Top 86 Contractors in PSC Z2KA: Repair or Alteration of Dams, FY2025

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 71% of FY2025 PSC Z2KA contract dollars

Ranking facts

Contract obligations
$822,288,412 Net of deobligations, by contracts coded PSC Z2KA
Contractors
90 Parent companies with an obligation
Largest contractor
NW Construction, Inc. $226 million, 26.0% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 86 rows as CSV

Full ranking

Rank Contractor Net obligations Share Trend
1 $225,853,813
Rank history: #31 in FY2021, #3 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2 $112,100,000
Rank history: not on the FY2021–FY2024 lists; new.
3 $87,622,665
Rank history: not on the FY2021 list, #2 in FY2022, #22 in FY2023 and #4 in FY2024; up 1 since FY2024.
4 $60,406,688
Rank history: #22 in FY2021, #38 in FY2022, #12 in FY2023 and #8 in FY2024; up 4 since FY2024.
5 $24,861,901
Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 37 since FY2024.
6 $22,325,412
Rank history: #1 in FY2021, #74 in FY2022, #42 in FY2023 and #30 in FY2024; up 24 since FY2024.
7 $21,999,900
Rank history: #14 in FY2021, #28 in FY2022 and not on the FY2023–FY2024 lists; returned.
8
Knight Const. & Supply Inc
$20,969,594
Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and #2 in FY2024; down 6 since FY2024.
9 $18,800,268
Rank history: #11 in FY2021, #30 in FY2022, #8 in FY2023 and #6 in FY2024; down 3 since FY2024.
10 $18,169,068
Rank history: not on the FY2021–FY2024 lists; new.
11 $15,346,000
Rank history: not on the FY2021–FY2024 lists; new.
12 $15,317,151
Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; up 6 since FY2024.
13 $14,162,143
Rank history: #53 in FY2021, #26 in FY2022, #52 in FY2023 and #52 in FY2024; up 39 since FY2024.
14 $14,069,675
Rank history: not on the FY2021 list, #9 in FY2022, #21 in FY2023 and #50 in FY2024; up 36 since FY2024.
15 $10,464,000
Rank history: not on the FY2021–FY2024 lists; new.
16 $10,414,446
Rank history: not on the FY2021–FY2024 lists; new.
17
Nana Regional Corporation Inc. Through Jade Creek Construction LLC
$10,283,489
Rank history: not on the FY2021–FY2024 lists; new.
18 $10,265,327
Rank history: not on the FY2021–FY2024 lists; new.
19
Shimmick Construction Company Inc.
$7,577,350
Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 16 since FY2024.
20 $7,078,426
Rank history: #29 in FY2021, #15 in FY2022, #6 in FY2023 and #71 in FY2024; up 51 since FY2024.
21
Firelake Construction Inc
$7,015,411
Rank history: not on the FY2021–FY2024 lists; new.
22 $6,895,106
Rank history: not on the FY2021–FY2024 lists; new.
23 $6,258,715
Rank history: not on the FY2021–FY2024 lists; new.
24 $5,990,400
Rank history: #26 in FY2021, #32 in FY2022, not on the FY2023 list and #25 in FY2024; up 1 since FY2024.
25
Voith Hydro Inc
$5,733,476
Rank history: #15 in FY2021, #12 in FY2022, #40 in FY2023 and #15 in FY2024; down 10 since FY2024.
26 $5,733,214
Rank history: not on the FY2021–FY2024 lists; new.
27
American Bridge Holding Company Through American Bridge Company
$5,424,337
Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; down 5 since FY2024.
28 $4,694,321
Rank history: not on the FY2021–FY2024 lists; new.
29 $4,076,887
Rank history: not on the FY2021–FY2024 lists; new.
30
Andritz (USA) Inc. Through Andritz Hydro Corp
$4,014,064
Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 5 since FY2024.
31 $4,000,000
Rank history: not on the FY2021–FY2024 lists; new.
32 $3,421,974
Rank history: not on the FY2021–FY2024 lists; new.
33 $2,927,582
Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 24 since FY2024.
34 $2,876,410
Rank history: #17 in FY2021, #24 in FY2022, #20 in FY2023 and not on the FY2024 list; returned.
35
American Mine Services LLC Through AMS Industrial LLC
$2,686,488
Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; up 13 since FY2024.
36 $2,625,375
Rank history: not on the FY2021–FY2024 lists; new.
37 $2,201,000
Rank history: not on the FY2021–FY2024 lists; new.
38 $1,669,043
Rank history: not on the FY2021–FY2024 lists; new.
39
SNA Contracting LLC
$1,527,223
Rank history: not on the FY2021 list, #68 in FY2022 and not on the FY2023–FY2024 lists; returned.
40 $1,338,961
Rank history: #5 in FY2021, #10 in FY2022, #10 in FY2023 and #14 in FY2024; down 26 since FY2024.
41 $1,316,650
Rank history: #20 in FY2021, #69 in FY2022, #4 in FY2023 and #34 in FY2024; down 7 since FY2024.
42 $1,145,470
Rank history: not on the FY2021–FY2024 lists; new.
43 $1,004,959
Rank history: #8 in FY2021, #45 in FY2022, #9 in FY2023 and #29 in FY2024; down 14 since FY2024.
44 $930,000
