Top 100 Contractors in NAICS 221: Utilities, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 221: Utilities, Jul 2025–Jun 2026
Creator: GovTribe

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

The top 10 won 36% of NAICS 221 contract dollars from July 2025 through June 2026

Contract obligations: $3,016,303,719 Net of deobligations, by contracts coded NAICS 221 or a code under it
Contractors: 1,247 Parent companies with an obligation
Largest contractor: American Water Works Company Inc. $219 million, 6.9% of obligations
Data as of: Oct 16, 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 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)	$219,067,058	6.9%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Dominion Energy, Inc. 11 awardees, including Virginia Electric and Power Company, Dominion Privatization Texas, LLC and Dominion Privatization Virginia, LLC Top agencies DOJ (Department of Justice) Army (Department of the Army) Navy (Department of the Navy)	$184,325,878	5.8%	Rank history: #5 in FY2021, #4 in FY2022, #4 in FY2023, #5 in FY2024 and #4 in FY2025; up 6 since Jul 2024–Jun 2025.
3	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$123,317,057	3.9%	Rank history: #3 in FY2021, #3 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
4	City Light & Power FTC LLC 6 awardees, including City Light & Power Aberdeen, LLC, City Light & Power Jblm LLC and City Light & Power, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$112,847,079	3.6%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #6 in FY2025; up 2 since Jul 2024–Jun 2025.
5	Potomac Electric Power Co Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) Treasury (Department of the Treasury)	$106,750,269	3.4%	Rank history: not on the FY2021 list, #75 in FY2022, not on the FY2023 list, #4 in FY2024 and #8 in FY2025; down 1 since Jul 2024–Jun 2025.
6	The Southern Company 9 awardees, including Atlanta Gas Light Company, Mississippi Power Co and Alabama Power Company Top agencies DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$104,920,219	3.3%	Rank history: #12 in FY2021, #10 in FY2022, #15 in FY2023, #16 in FY2024 and #14 in FY2025; up 4 since Jul 2024–Jun 2025.
7	American States Water Company 6 awardees, including Old North Utility Services, Inc., Fort Bliss Water Services Company and American States Utility Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$84,987,015	2.7%	Rank history: not on the FY2021 list, #78 in FY2022, #34 in FY2023, #6 in FY2024 and #9 in FY2025; down 2 since Jul 2024–Jun 2025.
8	Korea Electric Power Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$78,575,103	2.5%	Rank history: #33 in FY2021, not on the FY2022–FY2024 lists and #15 in FY2025; up 24 since Jul 2024–Jun 2025.
9	WGL Holdings Inc. 2 awardees, including WGL Energy Services, Inc. and Washington Gas Light Company Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services) Army (Department of the Army)	$72,651,825	2.3%	Rank history: #7 in FY2021, #8 in FY2022, #6 in FY2023, #8 in FY2024 and #10 in FY2025; up 5 since Jul 2024–Jun 2025.
10	Doyon Utilities, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$63,830,486	2.0%	Rank history: #4 in FY2021, #5 in FY2022, #5 in FY2023, #3 in FY2024 and #5 in FY2025; down 3 since Jul 2024–Jun 2025.
11	Pacific Gas and Electric Company Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOI (Department of the Interior)	$57,872,141	1.8%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #11 in FY2025; up 1 since Jul 2024–Jun 2025.
12	Keenan FT Detrick Energy LLC Top agencies Army (Department of the Army)	$53,392,567	1.7%	Rank history: #9 in FY2021, #11 in FY2022, #17 in FY2023, #14 in FY2024 and #16 in FY2025; up 10 since Jul 2024–Jun 2025.
13	AEP Energy Inc. Top agencies HHS (Department of Health and Human Services)	$52,740,637	1.7%	Rank history: not on the FY2021 list, #96 in FY2022, not on the FY2023 list, #59 in FY2024 and #12 in FY2025; up 10 since Jul 2024–Jun 2025.
14	Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$51,646,513	1.6%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #20 in FY2025; up 43 since Jul 2024–Jun 2025.
