Top 100 Contractors in NAICS 2213: Water, Sewage and Other Systems, FY2024

Name: Top 100 Contractors in NAICS 2213: Water, Sewage and Other Systems, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 63% of FY2024 NAICS 2213 contract dollars

Contract obligations: $897,055,169 Net of deobligations, by contracts coded NAICS 2213 or a code under it
Contractors: 846 Parent companies with an obligation
Largest contractor: American Water Works Company Inc. $247 million, 26.8% 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	American Water Works Company Inc. 9 awardees, including American Water Operations and Maintenance, LLC, American Water Military Services, LLC and California-American Water Company Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$246,839,643	26.8%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Fort Bliss Water Services Company 6 awardees, including Old North Utility Services, Inc., American States Utility Services Inc. and Old Dominion Utility Services, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$100,431,564	10.9%	Rank history: not on the FY2021 list, #16 in FY2022, #9 in FY2023 and #2 in FY2025; up 7 since FY2023.
3	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$45,000,127	4.9%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2025; unchanged since FY2023.
4	Oklahoma City Water Utilities Trust 2 awardees Top agencies USAF (Department of the Air Force)	$35,664,995	3.9%	Rank history: not on the FY2021 list, #13 in FY2022, #5 in FY2023 and #7 in FY2025; up 1 since FY2023.
5	Jacobs Government Services Company 2 awardees, including Ch2M Hill Constructors, Inc. and Jacobs Project Management Co Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$30,746,967	3.3%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023 and #5 in FY2025; up 9 since FY2023.
6	Aqua Engineers Inc. Top agencies Army (Department of the Army)	$29,356,065	3.2%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #9 in FY2025; down 2 since FY2023.
7	Fort Riley Utility Services, Inc. Top agencies Army (Department of the Army)	$27,721,270	3.0%	Rank history: #8 in FY2021, #5 in FY2022, #7 in FY2023 and #15 in FY2025; unchanged since FY2023.
8	Old North Utility Services Inc. 5 awardees, including Terrapin Utility Services, Inc., Old Dominion Utility Services, Inc. and Palmetto State Utility Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$27,507,079	3.0%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and not on the FY2025 list; down 6 since FY2023.
9	Emerald Coast Utility Services Inc. Top agencies USAF (Department of the Air Force)	$18,952,172	2.1%	Rank history: #9 in FY2021, #8 in FY2022, #8 in FY2023 and #12 in FY2025; down 1 since FY2023.
10	Washington Suburban Sanitary Commission Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) Smithsonian (Smithsonian Institution)	$16,684,047	1.8%	Rank history: #12 in FY2021, #10 in FY2022, #10 in FY2023 and #13 in FY2025; unchanged since FY2023.
11	Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$16,548,118	1.8%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
12	Augusta-Richmond County Government Top agencies Army (Department of the Army)	$14,211,072	1.5%	Rank history: #13 in FY2021, #11 in FY2022, #16 in FY2023 and #10 in FY2025; up 4 since FY2023.
13	American Water Enterprises, LLC Top agencies Army (Department of the Army)	$13,889,723	1.5%	Rank history: #5 in FY2021, #9 in FY2022, #11 in FY2023 and #16 in FY2025; down 2 since FY2023.
14	Base Utilities Inc. Top agencies USAF (Department of the Air Force)	$13,888,949	1.5%	Rank history: #10 in FY2021, #12 in FY2022, #13 in FY2023 and #18 in FY2025; down 1 since FY2023.
15	City of Aberdeen Top agencies Army (Department of the Army)	$10,159,139	1.1%	Rank history: #20 in FY2021, #19 in FY2022, #19 in FY2023 and #26 in FY2025; up 4 since FY2023.
16	Riverbend Water Resources District Top agencies Army (Department of the Army)	$8,385,861	0.9%	Rank history: #23 in FY2021, #20 in FY2022, #21 in FY2023 and #20 in FY2025; up 5 since FY2023.
17	Central Coast Water Authority Top agencies USAF (Department of the Air Force)	$8,073,743	0.9%	Rank history: #17 in FY2021, #21 in FY2022, #18 in FY2023 and #22 in FY2025; up 1 since FY2023.
