NAICS codes / 561621
NAICS 561621: Security Systems Services (except Locksmiths) — open federal opportunities
30 open notices on SAM.gov. Top buyers: DEPT OF DEFENSE (13), VETERANS AFFAIRS, DEPARTMENT OF (8), HEALTH AND HUMAN SERVICES, DEPARTMENT OF (5), TREASURY, DEPARTMENT OF THE (1).
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Lock, Key, and TRAKA Key Management Systems Maintenance and Support Services
TREASURY, DEPARTMENT OF THE · DEPARTMENTAL OFFICES · Solicitation · posted Oct 30, 2026
J063--Security Access Control and Video Surveillance Systems Maintenance.
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Sources Sought · posted Oct 30, 2026
J012-- Fire Alarm Suppression Maintenance & Repair Services
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Combined Synopsis/Solicitation · posted Oct 30, 2026
H263--ANTI-LIGATURE DOOR ALARM INSTALLATION SERVICES
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Sources Sought · posted Oct 30, 2026
Twenty-One Access-Control Door Panels and Enclosures and LenelS2 Onguard System Integration
DEPT OF DEFENSE · DEFENSE HEALTH AGENCY (DHA) · Combined Synopsis/Solicitation · posted Oct 30, 2026
L063-- Physical Security Equipment Maintenance and Testing
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Sources Sought · posted Oct 29, 2026
NAICS 561621Due Nov 5, 2026
Supply and Installation of a new security system in two Housing Compounds
STATE, DEPARTMENT OF · STATE, DEPARTMENT OF · Combined Synopsis/Solicitation · posted Oct 28, 2026
NAICS 561621Due Nov 30, 2026
Corrective and Preventative Maintenance of Electronic Security Systems at the Ronald Reagan Building
HOMELAND SECURITY, DEPARTMENT OF · OFFICE OF PROCUREMENT OPERATIONS · Solicitation · posted Oct 28, 2026
Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
HEALTH AND HUMAN SERVICES, DEPARTMENT OF · OFFICE OF INTERGOVERNMENTAL AND EXTERNAL AFFAIRS · Sources Sought · posted Oct 28, 2026
Northern California Area Office (NCAO) Fire Alarm
INTERIOR, DEPARTMENT OF THE · DEPARTMENTAL OFFICES · Combined Synopsis/Solicitation · posted Oct 27, 2026
H212-- Fire Pump Test and Alarm support
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Sources Sought · posted Oct 27, 2026
Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
HEALTH AND HUMAN SERVICES, DEPARTMENT OF · OFFICE OF INTERGOVERNMENTAL AND EXTERNAL AFFAIRS · Sources Sought · posted Oct 27, 2026
G2 Security
DEPT OF DEFENSE · DEPT OF THE ARMY · Sources Sought · posted Oct 27, 2026
J012-- Fire Alarm Suppression Maintenance & Repair Services
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Combined Synopsis/Solicitation · posted Oct 26, 2026
Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
HEALTH AND HUMAN SERVICES, DEPARTMENT OF · OFFICE OF INTERGOVERNMENTAL AND EXTERNAL AFFAIRS · Sources Sought · posted Oct 26, 2026
Fort Carson ICIDS Sources Sought Notice
DEPT OF DEFENSE · DEPT OF THE ARMY · Sources Sought · posted Oct 26, 2026
Tobyhanna Gates & Turnstiles
DEPT OF DEFENSE · DEPT OF THE ARMY · Solicitation · posted Oct 23, 2026
Tobyhanna Gates & Turnstiles
DEPT OF DEFENSE · DEPT OF THE ARMY · Solicitation · posted Oct 23, 2026
Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
HEALTH AND HUMAN SERVICES, DEPARTMENT OF · OFFICE OF INTERGOVERNMENTAL AND EXTERNAL AFFAIRS · Sources Sought · posted Oct 22, 2026
Tobyhanna Gates & Turnstiles
DEPT OF DEFENSE · DEPT OF THE ARMY · Solicitation · posted Oct 22, 2026
Tobyhanna Gates & Turnstiles
DEPT OF DEFENSE · DEPT OF THE ARMY · Solicitation · posted Oct 22, 2026
Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
HEALTH AND HUMAN SERVICES, DEPARTMENT OF · OFFICE OF INTERGOVERNMENTAL AND EXTERNAL AFFAIRS · Sources Sought · posted Oct 21, 2026
J012-- Fire Alarm Suppression Maintenance & Repair Services
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Combined Synopsis/Solicitation · posted Oct 19, 2026
W9124G26CBARRACKS
DEPT OF DEFENSE · DEPT OF THE ARMY · Combined Synopsis/Solicitation · posted Oct 16, 2026
Integrated Security Services Contract 5
DEPT OF DEFENSE · WASHINGTON HEADQUARTERS SERVICES (WHS) · Solicitation · posted Oct 7, 2026
NAICS 561621Due Mar 1, 2027
Electronic Security Systems
DEPT OF DEFENSE · DEPT OF THE ARMY · Combined Synopsis/Solicitation · posted Oct 7, 2026
Notice of Intent for Brand Name for Maintenance and Support for HUGS Patient Security System
DEPT OF DEFENSE · DEFENSE HEALTH AGENCY (DHA) · Presolicitation · posted Aug 11, 2026
Boise VA Security Equipment & Software Service Maintenance
VETERANS AFFAIRS, DEPARTMENT OF · VETERANS AFFAIRS, DEPARTMENT OF · Presolicitation · posted Oct 30, 2025
Naval Hospital Guam-Agana Expanded Badge Readers and Alarm Systems
DEPT OF DEFENSE · DEFENSE HEALTH AGENCY (DHA) · Special Notice · posted Aug 21, 2025
Fire Alarm BPA Fort Drum NY
DEPT OF DEFENSE · DEPT OF THE ARMY · Presolicitation · posted Jan 14, 2022
Related NAICS codes (industry group 5616)
- 561612 Security Guards and Patrol Services (21 open)
- 561611 Investigation and Personal Background Check Services (14 open)
- 561613 Armored Car Services (1 open)
How NAICS codes decide small business size: NAICS codes for small business · notice types explained · set-asides