Top 100 Contractors in NAICS 221320: Sewage Treatment Facilities, FY2024

Name: Top 100 Contractors in NAICS 221320: Sewage Treatment Facilities, FY2024
Creator: GovTribe

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

The top 10 won 71% of FY2024 NAICS 221320 contract dollars

Contract obligations: $222,425,604 Net of deobligations, by contracts coded NAICS 221320
Contractors: 172 Parent companies with an obligation
Largest contractor: American Water Works Company Inc. $50.3 million, 22.0% 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. 3 awardees, including American Water Military Services, LLC and Illinois-American Water Company Top agencies Navy (Department of the Navy) Army (Department of the Army) DOJ (Department of Justice)	$50,268,121	22.0%	Rank history: #3 in FY2021, #1 in FY2022, #3 in FY2023 and #3 in FY2025; up 2 since FY2023.
2	Aqua Engineers Inc. Top agencies Army (Department of the Army)	$29,356,065	12.9%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2023 and #2 in FY2025; down 1 since FY2023.
3	Fort Bliss Water Services Company 2 awardees, including American States Utility Services Inc. and Old Dominion Utility Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$24,671,934	10.8%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
4	Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$16,548,118	7.2%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
5	City of Aberdeen Top agencies Army (Department of the Army)	$10,159,139	4.4%	Rank history: #7 in FY2021, #8 in FY2022, #7 in FY2023 and #10 in FY2025; up 2 since FY2023.
6	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$7,693,521	3.4%	Rank history: #4 in FY2021, #4 in FY2022, #5 in FY2023 and #6 in FY2025; down 1 since FY2023.
7	Nikken Sogyo Co., Ltd. Top agencies Navy (Department of the Navy)	$7,412,049	3.2%	Rank history: #5 in FY2021, #7 in FY2022, #6 in FY2023 and #7 in FY2025; down 1 since FY2023.
8	Old North Utility Services Inc. 2 awardees, including Old Dominion Utility Services, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$5,742,327	2.5%	Rank history: #6 in FY2021, #3 in FY2022, #4 in FY2023 and not on the FY2025 list; down 4 since FY2023.
9	Perc Water Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$4,668,058	2.0%	Rank history: #9 in FY2021, #9 in FY2022, #9 in FY2023 and #9 in FY2025; unchanged since FY2023.
10	Tama City Hall Top agencies USAF (Department of the Air Force)	$4,571,166	2.0%	Rank history: not on the FY2021 list, #6 in FY2022, #8 in FY2023 and #11 in FY2025; down 2 since FY2023.
11	P D R Properties, Inc. Top agencies Army (Department of the Army)	$4,453,885	2.0%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; up 173 since FY2023.
12	Veolia Water North America-West LLC Through Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$4,383,155	1.9%	Rank history: #2 in FY2021, #5 in FY2022, #2 in FY2023 and not on the FY2025 list; down 10 since FY2023.
13	South Granville Water & Sewer Auth Top agencies DOJ (Department of Justice)	$3,919,507	1.7%	Rank history: #11 in FY2021, #11 in FY2022, #11 in FY2023 and #12 in FY2025; down 2 since FY2023.
14	Nikken-Metawater JV Top agencies Navy (Department of the Navy)	$3,799,291	1.7%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023 and #13 in FY2025; down 4 since FY2023.
15	Optech-Monette, LLC Top agencies USAF (Department of the Air Force)	$3,205,399	1.4%	Rank history: #14 in FY2021, #13 in FY2022, #12 in FY2023 and #18 in FY2025; down 3 since FY2023.
16	Municipality of Anchorage 2 awardees Top agencies USAF (Department of the Air Force)	$3,128,918	1.4%	Rank history: #18 in FY2021, #12 in FY2022, #13 in FY2023 and #15 in FY2025; down 3 since FY2023.
