NAICS 5616in561:Administrative and Support Services

Investigation and Security Services

625 active contract opportunities

625

Active Opportunities

559

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Security Systems Services (except Locksmiths)339
  • Security Guards and Patrol Services237
  • Investigation and Personal Background Check Services28
  • Locksmiths12
  • Security Systems Services6

Set-Aside Distribution

  • 309
  • Small Business105
  • No Set Aside100
  • SDVOSB48
  • Small Business Set Aside - Total30

Top Locations

  • PA85
  • VA85
  • DC74
  • CA33
  • MD28

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...

St. Mary?s Falls Canal Security Guard Services

DEPT OF DEFENSE
DETROIT, MI
NAICS 561612
Posted Jan 30, 2026

Boise VA Security Maintenance & Software Support

VETERANS AFFAIRS, DEPARTMENT OF
VANCOUVER, WA
NAICS 561621
Posted Jan 29, 2026
No Set Aside

D-SUPPLY: AK-DILLINGHAM ADMIN-PHYS. SECURITY CAMERA INSTALL

INTERIOR, DEPARTMENT OF THE
Falls Church, VA
NAICS 561621
Posted Jan 29, 2026

7J-SUPPLY: AK-KODIAK ADMIN SITE-SURVEILLANCE SYSTEM

INTERIOR, DEPARTMENT OF THE
Falls Church, VA
NAICS 561621
Posted Jan 29, 2026

J063-Top Door Alarm System Services

VETERANS AFFAIRS, DEPARTMENT OF
RIDGELAND, MS
NAICS 561621
Posted Jan 29, 2026
SDVOSB

CCTV and Alarm System for Residence in Bratislava, Slovakia

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 561621
Posted Jan 28, 2026
No Set Aside

Justification for Sole Source to Chenega Global Protection LLC

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ATLANTA, GA
NAICS 561612
Posted Jan 27, 2026

Protective Security Officer Services

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

Security Guard Services

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ATLANTA, GA
NAICS 561612
Posted Jan 26, 2026

R-AAO SECURITY GUARD SERVICES

INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 561612
Posted Jan 26, 2026

IESS Solicitation (RFP)

DEPT OF DEFENSE
SAN DIEGO, CA
NAICS 561621
Posted Jan 24, 2026
Small Business

Armed Protective Security Officer Services - Arkansas Justification and Approval

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Jan 21, 2026

SBX Security Services

DEPT OF DEFENSE
NORFOLK, VA
NAICS 561612
Posted Jan 20, 2026
No Set Aside

Lenel Access Control System Maintenance and Repair Services

DEPT OF DEFENSE
NORFOLK, VA
NAICS 561621
Posted Jan 16, 2026
Small Business

San Francisco International Airport (SFO) Security Screening Services Extension

HOMELAND SECURITY, DEPARTMENT OF
Springfield, VA
NAICS 561612
Posted Jan 15, 2026

MTC Galaxy ACS and CCTV Replacement

DEPT OF DEFENSE
ANNVILLE, PA
NAICS 561621
Posted Jan 14, 2026
No Set Aside

Canine Explosive Support Services

TREASURY, DEPARTMENT OF THE
WASHINGTON, DC
NAICS 561612
Posted Jan 13, 2026
Small Business

Protective Security Officer (PSO) Services

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Jan 9, 2026

Protective Security Officer (PSO) Services

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Jan 9, 2026

Protective Security Officer (PSO) Services

HOMELAND SECURITY, DEPARTMENT OF
PHILADELPHIA, PA
NAICS 561612
Posted Jan 9, 2026
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