals, insurance applications, bank and SBA loan paperwork, and the Census Bureau’s own surveys. The code also decides how buyers, distributors and data providers file your company, which affects who finds you when they search for suppliers.
The problem is that the official list has more than 1,000 six-digit codes with long, formal titles, and picking the wrong one is easy. So we built a free tool that does the matching for you: the NAICS Code Lookup on Factur Data.
What the NAICS Code Lookup does
You type what your business does, a product or service you sell, or a plain keyword. The tool searches the official 2022 NAICS titles and returns the matching codes, best match first. For each code it shows:
- The 6-digit code and its official title, for example 332710 Machine Shops.
- Where it sits in the hierarchy: sector, subsector and industry group, so you can check that the levels above the code describe you too. For 332710 that is 31-33 Manufacturing › 332 Fabricated Metal Product Manufacturing › 3327 Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing.
- The matching SIC code where one is on record (3599 for machine shops), for the lenders, data vendors and forms that still ask for the older system.
- A page for every code, with a plain-English description of the industry, its parent and sub-codes, and links to company lists and research for that industry.
It is free, needs no sign-up, and works on a phone. You can also browse all 20 NAICS sectors from the same page if you would rather start from the top.
How to find your NAICS code in three steps
- Describe the activity, not the brand. Type what you do in a few words: “CNC machining”, “injection molding”, “powder coating”, “commercial bakery”. A general word for the activity works better than a product name.
- Read the top results and their hierarchy. The best match is listed first. Check the sector and subsector above each code. Making a product and selling it wholesale are different sectors (31-33 Manufacturing against 42 Wholesale Trade), so the hierarchy tells you quickly whether a code fits.
- Pick the code for the activity that earns most of your revenue. That is your primary NAICS code. Forms that ask for “your NAICS code” almost always want this 6-digit primary code. You can list other codes as secondary codes where a form allows it, for example on a SAM.gov registration.
Common NAICS codes for manufacturers and suppliers
These are the codes we see most often among the industrial suppliers we prospect for. Search the lookup to confirm the one that fits you.
| Code | Official 2022 title |
|---|---|
| 332710 | Machine Shops |
| 332322 | Sheet Metal Work Manufacturing |
| 332312 | Fabricated Structural Metal Manufacturing |
| 332119 | Metal Crown, Closure, and Other Metal Stamping (except Automotive) |
| 332813 | Electroplating, Plating, Polishing, Anodizing, and Coloring |
| 332812 | Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers |
| 326199 | All Other Plastics Product Manufacturing |
| 326291 | Rubber Product Manufacturing for Mechanical Use |
| 333514 | Special Die and Tool, Die Set, Jig, and Fixture Manufacturing |
| 333517 | Machine Tool Manufacturing |
NAICS vs SIC: which one do you need?
SIC (Standard Industrial Classification) is the older 4-digit U.S. system, last revised in 1987. NAICS replaced it in 1997 and is revised every five years; 2022 is the current edition. Government agencies and most portals use NAICS. Some lenders, data vendors and the SEC still use SIC, which is why the lookup shows both. If you registered years ago, check that your code still exists: the 2022 revision moved and merged several industries.
Use NAICS codes to find customers, not just to fill in forms
Your buyers have NAICS codes too, and that is the most practical way to build a target list. If you machine parts for equipment builders, the equipment builders’ codes tell you which companies to call. Factur Data uses the same codes across its free U.S. company database:
- Largest companies by industry and state, with ranked lists for segments such as metal fabrication in Ohio, plastics and rubber products, and metal finishing.
- Industry pages that break each industry down by state, city and company size.
- The 2026 U.S. Manufacturing Sales Study, which tracks how quotes turn into purchase orders by state and industry. In that data, CNC machining and tool and die suppliers turned 71 of 421 quotes into purchase orders (17%); see sales by segment for the other segments.
Frequently asked questions
How do I find my NAICS code?
Describe what your business does in the NAICS Code Lookup, check the hierarchy of the top results, and pick the 6-digit code for the activity that brings in most of your revenue.
How many digits does a NAICS code have?
Up to six. Two digits are the sector, three the subsector, four the industry group, five the NAICS industry and six the national industry. Forms almost always want the 6-digit code.
Can a company have more than one NAICS code?
Yes. A company has one primary code, for its largest source of revenue, and may list secondary codes for its other activities, for example on a government contractor registration.
Is the NAICS Code Lookup free?
Yes. It is free to use, with no sign-up, and covers every code in the official 2022 edition.
Find your code now: open the free NAICS Code Lookup. And if you would rather have a team find the companies behind those codes and turn them into quotes, talk to Factur.
