Top 75 Contractors in PSC Z2KA: Repair or Alteration of Dams, Jul 2025–Jun 2026

Name: Top 75 Contractors in PSC Z2KA: Repair or Alteration of Dams, Jul 2025–Jun 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 93% of PSC Z2KA contract dollars from July 2025 through June 2026

Contract obligations: $2,058,491,391 Net of deobligations, by contracts coded PSC Z2KA
Contractors: 83 Parent companies with an obligation
Largest contractor: Barnard Construction Company, Incorporated $1.35 billion, 64.0% of obligations
Data as of: Oct 16, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 75 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Barnard Construction Company, Incorporated Top agencies Army (Department of the Army)	$1,349,047,661	64.0%	Rank history: not on the FY2021 list, #2 in FY2022, #22 in FY2023, #4 in FY2024 and #3 in FY2025; up 2 since Jul 2024–Jun 2025.
2	NW Construction, Inc. Top agencies DOI (Department of the Interior)	$215,670,745	10.2%	Rank history: #31 in FY2021, #3 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since Jul 2024–Jun 2025.
3	C.j. Mahan Construction Company, LLC Top agencies Army (Department of the Army)	$209,875,254	10.0%	Rank history: #1 in FY2021, #74 in FY2022, #42 in FY2023, #30 in FY2024 and #6 in FY2025; up 6 since Jul 2024–Jun 2025.
4	General Electric Company 2 awardees, including GE Renewables US LLC Top agencies Army (Department of the Army)	$68,139,810	3.2%	Rank history: #22 in FY2021, #38 in FY2022, #12 in FY2023, #8 in FY2024 and #4 in FY2025; up 1 since Jul 2024–Jun 2025.
5	Knight Const. & Supply Inc Top agencies Army (Department of the Army)	$39,187,746	1.9%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023, #2 in FY2024 and #8 in FY2025; down 1 since Jul 2024–Jun 2025.
6	Bauer Foundation Corp. Top agencies Army (Department of the Army)	$24,881,026	1.2%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #54 in FY2025; up 72 since Jul 2024–Jun 2025.
7	G & G Steel Inc. Top agencies Army (Department of the Army)	$18,169,068	0.9%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; new, not ranked in Jul 2024–Jun 2025.
8	AECOM Through Shimmick Construction Company, Inc. Top agencies Army (Department of the Army)	$11,006,247	0.5%	Rank history: #59 in FY2021, #4 in FY2022, #7 in FY2023, #10 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
9	Washington Equipment Manufacturing Company, Inc. Top agencies Army (Department of the Army)	$10,904,784	0.5%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Jul 2024–Jun 2025.
10	SAF Inc. Top agencies Army (Department of the Army)	$10,592,141	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
11	Stgp Malcolm JV LLC Top agencies DOI (Department of the Interior)	$10,265,327	0.5%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	Paragon Construction Services of America Inc. Top agencies Army (Department of the Army)	$8,376,615	0.4%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; up 10 since Jul 2024–Jun 2025.
13	Engineering & Construction Innovations Inc. Top agencies Army (Department of the Army)	$8,155,845	0.4%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
14	American Bridge Holding Company Through American Bridge Company Top agencies Army (Department of the Army)	$7,028,282	0.3%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #27 in FY2025; up 5 since Jul 2024–Jun 2025.
15	Hartman-Walsh Corp Through Hartman-Walsh Painting Company Top agencies DOI (Department of the Interior)	$6,318,023	0.3%	Rank history: #26 in FY2021, #32 in FY2022, not on the FY2023 list, #25 in FY2024 and #24 in FY2025; up 12 since Jul 2024–Jun 2025.
16	Healtheon, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$6,258,715	0.3%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	C K May Excavating Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$6,013,699	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	BCI Construction Usa, Inc. Top agencies Army (Department of the Army)	$5,497,484	0.3%	Rank history: #29 in FY2021, #15 in FY2022, #6 in FY2023, #71 in FY2024 and #20 in FY2025; up 20 since Jul 2024–Jun 2025.
19	Wqri Joint Venture LLC Top agencies Army (Department of the Army)	$4,694,321	0.2%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	J.f. Brennan Company, Inc. Top agencies Army (Department of the Army)	$4,522,261	0.2%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #33 in FY2025; new, not ranked in Jul 2024–Jun 2025.
21	JR Merit, Inc. Top agencies Army (Department of the Army)	$4,000,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	Greenberry Industrial LLC Through Olsson Industrial Electric, Inc. Top agencies Army (Department of the Army)	$3,789,602	0.2%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #12 in FY2025; down 10 since Jul 2024–Jun 2025.
23	Krew Heavy Civil LLC Top agencies DOI (Department of the Interior)	$2,992,259	0.1%	Rank history: #5 in FY2021, #10 in FY2022, #10 in FY2023, #14 in FY2024 and #40 in FY2025; up 3 since Jul 2024–Jun 2025.