18	CPF LLC Top agencies USDA (Department of Agriculture)	$7,963,193	0.9%	Rank history: #98 in FY2021, not on the FY2022 list, #71 in FY2023 and not on the FY2025 list; up 53 since FY2023.
19	Nikken Sogyo Co., Ltd. Top agencies Navy (Department of the Navy)	$7,412,049	0.8%	Rank history: #18 in FY2021, #18 in FY2022, #15 in FY2023 and #19 in FY2025; down 4 since FY2023.
20	GTA Containers, LLC 2 awardees Top agencies Army (Department of the Army)	$6,965,250	0.8%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #27 in FY2025; up 4 since FY2023.
21	Florida Governmental Utility Authority Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$6,939,312	0.8%	Rank history: #11 in FY2021, #14 in FY2022, #20 in FY2023 and not on the FY2025 list; down 1 since FY2023.
22	Veolia Water North America-West LLC 3 awardees, including Veolia Water West Operating Services Inc., Vicinity Energy Philadelphia Inc. and Vicinity Energy Cambridge, LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) Treasury (Department of the Treasury) DOT (Department of Transportation)	$5,704,240	0.6%	Rank history: #7 in FY2021, #7 in FY2022, #6 in FY2023 and not on the FY2025 list; down 16 since FY2023.
23	SES Energy Services LLC Top agencies Army (Department of the Army)	$5,393,049	0.6%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
24	Perc Water Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$4,668,058	0.5%	Rank history: #25 in FY2021, #23 in FY2022, #23 in FY2023 and #25 in FY2025; down 1 since FY2023.
25	Tama City Hall Top agencies USAF (Department of the Air Force)	$4,571,166	0.5%	Rank history: not on the FY2021 list, #17 in FY2022, #22 in FY2023 and #29 in FY2025; down 3 since FY2023.
26	Pural Water Specialty Co. , Inc. Top agencies Army (Department of the Army) Smithsonian (Smithsonian Institution)	$4,565,412	0.5%	Rank history: #16 in FY2021, #26 in FY2022, #17 in FY2023 and #37 in FY2025; down 9 since FY2023.
27	Numunu Staffing LLC Top agencies Army (Department of the Army)	$4,512,483	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
28	California Water Service Group Through California Water Service Co Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) DCMA (Defense Contract Management Agency)	$4,506,777	0.5%	Rank history: #31 in FY2021, #47 in FY2022, #33 in FY2023 and #41 in FY2025; up 5 since FY2023.
29	P D R Properties, Inc. Top agencies Army (Department of the Army)	$4,453,885	0.5%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
30	County of Hardin Through Hardin County Water District NO. 1 Top agencies Army (Department of the Army)	$4,189,855	0.5%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
31	South Granville Water & Sewer Auth Top agencies DOJ (Department of Justice)	$3,919,507	0.4%	Rank history: #34 in FY2021, #31 in FY2022, #28 in FY2023 and #32 in FY2025; down 3 since FY2023.
32	Nikken-Metawater JV Top agencies Navy (Department of the Navy)	$3,799,291	0.4%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #35 in FY2025; down 5 since FY2023.
33	Antelope Valley East Kern Water Agency Top agencies USAF (Department of the Air Force)	$3,772,117	0.4%	Rank history: #29 in FY2021, #27 in FY2022, #30 in FY2023 and #40 in FY2025; down 3 since FY2023.
34	Washington Hospital Center Corporation Top agencies VA (Department of Veterans Affairs)	$3,376,069	0.4%	Rank history: not on the FY2021 list, #59 in FY2022, #32 in FY2023 and #36 in FY2025; down 2 since FY2023.
35	Optech-Monette, LLC Top agencies USAF (Department of the Air Force)	$3,205,399	0.3%	Rank history: #43 in FY2021, #33 in FY2022, #31 in FY2023 and #46 in FY2025; down 4 since FY2023.
