Top 27 Contractors in PSC Z1KB: Maintenance of Canals, FY2021

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 88% of FY2021 PSC Z1KB contract dollars

Ranking facts

Contract obligations
$155,401,907 Net of deobligations, by contracts coded PSC Z1KB
Contractors
30 Parent companies with an obligation
Largest contractor
The Dutra Group $40.2 million, 23.1% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 27 rows as CSV

Full ranking

Rank Contractor Net obligations Share Trend
1 $40,224,934
Rank history: #4 in FY2023, #18 in FY2024 and #4 in FY2025; up 6 since FY2020.
2 $39,484,811
Rank history: not on the FY2023–FY2025 lists; up 8 since FY2020.
3
Encore Dredging Founding Partners LLC Through Inland Dredging Company, L.L.C.
$27,134,544
Rank history: #9 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
4
Kokosing Construction Company Inc. Through Construction Co Corman Kokosing
$9,156,050
Rank history: #6 in FY2023, #5 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
5 $8,858,460
Rank history: not on the FY2023–FY2025 lists; up 29 since FY2020.
6 $7,674,136
Rank history: not on the FY2023–FY2025 lists; up 29 since FY2020.
7 $5,530,457
Rank history: not on the FY2023 list, #21 in FY2024 and not on the FY2025 list; down 1 since FY2020.
8
Orion Marine Group Inc. Through Orion Marine Construction, Inc.
$5,469,287
Rank history: #2 in FY2023, #9 in FY2024 and not on the FY2025 list; down 7 since FY2020.
9 $5,456,527
Rank history: #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 5 since FY2020.
10 $4,489,365
Rank history: #21 in FY2023, #17 in FY2024 and not on the FY2025 list; up 2 since FY2020.
11 $3,878,868
Rank history: #5 in FY2023, #8 in FY2024 and #2 in FY2025; down 9 since FY2020.
12 $1,983,980
Rank history: #13 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
13 $1,794,997
Rank history: #16 in FY2023, #13 in FY2024 and #12 in FY2025; new, not ranked in FY2020.
14 $1,098,830
Rank history: not on the FY2023 list, #14 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
15 $862,382
Rank history: not on the FY2023–FY2025 lists; new, not ranked in FY2020.
16 $458,174
Rank history: not on the FY2023–FY2025 lists; down 3 since FY2020.
17 $297,950
Rank history: not on the FY2023–FY2024 lists and #10 in FY2025; down 6 since FY2020.
18 $169,850
Rank history: not on the FY2023–FY2025 lists; new, not ranked in FY2020.
19 $118,140
Rank history: #24 in FY2023, #24 in FY2024 and #18 in FY2025; up 10 since FY2020.
20 $107,000
Rank history: #19 in FY2023, not on the FY2024 list and #19 in FY2025; new, not ranked in FY2020.
21 $63,000
Rank history: not on the FY2023–FY2025 lists; new, not ranked in FY2020.
22 $61,875
Rank history: not on the FY2023–FY2025 lists; new, not ranked in FY2020.
23 $21,500
Rank history: not on the FY2023–FY2025 lists; up 8 since FY2020.
24 $19,568
Rank history: not on the FY2023–FY2025 lists; up 6 since FY2020.
25 $17,365
Rank history: not on the FY2023–FY2025 lists; down 5 since FY2020.
26 $16,357
Rank history: #25 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
27 $10,100
Rank history: #27 in FY2023, #29 in FY2024 and #21 in FY2025; new, not ranked in FY2020.
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27 of 30 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 $174 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.
  • Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
  • Rank changes compare with FY2020. "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. The step from FY2020 takes the color of the rank change beside it.
  • 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 Z1KB contractors in FY2021?

1. The Dutra Group ($40.2M), 2. Manson Construction Co. ($39.5M), 3. Encore Dredging Founding Partners LLC ($27.1M), 4. Kokosing Construction Company Inc. ($9.16M), 5. Inland Dredging Company, L.L.C. ($8.86M), 6. Weeks Marine Inc. ($7.67M), 7. RLB Contracting, Inc. ($5.53M), 8. Orion Marine Group Inc. ($5.47M), 9. Great Lakes Dredge & Dock Corporation ($5.46M), 10. Eagle Engineering & Land Development, Inc. ($4.49M).

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