17	Harnett, County of North Carolina Top agencies Army (Department of the Army)	$2,844,519	1.2%	Rank history: #13 in FY2021, #20 in FY2022, #14 in FY2023 and #17 in FY2025; down 3 since FY2023.
18	Fairbanks Sewer & Water Inc. 2 awardees, including Golden Heart Utilities, Inc. Top agencies Army (Department of the Army)	$2,456,485	1.1%	Rank history: #20 in FY2021, #16 in FY2022, #16 in FY2023 and #49 in FY2025; down 2 since FY2023.
19	Schwarz Construction LLC Top agencies Army (Department of the Army)	$2,275,524	1.0%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #21 in FY2025; down 1 since FY2023.
20	DCS Infrastructure, LLC Top agencies VA (Department of Veterans Affairs)	$2,037,387	0.9%	Rank history: #19 in FY2021, #18 in FY2022, #20 in FY2023 and #28 in FY2025; unchanged since FY2023.
21	Lowndes County Board of Commissioners Top agencies USAF (Department of the Air Force)	$1,683,073	0.7%	Rank history: #59 in FY2021, #54 in FY2022, #45 in FY2023 and #29 in FY2025; up 24 since FY2023.
22	JMG Constructors LLC Top agencies DOI (Department of the Interior)	$1,374,355	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	Clean Infusion LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$1,155,743	0.5%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; new.
24	Gregg Township Municipal Authority Top agencies DOJ (Department of Justice)	$1,131,828	0.5%	Rank history: #30 in FY2021, #33 in FY2022, #24 in FY2023 and #27 in FY2025; unchanged since FY2023.
25	Lee County VA Through County of Lee Top agencies DOJ (Department of Justice)	$1,048,753	0.5%	Rank history: #33 in FY2021, #37 in FY2022, #27 in FY2023 and not on the FY2025 list; up 2 since FY2023.
26	Town of North Hempstead Town Hall Through Town of North Hempstead Top agencies DOT (Department of Transportation)	$1,026,410	0.4%	Rank history: #38 in FY2021, #38 in FY2022, #33 in FY2023 and not on the FY2025 list; up 7 since FY2023.
27	Village of Saranac Lake Top agencies DOJ (Department of Justice)	$998,006	0.4%	Rank history: #31 in FY2021, #26 in FY2022, #23 in FY2023 and #26 in FY2025; down 4 since FY2023.
28	City of Leavenworth KS Top agencies Army (Department of the Army)	$974,508	0.4%	Rank history: #35 in FY2021, #28 in FY2022, #32 in FY2023 and #25 in FY2025; up 4 since FY2023.
29	Project Solutions, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$916,987	0.4%	Rank history: #52 in FY2021, #43 in FY2022, #31 in FY2023 and #34 in FY2025; up 2 since FY2023.
30	Optimum Environmental Corporation Top agencies USDA (Department of Agriculture)	$896,630	0.4%	Rank history: #50 in FY2021, #53 in FY2022, #37 in FY2023 and #19 in FY2025; up 7 since FY2023.
31	City of Hopewell Hrwtf Top agencies DOJ (Department of Justice)	$883,720	0.4%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
32	Lab Leasing Co., Inc. Top agencies USDA (Department of Agriculture)	$876,000	0.4%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and #59 in FY2025; up 7 since FY2023.
33	Procon International LLC Top agencies USAID (US Agency for International Development)	$799,292	0.4%	Rank history: not on the FY2021 list, #22 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
34	Lafayette Township Top agencies DOJ (Department of Justice)	$755,874	0.3%	Rank history: #54 in FY2021, #40 in FY2022, #36 in FY2023 and #32 in FY2025; up 2 since FY2023.
35	Fremont Sanitation District Top agencies DOJ (Department of Justice)	$690,708	0.3%	Rank history: #48 in FY2021, #39 in FY2022, not on the FY2023 list and #36 in FY2025; returned.
