01 / NAICS Market Profile
NAICS 561621 Security Systems Services (Except Locksmiths) Federal Contracts
North American Industry Classification System code 561621
Federal contract activity classified under Security Systems Services (Except Locksmiths) across FY 2019–FY 2025. Net obligations include both new obligations and subsequent deobligations.
02 / Market Size
How large is the NAICS 561621 federal market?
03 / Spending Trend
NAICS 561621 contract spending by fiscal year
Annual obligations, activity, and participation across the same FY 2019–FY 2025 profile window.
Latest closed fiscal year$783.59M
FY 2025| Fiscal year | Obligations | Actions | Vendors | Customers | Change |
|---|---|---|---|---|---|
| FY 2019 | $684.75M | 6,946 | 1,128 | 115 | — |
| FY 2020 | $655.89M | 6,697 | 1,132 | 110 | −4.2% |
| FY 2021 | $665.02M | 6,348 | 1,116 | 111 | +1.4% |
| FY 2022 | $743.96M | 6,629 | 1,099 | 115 | +11.9% |
| FY 2023 | $757.95M | 6,264 | 1,101 | 111 | +1.9% |
| FY 2024 | $805.37M | 6,010 | 1,098 | 122 | +6.3% |
| FY 2025 | $783.59M | 5,820 | 1,045 | 117 | −2.7% |
04 / Top Federal Customers
Which federal agencies buy most in this industry?
Ranked by net obligations during FY 2019–FY 2025.
| Federal customer | Code | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|
| DEPT OF THE AIR FORCE | 5700 | $1.01B | 4,384 | 505 | 19.8% |
| DEPT OF THE NAVY | 1700 | $861.82M | 3,248 | 273 | 16.9% |
| OFFICE OF PROCUREMENT OPERATIONS | 7001 | $498.04M | 1,226 | 97 | 9.8% |
| DEPT OF THE ARMY | 2100 | $430.50M | 4,556 | 525 | 8.4% |
| U.S. MARSHALS SERVICE | 1544 | $334.44M | 5,909 | 27 | 6.6% |
| VETERANS AFFAIRS, DEPARTMENT OF | 3600 | $332.33M | 5,218 | 538 | 6.5% |
| WASHINGTON HEADQUARTERS SERVICES (WHS) | 97F5 | $247.08M | 1,038 | 19 | 4.8% |
| FEDERAL AVIATION ADMINISTRATION | 6920 | $197.61M | 1,182 | 60 | 3.9% |
| FEDERAL BUREAU OF INVESTIGATION | 1549 | $83.43M | 360 | 38 | 1.6% |
| U.S. CUSTOMS AND BORDER PROTECTION | 7014 | $79.23M | 433 | 71 | 1.6% |
05 / Contracting Offices
Which contracting offices buy in NAICS 561621?
Ranked by net obligations during FY 2019–FY 2025.
| Office | Code | Agency | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|---|
| FA8730 KESSEL RUN AFLCMC/HBBK | FA8730 | DEPT OF THE AIR FORCE | $554.35M | 855 | 26 | 10.9% |
| NAVFAC SYSTEMS AND EXP WARFARE CTR | N39430 | DEPT OF THE NAVY | $369.77M | 74 | 2 | 7.3% |
| WASHINGTON HEADQUARTERS SERVICES | HQ0034 | WASHINGTON HEADQUARTERS SERVICES (WHS) | $247.08M | 1,038 | 19 | 4.8% |
| 693KA8 SYSTEM OPERATIONS CONTRACTS | 693KA8 | FEDERAL AVIATION ADMINISTRATION | $191.99M | 782 | 5 | 3.8% |
| FPS WEST CCG | 70RFPW | OFFICE OF PROCUREMENT OPERATIONS | $187.51M | 288 | 16 | 3.7% |
| FA2381 FORCE PROTECTION AFLCMC/HBUK | FA2381 | DEPT OF THE AIR FORCE | $187.02M | 318 | 15 | 3.7% |
| US DOJ, USMS OFC SECURITY CONTRACTS | 15M200 | U.S. MARSHALS SERVICE | $152.46M | 3,500 | 9 | 3.0% |
| NAVAL SURFACE WARFARE CENTER | N64267 | DEPT OF THE NAVY | $131.27M | 78 | 8 | 2.6% |
| FPS EAST CCG DIV 4 ACQ DIV | 70RFP4 | OFFICE OF PROCUREMENT OPERATIONS | $120.58M | 380 | 38 | 2.4% |
| PAE STRATEGIC SYSTEMS PROGRAMS | N00030 | DEPT OF THE NAVY | $116.36M | 92 | 3 | 2.3% |
06 / Top Vendors
Which contractors lead the NAICS 561621 market?
