Top 42 Contractors in PSC AS11: Transportation R&D Services; Surface Transportation, Public Transit, and Rail; Basic Research, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC AS11: Transportation R&D Services; Surface Transportation, Public Transit, and Rail; Basic Research, FY2025.
The top 10 won 78% of PSC AS11 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $51,993,742 Net of deobligations, by contracts coded PSC AS11
- Contractors
- 46 Parent companies with an obligation
- Largest contractor
- Noblis, Inc. $17.1 million, 29.3% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 42 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Noblis, Inc.
Top agencies
|
$17,119,001 | ||
| 2 |
Ensco Inc.
Top agencies
|
$11,530,305 | ||
| 3 |
ICF International Inc.
Top agencies
|
$3,913,390 | ||
| 4 |
AGR LLC
Top agencies
|
$2,583,174 | ||
| 5 | $2,563,480 | |||
| 6 | $2,351,075 | |||
| 7 | $1,475,398 | |||
| 8 |
Path-Tec LLC
Top agencies
|
$1,334,103 | ||
| 9 | $1,236,354 | |||
| 10 |
Sharma & Associates Inc
Top agencies
|
$1,228,687 | ||
| 11 |
The Mitre Corporation
Top agencies
|
$991,715 | ||
| 12 | $968,895 | |||
| 13 |
Virginia Commonwealth University Health System Authority
Top agencies
|
$968,878 | ||
| 14 | $952,484 | |||
| 15 |
Leidos Holdings, Inc.
Top agencies
|
$920,971 | ||
| 16 |
Aerovironment, Inc.
Top agencies
|
$575,283 | ||
| 17 | $542,307 | |||
| 18 | $499,909 | |||
| 19 | $471,291 | |||
| 20 | $468,000 | |||
| 21 |
University of South Carolina
Top agencies
|
$360,187 | ||
| 22 |
Vtech B.V.
Top agencies
|
$358,400 | ||
| 23 | $324,411 | |||
| 24 |
Southern Methodist University Inc
Top agencies
|
$306,200 | ||
| 25 | $273,004 | |||
| 26 |
Virginia Polytechnic Institute & State University
Top agencies
|
$253,878 | ||
| 27 | $244,364 | |||
| 28 |
Thornton Tomasetti, Inc.
Top agencies
|
$225,001 | ||
| 29 | $217,254 | |||
| 30 |
WSP USA Solutions Inc
Top agencies
|
$147,544 | ||
| 31 | $129,109 | |||
| 32 | $123,819 | |||
| 33 | $123,771 | |||
| 34 | $107,333 | |||
| 35 | $91,352 | |||
| 36 | $80,000 | |||
| 37 |
University of Illinois
Top agencies
|
$56,481 | ||
| 38 | $27,750 | |||
| 39 |
Hptech Inc.
Top agencies
|
$16,000 | ||
| 40 | $12,920 | |||
| 41 | $10,436 | |||
| 42 | $10,000 |
Show 17 more
42 of 46 contractors listed here. See the rest on GovTribe.
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $58.4 million obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 PSC AS11 contractors in Aug 2025–Jul 2026?
1. Noblis, Inc. ($17.1M), 2. Ensco Inc. ($11.5M), 3. ICF International Inc. ($3.91M), 4. AGR LLC ($2.58M), 5. Duos Technologies, Inc. ($2.56M), 6. Intelligent Transportation Society of America (Its America) ($2.35M), 7. Booz Allen Hamilton Holding Corporation ($1.48M), 8. Path-Tec LLC ($1.33M), 9. Transportation Technology Center, Inc. ($1.24M), 10. Sharma & Associates Inc ($1.23M).
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