36	Preston County Public Service District Top agencies DOJ (Department of Justice)	$660,178	0.3%	Rank history: #58 in FY2021, #49 in FY2022, #74 in FY2023 and #41 in FY2025; up 38 since FY2023.
37	San Antonio River Authority Top agencies USAF (Department of the Air Force)	$656,581	0.3%	Rank history: #26 in FY2021, #25 in FY2022, #19 in FY2023 and #33 in FY2025; down 18 since FY2023.
38	Herlong Public Utility District Top agencies DOJ (Department of Justice)	$632,500	0.3%	Rank history: #41 in FY2021, not on the FY2022 list, #75 in FY2023 and #31 in FY2025; up 37 since FY2023.
39	Paintsville Utilities Commission Top agencies DOJ (Department of Justice)	$504,693	0.2%	Rank history: #94 in FY2021, not on the FY2022–FY2023 lists and #35 in FY2025; returned.
40	Kent County Government Top agencies USAF (Department of the Air Force)	$496,701	0.2%	Rank history: #57 in FY2021, #51 in FY2022, #47 in FY2023 and #37 in FY2025; up 7 since FY2023.
41	City of Pekin Top agencies DOJ (Department of Justice)	$493,183	0.2%	Rank history: #42 in FY2021, #42 in FY2022, #40 in FY2023 and #30 in FY2025; down 1 since FY2023.
42	City of Anadarko City Hall Top agencies DOI (Department of the Interior)	$485,010	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #92 in FY2023 and #55 in FY2025; up 50 since FY2023.
43	Waymart Area Authority Top agencies DOJ (Department of Justice)	$443,907	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
44	City of Hopewell Through City of Hopewell Hrwtf Top agencies DOJ (Department of Justice)	$393,750	0.2%	Rank history: #12 in FY2021, #17 in FY2022, #28 in FY2023 and not on the FY2025 list; down 16 since FY2023.
45	City of Berlin Top agencies DOJ (Department of Justice)	$376,408	0.2%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
46	A. James Global Services, Inc. Top agencies USAF (Department of the Air Force)	$367,005	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #57 in FY2023 and #52 in FY2025; up 11 since FY2023.
47	City of Manchester Top agencies DOJ (Department of Justice)	$364,181	0.2%	Rank history: not on the FY2021 list, #55 in FY2022, #60 in FY2023 and #58 in FY2025; up 13 since FY2023.
48	Agra Environmental Service, Inc. Top agencies VA (Department of Veterans Affairs)	$320,300	0.1%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
49	Sociedade De Empreitadas E Trabalhos Hidraulicos, S.A. Top agencies USAF (Department of the Air Force)	$307,304	0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; new.
50	Pacific Northwest Environmental Services LLC Top agencies USDA (Department of Agriculture)	$287,004	0.1%	Rank history: #74 in FY2021, #72 in FY2022, #59 in FY2023 and #53 in FY2025; up 9 since FY2023.
51	Nsp-Bch, LLC Top agencies USAF (Department of the Air Force)	$284,060	0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and #47 in FY2025; up 10 since FY2023.
52	Nicklaus Engineering, Inc. Top agencies Army (Department of the Army)	$283,347	0.1%	Rank history: #62 in FY2021, #67 in FY2022, #84 in FY2023 and #70 in FY2025; up 32 since FY2023.
53	Florida Keys Aqueduct Authority Top agencies Navy (Department of the Navy)	$282,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
54	MC3 Solutions LLC Top agencies DOI (Department of the Interior)	$262,499	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; new.
55	Johnson County of Through Paintsville Utilities Commission Top agencies DOJ (Department of Justice)	$246,751	0.1%	Rank history: #45 in FY2021, #41 in FY2022, #34 in FY2023 and not on the FY2025 list; down 21 since FY2023.
56	Gotemba Eiseisha, Co. Ltd. Top agencies Navy (Department of the Navy)	$212,671	0.1%	Rank history: #71 in FY2021, #63 in FY2022, #64 in FY2023 and #57 in FY2025; up 8 since FY2023.
