PSC R425, Support-Professional: Engineering/Technical, shows steady federal demand across major civilian and defense buyers. The Department of the Air Force, Department of the Navy, and Department of the Army account for the largest shares of obligated dollars, while annual obligations in 2021-2025 remain clustered around the high-$20 billions to low-$30 billions.
PSC Code
PSC R425 Federal Contract Obligations (Last 10 Years)
PSC R425 covers support-professional engineering and technical services with 394,604 award actions and $267.01 billion obligated over the last 10 years.
This page summarizes FPDS-obligated awards for PSC R425 over the last 10 years and uses the provided readable and exact totals without additional estimates.
PSC Code
R425
PSC Description
SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL
Total Obligated
267.01 billion
267,005,311,061.93
Award Actions
394,604
Average Action Value
676,641.16
About PSC R425 federal contract activity
PSC R425, SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL, accounts for 267.01 billion in obligations across 394,604 awards over the last 10 years, with an average award value of 676,641.16. The profile reflects broad use across the federal portfolio, combining high-dollar engineering and technical support services with a very large volume of relatively smaller awards.
Agency demand and leading federal buyers
The Department of the Air Force is the largest obligating agency at 77.70 billion across 62,190 awards, followed by the Department of the Navy at 53.18 billion and the Department of the Army at 49.24 billion. Together, the three military departments account for the majority of obligations under this PSC, indicating concentrated demand within defense engineering and technical support activities. Outside DoD, USAID and the Federal Acquisition Service remain significant buyers, showing that the code is also used for civilian support requirements.
Vendor concentration and leading contractors
Chemonics International, Inc. leads all vendors with 11.13 billion in obligations across 474 awards, while The Aerospace Corporation follows with 7.84 billion. Science Applications International Corporation and Booz Allen Hamilton Inc. combine high obligation totals with large award counts, indicating recurring task-based support relationships. General Atomics Aeronautical Systems, Inc. rounds out the top five with 3.54 billion, reflecting substantial demand tied to specialized technical capabilities.
Annual contract trend over the analysis window
Annual obligations in the most recent five years have remained elevated and relatively stable, ranging from 27.64 billion in 2022 to a peak of 32.86 billion in 2024. Obligations then eased to 30.34 billion in 2025, while award counts stayed near 37,000 to 41,000 per year, suggesting persistent procurement volume with moderate year-to-year variation in dollar value.
How to interpret this page
This summary is based on FPDS obligations data for PSC R425 over the last 10 years. Agency and vendor rankings are ordered by total obligated amount, and annual trends reflect obligations and award counts recorded by fiscal year. Values are presented as reported in the source data and rounded for readability where noted.
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__productOrServiceCode = 'R425'
AND content__award__purchaserInformation__contractingOfficeAgencyID IS NOT NULL
AND content__award__purchaserInformation__contractingOfficeAgencyID != ''
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 10 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 |
|---|---|---|---|---|
| 5700 | DEPT OF THE AIR FORCE | 77,696,049,583.16 | 77.70 billion | 62,190 |
| 1700 | DEPT OF THE NAVY | 53,176,894,830.44 | 53.18 billion | 130,073 |
| 2100 | DEPT OF THE ARMY | 49,242,813,859.98 | 49.24 billion | 65,197 |
| 7200 | AGENCY FOR INTERNATIONAL DEVELOPMENT | 18,222,553,987.39 | 18.22 billion | 4,851 |
| 4732 | FEDERAL ACQUISITION SERVICE | 13,750,122,826.49 | 13.75 billion | 10,586 |
| 8000 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | 11,112,687,475.54 | 11.11 billion | 9,564 |
| 6920 | FEDERAL AVIATION ADMINISTRATION | 8,680,730,067.48 | 8.68 billion | 22,642 |
| 97AK | DEFENSE INFORMATION SYSTEMS AGENCY (DISA) | 4,505,276,257.95 | 4.51 billion | 8,879 |
| 97JC | MISSILE DEFENSE AGENCY (MDA) | 4,228,980,992.04 | 4.23 billion | 2,882 |
| 8900 | ENERGY, DEPARTMENT OF | 3,842,161,582.71 | 3.84 billion | 7,201 |
Insight
Over the last 10 years, PSC R425 obligations totaled $267.01 billion across 394,604 awards, indicating a high-volume, widely distributed engineering/technical support spend. The Department of the Air Force led by obligation value at $77.70 billion, followed by the Department of the Navy at $53.18 billion and the Department of the Army at $49.24 billion; together, these three agencies accounted for the majority of obligations in this PSC. Outside the Department of Defense, obligations were materially smaller and more dispersed, with AID at $18.22 billion, the Federal Acquisition Service at $13.75 billion, and NASA at $11.11 billion.