15	Direct Energy Business LLC Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$50,739,926	1.6%	Rank history: not on the FY2021 list, #91 in FY2022, #68 in FY2023, #33 in FY2024 and #19 in FY2025; down 2 since Jul 2024–Jun 2025.
16	Exelon Corporation 7 awardees, including Baltimore Gas & Electric Company, Constellation Newenergy, Inc. and Peco Energy Company Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$47,511,063	1.5%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #7 in FY2025; up 56 since Jul 2024–Jun 2025.
17	Black Hills Service Company LLC 2 awardees Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOI (Department of the Interior)	$44,852,789	1.4%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #43 in FY2025; up 53 since Jul 2024–Jun 2025.
18	Vicinity Energy Inc. Top agencies VA (Department of Veterans Affairs)	$42,835,373	1.3%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 149 since Jul 2024–Jun 2025.
19	Constellation Newenergy, Inc. Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration) DOJ (Department of Justice)	$40,329,614	1.3%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #7 in FY2025; down 10 since Jul 2024–Jun 2025.
20	Jacobs Engineering Group Inc. 2 awardees, including Ch2M Hill Constructors, Inc. Top agencies Army (Department of the Army)	$40,295,633	1.3%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023, #19 in FY2024 and #18 in FY2025; down 4 since Jul 2024–Jun 2025.
21	Duke Energy Corporation 4 awardees, including Duke Energy Progress, LLC, Piedmont Natural Gas Company, Inc. and Duke Energy Ohio, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOJ (Department of Justice)	$34,270,949	1.1%	Rank history: #26 in FY2021, #9 in FY2022, #10 in FY2023, #24 in FY2024 and #27 in FY2025; unchanged since Jul 2024–Jun 2025.
22	Consolidated Edison Inc. 2 awardees, including Consolidated Edison Company of New York, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) SSA (Social Security Administration)	$29,804,308	0.9%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023, #45 in FY2024 and #30 in FY2025; up 15 since Jul 2024–Jun 2025.
23	Oklahoma City Water Utilities Trust Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$29,593,152	0.9%	Rank history: not on the FY2021 list, #48 in FY2022, #22 in FY2023, #17 in FY2024 and #23 in FY2025; up 271 since Jul 2024–Jun 2025.
24	Aqua Engineers Inc. Top agencies Army (Department of the Army)	$29,394,464	0.9%	Rank history: #14 in FY2021, #18 in FY2022, #20 in FY2023, #20 in FY2024 and #26 in FY2025; down 4 since Jul 2024–Jun 2025.
25	Tokyo Gas Co.,Ltd. Top agencies Navy (Department of the Navy)	$27,164,141	0.9%	Rank history: not on the FY2021 list, #13 in FY2022, #13 in FY2023, #37 in FY2024 and #21 in FY2025; up 1 since Jul 2024–Jun 2025.
26	Puget Sound Energy Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$26,362,359	0.8%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; up 117 since Jul 2024–Jun 2025.
27	Oklahoma Gas and Electric Company Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) GSA (General Services Administration)	$24,932,463	0.8%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and #35 in FY2025; down 10 since Jul 2024–Jun 2025.
28	Gulf Coast Electric Cooperative Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$24,717,063	0.8%	Rank history: #40 in FY2021, #2 in FY2022, #45 in FY2023, #69 in FY2024 and #54 in FY2025; up 50 since Jul 2024–Jun 2025.
29	Hawaiian Electric Company, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOJ (Department of Justice)	$24,415,965	0.8%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #55 in FY2025; up 29 since Jul 2024–Jun 2025.
30	American Water Enterprises, LLC Top agencies Army (Department of the Army)	$23,601,284	0.7%	Rank history: #19 in FY2021, #27 in FY2022, #25 in FY2023, #32 in FY2024 and #32 in FY2025; down 3 since Jul 2024–Jun 2025.
31	Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy)	$22,270,438	0.7%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #40 in FY2025; up 2 since Jul 2024–Jun 2025.
32	Augusta-Richmond County Government Top agencies Army (Department of the Army)	$22,084,011	0.7%	Rank history: #36 in FY2021, #40 in FY2022, #60 in FY2023, #41 in FY2024 and #31 in FY2025; up 10 since Jul 2024–Jun 2025.
