NAICS code
Security Systems Services (except Locksmiths)
- NAICS code
- 561621
- Latest action
- Aug 8, 2026
Fewer than the minimum comparable awards under this NAICS code.
Largest awards under this code
| Award | Contractor | Agency | Place | First action | Current value |
|---|---|---|---|---|---|
| FA873022C0017 EGYPT MS3 PHASE II | ADVANCED TECHNOLOGY SYSTEMS COMPANY, INC. (OF VIRGINIA) | Department of Defense | VA | Mar 26, 2026 | $113,124,163 |
| N3943026F0002 THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDS IN THE AMOUNT OF $44,416,067.64 | SERCO INC | Department of Defense | CA | Mar 18, 2026 | $101,189,996 |
| N0003024C1001 INCREMENTALLY FUNDING CLINS 2601, 2602, 2603 | GENERAL DYNAMICS MISSION SYSTEMS, INC. | Department of Defense | MA | Mar 24, 2026 | $82,155,977 |
| DTFAWA17C00040 IGF::OT::IGF | KBR WYLE SERVICES, LLC | Department of Transportation | SC | Aug 29, 2017 | $61,768,424 |
| 70RFPW25FRW900036 ARMED PROTECTIVE SECURITY OFFICER (PSO) SERVICES FOR LOS ANGELES, CALIFORNIA AND SURROUNDING AREAS EXTEND PERIOD OF PERFORMANCE AND ADD HOURS AND FUNDS FOR SELECT POSTS. | PARAGON SYSTEMS INC | Department of Homeland Security | CA | Mar 19, 2026 | $57,152,340 |
| FA873023F0007 KEESLER OPT EXERCISE, MACDILL ECP | XATOR LLC | Department of Defense | VA | Mar 18, 2026 | $56,834,463 |
| FA873022F0038 FSP4 FUNDS REALIGNMENT | CACI INTERNATIONAL INC | Department of Defense | VA | Mar 30, 2026 | $51,883,863 |
| FA873023F0009 INTEGRATED BASE DEFENSE SECURITY SYSTEMS - USAFE REGION. THIS MODIFICATION CORRECTS A LINE OF ACCOUNTING AND ATTACHES A PERFORMANCE WORK STATEMENT (PWS) ADDENDUM | CACI INTERNATIONAL INC | Department of Defense | VA | Mar 10, 2026 | $50,510,935 |
| HQ003422F0031 FORCE PROTECTION TECHNOLOGY SUPPORT SERVICES | M. C. DEAN, INC. | Department of Defense | DC | Mar 24, 2026 | $49,927,847 |
| HQ003422F0029 INTEGRATED SECURITY SERVICES CONTRACT (ISSC4) TO PROVIDE A TOTAL SYSTEM APPROACH FOR INTEGRATED ELECTRONIC AND PHYSICAL SECURITY SYSTEMS. | M. C. DEAN, INC. | Department of Defense | DC | Mar 4, 2026 | $44,712,658 |
| FA873023F0008 INTEGRATED BASE DEFENSE SECURITY SYSTEM CENTRAL | JOHNSON CONTROLS BUILDING AUTOMATION SYSTEMS, LLC | Department of Defense | MD | Mar 16, 2026 | $44,647,082 |
| FA873023F0006 F.E. WARREN PERIOD OF PERFORMANCE EXTENSION AND REVISE SECTION A: TOTAL CONTRACT VALUE AND OBLIGATION VALUE | M. C. DEAN, INC. | Department of Defense | VA | Mar 3, 2026 | $43,170,558 |
| 89243321CAU000003 THE PURPOSE OF THIS MODIFICATION IS TO PROVIDE INCREMENTAL FUNDING. | OLGOONIK SOLUTIONS LLC | Department of Energy | DC | Apr 10, 2026 | $36,876,116 |
| FA238125FB008 PROVIDE TECHNICAL AND MANAGEMENT SUPPORT TO MAINTAIN CONTINUOUS IN-THEATER OPERATIONAL READINESS OF USAFE-AFAFRICA AND USAFCENT EXPEDITIONARY TACTICAL AUTOMATED SECURITY SYSTEM, FIXED-SITE SECURITY SYSTEMS WITHIN THE USAFE-AFAFRICA AND USAFCENT | CACI INTERNATIONAL INC | Department of Defense | — | Mar 24, 2026 | $36,856,659 |
