Top 26 Contractors in PSC Z2PD: Repair or Alteration of Waste Treatment and Storage Facilities, Jul 2025–Jun 2026
Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe
The top 10 won 97% of PSC Z2PD contract dollars from July 2025 through June 2026
Ranking facts
- Contract obligations
- $72,325,291 Net of deobligations, by contracts coded PSC Z2PD
- Contractors
- 26 Parent companies with an obligation
- Largest contractor
- Tutor Perini Corporation $42.3 million, 58.0% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 26 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Tutor Perini Corporation
Top agencies
|
$42,272,439 | ||
| 2 |
CMS Corporation
Top agencies
|
$13,113,382 | ||
| 3 |
Nippi Kosan Co. Ltd.
Top agencies
|
$6,564,014 | ||
| 4 | $3,288,097 | |||
| 5 | $1,534,403 | |||
| 6 |
North Star Construction and Engineering Inc.
Top agencies
|
$1,220,348 | ||
| 7 | $1,159,065 | |||
| 8 | $824,858 | |||
| 9 | $321,525 | |||
| 10 | $311,074 | |||
| 11 |
SKE Support Services GMBH
Top agencies
|
$289,121 | ||
| 12 |
Yamaki Co., Ltd.
Top agencies
|
$277,965 | ||
| 13 | $263,369 | |||
| 14 | $262,983 | |||
| 15 | $214,127 | |||
| 16 | $133,157 | |||
| 17 | $106,665 | |||
| 18 | $98,431 | |||
| 19 |
Shape Construction Inc
Top agencies
|
$62,124 | ||
| 20 |
Civil Works Contracting LLC
Top agencies
|
$55,938 | ||
| 21 |
A-Plus K&K JV Inc.
Top agencies
|
$53,480 | ||
| 22 |
Sescenti LLC
Top agencies
|
$50,000 | ||
| 23 | $44,514 | |||
| 24 |
J Ranck Electric Inc.
Top agencies
|
$4,925 | ||
| 25 | $4,100 | |||
| 26 | $3,581 |
Show all 26
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 $72.8 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. 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 Jul 2024–Jun 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 FY2023, #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 Z2PD contractors in Jul 2025–Jun 2026?
1. Tutor Perini Corporation ($42.3M), 2. CMS Corporation ($13.1M), 3. Nippi Kosan Co. Ltd. ($6.56M), 4. Pacific Federal Builders LLC ($3.29M), 5. Blue Spader Contractors Inc. ($1.53M), 6. North Star Construction and Engineering Inc. ($1.22M), 7. Hensel Phelps Construction Co ($1.16M), 8. Gulf Pacific Contracting LLC ($825K), 9. Pacific Design Builders, LLC ($322K), 10. Semper Environmental LLC ($311K).
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