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,
ifNull(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__productOrServiceCode = 'R425'
AND content__award__vendor__vendorHeader__vendorName IS NOT NULL
AND content__award__vendor__vendorHeader__vendorName != ''
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 10 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY
vendor_name,
content__award__vendor__vendorSiteDetails__entityIdentifiers__cageCode
)
ORDER BY total_obligated DESC
LIMIT 10| Vendor | CAGE Code | Total Obligated | Readable | Award Actions |
|---|---|---|---|---|
| CHEMONICS INTERNATIONAL, INC | 3DNC8 | 11,129,433,495.93 | 11.13 billion | 474 |
| THE AEROSPACE CORPORATION | 12782 | 7,837,015,152.78 | 7.84 billion | 639 |
| SCIENCE APPLICATIONS INTERNATIONAL CORPORATION | 6XWA8 | 7,524,558,193.11 | 7.52 billion | 9,702 |
| BOOZ ALLEN HAMILTON INC. | 17038 | 5,852,530,851.81 | 5.85 billion | 6,143 |
| GENERAL ATOMICS AERONAUTICAL SYSTEMS, INC. | 0YJB5 | 3,541,811,485.57 | 3.54 billion | 345 |
| TORCH TECHNOLOGIES INC | 3CBV3 | 2,973,984,315.04 | 2.97 billion | 2,731 |
| PARSONS GOVERNMENT SERVICES INC. | 1BVK6 | 2,900,342,570.02 | 2.90 billion | 2,862 |
| THE MITRE CORPORATION | 4B080 | 2,779,964,154.13 | 2.78 billion | 330 |
| LOCKHEED MARTIN CORPORATION | 04236 | 2,723,520,190.84 | 2.72 billion | 368 |
| JT4, LLC | 7DS14 | 2,612,002,837.46 | 2.61 billion | 384 |
Insight
Over the last 10 years, PSC R425 obligations total $267.01 billion across 394,604 awards, with an average award value of about $676.6 thousand. Spending is concentrated among a small set of vendors: CHEMONICS INTERNATIONAL, INC leads with $11.13 billion, followed by THE AEROSPACE CORPORATION at $7.84 billion and SCIENCE APPLICATIONS INTERNATIONAL CORPORATION at $7.52 billion. The remaining top vendors each received between $2.61 billion and $5.85 billion, indicating a broad distribution of obligations among large incumbent contractors rather than reliance on a single vendor.
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__productOrServiceCode = 'R425'
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) >= toStartOfYear(now()) - INTERVAL 10 YEAR
AND parseDateTimeBestEffortOrNull(content__award__relevantContractDates__signedDate) < toStartOfYear(now())
GROUP BY year
)
ORDER BY year DESC| Year | Total Obligated | Readable | Award Actions |
|---|---|---|---|
| 2025 | 30,340,512,793.99 | 30.34 billion | 37,183 |
| 2024 | 32,861,369,608.35 | 32.86 billion | 39,685 |
| 2023 | 30,694,976,942.24 | 30.69 billion | 39,322 |
| 2022 | 27,644,122,133.81 | 27.64 billion | 39,008 |
| 2021 | 28,252,942,421.82 | 28.25 billion | 40,974 |
| 2020 | 27,983,005,785.95 | 27.98 billion | 39,861 |
| 2019 | 24,909,465,125.77 | 24.91 billion | 38,442 |
| 2018 | 24,807,260,130.32 | 24.81 billion | 40,346 |
| 2017 | 19,893,140,346.82 | 19.89 billion | 40,942 |
| 2016 | 19,618,515,772.86 | 19.62 billion | 38,841 |
Insight
Over the last 10 years, PSC R425 obligated $267.01 billion across 394,604 awards, with annual obligations generally concentrated in the $19.62 billion to $32.86 billion range. Obligations increased from $19.62 billion in 2016 to a peak of $32.86 billion in 2024, then eased slightly to $30.34 billion in 2025, indicating sustained elevated spending after a multi-year rise. Award counts were comparatively stable, ranging from 37,183 to 40,974 per year, suggesting the growth in obligations was driven more by larger award values than by major changes in transaction volume.
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