Top 100 Contractors in NAICS 2213: Water, Sewage and Other Systems, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 2213: Water, Sewage and Other Systems, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 2213: Water, Sewage and Other Systems, FY2025.

The top 10 won 66% of NAICS 2213 contract dollars from August 2025 through July 2026

Contract obligations: $949,594,702 Net of deobligations, by contracts coded NAICS 2213 or a code under it
Contractors: 701 Parent companies with an obligation
Largest contractor: American Water Works Company Inc. $227 million, 23.4% of obligations
Data as of: Nov 5, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	American Water Works Company Inc. 3 awardees, including American Water Operations and Maintenance, LLC, American Water Military Services, LLC and Kentucky-American Water Company Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$227,003,057	23.4%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	American States Water Company 9 awardees, including Old North Utility Services, Inc., Emerald Coast Utility Services Inc. and Fort Bliss Water Services Company Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$137,114,114	14.1%	Rank history: not on the FY2021 list, #16 in FY2022, #9 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$59,628,414	6.1%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$51,646,513	5.3%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #6 in FY2025; up 15 since Aug 2024–Jul 2025.
5	Jacobs Engineering Group Inc. 2 awardees, including Ch2M Hill Constructors, Inc. Top agencies Army (Department of the Army)	$42,998,198	4.4%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023, #5 in FY2024 and #5 in FY2025; up 1 since Aug 2024–Jul 2025.
6	Oklahoma City Water Utilities Trust Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$29,593,152	3.0%	Rank history: not on the FY2021 list, #13 in FY2022, #5 in FY2023, #4 in FY2024 and #7 in FY2025; up 113 since Aug 2024–Jul 2025.
7	Aqua Engineers Inc. Top agencies Army (Department of the Army)	$28,162,553	2.9%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023, #6 in FY2024 and #9 in FY2025; up 1 since Aug 2024–Jul 2025.
8	Augusta-Richmond County Government Top agencies Army (Department of the Army)	$22,803,829	2.3%	Rank history: #13 in FY2021, #11 in FY2022, #16 in FY2023, #12 in FY2024 and #10 in FY2025; up 6 since Aug 2024–Jul 2025.
9	Schutt Industries of Clintonville, Wis., Inc. Top agencies Army (Department of the Army)	$20,094,180	2.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; up 4 since Aug 2024–Jul 2025.
10	Sunstate Environmental Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$17,520,666	1.8%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	American Water Enterprises, LLC Top agencies Army (Department of the Army)	$15,803,881	1.6%	Rank history: #5 in FY2021, #9 in FY2022, #11 in FY2023, #13 in FY2024 and #14 in FY2025; up 1 since Aug 2024–Jul 2025.
12	Base Utilities Inc. Top agencies USAF (Department of the Air Force)	$15,014,528	1.5%	Rank history: #10 in FY2021, #12 in FY2022, #13 in FY2023, #14 in FY2024 and #16 in FY2025; up 3 since Aug 2024–Jul 2025.
13	Nikken Sogyo Co., Ltd. Top agencies Navy (Department of the Navy)	$14,110,472	1.5%	Rank history: #18 in FY2021, #18 in FY2022, #15 in FY2023, #19 in FY2024 and #17 in FY2025; up 4 since Aug 2024–Jul 2025.
14	Washington Suburban Sanitary Commission Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) NARA (National Archives and Records Administration)	$12,146,345	1.3%	Rank history: #12 in FY2021, #10 in FY2022, #10 in FY2023, #10 in FY2024 and #12 in FY2025; up 2 since Aug 2024–Jul 2025.
15	Bairco Construction Inc. Top agencies DOI (Department of the Interior)	$11,628,532	1.2%	Rank history: not on the FY2021 list, #36 in FY2022, not on the FY2023–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16	Clear Lake City Water Authority Top agencies NASA (National Aeronautics and Space Administration)	$10,913,216	1.1%	Rank history: #91 in FY2021, not on the FY2022 list, #75 in FY2023, #39 in FY2024 and #78 in FY2025; up 61 since Aug 2024–Jul 2025.
17	Central Coast Water Authority Top agencies USAF (Department of the Air Force)	$9,652,762	1.0%	Rank history: #17 in FY2021, #21 in FY2022, #18 in FY2023, #17 in FY2024 and #20 in FY2025; up 4 since Aug 2024–Jul 2025.
18	Bristol Bay Native Corporation Through SES Energy Services LLC Top agencies Army (Department of the Army)	$9,538,130	1.0%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, not on the FY2024 list and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19	County of Hardin Through Hardin County Water District NO. 1 Top agencies Army (Department of the Army)	$9,422,116	1.0%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #11 in FY2025; down 8 since Aug 2024–Jul 2025.