36	Municipality of Anchorage 2 awardees Top agencies USAF (Department of the Air Force)	$3,128,918	0.3%	Rank history: #54 in FY2021, #32 in FY2022, #35 in FY2023 and #42 in FY2025; down 1 since FY2023.
37	Hardin County Water District NO. 1 Top agencies Army (Department of the Army)	$3,037,866	0.3%	Rank history: #22 in FY2021, #24 in FY2022, #25 in FY2023 and not on the FY2025 list; down 12 since FY2023.
38	Harnett, County of North Carolina Top agencies Army (Department of the Army)	$2,844,519	0.3%	Rank history: #41 in FY2021, #65 in FY2022, #37 in FY2023 and #45 in FY2025; down 1 since FY2023.
39	Clear Lake City Water Authority Top agencies NASA (National Aeronautics and Space Administration)	$2,730,405	0.3%	Rank history: #91 in FY2021, not on the FY2022 list, #75 in FY2023 and #81 in FY2025; up 36 since FY2023.
40	Pyeongtaek-Si Water and Sewage Business Place Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,679,889	0.3%	Rank history: #21 in FY2021, #28 in FY2022, #36 in FY2023 and #30 in FY2025; down 4 since FY2023.
41	Fayetteville City of Through Fayetteville Public Works Commission Top agencies Army (Department of the Army)	$2,507,005	0.3%	Rank history: #33 in FY2021, #34 in FY2022, #39 in FY2023 and not on the FY2025 list; down 2 since FY2023.
42	City of Wildwood City Hall Top agencies DOJ (Department of Justice)	$2,488,054	0.3%	Rank history: #40 in FY2021, #41 in FY2022, #50 in FY2023 and #33 in FY2025; up 8 since FY2023.
43	Fairbanks Sewer & Water Inc. 2 awardees, including Golden Heart Utilities, Inc. Top agencies Army (Department of the Army)	$2,456,485	0.3%	Rank history: #59 in FY2021, #45 in FY2022, #41 in FY2023 and not on the FY2025 list; down 2 since FY2023.
44	Solid Blend Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$2,431,011	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
45	Schwarz Construction LLC Top agencies Army (Department of the Army)	$2,275,524	0.2%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #59 in FY2025; up 7 since FY2023.
46	City of Florence Top agencies DOJ (Department of Justice)	$2,077,230	0.2%	Rank history: #45 in FY2021, #46 in FY2022, not on the FY2023 list and #57 in FY2025; up 211 since FY2023.
47	DCS Infrastructure, LLC Top agencies VA (Department of Veterans Affairs)	$2,037,387	0.2%	Rank history: #56 in FY2021, #57 in FY2022, #58 in FY2023 and #86 in FY2025; up 11 since FY2023.
48	Northeast Ohio Regional Sewer District Top agencies NASA (National Aeronautics and Space Administration)	$2,034,000	0.2%	Rank history: #49 in FY2021, #58 in FY2022, #46 in FY2023 and #50 in FY2025; down 2 since FY2023.
49	Weeminuche Construction Authority Through WCA Construction, LLC Top agencies DOI (Department of the Interior)	$2,015,100	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
50	Jungbu Water Supply Office Top agencies Army (Department of the Army)	$1,987,055	0.2%	Rank history: #39 in FY2021, #40 in FY2022, #48 in FY2023 and #51 in FY2025; down 2 since FY2023.
51	NS & Associates, LLC Top agencies GSA (General Services Administration)	$1,984,260	0.2%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; up 63 since FY2023.
52	Griffiss Utility Services Corporation Top agencies USAF (Department of the Air Force) DFAS (Defense Finance and Accounting Service)	$1,984,042	0.2%	Rank history: #37 in FY2021, #71 in FY2022, #47 in FY2023 and #68 in FY2025; down 5 since FY2023.
53	City of Aliceville Top agencies DOJ (Department of Justice)	$1,762,774	0.2%	Rank history: #44 in FY2021, #69 in FY2022, #53 in FY2023 and #58 in FY2025; unchanged since FY2023.
54	Lowndes County Board of Commissioners Top agencies USAF (Department of the Air Force)	$1,683,073	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; up 94 since FY2023.
