NAICS codes › 561621
NAICS 561621 — Security Systems Services (Except Locksmiths): federal contracts
22 open federal contract opportunities classified under NAICS 561621 (Security Systems Services (Except Locksmiths)) on SAM.gov, refreshed nightly.
Open solicitations
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- Notice of Intent to Sole Source - Replacement Marine Fire Detection and Alarm System Motor Vessel Quincy
- Notice of Intent to Sole Source - Replacement Marine Fire Detection and Alarm System Motor Vessel Quincy
- J042--Fire Alarm System Monitoring and Programming INTENT TO SOLE SOURCE
- J063 Service and Software Updates to Security Access Control and Camera Systems Across Idaho/ Eastern Oregon VA Locations
- J--FIRE AND SECURITY ALARM MONITORING SERVICES FOR GO
- Corrective and Preventative Maintenance of Electronic Security Systems at the Ronald Reagan Building
- Fire Protection Services at USCG Air Station Sacramento
- H312--Fire Alarm and Testing Inspection FY 2027 Services Procurement - 541 Engineering - VAMC CLEVELAND
- Inspection of Fire Extinguishers and Suppression Systems for AMXG at Hill AFB, Utah
- Troubleshooting and repair of access control panels on the Superior National Forest
- Security Gate Maintenance and Repair Services Aberdeen Test Center, Aberdeen Proving Ground, MD
- IRS Intrusion Detection System, C. Clifton Young Federal Building & US Courthouse
- Enterprise Electronic Security Systems (ESS) Nationwide Operations, Maintenance, Integration, and Lifecycle Support
- J012-- Fire Alarm Suppression Maintenance & Repair Services
- Electronic Security Systems
- Tobyhanna Gates & Turnstiles
- Boise VA Security Equipment & Software Service Maintenance
- W9124G26CBARRACKS
- Fire Alarm BPA Fort Drum NY
- Integrated Security Services Contract 5
- Notice of Intent for Brand Name for Maintenance and Support for HUGS Patient Security System
- Naval Hospital Guam-Agana Expanded Badge Readers and Alarm Systems
Who buys NAICS 561621
| Agency | Obligations, 24 mo | Actions |
|---|---|---|
| Department of Defense (DoD) | $459.9M | 1,051 |
| Department of Homeland Security (DHS) | $146.9M | 257 |
| Department of Transportation (DOT) | $58.3M | 56 |
| Department of Justice (DOJ) | $57.7M | 233 |
| Department of Veterans Affairs (VA) | $56.0M | 353 |
| Department of Health and Human Services (HHS) | $26.2M | 36 |
| Department of the Interior (DOI) | $12.2M | 207 |
| Department of State | $10.3M | 278 |
| U.S. Agency for Global Media | $8.4M | 5 |
| Department of Commerce (DOC) | $7.7M | 23 |
Who wins NAICS 561621 work
| Contractor | Obligations, 24 mo | Awards |
|---|---|---|
| SERCO INC | $204.4M | 8 |
| M. C. DEAN, INC. | $98.6M | 148 |
| FIRST COAST SECURITY SOLUTIONS, INC. | $59.2M | 3 |
| TRIPLE CANOPY INC | $43.4M | 8 |
| CACI INTERNATIONAL INC | $36.7M | 1 |
| JOHNSON CONTROLS SECURITY SOLUTIONS LLC | $36.6M | 180 |
| SCDATACOM, LLC | $24.2M | 34 |
| BIRDI SYSTEMS, INC. | $18.1M | 1 |
| JOHNSON CONTROLS BUILDING AUTOMATION SYSTEMS, LLC | $16.5M | 126 |
| MEDIA PLUMBING & HEATING INC | $12.7M | 56 |
NAICS 561621 contracts expiring in the next 18 months
866 contracts worth $1.2B. The largest:
| Incumbent | Buyer | What | Value | Ends | Est. solicitation | Record |
|---|---|---|---|---|---|---|
| ADVANCED TECHNOLOGY SYSTEMS COMPANY, INC. (OF VIRGINIA) | Air Force | 561621 Security Systems Services (Except Locksmiths) | $115.9M | 31 December 2027 | ~Q3 2027 | Details |
| SERCO INC | Navy | 561621 Security Systems Services (Except Locksmiths) | $101.2M | 01 December 2026 | Now / imminent | Details |
| M. C. DEAN, INC. | Washington Headquarters Services | 561621 Security Systems Services (Except Locksmiths) | $92.9M (14 orders) | 31 December 2026 | Now / imminent | Details |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | Navy | 561621 Security Systems Services (Except Locksmiths) | $63.8M | 14 January 2027 | Now / imminent | Details |
| M. C. DEAN, INC. | Air Force | 561621 Security Systems Services (Except Locksmiths) | $46.4M | 01 February 2028 | ~Q3 2027 | Details |
| JOHNSON CONTROLS BUILDING AUTOMATION SYSTEMS, LLC | Air Force | 561621 Security Systems Services (Except Locksmiths) | $42.8M | 09 February 2027 | Now / imminent | Details |
| OLGOONIK SOLUTIONS LLC | Department of Energy | 561621 Security Systems Services (Except Locksmiths) | $27.9M | 02 November 2026 | Now / imminent | Details |
| VISTA DEFENSE TECHNOLOGIES, LLC | Army | 561621 Security Systems Services (Except Locksmiths) | $18.9M | 30 November 2026 | Now / imminent | Details |
| BIRDI SYSTEMS, INC. | FDA | 561621 Security Systems Services (Except Locksmiths) | $18.1M | 27 January 2027 | Now / imminent | Details |
| JOHNSON CONTROLS SECURITY SOLUTIONS LLC | FEMA | 561621 Security Systems Services (Except Locksmiths) | $18.1M | 31 December 2026 | Now / imminent | Details |
Every expiring NAICS 561621 contract →
Contracts and task orders from USASpending.gov (FPDS) whose period of performance ends within 18 months, valued at $25K or more, excluding IDIQ ceilings and government-owned, contractor-operated facility contracts. Co-terminous orders from the same vendor, agency, NAICS and PSC ending in the same month are grouped. The solicitation date is an estimate (about six months before the contract ends): FedSift does not know whether a follow-on has been posted, so check SAM.gov.
Open solicitations by set-aside
| Set-aside | Open |
|---|---|
| Unrestricted (full and open) | 12 |
| Small business | 7 |
| SDVOSB | 2 |
| WOSB | 1 |
From the set-aside SAM.gov declares on each open notice.
Who counts as small under this code
SBA size standard for NAICS 561621: $22.5M annual receipts.
Each solicitation carries exactly one NAICS code, and that code — not a related one in the same family — decides who counts as small.
One code, chosen by the contracting officer, decides who counts as small. A related code in the same family does not qualify you, and the assignment itself can be appealed to SBA OHA.
Source: FAR 19.102, current as of 07 August 2026 · eCFR.
Is NAICS 561621 work a fit for your company?
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