Public Signal Data / Recompetes / NAICS 561621
Recompete radar · NAICS 561621
Security Systems Services: contracts expiring in the next 18 months
480 federal contracts coded NAICS 561621 (Security Systems Services), worth $1.31B combined, reach the end of their period of performance by 2028-02. Each one is a recompete a challenger can bid on — if they see it coming early enough. Largest incumbent: M. C. Dean, INC. ($281M expiring). Biggest buyer: Department of Defense ($738M).
Source: official USAspending.gov award data · data as of 2026-08-22, refreshed regularly · amounts are total contract value to date.
480 contractsexpiring by 2028-02 (min $250K)
$1.31Btotal incumbent contract value
295 / 441 / 480expiring in 6 / 12 / 18 months
Daily refreshvia GovCon Monitor on Apify
The list
Top 25 expiring NAICS 561621 contracts by value
Sorted by total contract value. Every row links to the official award record on
USAspending.gov. The actor returns the full set — all 480 contracts — with
days_until_expiry buckets and SAM.gov recompete-notice matching.
| Incumbent | Agency | Value | PoP end | State | Description / award |
|---|---|---|---|---|---|
| Advanced Technology Systems Company, INC. (Of Virginia) | Department of Defense Department of the Air Force | $113M | 2027-12-31 | VA | EGYPTIAN ARMAMENT AUTHORITY (EAA) MOBILE SURVEILLANCE SENSOR SECURITY (MS3) SYSTEM PHASE II FA873022C0017 ↗ |
| General Dynamics Mission Systems, INC. | Department of Defense Department of the Navy | $92M | 2027-01-14 | MA | FY24 PM, SYS ENG, & BUSINESS MGMT N0003024C1001 ↗ |
| Serco INC | Department of Defense Department of the Navy | $90M | 2026-12-01 | CA | THE PURPOSE OF THIS TASK ORDER IS TO AWARD THE ANNUAL SUSTAINMENT OF PUBLIC SAFETY SYSTEMS (PSS) FOR FY26 TO CNIC LOCATIONS WORLDWIDE. N3943026F0002 ↗ |
| Paragon Systems INC | Department of Homeland Security Office of Procurement Operations | $57M | 2026-09-30 | CA | ARMED PROTECTIVE SECURITY OFFICER (PSO) SERVICES FOR LOS ANGELES, CALIFORNIA AND SURROUNDING AREAS TASK ORDER AWARD FOR OPTION YEAR 3 70RFPW25FRW900036 ↗ |
| M. C. Dean, INC. | Department of Defense Washington Headquarters Services | $46M | 2026-12-16 | DC | FORCE PROTECTION TECHNOLOGY SUPPORT SERVICES HQ003422F0031 ↗ |
| M. C. Dean, INC. | Department of Defense Washington Headquarters Services | $41M | 2026-12-16 | DC | INTEGRATED SECURITY SERVICES CONTRACT (ISSC4) TO PROVIDE A TOTAL SYSTEM APPROACH FOR INTEGRATED ELECTRONIC AND PHYSICAL SECURITY SYSTEMS. HQ003422F0029 ↗ |
| M. C. Dean, INC. | Department of Defense Department of the Air Force | $40M | 2028-02-01 | VA | INTEGRATED BASE DEFENSE SECURITY SYSTEM (IBDSS) NEXT - WESTERN REGION FA873023F0006 ↗ |
| Johnson Controls Building Automation Systems, LLC | Department of Defense Department of the Air Force | $38M | 2027-02-09 | MD | INTEGRATED BASE DEFENSE SECURITY SYSTEM (IBDSS) NEXT - CENTRAL REGION FA873023F0008 ↗ |
| M. C. Dean, INC. | Department of Justice U.S. Marshals Service | $36M | 2026-09-26 | VA | 4003 ELECTRONIC SECURITY SYSTEM REPAIR NATIONWIDE DRAW DOWN BASED ON THE AVAILABILITY OF FY24 FUNDS 15M10624FA47MA008 ↗ |
| Olgoonik Solutions LLC | Department of Energy Department of Energy | $28M | 2026-11-02 | DC | TECHNICAL, TRAINING, ADMINISTRATIVE, ANALYTICAL, INSPECTION AND EQUIPMENT SUPPORT FOR OFFICE OF THE ASSOCIATE UNDER SECRETARY FOR ENVIRONME… 89243321CAU000003 ↗ |
