NAICS Code for Security Guard Company
The NAICS code for a security guard company is 561612, Security Guards and Patrol Services. Security guard and patrol services, including personal and property protection, fall under 561612, Security Guards and Patrol Services. Agencies use it to staff entry points, patrol facilities and screen visitors. Alarm monitoring is 561621, and investigations are 561611.
Related codes to add
Most businesses list several NAICS codes. Use 561612 as your primary if it covers most of your revenue, and add these when they describe work you also do:
| Code | Use it when | Size standard |
|---|---|---|
| 561611 Investigation and Personal Background Check Services | You do investigations or background checks. | $25 million or less in receipts |
| 561613 Armored Car Services | You run armored cars. | $43 million or less in receipts |
| 561621 Security Systems Services (except Locksmiths) | You install and monitor alarm systems. | $25 million or less in receipts |
Government contracts for this work
How to choose
Your primary NAICS code should match the work that brings in most of your revenue, and it sets which size standard applies to you for most set-aside contracts. Read each code's Census definition before you register. Our guide on how to choose NAICS codes covers the trade-offs. To see whether you count as small under these codes, try the size standard checker.
Frequently asked questions
What is the NAICS code for a security guard company?
The NAICS code for a security guard company is 561612, Security Guards and Patrol Services. Security guard and patrol services, including personal and property protection, fall under 561612, Security Guards and Patrol Services. Agencies use it to staff entry points, patrol facilities and screen visitors. Alarm monitoring is 561621, and investigations are 561611.
What is the SBA size standard for NAICS 561612?
A business counts as small under NAICS 561612 with $29 million or less in average annual receipts, under the SBA's table of size standards. Federal contracts set aside for small businesses under this code are limited to firms that meet it.
Can I list more than one NAICS code?
Yes. In your SAM.gov registration you pick one primary NAICS code and can add as many others as describe work you can actually do. Add every code below that fits, because agencies search and set aside contracts by code.