20	City of Aberdeen Top agencies Army (Department of the Army)	$8,752,210	0.9%	Rank history: #20 in FY2021, #19 in FY2022, #19 in FY2023, #15 in FY2024 and #24 in FY2025; unchanged since Aug 2024–Jul 2025.
21	Florida Governmental Utility Authority Top agencies USAF (Department of the Air Force)	$8,717,346	0.9%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; up 5 since Aug 2024–Jul 2025.
22	City of Wildwood City Hall Top agencies DOJ (Department of Justice)	$5,700,937	0.6%	Rank history: #40 in FY2021, #41 in FY2022, #50 in FY2023, #42 in FY2024 and #30 in FY2025; up 8 since Aug 2024–Jul 2025.
23	Pyeongtaek-Si Water and Sewage Business Place Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$5,559,229	0.6%	Rank history: #21 in FY2021, #28 in FY2022, #36 in FY2023, #40 in FY2024 and #27 in FY2025; up 13 since Aug 2024–Jul 2025.
24	Riverbend Water Resources District Top agencies Army (Department of the Army)	$4,958,000	0.5%	Rank history: #23 in FY2021, #20 in FY2022, #21 in FY2023, #16 in FY2024 and #18 in FY2025; down 6 since Aug 2024–Jul 2025.
25	Nikken-Metawater JV Top agencies Navy (Department of the Navy)	$4,845,757	0.5%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #32 in FY2024 and #32 in FY2025; up 12 since Aug 2024–Jul 2025.
26	South Granville Water & Sewer Auth Top agencies DOJ (Department of Justice)	$4,753,804	0.5%	Rank history: #34 in FY2021, #31 in FY2022, #28 in FY2023, #31 in FY2024 and #29 in FY2025; up 5 since Aug 2024–Jul 2025.
27	Tama City Hall Top agencies USAF (Department of the Air Force)	$4,748,901	0.5%	Rank history: not on the FY2021 list, #17 in FY2022, #22 in FY2023, #25 in FY2024 and #26 in FY2025; up 1 since Aug 2024–Jul 2025.
28	KLJ Services LLC Top agencies Navy (Department of the Navy)	$4,494,085	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29	Anchorage, Municipality of Inc Through Municipality of Anchorage Top agencies USAF (Department of the Air Force)	$4,128,728	0.4%	Rank history: #54 in FY2021, #32 in FY2022, #35 in FY2023, #36 in FY2024 and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30	Antelope Valley East Kern Water Agency Top agencies USAF (Department of the Air Force)	$3,562,923	0.4%	Rank history: #29 in FY2021, #27 in FY2022, #30 in FY2023, #33 in FY2024 and #37 in FY2025; up 8 since Aug 2024–Jul 2025.
31	Florida Keys Aqueduct Authority Top agencies Navy (Department of the Navy)	$3,543,713	0.4%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; up 8 since Aug 2024–Jul 2025.
32	California Water Service Group Through California Water Service Co Top agencies USAF (Department of the Air Force) DCMA (Defense Contract Management Agency)	$3,523,429	0.4%	Rank history: #31 in FY2021, #47 in FY2022, #33 in FY2023, #28 in FY2024 and #38 in FY2025; down 5 since Aug 2024–Jul 2025.
33	Fayetteville Public Works Commission Top agencies Army (Department of the Army)	$3,221,624	0.3%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 8 since Aug 2024–Jul 2025.
34	Harnett, County of North Carolina Top agencies Army (Department of the Army)	$3,155,476	0.3%	Rank history: #41 in FY2021, #65 in FY2022, #37 in FY2023, #38 in FY2024 and #42 in FY2025; up 8 since Aug 2024–Jul 2025.
35	Epik-Aquashine JV LLC Top agencies DOS (Department of State)	$3,095,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	Washington Hospital Center Corporation Top agencies VA (Department of Veterans Affairs)	$3,063,903	0.3%	Rank history: not on the FY2021 list, #59 in FY2022, #32 in FY2023, #34 in FY2024 and #33 in FY2025; down 3 since Aug 2024–Jul 2025.
37	P D R Properties, Inc. Top agencies Army (Department of the Army)	$2,916,015	0.3%	Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and #35 in FY2025; down 2 since Aug 2024–Jul 2025.