55	City of Leavenworth 2 awardees, including City of Leavenworth KS Top agencies Army (Department of the Army) DOJ (Department of Justice)	$1,610,910	0.2%	Rank history: #66 in FY2021, #62 in FY2022, #29 in FY2023 and #71 in FY2025; down 26 since FY2023.
56	City of Chesapeake Top agencies Navy (Department of the Navy)	$1,400,980	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	JMG Constructors LLC Top agencies DOI (Department of the Interior)	$1,374,355	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Board of Water Commissioners of Columbus Top agencies Army (Department of the Army)	$1,350,620	0.1%	Rank history: #96 in FY2021, not on the FY2022 list, #26 in FY2023 and #69 in FY2025; down 32 since FY2023.
59	City of Jacksonville Ar Through City of Jacksonville Top agencies USAF (Department of the Air Force)	$1,306,596	0.1%	Rank history: not on the FY2021 list, #48 in FY2022, #34 in FY2023 and #66 in FY2025; down 25 since FY2023.
60	City of Freeport Top agencies DOE (Department of Energy)	$1,300,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
61	Evoqua Water Technologies, LLC 6 awardees, including Neptune Benson Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,202,331	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 186 since FY2023.
62	Public Service Commission of Yazoo City Top agencies DOJ (Department of Justice)	$1,179,945	0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and #74 in FY2025; up 26 since FY2023.
63	Clean Infusion LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$1,155,743	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Gregg Township Municipal Authority Top agencies DOJ (Department of Justice)	$1,131,828	0.1%	Rank history: #75 in FY2021, #90 in FY2022, #79 in FY2023 and #85 in FY2025; up 15 since FY2023.
65	City of Welch Top agencies DOJ (Department of Justice)	$1,077,669	0.1%	Rank history: #87 in FY2021, #87 in FY2022, #77 in FY2023 and #82 in FY2025; up 12 since FY2023.
66	Lee County VA Through County of Lee Top agencies DOJ (Department of Justice)	$1,048,753	0.1%	Rank history: #83 in FY2021, #98 in FY2022, #86 in FY2023 and not on the FY2025 list; up 20 since FY2023.
67	Kyotango City Top agencies Army (Department of the Army)	$1,047,636	0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #68 in FY2023 and #72 in FY2025; up 1 since FY2023.
68	Town of North Hempstead Town Hall Through Town of North Hempstead Top agencies DOT (Department of Transportation)	$1,026,410	0.1%	Rank history: #94 in FY2021, #100 in FY2022, #96 in FY2023 and not on the FY2025 list; up 28 since FY2023.
69	Village of Saranac Lake Top agencies DOJ (Department of Justice)	$998,006	0.1%	Rank history: #76 in FY2021, #72 in FY2022, #76 in FY2023 and #83 in FY2025; up 7 since FY2023.
70	City of Cocoa Top agencies NASA (National Aeronautics and Space Administration)	$991,481	0.1%	Rank history: not on the FY2021 list, #77 in FY2022, #69 in FY2023 and #61 in FY2025; down 1 since FY2023.
71	Forte Insurance (Cambodia) PLC Top agencies DOS (Department of State)	$989,340	0.1%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2025; up 66 since FY2023.
72	Vedant Construction Inc. Top agencies USAF (Department of the Air Force)	$987,445	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; up 35 since FY2023.
73	Herlong Public Utility District Top agencies DOJ (Department of Justice) Army (Department of the Army)	$942,867	0.1%	Rank history: #82 in FY2021, #92 in FY2022, #84 in FY2023 and #77 in FY2025; up 11 since FY2023.
74	Preston County Public Service District NO4 Top agencies DOJ (Department of Justice)	$940,861	0.1%	Rank history: #85 in FY2021, #85 in FY2022, #92 in FY2023 and #76 in FY2025; up 18 since FY2023.
75	Agribusiness Development Corporation Top agencies Navy (Department of the Navy)	$924,330	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Project Solutions, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$916,987	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2025 list; up 19 since FY2023.
77	Optimum Environmental Corporation Top agencies USDA (Department of Agriculture)	$896,630	0.1%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; up 38 since FY2023.
