NAICS 5616in561:Administrative and Support Services

Investigation and Security Services

411 active contract opportunities

411

Active Opportunities

378

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Security Systems Services (except Locksmiths)196
  • Security Guards and Patrol Services187
  • Investigation and Personal Background Check Services16
  • Locksmiths6
  • Security Systems Services4

Set-Aside Distribution

  • 224
  • Small Business86
  • No Set Aside50
  • SDVOSB26
  • SDVOSB Sole Source8

Top Locations

  • PA77
  • VA45
  • DC40
  • MD21
  • CA18

About NAICS5616

The North American Industry Classification System (NAICS) code 5616 covers investigation and security 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

5611:Office Administrative Services5612:Facilities Support Services5613:Employment Services5614:Business Support Services5615:Travel Arrangement and Reserva...5617:Services to Buildings and Dwel...

Fire Alarm Repairs at Milwaukee Job Corps Center

Small Business Administration (SBA)
WI
NAICS 561621
Posted Apr 20, 2026
Due May 16, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

J063-NIHCS Physical Access Control System

VETERANS AFFAIRS, DEPARTMENT OF
DAYTON, OH
NAICS 561621
Posted Mar 19, 2026
SDVOSB

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

H212-NIHCS Fire Alarm & Suppression Testing

VETERANS AFFAIRS, DEPARTMENT OF
DAYTON, OH
NAICS 561621
Posted Mar 13, 2026
Small Business

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

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

7B-SUPPLY: SC SANTEE NWR NVR VIDEO SURVEILLANCE

INTERIOR, DEPARTMENT OF THE
Falls Church, VA
NAICS 561621
Posted Mar 12, 2026

J063-SEPG 517692 EER 2711993 662-26-1-096-0025 SECURITY CAMERA

VETERANS AFFAIRS, DEPARTMENT OF
MATHER, CA
NAICS 561621
Posted Mar 12, 2026
Small Business

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

Security Systems Maintenance (SSM)

TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 561621
Posted Mar 10, 2026
No Set Aside

Construction Projects Escorts

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

82 CES FIRE DEPARTMENT CAMERA MAINTENANCE

DEPT OF DEFENSE
SHEPPARD AFB, TX
NAICS 561621
Posted Mar 5, 2026
Small Business

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

Piedmont Fire and Security Monitoring System Install & Monthly Monitoring

DEPT OF DEFENSE
WILMINGTON, NC
NAICS 561621
Posted Mar 3, 2026
No Set Aside

Protective Security Officer (PSO) Services throughout Utah and Wyoming

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