24	Precision Mechanical, LLP Top agencies Army (Department of the Army)	$2,947,391	0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
25	Ames Federal Contracting Group LLC Top agencies DOI (Department of the Interior)	$2,912,088	0.1%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; down 23 since Jul 2024–Jun 2025.
26	Andritz (USA) Inc. Through Andritz Hydro Corp Top agencies Army (Department of the Army)	$2,779,697	0.1%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #30 in FY2025; up 18 since Jul 2024–Jun 2025.
27	US West Corp Top agencies Army (Department of the Army)	$2,229,920	0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 4 since Jul 2024–Jun 2025.
28	Voith Hydro Inc Top agencies Army (Department of the Army)	$2,025,909	0.1%	Rank history: #15 in FY2021, #12 in FY2022, #40 in FY2023, #15 in FY2024 and #25 in FY2025; down 13 since Jul 2024–Jun 2025.
29	Massillon Construction and Supply LLC Top agencies Army (Department of the Army)	$2,001,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Jul 2024–Jun 2025.
30	Ames Construction, Inc. Top agencies DOI (Department of the Interior)	$1,986,827	0.1%	Rank history: #4 in FY2021, #6 in FY2022, #23 in FY2023, not on the FY2024 list and #80 in FY2025; up 50 since Jul 2024–Jun 2025.
31	Prime Contracting Services Inc. Top agencies Army (Department of the Army)	$1,691,558	0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
32	American Mine Services LLC Through AMS Industrial LLC Top agencies Army (Department of the Army)	$1,433,765	0.1%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #35 in FY2025; down 7 since Jul 2024–Jun 2025.
33	Basler Services LLC Top agencies DOI (Department of the Interior)	$1,284,862	0.1%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Jul 2024–Jun 2025.
34	JVR LLC Top agencies USAF (Department of the Air Force)	$1,145,470	0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
35	Youderian Construction Inc Top agencies DOI (Department of the Interior)	$1,132,345	0.1%	Rank history: #41 in FY2021, #21 in FY2022, #49 in FY2023, #26 in FY2024 and #61 in FY2025; up 8 since Jul 2024–Jun 2025.
36	Pipkin Inc. Top agencies DOI (Department of the Interior)	$888,783	<0.1%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #45 in FY2025; up 25 since Jul 2024–Jun 2025.
37	Sievert Electric Service and Sales Company Top agencies Army (Department of the Army)	$786,014	<0.1%	Rank history: #81 in FY2021, not on the FY2022 list, #18 in FY2023, #60 in FY2024 and #49 in FY2025; up 35 since Jul 2024–Jun 2025.
38	Stuever Dirtworks, LLC Top agencies Army (Department of the Army)	$757,456	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
39	Braun Construction & Design LLC Top agencies Army (Department of the Army)	$751,555	<0.1%	Rank history: #69 in FY2021, not on the FY2022 list, #80 in FY2023, not on the FY2024 list and #56 in FY2025; new, not ranked in Jul 2024–Jun 2025.
40	Cedarville Engineering Group LLC Top agencies Army (Department of the Army)	$748,225	<0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Jul 2024–Jun 2025.
41	D.j. Group Inc. Top agencies USDA (Department of Agriculture)	$708,557	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
42	Bristol Bay Native Corporation Through SES Constructors LLC Top agencies DOE (Department of Energy)	$648,147	<0.1%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
43	KC Construction Co Top agencies DOI (Department of the Interior)	$559,985	<0.1%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #72 in FY2025; new, not ranked in Jul 2024–Jun 2025.
44	Garco Wemco A Joint Venture Top agencies Army (Department of the Army)	$558,640	<0.1%	Rank history: #8 in FY2021, #45 in FY2022, #9 in FY2023, #29 in FY2024 and #43 in FY2025; up 14 since Jul 2024–Jun 2025.
45	EC Company Top agencies Army (Department of the Army)	$554,032	<0.1%	Rank history: not on the FY2021 list, #9 in FY2022, #21 in FY2023, #50 in FY2024 and #14 in FY2025; down 31 since Jul 2024–Jun 2025.
46	Pick Electric, Inc. Top agencies Army (Department of the Army)	$544,212	<0.1%	Rank history: #17 in FY2021, #24 in FY2022, #20 in FY2023, not on the FY2024 list and #34 in FY2025; down 6 since Jul 2024–Jun 2025.
47	Occi Inc Top agencies Army (Department of the Army)	$496,736	<0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; up 27 since Jul 2024–Jun 2025.
48	Nana Regional Corporation Inc. Through Jade Creek Construction LLC Top agencies DOI (Department of the Interior)	$448,161	<0.1%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; down 31 since Jul 2024–Jun 2025.
49	Emagineered Solutions Inc. Top agencies Army (Department of the Army)	$447,986	<0.1%	Rank history: #36 in FY2021, #31 in FY2022, not on the FY2023–FY2024 lists and #53 in FY2025; new, not ranked in Jul 2024–Jun 2025.
50	Marine Diving Solutions LLC. Top agencies Army (Department of the Army)	$381,407	<0.1%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #50 in FY2025; down 40 since Jul 2024–Jun 2025.
