Top 100 Contractors in PSC Z2NE: Repair or Alteration of Water Supply Facilities, FY2025

Name: Top 100 Contractors in PSC Z2NE: Repair or Alteration of Water Supply Facilities, FY2025
Creator: GovTribe

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

The top 10 won 59% of FY2025 PSC Z2NE contract dollars

Contract obligations: $206,259,931 Net of deobligations, by contracts coded PSC Z2NE
Contractors: 160 Parent companies with an obligation
Largest contractor: Nan Inc. $44.2 million, 20.6% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Nan Inc. Top agencies Army (Department of the Army)	$44,179,336	20.6%	Rank history: not on the FY2021–FY2024 lists; new.
2	Kyunan Co., Ltd. Top agencies USAF (Department of the Air Force)	$21,195,630	9.9%	Rank history: not on the FY2021–FY2024 lists; new.
3	Sea PAC Engineering Inc Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$12,634,660	5.9%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; up 10 since FY2024.
4	Northbank Civil and Marine, LLC Top agencies Army (Department of the Army)	$9,198,769	4.3%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 2 since FY2024.
5	H&S Water and Waste Water Design and Consultancy Services Top agencies DOS (Department of State)	$7,794,977	3.6%	Rank history: not on the FY2021–FY2024 lists; new.
6	Ahtna Global LLC Top agencies DOI (Department of the Interior)	$7,356,296	3.4%	Rank history: not on the FY2021–FY2024 lists; new.
7	Pure Enviro-Management, LLC Top agencies DOI (Department of the Interior)	$7,131,138	3.3%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and not on the FY2024 list; up 96 since FY2024.
8	Seikitokyu Kogyo Co., Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$6,051,428	2.8%	Rank history: not on the FY2021–FY2024 lists; new.
9	Ohno Jyuden Doboku Co., Ltd. Top agencies Army (Department of the Army)	$5,983,574	2.8%	Rank history: not on the FY2021–FY2024 lists; new.
10	Fargo Pacific Inc. Top agencies Navy (Department of the Navy)	$5,580,000	2.6%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 2 since FY2024.
11	Dsq-Api JV LLP Top agencies Navy (Department of the Navy)	$5,273,000	2.5%	Rank history: not on the FY2021–FY2024 lists; new.
12	Arctic Slope Regional Corporation Through Bcss, LLC Top agencies Navy (Department of the Navy)	$5,198,198	2.4%	Rank history: not on the FY2021–FY2024 lists; new.
13	DE LA HOZ Builders Inc Top agencies USAF (Department of the Air Force)	$4,906,558	2.3%	Rank history: not on the FY2021–FY2024 lists; new.
14	Black Construction / Mace International Joint Venture Top agencies Navy (Department of the Navy)	$4,269,808	2.0%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and not on the FY2024 list; returned.
15	Okie LLC Top agencies DOI (Department of the Interior)	$4,193,912	2.0%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 6 since FY2024.
16	Acty Co., Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,621,163	1.7%	Rank history: #33 in FY2021, not on the FY2022 list, #26 in FY2023 and #68 in FY2024; up 52 since FY2024.
17	Prime Projects International (Construction ) Limited Top agencies Navy (Department of the Navy)	$3,585,000	1.7%	Rank history: not on the FY2021–FY2024 lists; new.
18	Dawson Mcg, Inc. Top agencies Navy (Department of the Navy)	$3,200,209	1.5%	Rank history: not on the FY2021–FY2024 lists; new.
19	Techni-Con, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,167,000	1.5%	Rank history: #74 in FY2021, not on the FY2022 list, #10 in FY2023 and not on the FY2024 list; returned.
20	Frawner Corporation Top agencies Navy (Department of the Navy)	$3,066,957	1.4%	Rank history: #23 in FY2021, not on the FY2022–FY2023 lists and #11 in FY2024; down 9 since FY2024.
21	Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit Through Bundesministerium FÜR Umwelt, Naturschutz UND Reaktorsicherheit Top agencies Army (Department of the Army)	$3,011,276	1.4%	Rank history: #28 in FY2021, #19 in FY2022, not on the FY2023 list and #32 in FY2024; up 11 since FY2024.
22	Mcon Constructors, Inc. Top agencies Army (Department of the Army)	$2,312,500	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
23	American Water Enterprises, LLC Top agencies Army (Department of the Army)	$2,194,651	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
24	Ranco Construction Inc. Top agencies USAF (Department of the Air Force)	$1,967,082	0.9%	Rank history: #15 in FY2021, #5 in FY2022, #31 in FY2023 and #9 in FY2024; down 15 since FY2024.
25	Macro-Z-Technology Company Top agencies Navy (Department of the Navy)	$1,797,000	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
26	C J W Construction, Inc. Top agencies Navy (Department of the Navy)	$1,700,493	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
27	Bristol Building Constructors LLC Top agencies Navy (Department of the Navy)	$1,680,042	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
28	Ahtna Solutions, LLC Top agencies Army (Department of the Army)	$1,499,407	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
29	Blue World Construction Inc. Top agencies DOI (Department of the Interior)	$1,385,703	0.6%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2023 and #53 in FY2024; up 24 since FY2024.
30	Bethel Downstream JV Top agencies Navy (Department of the Navy)	$1,348,956	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
31	Northern Management Services, Inc. Top agencies USDA (Department of Agriculture)	$1,324,265	0.6%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and not on the FY2024 list; returned.
