NAICS 561621 – Security Systems Services (except Locksmiths)

What NAICS 561621 (Security Systems Services (except Locksmiths)) covers, and 185 active federal contract opportunities classified under it.

Part of NAICS Sector 56 – Administrative and Support and Waste Management and Remediation Services

Recent Opportunities

• Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
  Agency: HEALTH AND HUMAN SERVICES, DEPARTMENT OF Posted: Oct 26, 2026 Due: Nov 4, 2026 NAICS: 561621 Location: MD
• J012-- Fire Alarm Suppression Maintenance & Repair Services
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Oct 26, 2026 Due: Nov 4, 2026 NAICS: 561621 Set-Aside: SDVOSBC
• Fort Carson ICIDS Sources Sought Notice
  Agency: DEPT OF DEFENSE Posted: Oct 26, 2026 Due: Nov 5, 2026 NAICS: 561621 Set-Aside: SBA
• Tobyhanna Gates & Turnstiles
  Agency: DEPT OF DEFENSE Posted: Oct 23, 2026 Due: Nov 13, 2026 NAICS: 561621 Set-Aside: SBA Location: PA
• Tobyhanna Gates & Turnstiles
  Agency: DEPT OF DEFENSE Posted: Oct 23, 2026 Due: Nov 13, 2026 NAICS: 561621 Set-Aside: SBA Location: PA
• H312--Fire Alarm and Testing Inspection FY 2027 Services Procurement - 541 Engineering - VAMC CLEVELAND
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Oct 23, 2026 Due: Oct 30, 2026 NAICS: 561621 Location: OH
• Security Gate Maintenance and Repair Services Aberdeen Test Center, Aberdeen Proving Ground, MD
  Agency: DEPT OF DEFENSE Posted: Oct 23, 2026 Due: Nov 2, 2026 NAICS: 561621 Set-Aside: NONE Location: MD
• Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
  Agency: HEALTH AND HUMAN SERVICES, DEPARTMENT OF Posted: Oct 22, 2026 Due: Nov 4, 2026 NAICS: 561621 Location: MD
• J--FIRE AND SECURITY ALARM MONITORING SERVICES FOR GO
  Agency: INTERIOR, DEPARTMENT OF THE Posted: Oct 22, 2026 Due: Oct 29, 2026 NAICS: 561621
• Tobyhanna Gates & Turnstiles
  Agency: DEPT OF DEFENSE Posted: Oct 22, 2026 Due: Nov 13, 2026 NAICS: 561621 Set-Aside: SBA Location: PA
• Tobyhanna Gates & Turnstiles
  Agency: DEPT OF DEFENSE Posted: Oct 22, 2026 Due: Nov 13, 2026 NAICS: 561621 Set-Aside: SBA Location: PA
• J--FIRE AND SECURITY ALARM MONITORING SERVICES FOR GO
  Agency: INTERIOR, DEPARTMENT OF THE Posted: Oct 22, 2026 Due: Oct 29, 2026 NAICS: 561621
• IRS Intrusion Detection System, C. Clifton Young Federal Building & US Courthouse
  Agency: GENERAL SERVICES ADMINISTRATION Posted: Oct 22, 2026 Due: Nov 2, 2026 NAICS: 561621 Set-Aside: SBA Location: NV
• Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support
  Agency: HEALTH AND HUMAN SERVICES, DEPARTMENT OF Posted: Oct 21, 2026 Due: Nov 19, 2026 NAICS: 561621 Location: MD
• Troubleshooting and repair of access control panels on the Superior National Forest
  Agency: AGRICULTURE, DEPARTMENT OF Posted: Oct 21, 2026 Due: Oct 30, 2026 NAICS: 561621 Set-Aside: SBA Location: MN
• Notice of Intent to Sole Source - Replacement Marine Fire Detection and Alarm System – Motor Vessel Quincy
  Agency: DEPT OF DEFENSE Posted: Oct 20, 2026 Due: Oct 27, 2026 NAICS: 561621 Set-Aside: NONE Location: IA
• Notice of Intent to Sole Source - Replacement Marine Fire Detection and Alarm System – Motor Vessel Quincy
  Agency: DEPT OF DEFENSE Posted: Oct 20, 2026 Due: Oct 27, 2026 NAICS: 561621 Set-Aside: NONE Location: IA
• J042--Fire Alarm System Monitoring and Programming INTENT TO SOLE SOURCE
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Oct 20, 2026 Due: Oct 28, 2026 NAICS: 561621
• J012-- Fire Alarm Suppression Maintenance & Repair Services
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Oct 19, 2026 Due: Nov 4, 2026 NAICS: 561621 Set-Aside: SDVOSBC
• J063 Service and Software Updates to Security Access Control and Camera Systems Across Idaho/ Eastern Oregon VA Locations
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Oct 19, 2026 Due: Oct 28, 2026 NAICS: 561621 Location: ID
• H312--Fire Alarm Maintenance Service Contract FY27 - NEW Base + Four - 583
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Oct 16, 2026 Due: Oct 23, 2026 NAICS: 561621
• Video Surveillance System Replacement requirement at the Roman Hruska U.S. Courthouse in Omaha, Nebraska
  Agency: HOMELAND SECURITY, DEPARTMENT OF Posted: Oct 16, 2026 NAICS: 561621 Set-Aside: SBA Location: NE
• W9124G26CBARRACKS
  Agency: DEPT OF DEFENSE Posted: Oct 16, 2026 Due: Nov 17, 2026 NAICS: 561621 Set-Aside: SBA Location: AL
• Fire Protection Services at USCG Air Station Sacramento
  Agency: HOMELAND SECURITY, DEPARTMENT OF Posted: Oct 15, 2026 Due: Oct 30, 2026 NAICS: 561621 Location: CA
• Security Gate Maintenance and Repair Services Aberdeen Test Center, Aberdeen Proving Ground, MD
  Agency: DEPT OF DEFENSE Posted: Oct 15, 2026 Due: Nov 2, 2026 NAICS: 561621 Set-Aside: NONE Location: MD

Data sourced from SAM.gov. Updated daily. Last updated: October 27, 2026.