| 15M10624FA47MA008 FUNDING INCREASE MISSION CRITICAL: REPAIR OF PHYSICAL SECURITY SYSTEMS AND COUNTERMEASURES, SAFEGUARDING THE FEDERAL JUDICIAL PROCESS, INCLUDING PROTECTING JUDGES, AND COURT PERSONNEL AND PUBLIC SAFETY. | M. C. DEAN, INC. | Department of Justice | VA | Mar 25, 2026 | $36,241,963 |
| 70RFPW22FRW900029 ARMED PROTECTIVE SECURITY OFFICER (PSO) SERVICES FOR LOS ANGELES, CA AND SURROUNDING AREAS FY23 BASE TASK ORDER AWARD FOR RECURRING SERVICES | FIRST COAST SECURITY SOLUTIONS, INC. | Department of Homeland Security | CA | Sep 19, 2022 | $35,051,102 |
| 50310223F0199 PROTECTIVE SERVICES (ARMED AND UNARMED GUARD SERVICES) FOR OSS | CHENEGA INTEGRATED SECURITY SOLUTIONS, LLC | Securities and Exchange Commission | DC | Jul 24, 2026 | $26,025,994 |
| 2031ZA24C00298 WCF SECURITY EQUIPMENT & DEVICES OPERATIONS AND MAINTENANCE (O&M). MOD P00003 - INCORPORATES MONTHLY WORKFORCE REPORT REQUIREMENT. | ELECTRONIC SYSTEMS SERVICES INC | Department of the Treasury | TX | Mar 10, 2026 | $20,870,730 |
| FA873022F0021 CORRECTING MULTI-FUNDED SCLINS | CACI INTERNATIONAL INC | Department of Defense | VA | Mar 27, 2026 | $18,101,699 |
| 15M10624FA47MA010 FUNDING INCREASE/POP EXTENSION. MISSION CRITICAL: REPAIR OF PHYSICAL SECURITY SYSTEMS AND COUNTERMEASURES, SAFEGUARDING THE FEDERAL JUDICIAL PROCESS, INCLUDING PROTECTING JUDGES, AND COURT PERSONNEL AND PUBLIC SAFETY. | M. C. DEAN, INC. | Department of Justice | VA | Mar 25, 2026 | $15,926,106 |
| 70RFPW23FRW900026 ARMED PROTECTIVE SECURITY OFFICER (PSO) SERVICES THROUGHOUT LOS ANGELES, CA AND THE SURROUNDING AREAS AWARD FOR FY24 RECURRING - SOCIAL SECURITY ADMINISTRATION (SSA)+ TASK ORDER | FIRST COAST SECURITY SOLUTIONS, INC. | Department of Homeland Security | CA | Sep 13, 2023 | $15,021,033 |
| 693KA826F00085 PSEMS2 MIGRATION PART 3 (WP 2025-WA-004, MOD 01) | M. C. DEAN, INC. | Department of Transportation | VA | Jun 4, 2026 | $14,675,337 |
| H9224021F0027 EXERCISE OPTION 52.217-8 (3 MONTHS) | TROFHOLZ TECHNOLOGIES, INC. | Department of Defense | CA | Mar 16, 2026 | $14,479,264 |
| HQ086722F0005 ELECTRONIC SECURITY SYSTEM MAINTENANCE | SYSTEMS ENGINEERING INC | Department of Defense | VA | Mar 31, 2026 | $14,409,666 |
| 70FA6023F00000033 THE PURPOSE OF THIS BPA IS TO PROVIDE BRIDGE SERVICES FOR EXPIRING BPA CONTRACT HSFE50-17-A-0006. | JOHNSON CONTROLS SECURITY SOLUTIONS LLC | Department of Homeland Security | DC | Apr 2, 2026 | $13,379,751 |
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Figures on this page are computed from public federal award records. Numbers are never estimated or generated; where a figure is withheld, the reason is stated rather than filled in.
Totals cover awards where the government recorded this NAICS code. Codes are taken as reported; awards are never reclassified into a different code.
- 1Awards are grouped by the NAICS code the government recorded on the award, taken from USAspending.gov and last refreshed Aug 10, 2026. Miscoded awards stay miscoded here; we do not reassign codes.