57	IAW Construction, Inc. Top agencies VA (Department of Veterans Affairs)	$209,474	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Kaihou Kogyo Co., Ltd. Top agencies USAF (Department of the Air Force)	$201,288	0.1%	Rank history: #73 in FY2021, #66 in FY2022, #53 in FY2023 and #62 in FY2025; down 5 since FY2023.
59	Midway Sewer District Top agencies DOJ (Department of Justice)	$197,546	0.1%	Rank history: #85 in FY2021, not on the FY2022 list, #62 in FY2023 and not on the FY2025 list; up 3 since FY2023.
60	Denver Board of Water Commissioners Top agencies Treasury (Department of the Treasury)	$192,938	0.1%	Rank history: not on the FY2021 list, #78 in FY2022, #76 in FY2023 and #78 in FY2025; up 16 since FY2023.
61	Rockaway Valley Reg Sewer Auth Top agencies Army (Department of the Army)	$180,907	0.1%	Rank history: #84 in FY2021, #84 in FY2022, #85 in FY2023 and #69 in FY2025; up 24 since FY2023.
62	Kankyo Gijutsu KK Top agencies USAF (Department of the Air Force)	$179,381	0.1%	Rank history: #79 in FY2021, #71 in FY2022, #66 in FY2023 and #63 in FY2025; up 4 since FY2023.
63	Stat Waste Stream Services Inc. Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$177,627	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2025 list; up 28 since FY2023.
64	City of Richmond Top agencies SSA (Social Security Administration)	$170,221	0.1%	Rank history: #90 in FY2021, #85 in FY2022, #86 in FY2023 and #79 in FY2025; up 22 since FY2023.
65	Urban Construction Bureau, Sagamihara City 2 awardees Top agencies Army (Department of the Army)	$158,717	0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #77 in FY2023 and #65 in FY2025; up 12 since FY2023.
66	Sarandrea Associates Group Corp Top agencies USAF (Department of the Air Force)	$156,532	0.1%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2025; new.
67	Midwest Environmental Management Services, L.L.C. 2 awardees Top agencies Army (Department of the Army)	$153,383	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023 list and not on the FY2025 list; up 40 since FY2023.
68	White Mountain Apache Tribe 2 awardees Top agencies HHS (Department of Health and Human Services)	$145,744	0.1%	Rank history: #86 in FY2021, not on the FY2022–FY2023 lists and #83 in FY2025; returned.
69	Maryland Environmental Service Top agencies Smithsonian (Smithsonian Institution)	$131,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
70	Suez RV ILE-DE-France Top agencies DOS (Department of State)	$130,663	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	Allied All-City Inc. Top agencies DOI (Department of the Interior)	$125,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Nabd Alasr Trading and Contracting Company Top agencies DOS (Department of State)	$113,620	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2025 list; up 18 since FY2023.
73	Red Fox Environmental Services Inc. Top agencies Navy (Department of the Navy)	$110,379	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Burhani Enterprises Inc. Top agencies USAF (Department of the Air Force)	$106,451	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	Fluid Solutions LLC Top agencies DOS (Department of State)	$99,118	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 30 since FY2023.
76	Bristol Bay Borough Of Top agencies USAF (Department of the Air Force)	$95,000	<0.1%	Rank history: #98 in FY2021, #93 in FY2022, #94 in FY2023 and #74 in FY2025; up 18 since FY2023.
77	M Davidson & Associates Inc. Top agencies Army (Department of the Army)	$94,800	<0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and #72 in FY2025; up 22 since FY2023.
78	Schrass GMBH Top agencies USAF (Department of the Air Force)	$92,775	<0.1%	Rank history: #81 in FY2021, #79 in FY2022, #89 in FY2023 and #75 in FY2025; up 11 since FY2023.