51	JBW Group LLC Top agencies Army (Department of the Army)	$214,615	<0.1%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #63 in FY2025; down 33 since Jul 2024–Jun 2025.
52	Southwind Construction Services, LLC Top agencies Army (Department of the Army)	$208,422	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	SNA Contracting LLC Top agencies Army (Department of the Army)	$179,225	<0.1%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023–FY2024 lists and #39 in FY2025; down 7 since Jul 2024–Jun 2025.
54	Aaecon General Contracting LLC Top agencies Army (Department of the Army)	$141,309	<0.1%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #67 in FY2025; down 31 since Jul 2024–Jun 2025.
55	C-A Native Constructors Inc. Top agencies Army (Department of the Army)	$122,482	<0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Jul 2024–Jun 2025.
56	Suh'dutsing-Pilkington Construction JV II, LLC Top agencies Army (Department of the Army)	$122,362	<0.1%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and not on the FY2025 list; down 22 since Jul 2024–Jun 2025.
57	Chivers Construction Co Inc. Top agencies USDA (Department of Agriculture)	$105,972	<0.1%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #66 in FY2025; down 18 since Jul 2024–Jun 2025.
58	Construction Solutions Group, LLC Top agencies Army (Department of the Army)	$92,292	<0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
59	Ews-Rsci LLC Top agencies DOI (Department of the Interior)	$90,508	<0.1%	Rank history: #9 in FY2021, #16 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
60	West Fork Construction, LLC Top agencies DOI (Department of the Interior)	$85,271	<0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #86 in FY2025; down 19 since Jul 2024–Jun 2025.
61	Dubuque Barge and Fleeting Service Co Top agencies Army (Department of the Army)	$81,869	<0.1%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #5 in FY2025; down 53 since Jul 2024–Jun 2025.
62	T1 Construction LLC Top agencies DOI (Department of the Interior)	$72,088	<0.1%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; down 46 since Jul 2024–Jun 2025.
63	Tunheim Construction, LLC Top agencies Army (Department of the Army)	$67,058	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64	Esther & Company 4:14, LLC Top agencies Army (Department of the Army)	$57,399	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Jul 2024–Jun 2025.
65	Sky Blue Builders LLC Through Sky Blue RME JV LLC Top agencies USAF (Department of the Air Force)	$51,648	<0.1%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #75 in FY2025; down 35 since Jul 2024–Jun 2025.
66	RIO Buildings and Facilities LLC Top agencies Army (Department of the Army)	$41,509	<0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Jul 2024–Jun 2025.
67	JMG Ventures, LLC Top agencies Army (Department of the Army)	$39,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
68	Lillard & Clark Construction Co Inc. Top agencies DOI (Department of the Interior)	$38,346	<0.1%	Rank history: #18 in FY2021, #17 in FY2022, #14 in FY2023, #43 in FY2024 and #57 in FY2025; down 3 since Jul 2024–Jun 2025.
69	Horizon Solution Company Top agencies Army (Department of the Army)	$33,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Jul 2024–Jun 2025.
70	Varner Construction LLC Top agencies USDA (Department of Agriculture)	$32,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71	Sunbelt Rentals, Inc. Top agencies Army (Department of the Army)	$30,059	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
72	Advanced American Construction, Inc. Top agencies Army (Department of the Army)	$22,504	<0.1%	Rank history: not on the FY2021 list, #20 in FY2022, #2 in FY2023, #47 in FY2024 and not on the FY2025 list; down 25 since Jul 2024–Jun 2025.
73	Syblon-Reid Co. Top agencies Army (Department of the Army)	$13,389	<0.1%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; down 62 since Jul 2024–Jun 2025.
74	Grillot Construction LLC Top agencies USDA (Department of Agriculture)	$6,419	<0.1%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and not on the FY2025 list; down 18 since Jul 2024–Jun 2025.
75	Massman Construction Co. Top agencies Army (Department of the Army)	$4,497	<0.1%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #62 in FY2025; down 55 since Jul 2024–Jun 2025.

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75 of 83 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 $2.11 billion 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 Z2KA contractors in Jul 2025–Jun 2026?

1. Barnard Construction Company, Incorporated ($1.35B), 2. NW Construction, Inc. ($216M), 3. C.j. Mahan Construction Company, LLC ($210M), 4. General Electric Company ($68.1M), 5. Knight Const. & Supply Inc ($39.2M), 6. Bauer Foundation Corp. ($24.9M), 7. G & G Steel Inc. ($18.2M), 8. AECOM ($11M), 9. Washington Equipment Manufacturing Company, Inc. ($10.9M), 10. SAF Inc. ($10.6M).

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