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NAICS code lookup

Get the 2022 NAICS codes that fit your business, with the Census lines that matched.

9 NAICS codes for “plumbing contractors plumbers”

332913

Plumbing Fixture Fitting and Trim Manufacturing

SBA small-business limit 1,000 employees

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Businesses primarily engaged in manufacturing plumbing fixture fittings and trim of all materials, such as faucets, flush valves, and shower heads.

Matched in the Census NAICS:

  • Faucets, plumbing, manufacturing
  • Backflow preventers, plumbing, manufacturing
  • Cocks, drain, plumbing, manufacturing
332919

Other Metal Valve and Pipe Fitting Manufacturing

SBA small-business limit 750 employees

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Businesses primarily engaged in manufacturing metal valves (except industrial valves, fluid power valves, fluid power hose fittings, and plumbing fixture fittings and trim).

Matched in the Census NAICS:

  • Breakers, vacuum, plumbing, manufacturing
  • Boiler couplings and drains, plumbing and heating-type, manufacturing
  • Valves, inline plumbing and heating (e.g., cutoffs, stop), manufacturing
326191

Plastics Plumbing Fixture Manufacturing

SBA small-business limit 750 employees

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Businesses primarily engaged in manufacturing plastics or fiberglass plumbing fixtures.

Matched in the Census NAICS:

  • Cultured marble plumbing fixtures manufacturing
  • Plumbing fixtures (e.g., shower stalls, toilets, urinals), plastics or fiberglass, manufacturing
327110

Pottery, Ceramics, and Plumbing Fixture Manufacturing

SBA small-business limit 1,000 employees

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Businesses primarily engaged in shaping, molding, glazing, and firing pottery, ceramics, plumbing fixtures, and electrical supplies made entirely or partly of clay or other ceramic materials.

Matched in the Census NAICS:

  • Plumbing fixtures, vitreous china, manufacturing
  • Vitreous china plumbing fixtures manufacturing
611513

Apprenticeship Training

SBA small-business limit $11.5 million

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Businesses primarily engaged in offering apprenticeship training programs.

Matched in the Census NAICS:

  • Plumbers' apprenticeship training
444180

Other Building Material Dealers

SBA small-business limit $25 million

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Businesses (except home centers, paint and wallpaper retailers, and hardware retailers) primarily engaged in retailing specialized lines of new building materials, such as lumber, fencing, glass, doors, plumbing…

Matched in the Census NAICS:

  • Plumbing supply stores
  • Plumbing supply retailers

Pick the code for the work that brings in most of your revenue.

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How to use the NAICS code lookup

  1. Describe what you doUse the words a customer would: “commercial lawn mowing”, not “green services company”.
  2. Compare the best matchesEach code shows the Census lines that matched and its SBA size limit. Open a code page to read its full definition.
  3. Pick a primary codeChoose the code for the work that brings in most of your revenue, then list the others in SAM.gov.

Example: a roofing company. “commercial roofing” → 238160 Roofing Contractors, SBA limit $19 million in average annual revenue.

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Good to know

What is a NAICS code?

The North American Industry Classification System gives every type of business a six-digit code. Federal agencies put one NAICS code on each solicitation, and SAM.gov registration asks for yours.

Why your NAICS code matters for bids

The code on a solicitation sets the SBA size standard for that bid, so it decides whether you can compete for small-business set-asides.

Questions

How do I find my NAICS code?

Describe your main activity in a few words (what you do, not what you are called), for example “commercial lawn mowing” or “office cleaning”. Open the code pages of the best matches and pick the one whose definition and examples fit what brings in most of your revenue.

Can a business have more than one NAICS code?

Yes. In your SAM.gov registration you can list every NAICS code you work in and mark one as your primary code.

Which NAICS code is used for a government bid?

The one on the solicitation. Federal agencies assign one NAICS code to each solicitation, and the SBA size standard of that code decides whether you count as a small business for that bid.

Is this the official NAICS search?

No. PublicBeam is independent. It searches the official 2022 NAICS files of the U.S. Census Bureau, which also has its own search at census.gov/naics.

Source: U.S. Census Bureau, 2022 NAICS (public domain). PublicBeam is independent and not affiliated with the Census Bureau or any agency. Always check the NAICS code in the official notice before you bid.