33	Sho-Me Power Electric Cooperative Top agencies Army (Department of the Army)	$21,572,454	0.7%	Rank history: #25 in FY2021, #33 in FY2022, #38 in FY2023, #31 in FY2024 and #39 in FY2025; up 3 since Jul 2024–Jun 2025.
34	Emerald Coast Utility Services Inc. Top agencies USAF (Department of the Air Force)	$21,064,102	0.7%	Rank history: #28 in FY2021, #32 in FY2022, #33 in FY2023, #30 in FY2024 and #36 in FY2025; down 4 since Jul 2024–Jun 2025.
35	United Energy Corporation Through United Energy Trading, LLC Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$20,752,032	0.7%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 52 since Jul 2024–Jun 2025.
36	Schutt Industries of Clintonville, Wis., Inc. Top agencies Army (Department of the Army)	$20,094,180	0.6%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 5 since Jul 2024–Jun 2025.
37	Engie Resources LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) SSA (Social Security Administration)	$18,528,084	0.6%	Rank history: #60 in FY2021, #17 in FY2022, #36 in FY2023, #25 in FY2024 and #24 in FY2025; down 12 since Jul 2024–Jun 2025.
38	RIO Grande Electric Cooperative, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$18,059,318	0.6%	Rank history: #15 in FY2021, #25 in FY2022, #32 in FY2023, #29 in FY2024 and #38 in FY2025; down 9 since Jul 2024–Jun 2025.
39	National Grid USA Service Company, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOT (Department of Transportation)	$17,826,325	0.6%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and not on the FY2025 list; up 47 since Jul 2024–Jun 2025.
40	Sunstate Environmental Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$17,520,666	0.6%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
41	Nextera Energy Inc. 2 awardees, including Gexa Energy, LP and Pivotal Utility Holdings Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$16,427,085	0.5%	Rank history: #13 in FY2021, #15 in FY2022, #11 in FY2023, #18 in FY2024 and #29 in FY2025; down 13 since Jul 2024–Jun 2025.
42	Choctawhatchee Electric Cooperative Inc. Top agencies USAF (Department of the Air Force)	$16,058,413	0.5%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #46 in FY2025; up 1 since Jul 2024–Jun 2025.
43	The AES Corporation 2 awardees, including The Dayton Power and Light Company Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$15,790,640	0.5%	Rank history: #86 in FY2021, #71 in FY2022, #66 in FY2023, #82 in FY2024 and #52 in FY2025; up 36 since Jul 2024–Jun 2025.
44	Florida Power & Light Company Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) Army (Department of the Army)	$15,753,757	0.5%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #45 in FY2025; up 1 since Jul 2024–Jun 2025.
45	Buyo Gas Co.,Ltd. Top agencies USAF (Department of the Air Force)	$15,490,691	0.5%	Rank history: #66 in FY2021, #36 in FY2022, #37 in FY2023, #44 in FY2024 and #48 in FY2025; down 7 since Jul 2024–Jun 2025.
46	Fort Riley Utility Services, Inc. Top agencies Army (Department of the Army)	$15,056,232	0.5%	Rank history: #24 in FY2021, #28 in FY2022, #26 in FY2023, #21 in FY2024 and #44 in FY2025; down 15 since Jul 2024–Jun 2025.
47	Base Utilities Inc. Top agencies USAF (Department of the Air Force)	$15,014,528	0.5%	Rank history: #29 in FY2021, #47 in FY2022, #43 in FY2023, #43 in FY2024 and #53 in FY2025; down 3 since Jul 2024–Jun 2025.
48	Canoochee Electric Membership Corp Top agencies Army (Department of the Army)	$14,597,765	0.5%	Rank history: #43 in FY2021, #46 in FY2022, #50 in FY2023, #46 in FY2024 and #49 in FY2025; unchanged since Jul 2024–Jun 2025.