38	Northeast Ohio Regional Sewer District Top agencies NASA (National Aeronautics and Space Administration)	$2,865,500	0.3%	Rank history: #49 in FY2021, #58 in FY2022, #46 in FY2023, #48 in FY2024 and #47 in FY2025; up 17 since Aug 2024–Jul 2025.
39	Ahtna Usa-Cdm JV Top agencies Army (Department of the Army)	$2,729,639	0.3%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; down 35 since Aug 2024–Jul 2025.
40	Bartow County Government Top agencies Army (Department of the Army)	$2,613,860	0.3%	Rank history: not on the FY2021–FY2025 lists; up 369 since Aug 2024–Jul 2025.
41	Jungbu Water Supply Office Top agencies Army (Department of the Army)	$2,307,405	0.2%	Rank history: #39 in FY2021, #40 in FY2022, #48 in FY2023, #50 in FY2024 and #48 in FY2025; up 5 since Aug 2024–Jul 2025.
42	City of Aliceville Top agencies DOJ (Department of Justice)	$2,056,303	0.2%	Rank history: #44 in FY2021, #69 in FY2022, #53 in FY2023, #53 in FY2024 and #56 in FY2025; up 11 since Aug 2024–Jul 2025.
43	Optech-Monette, LLC Top agencies USAF (Department of the Air Force)	$1,891,641	0.2%	Rank history: #43 in FY2021, #33 in FY2022, #31 in FY2023, #35 in FY2024 and #43 in FY2025; unchanged since Aug 2024–Jul 2025.
44	City of Hopewell Hrwtf Top agencies DOJ (Department of Justice)	$1,875,226	0.2%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #52 in FY2025; up 4 since Aug 2024–Jul 2025.
45	DC Water & Sewer Authority Top agencies Treasury (Department of the Treasury) CFPB (Consumer Financial Protection Bureau) DOJ (Department of Justice)	$1,725,751	0.2%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2023–FY2025 lists; up 138 since Aug 2024–Jul 2025.
46	City of Florence Top agencies DOJ (Department of Justice)	$1,606,140	0.2%	Rank history: #45 in FY2021, #46 in FY2022, not on the FY2023 list, #46 in FY2024 and #54 in FY2025; up 12 since Aug 2024–Jul 2025.
47	Pural Water Specialty Co. , Inc. Top agencies Army (Department of the Army)	$1,500,534	0.2%	Rank history: #16 in FY2021, #26 in FY2022, #17 in FY2023, #26 in FY2024 and #34 in FY2025; down 13 since Aug 2024–Jul 2025.
48	Perc Water Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,490,597	0.2%	Rank history: #25 in FY2021, #23 in FY2022, #23 in FY2023, #24 in FY2024 and #23 in FY2025; down 23 since Aug 2024–Jul 2025.
49	Bric LLC Top agencies DOI (Department of the Interior)	$1,457,915	0.2%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	Crico Enterprise, LLC Top agencies Army (Department of the Army)	$1,441,578	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51	Forte Insurance (Cambodia) PLC Top agencies DOS (Department of State)	$1,426,261	0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #70 in FY2025; up 16 since Aug 2024–Jul 2025.
52	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$1,395,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Aug 2024–Jul 2025.
53	Optimum Environmental Corporation Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$1,391,849	0.1%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #49 in FY2025; up 26 since Aug 2024–Jul 2025.
54	City of Jacksonville Top agencies USAF (Department of the Air Force)	$1,383,754	0.1%	Rank history: not on the FY2021–FY2025 lists; up 296 since Aug 2024–Jul 2025.
55	C-A Native Constructors Inc. Top agencies Army (Department of the Army)	$1,305,863	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56	Griffiss Utility Services Corporation Top agencies USAF (Department of the Air Force) DFAS (Defense Finance and Accounting Service)	$1,278,576	0.1%	Rank history: #37 in FY2021, #71 in FY2022, #47 in FY2023, #52 in FY2024 and #67 in FY2025; up 8 since Aug 2024–Jul 2025.
57	Board of Water Commissioners of Columbus Top agencies Army (Department of the Army)	$1,181,020	0.1%	Rank history: #96 in FY2021, not on the FY2022 list, #26 in FY2023, #58 in FY2024 and #68 in FY2025; up 13 since Aug 2024–Jul 2025.
58	Kyotango City Top agencies Army (Department of the Army)	$1,176,372	0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #68 in FY2023, #67 in FY2024 and #69 in FY2025; up 8 since Aug 2024–Jul 2025.
