In the last full year, federal agencies obligated $747.14 million across 5,580 award actions under NAICS 561621, for an average action value of $133,895.71. Spending was led by the Department of the Navy, the Department of the Air Force, and the Office of Procurement Operations, while M. C. DEAN, INC. and SERCO INC. were the largest vendors by obligated dollars.
NAICS Industry
NAICS 561621 Federal Contract Obligations (Last Year)
NAICS 561621 covers security systems services excluding locksmiths, including the federal procurement activity recorded over the last full year.
Annual figures reflect the last full year only and are based on the provided obligated amounts, award counts, and agency and vendor rankings.
NAICS Code
561621
Industry
SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS)
Total Obligated
747.14 million
747,138,099.10
Award Actions
5,580
Average Action Value
133,895.71
About NAICS 561621 federal contract activity
In the last full year, FPDS recorded $747.14 million in obligated spending across 5,580 awards under NAICS 561621, Security Systems Services (except Locksmiths). The average award value was $133,895.71, indicating a high-volume procurement profile with many comparatively small-to-mid-sized obligations. This category reflects recurring demand for security system installation, monitoring, and related services across federal accounts.
Agency demand and leading federal buyers
Department of the Navy led this NAICS with $185.16 million across 499 awards, followed by the Department of the Air Force with $142.23 million across 757 awards. Office of Procurement Operations ranked third at $66.93 million across 160 awards, while the Department of the Army and the Department of Veterans Affairs each obligated $62.25 million and $47.08 million, respectively, both with 651 awards. The agency mix shows broad federal use, with defense agencies accounting for the largest share of obligations.
Vendor concentration and leading contractors
M. C. DEAN, INC. was the top vendor by obligated value at $101.25 million across 381 awards, followed closely by SERCO INC. at $100.31 million across 13 awards. GENERAL DYNAMICS MISSION SYSTEMS, INC. recorded $53.83 million, while PARAGON SYSTEMS, INC. and CACI INTERNATIONAL INC. posted $45.44 million and $35.91 million, respectively. The vendor profile is concentrated among established systems integrators and security service firms, with some vendors receiving many smaller awards and others fewer but larger obligations.
Annual contract trend over the analysis window
The annual trend dataset shows $747.14 million obligated in 2025 across 5,580 awards, matching the last full-year total provided for this analysis window. Because only one year is available, this view supports a point-in-time summary rather than a multi-year growth assessment. Within that year, the procurement pattern remained highly distributed by award count while still concentrated among a small group of large vendors and defense-oriented agencies.
How to interpret this page
This summary is based on FPDS-observed obligations filtered to NAICS 561621 for the last full year. Agency and vendor rankings reflect total obligated dollars within the analysis window, and award counts represent the number of awards associated with each entity. The annual trend section uses the same FPDS scope and period and should be read as a single-year snapshot rather than a longitudinal series.
Top Agencies
SELECT
agency_id,
agency_name,
total_obligated,
award_count,
formatReadableQuantity(total_obligated) AS total_obligated_readable
FROM
(
SELECT
content__award__purchaserInformation__contractingOfficeAgencyID AS agency_id,
anyHeavy(content__award__purchaserInformation__contractingOfficeAgencyID__name) AS agency_name,
sum(content__award__dollarValues__obligatedAmount) AS total_obligated,
count() AS award_count
FROM fpds.data
WHERE
contract_type = 1
AND content__award__productOrServiceInformation__principalNAICSCode = '561621'
AND content__award__purchaserInformation__contractingOfficeAgencyID IS NOT NULL
AND content__award__purchaserInformation__contractingOfficeAgencyID != ''
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 1 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY agency_id
)
ORDER BY total_obligated DESC
LIMIT 10| Agency ID | Agency Name | Total Obligated | Readable | Award Actions |
|---|---|---|---|---|
| 1700 | DEPT OF THE NAVY | 185,157,913.74 | 185.16 million | 499 |
| 5700 | DEPT OF THE AIR FORCE | 142,225,756.02 | 142.23 million | 757 |
| 7001 | OFFICE OF PROCUREMENT OPERATIONS | 66,925,973.88 | 66.93 million | 160 |
| 2100 | DEPT OF THE ARMY | 62,253,096.52 | 62.25 million | 651 |
| 3600 | VETERANS AFFAIRS, DEPARTMENT OF | 47,083,802.43 | 47.08 million | 651 |
| 6920 | FEDERAL AVIATION ADMINISTRATION | 35,768,062.28 | 35.77 million | 215 |
| 1544 | U.S. MARSHALS SERVICE | 35,682,009.22 | 35.68 million | 380 |
| 97F5 | WASHINGTON HEADQUARTERS SERVICES (WHS) | 30,485,223.01 | 30.49 million | 141 |
| 1549 | FEDERAL BUREAU OF INVESTIGATION | 11,260,087.29 | 11.26 million | 34 |
| 7524 | FOOD AND DRUG ADMINISTRATION | 10,629,386.31 | 10.63 million | 6 |
Insight
Obligations in NAICS 561621 totaled $747.14 million across 5,580 awards in the last full year, with activity concentrated in a small set of agencies. The Department of the Navy led with $185.16 million, followed by the Department of the Air Force at $142.23 million and the Office of Procurement Operations at $66.93 million; these three agencies accounted for roughly half of total obligated dollars. Award volume was more dispersed than dollars, with the Department of the Air Force, Department of the Army, and Veterans Affairs each at 651 awards or more, while the Food and Drug Administration recorded only 6 awards despite $10.63 million obligated.