49	NRG Business Marketing LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) GSA (General Services Administration)	$13,752,810	0.4%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, not on the FY2024 list and #33 in FY2025; down 25 since Jul 2024–Jun 2025.
50	Nikken Sogyo Co., Ltd. Top agencies Navy (Department of the Navy)	$13,237,604	0.4%	Rank history: #59 in FY2021, #72 in FY2022, #55 in FY2023, #71 in FY2024 and #56 in FY2025; down 4 since Jul 2024–Jun 2025.
51	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)	$12,329,356	0.4%	Rank history: #32 in FY2021, #37 in FY2022, #39 in FY2023, #34 in FY2024 and #37 in FY2025; down 4 since Jul 2024–Jun 2025.
52	Eneos Corporation Top agencies USAF (Department of the Air Force)	$12,227,922	0.4%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #57 in FY2025; down 3 since Jul 2024–Jun 2025.
53	Entergy Louisiana LLC Top agencies Army (Department of the Army) DOT (Department of Transportation) DOI (Department of the Interior)	$11,782,508	0.4%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #58 in FY2025; up 2 since Jul 2024–Jun 2025.
54	Bairco Construction Inc. Top agencies DOI (Department of the Interior)	$11,628,532	0.4%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
55	Samchully Co.,Ltd. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$10,952,615	0.3%	Rank history: not on the FY2021 list, #54 in FY2022, #47 in FY2023, #64 in FY2024 and #62 in FY2025; up 1 since Jul 2024–Jun 2025.
56	County of Hardin Through Hardin County Water District NO. 1 Top agencies Army (Department of the Army)	$10,661,301	0.3%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; down 22 since Jul 2024–Jun 2025.
57	Omega Pipeline Company, LLC Top agencies Army (Department of the Army)	$10,603,842	0.3%	Rank history: #47 in FY2021, #53 in FY2022, #58 in FY2023, #68 in FY2024 and #64 in FY2025; up 8 since Jul 2024–Jun 2025.
58	The Potomac Edison Co 6 awardees, including Ohio Edison Company, Jersey Central Power & Light Co and Metropolitan Edison Co Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$10,518,472	0.3%	Rank history: #18 in FY2021, #22 in FY2022, #21 in FY2023, #38 in FY2024 and #47 in FY2025; down 23 since Jul 2024–Jun 2025.
59	Enstar Natural Gas Company, LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$10,512,313	0.3%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #50 in FY2025; down 20 since Jul 2024–Jun 2025.
60	Enspire Energy, LLC Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$10,265,685	0.3%	Rank history: not on the FY2021–FY2025 lists; up 53 since Jul 2024–Jun 2025.
61	Flint Electric Membership Corp Top agencies Army (Department of the Army)	$10,120,287	0.3%	Rank history: #72 in FY2021, #51 in FY2022, #67 in FY2023, #55 in FY2024 and #76 in FY2025; up 20 since Jul 2024–Jun 2025.
62	Central Coast Water Authority Top agencies USAF (Department of the Air Force)	$9,652,762	0.3%	Rank history: #56 in FY2021, #79 in FY2022, #65 in FY2023, #66 in FY2024 and #69 in FY2025; up 1 since Jul 2024–Jun 2025.
63	SES Energy Services LLC Top agencies Army (Department of the Army)	$9,538,130	0.3%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
64	City of Aberdeen Top agencies Army (Department of the Army)	$9,340,028	0.3%	Rank history: #67 in FY2021, #74 in FY2022, #73 in FY2023, #54 in FY2024 and #75 in FY2025; down 3 since Jul 2024–Jun 2025.
65	Bay State Utility Services, LLC Top agencies USAF (Department of the Air Force)	$9,192,098	0.3%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Jul 2024–Jun 2025.
66	Teco Energy Inc. 2 awardees, including New Mexico Gas Company, Inc. and Peoples Gas System, Inc. Top agencies GSA (General Services Administration) USAF (Department of the Air Force) DOI (Department of the Interior)	$9,143,923	0.3%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 110 since Jul 2024–Jun 2025.