32	Richard Group LLC Top agencies VA (Department of Veterans Affairs)	$1,199,543	0.6%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #89 in FY2024; up 57 since FY2024.
33	Central Environmental Inc. Top agencies Navy (Department of the Navy)	$1,072,482	0.5%	Rank history: #89 in FY2021, #2 in FY2022, #47 in FY2023 and not on the FY2024 list; up 75 since FY2024.
34	RJS Construction, Inc. Top agencies USDA (Department of Agriculture)	$1,036,217	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
35	Tripod Construction Services, LLC Top agencies USAF (Department of the Air Force)	$987,408	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
36	Maga Mechanical Contractors, Inc. Top agencies Army (Department of the Army)	$969,650	0.5%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023 and #40 in FY2024; up 4 since FY2024.
37	Miller Electric Company Inc. Top agencies Army (Department of the Army)	$966,873	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
38	M.c. Dean, Inc. Top agencies Army (Department of the Army)	$959,069	0.4%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; down 10 since FY2024.
39	Serrano Construction and Development Corp. Top agencies Navy (Department of the Navy)	$918,597	0.4%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; down 15 since FY2024.
40	Eastern Construction & Electric Inc. Top agencies USAF (Department of the Air Force)	$842,041	0.4%	Rank history: #22 in FY2021, #7 in FY2022, #8 in FY2023 and #50 in FY2024; up 10 since FY2024.
41	Silver Lake - TMG Jv2, LLC Top agencies Army (Department of the Army)	$837,671	0.4%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #17 in FY2024; down 24 since FY2024.
42	Piedmont Environmental Sciences Inc. Top agencies DOI (Department of the Interior)	$755,816	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
43	Soap Engineering, LLC Top agencies USAF (Department of the Air Force)	$737,580	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
44	Spencer Construction LLC Top agencies Navy (Department of the Navy)	$728,359	0.3%	Rank history: not on the FY2021 list, #1 in FY2022, #93 in FY2023 and not on the FY2024 list; returned.
45	Kikiktagruk Inupiat Corp Through Midnight Sun Aus, LLC Top agencies Army (Department of the Army)	$712,948	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
46	JSK Diego Services LLC Top agencies Navy (Department of the Navy)	$695,977	0.3%	Rank history: not on the FY2021 list, #3 in FY2022, #68 in FY2023 and #18 in FY2024; down 28 since FY2024.
47	North Star Construction and Engineering Inc. Top agencies USAF (Department of the Air Force)	$634,394	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
48	Haloa Construction LLC Top agencies DOI (Department of the Interior)	$625,250	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
49	M&L Fabrications LLC Top agencies USAF (Department of the Air Force)	$548,002	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	Suya Corporation Top agencies Navy (Department of the Navy)	$487,195	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
51	Hamilton Pacific Chamberlain LLC Top agencies VA (Department of Veterans Affairs)	$469,568	0.2%	Rank history: #64 in FY2021 and not on the FY2022–FY2024 lists; returned.
52	Quadrant Construction Inc. Top agencies Navy (Department of the Navy)	$456,750	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
53	Mitomo Co., Ltd. Top agencies Navy (Department of the Navy)	$448,665	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
54	Coelho, Inc. Top agencies DOI (Department of the Interior)	$424,750	0.2%	Rank history: not on the FY2021–FY2024 lists; up 66 since FY2024.
55	Tyler Garrett Silveira Top agencies DOI (Department of the Interior)	$400,739	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
56	Action Construction Austin LLC Top agencies USAF (Department of the Air Force)	$398,872	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
57	Building Associates Inc. Top agencies Navy (Department of the Navy)	$398,584	0.2%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 43 since FY2024.
58	DAP Construction Management LLC Top agencies USAF (Department of the Air Force)	$372,092	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
59	K&C Contractors, Inc. Top agencies Army (Department of the Army)	$368,730	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Syblon-Reid Co. Top agencies DOI (Department of the Interior)	$300,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 6 since FY2024.
61	Arrow Indian Contractors Inc. Top agencies Army (Department of the Army)	$293,220	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Cascade Enterprises, Inc. Top agencies USAF (Department of the Air Force)	$273,620	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; up 22 since FY2024.
63	Flagship Contracting Inc Top agencies USAF (Department of the Air Force)	$256,832	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	Meneses & Mcfadden, Cartor, Vitor Hugo Carvalho, LDA Top agencies USAF (Department of the Air Force)	$226,746	0.1%	Rank history: not on the FY2021 list, #74 in FY2022 and not on the FY2023–FY2024 lists; returned.
65	Outcomes & Incomes, Inc. Top agencies Navy (Department of the Navy)	$224,948	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; down 16 since FY2024.