| Vendor | Obligations | Actions | Customers | Market share | Latest activity |
|---|---|---|---|---|---|
| M. C. DEAN, INC. | $553.01M | 2,678 | 9 | 10.9% | Sep 30, 2025 |
| SERCO INC. | $495.42M | 97 | 1 | 9.7% | Sep 19, 2025 |
| JOHNSON CONTROLS SECURITY SOLUTIONS LLC | $346.27M | 6,324 | 45 | 6.8% | Sep 30, 2025 |
| TRIPLE CANOPY, INC. | $228.69M | 323 | 1 | 4.5% | Sep 30, 2025 |
| PARAGON SYSTEMS, INC. | $177.43M | 120 | 1 | 3.5% | Sep 30, 2025 |
| XATOR CORPORATION | $137.92M | 339 | 3 | 2.7% | Sep 30, 2025 |
| CACI INTERNATIONAL INC | $133.05M | 73 | 1 | 2.6% | Sep 5, 2025 |
| ADVANCED TECHNOLOGY SYSTEMS COMPANY, INC. (OF VIRGINIA) | $127.69M | 46 | 1 | 2.5% | Sep 10, 2025 |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | $110.62M | 78 | 2 | 2.2% | Sep 29, 2025 |
| CACI NSS, INC. | $101.67M | 144 | 1 | 2.0% | Sep 8, 2025 |
07 / Product and Service Mix
What products and services are purchased under NAICS 561621?
| PSC | Description | Obligations | Actions | Vendors | Share |
|---|---|---|---|---|---|
| J063 | MAINT/REPAIR/REBUILD OF EQUIPMENT- ALARM, SIGNAL, AND SECURITY DETECTION SYSTEMS | $858.44M | 8,973 | 818 | 16.8% |
| 6350 | MISCELLANEOUS ALARM, SIGNAL, AND SECURITY DETECTION SYSTEMS | $813.34M | 8,852 | 803 | 16.0% |
| J059 | MAINT/REPAIR/REBUILD OF EQUIPMENT- ELECTRICAL AND ELECTRONIC EQUIPMENT COMPONENTS | $568.49M | 587 | 77 | 11.2% |
| N063 | INSTALLATION OF EQUIPMENT- ALARM, SIGNAL, AND SECURITY DETECTION SYSTEMS | $536.95M | 7,216 | 648 | 10.5% |
| R499 | SUPPORT- PROFESSIONAL: OTHER | $422.41M | 1,400 | 87 | 8.3% |
| S206 | HOUSEKEEPING- GUARD | $415.76M | 548 | 30 | 8.2% |
| 5810 | COMMUNICATIONS SECURITY EQUIPMENT AND COMPONENTS | $186.41M | 995 | 244 | 3.7% |
| R430 | SUPPORT- PROFESSIONAL: PHYSICAL SECURITY AND BADGING | $170.00M | 825 | 84 | 3.3% |
| J012 | MAINT/REPAIR/REBUILD OF EQUIPMENT- FIRE CONTROL EQUIPMENT | $136.38M | 1,351 | 159 | 2.7% |
| R699 | SUPPORT- ADMINISTRATIVE: OTHER | $55.34M | 128 | 20 | 1.1% |
08 / Buying Pattern
How does the government buy in NAICS 561621?
| Common action type | Obligations | Actions |
|---|---|---|
| PURCHASE ORDER | $742.58M | 18,152 |
| DELIVERY ORDER | $2.78B | 17,097 |
| DEFINITIVE CONTRACT | $1.15B | 5,570 |
| BPA CALL | $420.40M | 3,895 |
09 / Recent Contract Awards
What was awarded most recently in NAICS 561621?
10 / Market Interpretation
How should contractors evaluate this market?
Start with the spending direction
Compare annual obligations with actions and vendor participation. Growth driven by only a few large actions represents a different opportunity from broad, recurring demand.
Follow the actual buyers
Move from federal customers to contracting offices. Offices reveal where acquisition responsibility and recurring purchasing activity are concentrated.
Measure accessible demand
Use competition, small-business participation, incumbent vendors, and PSC mix before treating the full $5.10B market as addressable.