78	City of Hopewell Hrwtf Top agencies DOJ (Department of Justice)	$883,720	0.1%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
79	Lab Leasing Co., Inc. Top agencies USDA (Department of Agriculture)	$876,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 40 since FY2023.
80	City of Greenville Top agencies DOJ (Department of Justice)	$867,823	0.1%	Rank history: #90 in FY2021, #97 in FY2022, #83 in FY2023 and not on the FY2025 list; up 3 since FY2023.
81	City of El Reno Top agencies DOJ (Department of Justice)	$845,659	0.1%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list and #95 in FY2025; up 24 since FY2023.
82	Utility Systems of Georgia, Inc. Top agencies Army (Department of the Army)	$817,872	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; up 21 since FY2023.
83	Columbiana County Top agencies DOJ (Department of Justice)	$812,086	0.1%	Rank history: #67 in FY2021, not on the FY2022–FY2023 lists and #90 in FY2025; up 23 since FY2023.
84	Procon International LLC Top agencies USAID (US Agency for International Development)	$799,292	0.1%	Rank history: not on the FY2021 list, #66 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
85	Syracuse Energy Concessionaire LLC Top agencies VA (Department of Veterans Affairs)	$778,919	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and not on the FY2025 list; up 15 since FY2023.
86	City of Danbury CT Top agencies DOJ (Department of Justice)	$760,000	0.1%	Rank history: #73 in FY2021, #91 in FY2022, #93 in FY2023 and #98 in FY2025; up 7 since FY2023.
87	Lafayette Township Top agencies DOJ (Department of Justice)	$755,874	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; up 22 since FY2023.
88	Town of Alderson Top agencies DOJ (Department of Justice)	$714,559	0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2025; up 25 since FY2023.
89	Fremont Sanitation District Top agencies DOJ (Department of Justice)	$690,708	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Troop Contracting Inc. Top agencies VA (Department of Veterans Affairs)	$689,988	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
91	IWC Innovations LLC Top agencies GSA (General Services Administration)	$685,987	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2025 list; down 31 since FY2023.
92	Woodway Water Authority Top agencies DOJ (Department of Justice)	$681,460	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 26 since FY2023.
93	Indiana County Municipal Service Authority Top agencies Army (Department of the Army)	$661,562	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Preston County Public Service District Top agencies DOJ (Department of Justice)	$660,178	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 136 since FY2023.
95	Aviate Enterprises, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$658,563	0.1%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; up 130 since FY2023.
96	Fluid Solutions LLC Top agencies DOS (Department of State)	$658,326	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; up 27 since FY2023.
97	City of Manchester Top agencies DOJ (Department of Justice)	$658,211	0.1%	Rank history: #79 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 27 since FY2023.
98	San Antonio River Authority Top agencies USAF (Department of the Air Force)	$656,581	0.1%	Rank history: #70 in FY2021, #70 in FY2022, #56 in FY2023 and #100 in FY2025; down 42 since FY2023.
99	Tatonka Trucking Llc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$649,204	0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and not on the FY2025 list; down 38 since FY2023.
100	Enviroh20 LLC Top agencies VA (Department of Veterans Affairs)	$622,009	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 126 since FY2023.

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100 of 846 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	$623,372,176	American Water Works Company Inc.
22132 Sewage Treatment Facilities	$222,425,604	American Water Works Company Inc.
22133 Steam and Air-Conditioning Supply	$51,257,389	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 $922 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 NAICS 2213 contractors in FY2024?

1. American Water Works Company Inc. ($247M), 2. Fort Bliss Water Services Company ($100M), 3. Foreign Utility Consolidated Reporting ($45M), 4. Oklahoma City Water Utilities Trust ($35.7M), 5. Jacobs Government Services Company ($30.7M), 6. Aqua Engineers Inc. ($29.4M), 7. Fort Riley Utility Services, Inc. ($27.7M), 8. Old North Utility Services Inc. ($27.5M), 9. Emerald Coast Utility Services Inc. ($19M), 10. Washington Suburban Sanitary Commission ($16.7M).

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