Top 37 Contractors in PSC C1JA: Architect and Engineering – Construction: Museums and Exhibition Buildings, 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 C1JA: Architect and Engineering – Construction: Museums and Exhibition Buildings, FY2025.
The top 10 won 82% of PSC C1JA contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $30,460,020 Net of deobligations, by contracts coded PSC C1JA
- Contractors
- 38 Parent companies with an obligation
- Largest contractor
- Siris LLC $7.64 million, 24.4% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 37 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Siris LLC
Top agencies
|
$7,640,136 | ||
| 2 |
Stantec Inc.
Top agencies
|
$5,005,544 | ||
| 3 |
Ewing Cole Inc.
Top agencies
|
$3,398,646 | ||
| 4 | $2,080,826 | |||
| 5 | $1,722,964 | |||
| 6 |
Smithgroup, Inc.
Top agencies
|
$1,462,888 | ||
| 7 |
Gwwo, Inc.
Top agencies
|
$1,262,977 | ||
| 8 | $1,137,852 | |||
| 9 | $1,120,457 | |||
| 10 |
Ziger / Snead LLP
Top agencies
|
$941,686 | ||
| 11 | $698,313 | |||
| 12 | $453,945 | |||
| 13 | $431,214 | |||
| 14 | $428,556 | |||
| 15 | $344,225 | |||
| 16 | $304,638 | |||
| 17 | $272,595 | |||
| 18 | $262,207 | |||
| 19 |
LJB Inc.
Top agencies
|
$237,475 | ||
| 20 | $230,826 | |||
| 21 |
GHD Inc.
Top agencies
|
$216,874 | ||
| 22 |
Parsons Corporation
Top agencies
|
$190,425 | ||
| 23 |
Chinook Systems, Inc.
Top agencies
|
$172,862 | ||
| 24 | $124,415 | |||
| 25 |
Page-Loring LLC
Top agencies
|
$109,252 | ||
| 26 |
Ware Malcomb
Top agencies
|
$90,723 | ||
| 27 | $78,840 | |||
| 28 |
WSP USA Solutions Inc
Top agencies
|
$66,122 | ||
| 29 |
Architrave P.C.
Top agencies
|
$65,785 | ||
| 30 |
NV5 Global, Inc.
Top agencies
|
$54,377 | ||
| 31 |
Perkins+Will, Inc.
Top agencies
|
$48,920 | ||
| 32 | $44,750 | |||
| 33 |
LF Consultech SA
Top agencies
|
$39,896 | ||
| 34 | $33,308 | |||
| 35 | $27,062 | |||
| 36 | $13,351 | |||
| 37 | $11,618 |
Show 12 more
37 of 38 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 $31.3 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 C1JA contractors in Aug 2025–Jul 2026?
1. Siris LLC ($7.64M), 2. Stantec Inc. ($5.01M), 3. Ewing Cole Inc. ($3.4M), 4. Mills & Schnoering Architects LLC ($2.08M), 5. Lendlease (Us) Construction Inc. ($1.72M), 6. Smithgroup, Inc. ($1.46M), 7. Gwwo, Inc. ($1.26M), 8. Quinn Evans Architects Inc. ($1.14M), 9. Hartman-Cox Architects LLP ($1.12M), 10. Ziger / Snead LLP ($942K).
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