67	Clear Lake City Water Authority Top agencies NASA (National Aeronautics and Space Administration)	$8,975,961	0.3%	Rank history: not on the FY2021–FY2025 lists; up 155 since Jul 2024–Jun 2025.
68	Brunswick Electric Membership Corporation Top agencies Army (Department of the Army)	$8,855,344	0.3%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #67 in FY2025; up 6 since Jul 2024–Jun 2025.
69	Florida Governmental Utility Authority Top agencies USAF (Department of the Air Force)	$8,717,346	0.3%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 8 since Jul 2024–Jun 2025.
70	Southwest Gas Corporation Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$8,030,110	0.3%	Rank history: not on the FY2021–FY2025 lists; up 139 since Jul 2024–Jun 2025.
71	The Navajo Nation Tribal Government Through Navajo Tribal Utility Authority Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$8,024,282	0.3%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023, #62 in FY2024 and #63 in FY2025; down 19 since Jul 2024–Jun 2025.
72	Georgia Power Company Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Army (Department of the Army)	$7,611,498	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
73	Monongahela Power Company Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$7,591,303	0.2%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #59 in FY2025; down 20 since Jul 2024–Jun 2025.
74	Ohio Valley Electrical Services, LLC Through Ohio Valley Electric Corporation Top agencies DOE (Department of Energy)	$7,495,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 36 since Jul 2024–Jun 2025.
75	City of Wildwood City Hall Top agencies DOJ (Department of Justice)	$7,138,908	0.2%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 34 since Jul 2024–Jun 2025.
76	City Public Services Board Top agencies USAF (Department of the Air Force)	$7,099,923	0.2%	Rank history: #51 in FY2021, #60 in FY2022, #77 in FY2023, #58 in FY2024 and #77 in FY2025; down 17 since Jul 2024–Jun 2025.
77	Sage Energy Trading LLC Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) DOE (Department of Energy)	$6,862,102	0.2%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023, #77 in FY2024 and not on the FY2025 list; up 29 since Jul 2024–Jun 2025.
78	Verendrye Electric Cooperative Inc. Top agencies USAF (Department of the Air Force)	$6,649,824	0.2%	Rank history: #91 in FY2021, #99 in FY2022, #96 in FY2023, #80 in FY2024 and #81 in FY2025; up 5 since Jul 2024–Jun 2025.
79	Nolin Rural Electric Cooperative Corporation Top agencies Army (Department of the Army)	$6,205,630	0.2%	Rank history: #76 in FY2021, #43 in FY2022, #40 in FY2023, #47 in FY2024 and #61 in FY2025; down 29 since Jul 2024–Jun 2025.
80	American Electric Power Company, Inc. 2 awardees Top agencies DOJ (Department of Justice) DOL (Department of Labor) HHS (Department of Health and Human Services)	$6,171,160	0.2%	Rank history: #11 in FY2021, #19 in FY2022, #9 in FY2023, #12 in FY2024 and #84 in FY2025; down 12 since Jul 2024–Jun 2025.
81	Firstenergy Pennsylvania Electric Company Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOE (Department of Energy)	$6,111,782	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	Centerpoint Energy Resources Corp. 5 awardees, including Vectren Energy Delivery of Ohio, LLC, Nextera Energy Services Gas, LLC and Mobile Energy Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USAF (Department of the Air Force)	$5,955,584	0.2%	Rank history: not on the FY2021–FY2025 lists; up 23 since Jul 2024–Jun 2025.
83	South Granville Water & Sewer Auth Top agencies DOJ (Department of Justice)	$5,806,262	0.2%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 31 since Jul 2024–Jun 2025.
84	Dominion Energy South Carolina, Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army) Navy (Department of the Navy)	$5,660,826	0.2%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 23 since Jul 2024–Jun 2025.
85	Laclede Electric Cooperative Top agencies Army (Department of the Army)	$5,609,093	0.2%	Rank history: #73 in FY2021, #73 in FY2022, #69 in FY2023, #97 in FY2024 and #89 in FY2025; up 4 since Jul 2024–Jun 2025.
86	Illinois Power Marketing Company, LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$5,424,508	0.2%	Rank history: not on the FY2021–FY2025 lists; up 91 since Jul 2024–Jun 2025.