59	Village of Saranac Lake Top agencies DOJ (Department of Justice)	$1,176,034	0.1%	Rank history: #76 in FY2021, #72 in FY2022, #76 in FY2023, #69 in FY2024 and #80 in FY2025; up 35 since Aug 2024–Jul 2025.
60	Evoqua Water Technologies LLC 2 awardees Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$1,166,737	0.1%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #57 in FY2025; up 38 since Aug 2024–Jul 2025.
61	City of Welch Top agencies DOJ (Department of Justice)	$1,156,590	0.1%	Rank history: #87 in FY2021, #87 in FY2022, #77 in FY2023, #65 in FY2024 and #79 in FY2025; up 23 since Aug 2024–Jul 2025.
62	Public Service Commission of Yazoo City Top agencies DOJ (Department of Justice)	$1,148,010	0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, #62 in FY2024 and #71 in FY2025; up 7 since Aug 2024–Jul 2025.
63	Herlong Public Utility District Top agencies DOJ (Department of Justice) Army (Department of the Army)	$1,131,460	0.1%	Rank history: #82 in FY2021, #92 in FY2022, #84 in FY2023, #73 in FY2024 and #74 in FY2025; up 8 since Aug 2024–Jul 2025.
64	City of Leavenworth KS Top agencies Army (Department of the Army)	$1,131,304	0.1%	Rank history: #66 in FY2021, #62 in FY2022, #29 in FY2023, #55 in FY2024 and #55 in FY2025; up 9 since Aug 2024–Jul 2025.
65	Henry Miller Reclaimation District 2131 Top agencies DOI (Department of the Interior)	$1,078,352	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 9 since Aug 2024–Jul 2025.
66	Town of North Hempstead Top agencies DOT (Department of Transportation)	$1,072,113	0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; up 12 since Aug 2024–Jul 2025.
67	Solid Blend Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$1,061,617	0.1%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #59 in FY2025; down 20 since Aug 2024–Jul 2025.
68	Boland Trane Associates, Inc. Through Boland Trane Services Inc.	$997,969	0.1%	Rank history: not on the FY2021–FY2025 lists; up 69 since Aug 2024–Jul 2025.
69	Project Solutions, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$988,751	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, #76 in FY2024 and #97 in FY2025; up 22 since Aug 2024–Jul 2025.
70	Town of Alderson Top agencies DOJ (Department of Justice)	$967,235	0.1%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and #92 in FY2025; up 32 since Aug 2024–Jul 2025.
71	City of Pekin Top agencies DOJ (Department of Justice)	$958,488	0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 24 since Aug 2024–Jul 2025.
72	Lee County VA Through County of Lee Top agencies DOJ (Department of Justice)	$952,435	0.1%	Rank history: #83 in FY2021, #98 in FY2022, #86 in FY2023, #66 in FY2024 and #76 in FY2025; up 141 since Aug 2024–Jul 2025.
73	Contra Costa Water District Inc Top agencies Army (Department of the Army)	$941,017	0.1%	Rank history: not on the FY2021–FY2025 lists; up 34 since Aug 2024–Jul 2025.
74	Vicinity Energy Inc. Through Vicinity Energy Philadelphia Inc. Top agencies Treasury (Department of the Treasury)	$929,658	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
75	Aviate Enterprises, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USAF (Department of the Air Force)	$928,966	0.1%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #64 in FY2025; down 3 since Aug 2024–Jul 2025.
76	Syracuse Energy Concessionaire LLC Top agencies VA (Department of Veterans Affairs)	$900,795	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023, #85 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
77	Dofine Sprinkler Rebuilders Inc. Top agencies USDA (Department of Agriculture)	$882,171	0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78	Paintsville Utilities Commission Top agencies DOJ (Department of Justice)	$875,914	0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 33 since Aug 2024–Jul 2025.
79	Columbiana County Top agencies DOJ (Department of Justice)	$862,805	0.1%	Rank history: #67 in FY2021, not on the FY2022–FY2023 lists, #83 in FY2024 and #87 in FY2025; up 20 since Aug 2024–Jul 2025.
80	Woodway Water Authority Top agencies DOJ (Department of Justice)	$857,986	0.1%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #100 in FY2025; up 32 since Aug 2024–Jul 2025.
81	Lafayette Township Top agencies DOJ (Department of Justice)	$851,397	0.1%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #90 in FY2025; up 11 since Aug 2024–Jul 2025.
82	Liquitech, Inc. Top agencies VA (Department of Veterans Affairs)	$838,247	0.1%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2023–FY2025 lists; up 33 since Aug 2024–Jul 2025.