66	Forus Contracting, Inc. Top agencies Navy (Department of the Navy)	$213,333	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Brother Group for General Contracting & Services LLC Top agencies USAF (Department of the Air Force)	$208,255	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Three Rivers Landworks, LLC Top agencies USDA (Department of Agriculture)	$198,758	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Iscani Industries LLC Top agencies Army (Department of the Army)	$191,223	0.1%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; down 53 since FY2024.
70	Pittsburg Tank and Tower Maintenance Co., Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$165,350	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	John Cecil Construction, LLC Top agencies DLA (Defense Logistics Agency)	$157,024	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	Fluid Solutions LLC Top agencies DOS (Department of State)	$151,602	0.1%	Rank history: not on the FY2021–FY2024 lists; up 32 since FY2024.
73	North Wind Construction Services LLC Top agencies USAF (Department of the Air Force)	$151,506	0.1%	Rank history: not on the FY2021 list, #43 in FY2022, not on the FY2023 list and #51 in FY2024; down 22 since FY2024.
74	Global Engineering Services Inc. Top agencies DOI (Department of the Interior)	$139,048	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	SD Resources Inc. Top agencies Army (Department of the Army)	$138,575	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Advanced Logistic Partners Inc. Top agencies DOI (Department of the Interior)	$136,363	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Koman Government Solutions LLC Top agencies Navy (Department of the Navy)	$120,471	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	HBT Concrete, Inc. Top agencies VA (Department of Veterans Affairs)	$106,880	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Aerostar Environmental and Construction LLC Top agencies EPA (Environmental Protection Agency)	$100,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 36 since FY2024.
80	North Wind General Contractors LLC Top agencies USAF (Department of the Air Force)	$99,407	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	Allen Gill Construction Inc. Top agencies DOI (Department of the Interior)	$98,484	<0.1%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2023 list and #41 in FY2024; down 40 since FY2024.
82	Chancey Chambers Top agencies DOI (Department of the Interior)	$96,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	Porr Government Services Italy SRL Top agencies Army (Department of the Army)	$95,061	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Corrtech, Inc. Top agencies DOI (Department of the Interior)	$92,037	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	DAE Chin Construction Co.ltd Top agencies Navy (Department of the Navy)	$83,365	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 55 since FY2024.
86	El Paso J.a.g., Inc. Top agencies DOI (Department of the Interior)	$83,195	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Valhalla Engineering Group LLC Top agencies VA (Department of Veterans Affairs)	$83,069	<0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and not on the FY2024 list; returned.
88	Insight Pacific, LLC Top agencies DLA (Defense Logistics Agency)	$82,803	<0.1%	Rank history: #24 in FY2021, #96 in FY2022, not on the FY2023 list and #4 in FY2024; down 84 since FY2024.
89	Copper Mountain Services LLC Top agencies VA (Department of Veterans Affairs)	$69,175	<0.1%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 8 since FY2024.
90	Kaiva-Signature JV, LLC Top agencies DOI (Department of the Interior)	$68,016	<0.1%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 59 since FY2024.
91	WSP USA Environment & Infrastructure Inc. Top agencies USAF (Department of the Air Force)	$67,922	<0.1%	Rank history: not on the FY2021 list, #65 in FY2022 and not on the FY2023–FY2024 lists; returned.
92	Gardner Structures Top agencies VA (Department of Veterans Affairs)	$65,928	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Rivercrest Construction Top agencies DOI (Department of the Interior)	$64,494	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Paetzold Construction Co Inc. Top agencies USAF (Department of the Air Force)	$59,747	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Nor-Cal Pump & Well Drilling, Inc. Top agencies Army (Department of the Army)	$59,008	<0.1%	Rank history: #6 in FY2021, #82 in FY2022, #61 in FY2023 and not on the FY2024 list; returned.
96	Empire Pump Corp Top agencies VA (Department of Veterans Affairs)	$58,430	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Kekolu-Rio Vista Joint Venture, LLC Top agencies Army (Department of the Army)	$54,666	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Environet Inc. Top agencies Navy (Department of the Navy)	$54,473	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Native Contractors, Inc. Top agencies VA (Department of Veterans Affairs)	$52,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	TLI Construction, Inc. Top agencies USDA (Department of Agriculture)	$52,227	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 160 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 $214 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 Z2NE contractors in FY2025?

1. Nan Inc. ($44.2M), 2. Kyunan Co., Ltd. ($21.2M), 3. Sea PAC Engineering Inc ($12.6M), 4. Northbank Civil and Marine, LLC ($9.2M), 5. H&S Water and Waste Water Design and Consultancy Services ($7.79M), 6. Ahtna Global LLC ($7.36M), 7. Pure Enviro-Management, LLC ($7.13M), 8. Seikitokyu Kogyo Co., Ltd. ($6.05M), 9. Ohno Jyuden Doboku Co., Ltd. ($5.98M), 10. Fargo Pacific Inc. ($5.58M).

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