87	Sumter Electric Cooperative, Inc. Top agencies DOJ (Department of Justice)	$5,199,390	0.2%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and not on the FY2024–FY2025 lists; up 58 since Jul 2024–Jun 2025.
88	Freestate Electric Cooperative, Inc. Top agencies Army (Department of the Army)	$5,090,061	0.2%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, #86 in FY2024 and not on the FY2025 list; up 11 since Jul 2024–Jun 2025.
89	Hosei Co., Ltd. Top agencies Navy (Department of the Navy)	$5,001,223	0.2%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #96 in FY2025; up 9 since Jul 2024–Jun 2025.
90	Riverbend Water Resources District Top agencies Army (Department of the Army)	$4,958,000	0.2%	Rank history: #80 in FY2021, #76 in FY2022, #76 in FY2023, #65 in FY2024 and #60 in FY2025; down 39 since Jul 2024–Jun 2025.
91	Nikken-Metawater JV Top agencies Navy (Department of the Navy)	$4,845,757	0.2%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 12 since Jul 2024–Jun 2025.
92	Cooperative Utility Services LLC Top agencies USAF (Department of the Air Force)	$4,830,803	0.2%	Rank history: not on the FY2021–FY2025 lists; up 45 since Jul 2024–Jun 2025.
93	Southern Maryland Electric Cooperative, Inc. Top agencies Navy (Department of the Navy)	$4,811,916	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, not on the FY2024 list and #87 in FY2025; up 7 since Jul 2024–Jun 2025.
94	Tama City Hall Top agencies USAF (Department of the Air Force)	$4,748,901	0.1%	Rank history: not on the FY2021 list, #70 in FY2022, #87 in FY2023, #90 in FY2024 and #86 in FY2025; down 10 since Jul 2024–Jun 2025.
95	GTA Containers, LLC Top agencies Army (Department of the Army)	$4,689,008	0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #78 in FY2025; up 16 since Jul 2024–Jun 2025.
96	Pinnacle West Capital Corporation Through Arizona Public Service Company Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DOI (Department of the Interior)	$4,684,825	0.1%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #100 in FY2024 and not on the FY2025 list; down 1 since Jul 2024–Jun 2025.
97	Eversource Energy 2 awardees, including Eversource Energy Service Company and Nstar Electric Company Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) NARA (National Archives and Records Administration)	$4,659,843	0.1%	Rank history: not on the FY2021–FY2025 lists; up 21 since Jul 2024–Jun 2025.
98	Antelope Valley East Kern Water Agency Top agencies USAF (Department of the Air Force)	$4,582,136	0.1%	Rank history: #100 in FY2021, #100 in FY2022 and not on the FY2023–FY2025 lists; up 27 since Jul 2024–Jun 2025.
99	KLJ Services LLC Top agencies Navy (Department of the Navy)	$4,494,085	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Pyeongtaek-Si Water and Sewage Business Place Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$4,469,229	0.1%	Rank history: #74 in FY2021, not on the FY2022–FY2024 lists and #88 in FY2025; down 3 since Jul 2024–Jun 2025.

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100 of 1,247 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 221

Code	Net obligations	Largest contractor
2211 Electric Power Generation, Transmission and Distribution	$1,720,745,862	Dominion Energy, Inc.
2213 Water, Sewage and Other Systems	$949,514,465	American Water Works Company Inc.
2212 Natural Gas Distribution	$346,043,392	The Southern Company

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 $3.18 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 NAICS 221 contractors in Jul 2025–Jun 2026?

1. American Water Works Company Inc. ($219M), 2. Dominion Energy, Inc. ($184M), 3. Foreign Utility Consolidated Reporting ($123M), 4. City Light & Power FTC LLC ($113M), 5. Potomac Electric Power Co ($107M), 6. The Southern Company ($105M), 7. American States Water Company ($85M), 8. Korea Electric Power Corporation ($78.6M), 9. WGL Holdings Inc. ($72.7M), 10. Doyon Utilities, LLC ($63.8M).

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