83	Department of Water Resources Oregon Top agencies DOI (Department of the Interior)	$809,012	0.1%	Rank history: not on the FY2021–FY2025 lists; up 20 since Aug 2024–Jul 2025.
84	Fluid Solutions LLC Top agencies DOS (Department of State)	$795,854	0.1%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #81 in FY2025; down 1 since Aug 2024–Jul 2025.
85	Waymart Area Authority Top agencies DOJ (Department of Justice)	$783,119	0.1%	Rank history: not on the FY2021–FY2025 lists; up 57 since Aug 2024–Jul 2025.
86	Weeminuche Construction Authority Through WCA Construction, LLC Top agencies DOI (Department of the Interior)	$781,876	0.1%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and not on the FY2025 list; down 35 since Aug 2024–Jul 2025.
87	City of Berlin Top agencies DOJ (Department of Justice)	$780,858	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 1 since Aug 2024–Jul 2025.
88	City of Manchester Top agencies DOJ (Department of Justice)	$767,286	0.1%	Rank history: #79 in FY2021, not on the FY2022–FY2023 lists, #97 in FY2024 and not on the FY2025 list; up 53 since Aug 2024–Jul 2025.
89	City of Prestonsburg Through Prestonsburg City Utilities Commission Top agencies DOJ (Department of Justice)	$752,150	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	Guy L Warden & Sons Top agencies VA (Department of Veterans Affairs)	$750,000	0.1%	Rank history: not on the FY2021–FY2025 lists; up 191 since Aug 2024–Jul 2025.
91	Seikitokyu Kogyo Co., Ltd. Top agencies Army (Department of the Army)	$748,695	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 2025.
92	City of Cocoa Top agencies NASA (National Aeronautics and Space Administration)	$739,470	0.1%	Rank history: not on the FY2021 list, #77 in FY2022, #69 in FY2023, #70 in FY2024 and #60 in FY2025; down 35 since Aug 2024–Jul 2025.
93	Water Treatment Specialists Inc. Top agencies VA (Department of Veterans Affairs)	$728,553	0.1%	Rank history: not on the FY2021–FY2025 lists; up 52 since Aug 2024–Jul 2025.
94	City of Lawrence Top agencies DOI (Department of the Interior)	$664,979	0.1%	Rank history: not on the FY2021–FY2025 lists; up 188 since Aug 2024–Jul 2025.
95	DCS Infrastructure, LLC Top agencies VA (Department of Veterans Affairs)	$662,140	0.1%	Rank history: #56 in FY2021, #57 in FY2022, #58 in FY2023, #47 in FY2024 and #83 in FY2025; down 14 since Aug 2024–Jul 2025.
96	The Maclean Group LLC Top agencies VA (Department of Veterans Affairs)	$651,170	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	San Antonio River Authority Top agencies USAF (Department of the Air Force)	$636,187	0.1%	Rank history: #70 in FY2021, #70 in FY2022, #56 in FY2023, #98 in FY2024 and #96 in FY2025; down 1 since Aug 2024–Jul 2025.
98	Gunsan City Hall Climate and Environment Bureau Top agencies USAF (Department of the Air Force)	$622,594	0.1%	Rank history: not on the FY2021–FY2025 lists; up 108 since Aug 2024–Jul 2025.
99	City of El Reno Top agencies DOJ (Department of Justice)	$596,081	0.1%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list, #81 in FY2024 and #91 in FY2025; down 10 since Aug 2024–Jul 2025.
100	City of Fort Worth Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$585,245	0.1%	Rank history: #55 in FY2021, #60 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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100 of 701 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 2213

Code	Net obligations	Largest contractor
22131 Water Supply and Irrigation Systems	$651,626,558	American Water Works Company Inc.
22132 Sewage Treatment Facilities	$262,235,244	Veolia Water West Operating Services Inc.
22133 Steam and Air-Conditioning Supply	$35,732,900	Foreign Utility Consolidated Reporting

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 $971 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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 NAICS 2213 contractors in Aug 2025–Jul 2026?

1. American Water Works Company Inc. ($227M), 2. American States Water Company ($137M), 3. Foreign Utility Consolidated Reporting ($59.6M), 4. Veolia Water West Operating Services Inc. ($51.6M), 5. Jacobs Engineering Group Inc. ($43M), 6. Oklahoma City Water Utilities Trust ($29.6M), 7. Aqua Engineers Inc. ($28.2M), 8. Augusta-Richmond County Government ($22.8M), 9. Schutt Industries of Clintonville, Wis., Inc. ($20.1M), 10. Sunstate Environmental Services Inc. ($17.5M).

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