NAICS 561612: Security Guards and Patrol Services — Federal Contracts

What NAICS 561612 covers

The North American Industry Classification System (NAICS) is the standard the federal government uses to classify the industry of every contractor and every procurement. NAICS 561612 identifies businesses primarily engaged in security guards and patrol services. When a contracting officer publishes a solicitation on SAM.gov, they tag it with the NAICS code that best matches the work — which is why getting your NAICS portfolio right inside SAM is the single most important step for showing up in agency searches.

Who buys NAICS 561612?

The federal agencies awarding the most contract value to vendors in this NAICS, based on 30 contractors tracked in the Mindy contractor database:

1. 1U.s. Immigration And Customs Enforcement
2. 2U.s. Marshals Service
3. 3Office Of Procurement Operations
4. 4Federal Acquisition Service
5. 5Federal Prison System / Bureau Of Prisons

Source: aggregated from the Mindy contractor database (prime contractor disclosures via SBA + agency directories).

Top contractors in NAICS 561612

The largest prime contractors associated with NAICS 561612, ranked by total reported federal contract value. These are your most likely incumbents — and your most likely teaming partners on recompetes:

1. 1
   Mvm INC.

   $854.3M total reported value
2. 2
   The Geo Group INC

   $640.7M total reported value
3. 3
   Metropolitan Security Services INC.

   $520.5M total reported value
4. 4
   Securitas Ab

   $446.8M total reported value
5. 5
   Constellis Holdings LLC

   $324.1M total reported value
6. 6
   The Geo Group INC.

   $218.8M total reported value
7. 7
   Inter-con Security Systems INC.

   $129.3M total reported value
8. 8
   Vmd Systems Integrators INC

   $127.4M total reported value

Values reflect each contractor's aggregate reported federal contract value (across all of their NAICS codes, not just 561612). Use as a ranking signal, not as a per-NAICS award total.