NAICS 56161in5616:Investigation and Security Services

Investigation, Guard, and Armored Car Services

206 active contract opportunities

206

Active Opportunities

191

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Security Guards and Patrol Services188
  • Investigation and Personal Background Check Services16
  • Armored Car Services2

Set-Aside Distribution

  • 130
  • Small Business28
  • No Set Aside23
  • SDVOSB12
  • SDVOSB Sole Source7

Top Locations

  • PA68
  • DC27
  • ID16
  • VA15
  • MD11

About NAICS56161

The North American Industry Classification System (NAICS) code 56161 covers investigation, guard, and armored car services. Federal agencies use NAICS codes to classify contracts by industry. Businesses should register their applicable NAICS codes in SAM.gov.

SAM.gov Registration →|Set-Aside Programs →

Related Industries

56111:Office Administrative Services56121:Facilities Support Services56131:Employment Placement Agencies ...56132:Temporary Help Services56133:Professional Employer Organiza...56141:Document Preparation Services

U.S. Mission Lome, Togo -Overseas Guard Services

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 561612
Posted Mar 23, 2026
Due May 4, 2026
No Set Aside

Armed Protective Security Officer (PSO) services at the Center for Medicaid Services (CMS) in Woodlawn, MD

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Mar 18, 2026

Contract Security Officer Services-Western Service Area

TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 561612
Posted Mar 17, 2026
No Set Aside

Armed Protective Security Officer Services - Minnesota/Wisconsin Justification and Approval

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Mar 12, 2026

R-MINIDOKA COUNTY SHERIFF LEO SERVICE

INTERIOR, DEPARTMENT OF THE
BOISE, ID
NAICS 561612
Posted Mar 11, 2026

Lower Columbia River Armed Security Services, Award Notice

DEPT OF DEFENSE
PORTLAND, OR
NAICS 561612
Posted Mar 10, 2026
SDVOSB

SSA Guards Services Notice

SOCIAL SECURITY ADMINISTRATION
BALTIMORE, MD
NAICS 561612
Posted Mar 10, 2026
No Set Aside

Construction Projects Escorts

DEPT OF DEFENSE
APO, AP
NAICS 561612
Posted Mar 6, 2026
No Set Aside

US Mission Yerevan

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 561612
Posted Mar 4, 2026

CEVC & PSM

DEPT OF DEFENSE
APO, AE
NAICS 561612
Posted Mar 4, 2026
No Set Aside

Armed Protective Security Officer Services - IRS Campus Austin, Texas

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Mar 3, 2026

Armed Protective Security Officer (PSO) Services throughout the WV Panhandle

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Mar 3, 2026
Small Business

Protective Security Officer (PSO) Services throughout Utah and Wyoming

HOMELAND SECURITY, DEPARTMENT OF
DENVER, CO
NAICS 561612
Posted Mar 2, 2026
No Set Aside

Albeni Falls Dam Sheriff Patrol Services

DEPT OF DEFENSE
SEATTLE, WA
NAICS 561612
Posted Mar 2, 2026

Notice of Consolidation Determination for Protective Security Officer (PSO) Services for Ft. Worth Texas, Dallas Texas

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Feb 27, 2026

Notice of Consolidation Determination for Protective Security Officer (PSO) Services for West Texas, South Texas and New Mexico

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Feb 27, 2026

US Mission Luxembourg

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 561612
Posted Feb 26, 2026
No Set Aside

R-CASSIA COUNTY SHERIFF LEO SERVICE

INTERIOR, DEPARTMENT OF THE
BOISE, ID
NAICS 561612
Posted Feb 23, 2026

US Mission Portugal Local Guard Services

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 561612
Posted Feb 19, 2026

Unarmed Security Guard Services at the Los Angeles National Cemetery. - S206

VETERANS AFFAIRS, DEPARTMENT OF
QUANTICO, VA
NAICS 561612
Posted Feb 15, 2026
SDVOSB
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