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NAICS code lookup

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

8 NAICS codes for “security guard”

561612

Best match

Security Guards and Patrol Services

SBA small-business limit $29 million

Open bids

Businesses primarily engaged in providing guard and patrol services, such as bodyguard, guard dog, and parking security services.

Matched in the Census NAICS:

  • Security guard services
  • Guard services
  • Body guard services
611519

Other Technical and Trade Schools

SBA small-business limit $21 million · 1 exception

Open bids

Businesses primarily engaged in offering job or career vocational or technical courses (except cosmetology and barber training, aviation and flight training, and apprenticeship training).

Matched in the Census NAICS:

  • Security guard training
523150

Investment Banking and Securities Intermediation

SBA small-business limit $47 million

Open bids

Businesses primarily engaged in underwriting, originating, and/or maintaining markets for issues of securities, or acting as agents (i.e., brokers) between buyers and sellers in buying or selling securities on a…

Matched in the Census NAICS:

  • Brokerages, securities
  • Securities brokerages
  • Securities flotation companies
928110

National Security

No SBA size standard for this code

Open bids

Government establishments of the Armed Forces, including the National Guard, primarily engaged in national security and related activities.

Matched in the Census NAICS:

  • National Guard
523999

Miscellaneous Financial Investment Activities

SBA small-business limit $47 million

Open bids

Businesses primarily engaged in acting as agents and/or brokers (except securities brokerages and commodity contracts brokerages) in buying or selling financial contracts and those providing financial investment…

Matched in the Census NAICS:

  • Quotation services, securities
  • Securities transfer agencies
  • Transfer agencies, securities
611699

All Other Miscellaneous Schools and Instruction

SBA small-business limit $16.5 million

Open bids

Businesses primarily engaged in offering instruction (except academic schools, colleges, and universities; business, computer, and management instruction; technical and trade instruction; and fine arts, sports…

Matched in the Census NAICS:

  • Life guard training

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.