Top 67 Contractors in PSC Z1KA: Maintenance of Dams, Jul 2025–Jun 2026
Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe
The top 10 won 88% of PSC Z1KA contract dollars from July 2025 through June 2026
Ranking facts
- Contract obligations
- $164,748,444 Net of deobligations, by contracts coded PSC Z1KA
- Contractors
- 69 Parent companies with an obligation
- Largest contractor
- Alberici Constructors Inc $68.2 million, 40.4% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 67 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Alberici Constructors Inc
Top agencies
|
$68,166,000 | ||
| 2 | $17,055,100 | |||
| 3 |
Occi Inc
Top agencies
|
$14,763,000 | ||
| 4 | $13,987,789 | |||
| 5 |
T1 Construction LLC
Top agencies
|
$9,191,344 | ||
| 6 |
Hardman Construction Inc.
Top agencies
|
$8,500,000 | ||
| 7 |
American Mine Services LLC
Top agencies
|
$7,461,047 | ||
| 8 |
Marine Diving Solutions LLC.
Top agencies
|
$5,276,420 | ||
| 9 |
Patterson Stevens Inc.
Top agencies
|
$2,376,250 | ||
| 10 |
Abhe & Svoboda, Inc.
Top agencies
|
$2,097,170 | ||
| 11 | $2,063,000 | |||
| 12 |
Schuman Electric LLC
Top agencies
|
$1,878,000 | ||
| 13 |
Mcmillen, Inc.
Top agencies
|
$1,723,588 | ||
| 14 |
Marine Solutions Inc.
Top agencies
|
$1,388,905 | ||
| 15 | $1,236,368 | |||
| 16 |
Blue Frog Roofing Limited
Top agencies
|
$1,116,246 | ||
| 17 |
Slayden Constructors Inc
Top agencies
|
$949,528 | ||
| 18 | $772,000 | |||
| 19 |
Reel COH Inc.
Top agencies
|
$732,964 | ||
| 20 | $659,500 | |||
| 21 |
Graylee Construction LLC
Top agencies
|
$631,074 | ||
| 22 |
Wayne Crouse Inc.
Top agencies
|
$470,688 | ||
| 23 | $464,774 | |||
| 24 |
Unico Mechanical Corp.
Top agencies
|
$367,782 | ||
| 25 |
Mik-Lill Enterprise, LLC
Top agencies
|
$351,575 | ||
| 26 | $279,306 | |||
| 27 |
Cardinal Pump Company
Top agencies
|
$272,149 | ||
| 28 |
Legacy Grading LLC
Top agencies
|
$264,598 | ||
| 29 |
Alltech Engineering Corp
Top agencies
|
$258,480 | ||
| 30 |
B.T. Adams LLC
Top agencies
|
$225,000 | ||
| 31 |
MBX Builders LLC
Top agencies
|
$224,052 | ||
| 32 |
Aim High Construction LLC
Top agencies
|
$215,670 | ||
| 33 | $215,000 | |||
| 34 |
Warfeather, LLC
Top agencies
|
$197,000 | ||
| 35 | $186,200 | |||
| 36 |
The Kerry Company, Inc.
Top agencies
|
$175,926 | ||
| 37 |
ACS Fencing Inc.
Top agencies
|
$151,490 | ||
| 38 | $149,277 | |||
| 39 | $125,000 | |||
| 40 | $113,992 | |||
| 41 |
Federal Contracts LLC
Top agencies
|
$103,864 | ||
| 42 |
Tier 1 Management LLC
Top agencies
|
$95,574 | ||
| 43 |
Trang Construction Co.
Top agencies
|
$78,568 | ||
| 44 |
Johnson Machine Works, Inc.
Top agencies
|
$70,700 | ||
| 45 | $66,923 | |||
| 46 |
Eaton Corporation
Top agencies
|
$65,438 | ||
| 47 |
Ruhrpumpen Inc.
Top agencies
|
$60,840 | ||
| 48 |
Nascence Group LLC
Top agencies
|
$48,346 | ||
| 49 |
GPM Inc
Top agencies
|
$37,565 | ||
| 50 |
Atlantium Technologies Ltd
Top agencies
|
$33,063 | ||
| 51 | $27,160 | |||
| 52 | $26,070 | |||
| 53 |
Govcrest Inc.
Top agencies
|
$25,850 | ||
| 54 | $25,350 | |||
| 55 |
JLS Green Solutions LLC
Top agencies
|
$24,290 | ||
| 56 | $20,299 | |||
| 57 | $16,775 | |||
| 58 |
DMT Foam, Inc.
Top agencies
|
$14,000 | ||
| 59 | $13,203 | |||
| 60 |
Transco Industries, Inc.
Top agencies
|
$11,448 | ||
| 61 |
Rymarc Construction Inc.
Top agencies
|
$10,135 | ||
| 62 |
Techknowserv Corp
Top agencies
|
$10,020 | ||
| 63 | $9,591 | |||
| 64 |
Tech O. R., LLC
Top agencies
|
$6,365 | ||
| 65 |
Force Inspection, LLC
Top agencies
|
$2,315 | ||
| 66 |
DB Netz AG Regionalnetz Oberpfalz
Top agencies
|
$1,634 | ||
| 67 |
Heritage Services LLC
Top agencies
|
$1,332 |
Show 42 more
67 of 69 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 $169 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 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 Z1KA contractors in Jul 2025–Jun 2026?
1. Alberici Constructors Inc ($68.2M), 2. Allison Park Contractors, Inc. ($17.1M), 3. Occi Inc ($14.8M), 4. Koontz Electric Company, Incorporated ($14M), 5. T1 Construction LLC ($9.19M), 6. Hardman Construction Inc. ($8.5M), 7. American Mine Services LLC ($7.46M), 8. Marine Diving Solutions LLC. ($5.28M), 9. Patterson Stevens Inc. ($2.38M), 10. Abhe & Svoboda, Inc. ($2.1M).
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