Top Vendors
SELECT
vendor_name,
cage_code,
total_obligated,
award_count,
formatReadableQuantity(total_obligated) AS total_obligated_readable
FROM
(
SELECT
content__award__vendor__vendorHeader__vendorName AS vendor_name,
anyHeavy(content__award__vendor__vendorSiteDetails__entityIdentifiers__cageCode) AS cage_code,
sum(content__award__dollarValues__obligatedAmount) AS total_obligated,
count() AS award_count
FROM fpds.data
WHERE
contract_type = 1
AND content__award__productOrServiceInformation__principalNAICSCode = '561621'
AND content__award__vendor__vendorHeader__vendorName IS NOT NULL
AND content__award__vendor__vendorHeader__vendorName != ''
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 1 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY vendor_name
)
ORDER BY total_obligated DESC
LIMIT 10| Vendor | CAGE Code | Total Obligated | Readable | Award Actions |
|---|---|---|---|---|
| M. C. DEAN, INC. | 3K773 | 101,247,556.44 | 101.25 million | 381 |
| SERCO INC. | 022Q2 | 100,314,186.03 | 100.31 million | 13 |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | 3CX85 | 53,825,124.00 | 53.83 million | 23 |
| PARAGON SYSTEMS, INC. | 69298 | 45,439,415.52 | 45.44 million | 41 |
| CACI INTERNATIONAL INC | 0HB52 | 35,914,454.38 | 35.91 million | 16 |
| JOHNSON CONTROLS BUILDING AUTOMATION SYSTEMS, LLC | 3GZH7 | 23,938,892.47 | 23.94 million | 144 |
| JOHNSON CONTROLS SECURITY SOLUTIONS LLC | 8B951 | 22,818,555.37 | 22.82 million | 527 |
| XATOR LLC | 393S5 | 20,601,553.61 | 20.60 million | 36 |
| TRIPLE CANOPY, INC. | 3K6X2 | 14,848,044.29 | 14.85 million | 39 |
| SCDATACOM, LLC | 6YJ00 | 12,166,865.58 | 12.17 million | 45 |
Insight
Obligations in NAICS 561621 totaled $747.14 million across 5,580 awards in the last full year, with an average award value of $133,895.71. The vendor base is moderately concentrated: M. C. DEAN, INC. and SERCO INC. each exceeded $100 million in obligated dollars, followed by a second tier led by GENERAL DYNAMICS MISSION SYSTEMS, INC. and PARAGON SYSTEMS, INC. Award volume is more distributed than dollar value, with JOHNSON CONTROLS SECURITY SOLUTIONS LLC and M. C. DEAN, INC. receiving the highest award counts among the top vendors.
Annual Trend
SELECT
year,
total_obligated,
award_count,
formatReadableQuantity(total_obligated) AS total_obligated_readable
FROM
(
SELECT
toYear(parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate)) AS year,
sum(content__award__dollarValues__obligatedAmount) AS total_obligated,
count() AS award_count
FROM fpds.data
WHERE
contract_type = 1
AND content__award__productOrServiceInformation__principalNAICSCode = '561621'
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 1 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY year
)
ORDER BY year DESC| Year | Total Obligated | Readable | Award Actions |
|---|---|---|---|
| 2025 | 747,138,099.10 | 747.14 million | 5,580 |
Insight
For the last full year, NAICS 561621 recorded $747.14 million in obligations across 5,580 awards, with an average award value of about $133.9 thousand. Because only one year is provided in the 1y window, no year-over-year trend can be assessed from this view. The volume of awards relative to total obligations indicates a broadly distributed obligation base rather than concentration in a small number of large awards.
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