79	Gwendolyn C. Hill Top agencies Army (Department of the Army)	$92,460	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #96 in FY2023 and #73 in FY2025; up 17 since FY2023.
80	City of Alexandria Virginia Sanitation Authority Top agencies WHS (DOD Washington Headquarters Service)	$92,383	<0.1%	Rank history: #75 in FY2021, not on the FY2022 list, #72 in FY2023 and #56 in FY2025; down 8 since FY2023.
81	Manguiri Contracting LLC Top agencies Army (Department of the Army)	$85,194	<0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and not on the FY2025 list; down 46 since FY2023.
82	DOO Beotok Pancevo Top agencies DOS (Department of State)	$82,737	<0.1%	Rank history: #97 in FY2021, #97 in FY2022, #97 in FY2023 and not on the FY2025 list; up 15 since FY2023.
83	Comp Environmental Inc. Top agencies Navy (Department of the Navy)	$81,725	<0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2025; new.
84	Ronielle Howard & Associates LLC Top agencies Army (Department of the Army)	$81,407	<0.1%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; up 17 since FY2023.
85	Oglala Sioux Tribe of Pine Ridge Indian Reservation Top agencies DOI (Department of the Interior)	$80,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Miller Environmental Inc. Top agencies DOI (Department of the Interior)	$76,824	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022, not on the FY2023 list and #80 in FY2025; up 17 since FY2023.
87	South Park Township Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy)	$71,685	<0.1%	Rank history: #99 in FY2021, not on the FY2022 list, #95 in FY2023 and not on the FY2025 list; up 8 since FY2023.
88	City of Monterey Top agencies Army (Department of the Army)	$69,003	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 18 since FY2023.
89	T&L Environmental Service, LLC Top agencies DHS (Department of Homeland Security)	$65,800	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	DC Water & Sewer Authority Top agencies Smithsonian (Smithsonian Institution) JFK (John F. Kennedy Center for the Performing Arts)	$63,820	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
91	ST of MT City of Poplar Top agencies DOI (Department of the Interior)	$53,400	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 32 since FY2023.
92	Environmental Systems Service, Ltd. Top agencies DHS (Department of Homeland Security)	$53,400	<0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; up 22 since FY2023.
93	Broadbent & Associates, Inc. Top agencies Army (Department of the Army)	$52,800	<0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2025; up 20 since FY2023.
94	Sulzer AG Through JWC Environmental Inc. Top agencies DOJ (Department of Justice)	$51,879	<0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; up 34 since FY2023.
95	Blue Ridge Analytical, LLC Top agencies USDA (Department of Agriculture)	$50,100	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 20 since FY2023.
96	Muhan Co., Ltd Top agencies Army (Department of the Army)	$47,606	<0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; up 26 since FY2023.
97	Sakae Nouji Ltd. Top agencies USAF (Department of the Air Force)	$46,967	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 23 since FY2023.
98	City of Jeffersonville Top agencies Commerce (Department of Commerce)	$45,000	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022, not on the FY2023 list and #76 in FY2025; up 19 since FY2023.
99	Koester Associates Inc. Top agencies USAF (Department of the Air Force)	$44,883	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Colorado River Sewage System Joint Venture Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$43,865	<0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; up 31 since FY2023.

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100 of 172 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 $228 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 221320 contractors in FY2024?

1. American Water Works Company Inc. ($50.3M), 2. Aqua Engineers Inc. ($29.4M), 3. Fort Bliss Water Services Company ($24.7M), 4. Veolia Water West Operating Services Inc. ($16.5M), 5. City of Aberdeen ($10.2M), 6. Foreign Utility Consolidated Reporting ($7.69M), 7. Nikken Sogyo Co., Ltd. ($7.41M), 8. Old North Utility Services Inc. ($5.74M), 9. Perc Water Corporation ($4.67M), 10. Tama City Hall ($4.57M).

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