Rank history: not on the FY2021–FY2024 lists; new.
45 $896,247
Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 38 since FY2024.
46 $786,958
Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; down 14 since FY2024.
47
Cedarville Engineering Group LLC
$748,225
Rank history: not on the FY2021–FY2024 lists; new.
48 $566,167
Rank history: not on the FY2021 list, #19 in FY2022, not on the FY2023 list and #24 in FY2024; down 24 since FY2024.
49 $559,176
Rank history: #81 in FY2021, not on the FY2022 list, #18 in FY2023 and #60 in FY2024; up 11 since FY2024.
50
Marine Diving Solutions LLC.
$545,807
Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 45 since FY2024.
51 $485,907
Rank history: #23 in FY2021, #18 in FY2022, #36 in FY2023 and #49 in FY2024; down 2 since FY2024.
52
Griffith Contracting LLC
$428,574
Rank history: not on the FY2021–FY2024 lists; new.
53 $422,577
Rank history: #36 in FY2021, #31 in FY2022 and not on the FY2023–FY2024 lists; returned.
54
Bauer Foundation Corp.
$419,201
Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 24 since FY2024.
55 $415,871
Rank history: not on the FY2021–FY2024 lists; new.
56 $378,000
Rank history: #69 in FY2021, not on the FY2022 list, #80 in FY2023 and not on the FY2024 list; returned.
57 $369,000
Rank history: #18 in FY2021, #17 in FY2022, #14 in FY2023 and #43 in FY2024; down 14 since FY2024.
58
Occi Inc
$367,951
Rank history: not on the FY2021–FY2024 lists; new.
59 $324,480
Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; down 22 since FY2024.
60 $266,339
Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; down 1 since FY2024.
61
Youderian Construction Inc
$238,086
Rank history: #41 in FY2021, #21 in FY2022, #49 in FY2023 and #26 in FY2024; down 35 since FY2024.
62 $231,477
Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; down 49 since FY2024.
63 $214,615
Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; down 52 since FY2024.
64 $156,720
Rank history: not on the FY2021–FY2024 lists; new.
65
Rock Supremacy LLC
$155,196
Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and not on the FY2024 list; returned.
66 $150,344
Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; down 28 since FY2024.
67 $141,309
Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; down 50 since FY2024.
68 $131,419
Rank history: not on the FY2021 list, #51 in FY2022, not on the FY2023 list and #69 in FY2024; up 1 since FY2024.
69 $127,639
Rank history: not on the FY2021 list, #60 in FY2022, #44 in FY2023 and #70 in FY2024; up 1 since FY2024.
70 $122,482
Rank history: not on the FY2021–FY2024 lists; new.
71 $116,782
Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #63 in FY2024; down 8 since FY2024.
72 $68,047
Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; down 56 since FY2024.
73 $60,000
Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; down 7 since FY2024.
74 $57,399
Rank history: not on the FY2021–FY2024 lists; new.
75
Sky Blue Builders LLC Through Sky Blue RME JV LLC
$51,648
Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; down 48 since FY2024.
76 $47,455
Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 32 since FY2024.
77 $41,509
Rank history: not on the FY2021–FY2024 lists; new.
78 $33,000
Rank history: not on the FY2021–FY2024 lists; new.
79
Varner Construction LLC
$32,500
Rank history: not on the FY2021–FY2024 lists; new.
80 $26,151
Rank history: #4 in FY2021, #6 in FY2022, #23 in FY2023 and not on the FY2024 list; returned.
81 $14,476
Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 50 since FY2024.
82 $11,601
Rank history: not on the FY2021–FY2024 lists; new.
83 $11,100
Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 29 since FY2024.
84 $10,000
Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 11 since FY2024.
85 $8,184
Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #89 in FY2024; up 4 since FY2024.
86 $8,069
Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; down 47 since FY2024.
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86 of 90 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 $868 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 Z2KA contractors in FY2025?

1. NW Construction, Inc. ($226M), 2. Ames Federal Contracting Group LLC ($112M), 3. Barnard Construction Company, Incorporated ($87.6M), 4. General Electric Company ($60.4M), 5. Dubuque Barge and Fleeting Service Co ($24.9M), 6. C.j. Mahan Construction Company, LLC ($22.3M), 7. Mcmillen, Inc. ($22M), 8. Knight Const. & Supply Inc ($21M), 9. Northbank Civil and Marine, LLC ($18.8M), 10. G & G Steel Inc. ($18.2M).

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