Top 54 Contractors in PSC C1EB: Architect and Engineering – Construction: Maintenance 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 C1EB: Architect and Engineering – Construction: Maintenance Buildings, FY2025.

The top 10 won 81% of PSC C1EB contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$42,551,377 Net of deobligations, by contracts coded PSC C1EB
Contractors
57 Parent companies with an obligation
Largest contractor
WSM Pacific Siop, A Joint Venture $8.77 million, 20.3% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 54 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1 $8,769,035
Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; up 2 since Aug 2024–Jul 2025.
2 $6,336,678
Rank history: #20 in FY2021, #10 in FY2022, not on the FY2023–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3 $6,227,644
Rank history: not on the FY2021 list, #1 in FY2022, #3 in FY2023, #3 in FY2024 and #2 in FY2025; up 1 since Aug 2024–Jul 2025.
4
Jacobs Engineering Group Inc. 2 awardees, including Jacobs Government Services Company
$4,915,806
Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; down 2 since Aug 2024–Jul 2025.
5 $2,207,385
Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #5 in FY2024 and #7 in FY2025; unchanged since Aug 2024–Jul 2025.
6 $1,731,812
Rank history: not on the FY2021–FY2022 lists, #4 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7 $1,374,087
Rank history: not on the FY2021 list, #9 in FY2022, #28 in FY2023, not on the FY2024 list and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8 $1,360,952
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9 $1,302,242
Rank history: #15 in FY2021, not on the FY2022 list, #20 in FY2023, #20 in FY2024 and #17 in FY2025; up 11 since Aug 2024–Jul 2025.
10 $923,497
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11 $767,783
Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12 $619,874
Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13 $595,708
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
14 $573,123
Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15
WSP USA Solutions Inc
$493,604
Rank history: not on the FY2021–FY2022 lists, #39 in FY2023, not on the FY2024 list and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16 $482,215
Rank history: not on the FY2021–FY2022 lists, #38 in FY2023, #17 in FY2024 and #22 in FY2025; up 6 since Aug 2024–Jul 2025.
17 $469,430
Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18 $451,258
Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19 $438,833
Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20 $383,167
Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #27 in FY2025; down 3 since Aug 2024–Jul 2025.
21 $304,763
Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22
Childs Engineering Corporation
$268,217
Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; up 9 since Aug 2024–Jul 2025.
23 $168,767
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
24 $167,720
Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25 $145,060
Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26 $129,482
Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; down 13 since Aug 2024–Jul 2025.
27 $105,149
Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28
Vector Resources Inc.
$102,381
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29 $86,890
Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #32 in FY2025; down 28 since Aug 2024–Jul 2025.
30 $85,550
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31 $76,343
Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
32 $72,875
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33 $58,423
Rank history: #29 in FY2021, #27 in FY2022, #48 in FY2023, not on the FY2024 list and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34 $54,985
Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; down 27 since Aug 2024–Jul 2025.
35 $45,136
Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #49 in FY2025; up 14 since Aug 2024–Jul 2025.
36 $35,698
Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
37 $33,460
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
38 $33,055
Rank history: #42 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39 $25,900
Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and not on the FY2025 list; down 5 since Aug 2024–Jul 2025.
40 $25,349
Rank history: not on the FY2021 list, #2 in FY2022, not on the FY2023 list, #10 in FY2024 and #46 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41 $24,000
Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #49 in FY2024 and #47 in FY2025; up 7 since Aug 2024–Jul 2025.
42 $23,978
Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43 $19,200
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44 $16,764
Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45 $16,308
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46 $15,641
Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
47 $14,146
Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
48 $13,760
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49 $13,607
Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50 $12,760
Rank history: not on the FY2021 list, #50 in FY2022, not on the FY2023 list, #58 in FY2024 and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51 $11,483
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52 $8,275
Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #35 in FY2025; down 42 since Aug 2024–Jul 2025.
53 $5,305
Rank history: not on the FY2021–FY2022 lists, #32 in FY2023, not on the FY2024 list and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54 $1,300
Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and not on the FY2025 list; down 3 since Aug 2024–Jul 2025.
Show 29 more

54 of 57 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 $43.2 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 C1EB contractors in Aug 2025–Jul 2026?

1. WSM Pacific Siop, A Joint Venture ($8.77M), 2. AECOM ($6.34M), 3. Emcor Group Inc. ($6.23M), 4. Jacobs Engineering Group Inc. ($4.92M), 5. Set Dis Ticaret Sanayi Petrol Tasimacilik Atik Tesisleri Bilisim VE Insaat Limited Sirketi ($2.21M), 6. GHD Setiadi Kaula Joint Venture ($1.73M), 7. Zapata Group, Inc. ($1.37M), 8. Citrine-Olsson JV LLC ($1.36M), 9. Hdr, Inc. ($1.3M), 10. Hunter Atlantic LLC ($923K).

On GovTribe

Research every contractor on this list

  • Every contract, task order and IDV they hold
  • Their subsidiaries, teammates and competitors
  • Open opportunities they're positioned for
  • Alerts when they win new work