| Chenega Integrated Security Solutions, LLC | Securities and Exchange Commission Securities and Exchange Commission | $26M | 2026-09-24 | DC | PROTECTIVE SERVICES (ARMED AND UNARMED GUARD SERVICES) FOR OSS 50310223F0199 ↗ |
| Vista Defense Technologies, LLC | Department of Defense Department of the Army | $19M | 2026-11-30 | TX | PROVIDE SERVICES FOR SECURITY MAINTENANCE SERVICES AT BROOKE ARMY MEDICAL CENTER, JBSA-FT HOOD, TX. W81K0421C0005 ↗ |
| First Coast Security Solutions, INC. | Department of Homeland Security Office of Procurement Operations | $19M | 2027-08-31 | CA | ARMED PROTECTIVE SECURITY OFFICER (PSO) SERVICES FOR LOS ANGELES, CALIFORNIA AND SURROUNDING AREAS BASE AWARD FOR RECURRING SERVICES. 70RFPW26FRW900017 ↗ |
| Electronic Systems Services INC | Department of the Treasury Bureau of Engraving and Printing | $16M | 2027-05-31 | TX | WCF SECURITY EQUIPMENT & DEVICES OPERATIONS AND MAINTENANCE (O&M) 2031ZA24C00298 ↗ |
| M. C. Dean, INC. | Department of Justice U.S. Marshals Service | $16M | 2026-09-26 | VA | 4007 PROGRAM MANAGEMENT SUPPORT (FFP) 15M10624FA47MA010 ↗ |
| Lbyd Federal, LLC | Department of Defense Department of the Navy | $11M | 2026-09-15 | DC | ALARM MONITORING SUPPORT N0018921CZ057 ↗ |
| Birdi Systems, INC. | Department of Health and Human Services Food and Drug Administration | $11M | 2027-01-27 | MD | MDI/SOFTWARE HOUSE SECURITY INSTALLATION AND MAINTENANCE - TASK ORDER 3 75F40125F19003 ↗ |
| Bcf Solutions, INC. | Department of Defense Department of the Air Force | $10M | 2026-12-31 | VA | GLOBAL AIRCREW STRATEGIC NETWORK TERMINALS FULL OPERATIONAL CAPABILITY INTRUSION DETECTION SECURITY SYSTEM DESIGN AND INSTALL FA873021F0046 ↗ |
| Systems Engineering INC | Department of Defense Missile Defense Agency | $9.7M | 2027-04-30 | VA | ELECTRONIC SECURITY SYSTEM MAINTENANCE HQ086722F0005 ↗ |
| Chenega Integrated Security Solutions, LLC | Department of Defense Missile Defense Agency | $9.5M | 2027-04-03 | VA | GUARD FORCE SERVICE MILMF HQ085122F0007 ↗ |
| M. C. Dean, INC. | Department of Transportation Federal Aviation Administration | $9.0M | 2027-08-14 | DC | PHYSICAL SECURITY ENTERPRISE MANAGEMENT SYSTEM (PSEMS) PHASES 1 AND 2 693KA820F00051 ↗ |
| Xator LLC | Department of Defense Department of the Air Force | $8.9M | 2027-02-28 | — | INTRUSION DETECTION SYSTEM (IDS) INSTALLATION OF EQUIPMENT, MATERIALS, AND INITIAL SPARES. FA238123FB003 ↗ |
| M. C. Dean, INC. | Department of Defense Washington Headquarters Services | $8.7M | 2027-02-14 | VA | PENTAGON OPERATIONS CENTER (POC) ALARM MONITORING HQ003423F0254 ↗ |
| Ptsi Managed Services INC | Smithsonian Institution Smithsonian Institution | $8.6M | 2026-12-31 | DC | TO NO. '0010422 AGAINST IDIQ '0010183 TO ASSIST THE IN MAINTAINING AND SUPPORTING THE OPS, ITS INTEGRATED, ENTERPRISE ELECTRONIC SECURITY S… 33330222FF0010422 ↗ |
| Birdi Systems, INC. | Department of Health and Human Services Food and Drug Administration | $8.1M | 2026-10-23 | MD | MDI/SOFTWARE HOUSE SECURITY INSTALLATION AND MAINTENANCE 75F40124F19002 ↗ |
By state
NAICS 561621 recompetes by place of performance
States with at least 3 tracked expiring contracts get their own page; smaller states are covered by the actor itself.
Get all 480 NAICS 561621 recompetes as data
One run of GovCon Monitor returns every expiring contract in this NAICS as flat JSON/CSV — incumbent, value, end date, days_until_expiry — at $0.003 per record. Schedule it daily and never miss an RFP window.