Top 100 Contractors in PSC S112: Electric Services, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Doyon Utilities, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$117,310,258	7.4%	Rank history: #2 in FY2021, #3 in FY2022, #4 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Amber Infrastructure LLC 6 awardees, including City Light & Power Aberdeen, LLC, City Light & Power, Inc. and City Light & Power Jblm LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$115,617,670	7.3%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; up 2 since FY2024.
3	Constellation Newenergy, Inc. 6 awardees, including Baltimore Gas and Electric Company, Peco Energy Company and Pepco Holdings LLC Top agencies GSA (General Services Administration) VA (Department of Veterans Affairs) SSA (Social Security Administration)	$109,927,303	6.9%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; up 17 since FY2024.
4	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$101,981,638	6.4%	Rank history: #3 in FY2021, #4 in FY2022, #1 in FY2023 and #2 in FY2024; down 2 since FY2024.
5	Dominion Resources Inc. 8 awardees, including Dominion Privatization Texas, LLC, Virginia Electric and Power Company and Dominion Privatization Virginia, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) NASA (National Aeronautics and Space Administration)	$83,715,371	5.3%	Rank history: #4 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2024; down 2 since FY2024.
6	WGL Energy Services Inc. 2 awardees, including Washington Gas Light Company Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$73,471,287	4.6%	Rank history: #11 in FY2021, #10 in FY2022, #5 in FY2023 and #5 in FY2024; down 1 since FY2024.
7	Potomac Electric Power Co Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) Smithsonian (Smithsonian Institution)	$72,945,052	4.6%	Rank history: not on the FY2021 list, #48 in FY2022, not on the FY2023 list and #12 in FY2024; up 5 since FY2024.
8	AEP Energy Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$55,122,360	3.5%	Rank history: not on the FY2021 list, #56 in FY2022, not on the FY2023 list and #38 in FY2024; up 30 since FY2024.
9	Korea Electric Power Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$46,714,802	2.9%	Rank history: #22 in FY2021 and not on the FY2022–FY2024 lists; returned.
10	Keenan FT Detrick Energy LLC Top agencies Army (Department of the Army)	$44,694,187	2.8%	Rank history: #6 in FY2021, #8 in FY2022, #11 in FY2023 and #9 in FY2024; down 1 since FY2024.
11	Georgia Power Company 5 awardees, including Alabama Power Company and Mississippi Power Co Top agencies Army (Department of the Army) DOJ (Department of Justice) DHS (Department of Homeland Security)	$43,063,926	2.7%	Rank history: #8 in FY2021, #6 in FY2022, #13 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Direct Energy Business LLC Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration) Treasury (Department of the Treasury)	$37,216,275	2.3%	Rank history: not on the FY2021 list, #55 in FY2022, #42 in FY2023 and #26 in FY2024; up 14 since FY2024.
13	Water Authority Busan Metropolitan City Korea Through Korea Electric Power Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$32,399,287	2.0%	Rank history: #5 in FY2021, #9 in FY2022, #6 in FY2023 and #6 in FY2024; down 7 since FY2024.
14	Engie Resources LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOJ (Department of Justice)	$30,615,937	1.9%	Rank history: #34 in FY2021, #14 in FY2022, #26 in FY2023 and #17 in FY2024; up 3 since FY2024.
15	Puget Sound Energy Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) DOJ (Department of Justice)	$24,747,404	1.6%	Rank history: not on the FY2021–FY2024 lists; up 119 since FY2024.
16	Nextera Energy Inc. Through Gexa Energy, LP Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$23,206,113	1.5%	Rank history: #9 in FY2021, #11 in FY2022, #8 in FY2023 and #10 in FY2024; down 6 since FY2024.
17	Duke Energy Corporation 2 awardees, including Duke Energy Progress, LLC and Duke Energy Carolinas, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOJ (Department of Justice)	$21,932,351	1.4%	Rank history: #19 in FY2021, #7 in FY2022, #9 in FY2023 and #18 in FY2024; up 1 since FY2024.
18	Oklahoma Gas and Electric Company Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) GSA (General Services Administration)	$20,664,536	1.3%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 18 since FY2024.
19	Sho-Me Power Electric Cooperative Top agencies Army (Department of the Army)	$19,091,045	1.2%	Rank history: #17 in FY2021, #22 in FY2022, #23 in FY2023 and #21 in FY2024; up 2 since FY2024.
20	RIO Grande Electric Cooperative, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$18,737,632	1.2%	Rank history: #7 in FY2021, #21 in FY2022, #22 in FY2023 and #19 in FY2024; down 1 since FY2024.
21	Sandhills Utility Services, LLC Top agencies Army (Department of the Army)	$17,707,095	1.1%	Rank history: #13 in FY2021, #17 in FY2022, #15 in FY2023 and #15 in FY2024; down 6 since FY2024.
22	Choctawhatchee Electric Cooperative Inc. Top agencies USAF (Department of the Air Force)	$16,622,502	1.0%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 7 since FY2024.
23	Florida Power & Light Company Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) Army (Department of the Army)	$16,457,518	1.0%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; up 2 since FY2024.
24	Firstenergy Corp. 6 awardees, including The Potomac Edison Co, The Cleveland Electric Illuminating Co and Ohio Edison Company Top agencies DOJ (Department of Justice) NASA (National Aeronautics and Space Administration) Treasury (Department of the Treasury)	$16,453,209	1.0%	Rank history: #12 in FY2021, #19 in FY2022, #14 in FY2023 and #23 in FY2024; down 1 since FY2024.
25	Chugach Electric Association, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$16,293,155	1.0%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #24 in FY2024; down 1 since FY2024.
26	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)	$14,736,291	0.9%	Rank history: #52 in FY2021, #45 in FY2022, #39 in FY2023 and #48 in FY2024; up 22 since FY2024.
27	Gulf Coast Electric Cooperative Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$13,132,141	0.8%	Rank history: #26 in FY2021, #1 in FY2022, #29 in FY2023 and #41 in FY2024; up 14 since FY2024.
28	Hawaiian Electric Company, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOJ (Department of Justice)	$12,861,023	0.8%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; up 12 since FY2024.
29	Monongahela Power Company Top agencies DOJ (Department of Justice) DOE (Department of Energy) Treasury (Department of the Treasury)	$11,957,173	0.8%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 3 since FY2024.
30	Canoochee Electric Membership Corp Top agencies Army (Department of the Army)	$11,613,519	0.7%	Rank history: #37 in FY2021, #42 in FY2022, #34 in FY2023 and #27 in FY2024; down 3 since FY2024.
31	Entergy Louisiana LLC Top agencies Army (Department of the Army) DOT (Department of Transportation) DOI (Department of the Interior)	$11,323,184	0.7%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 2 since FY2024.
32	Nolin Rural Electric Cooperative Corporation Top agencies Army (Department of the Army)	$11,220,809	0.7%	Rank history: #47 in FY2021, #28 in FY2022, #25 in FY2023 and #28 in FY2024; down 4 since FY2024.
33	Pacific Gas and Electric Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) NASA (National Aeronautics and Space Administration)	$9,278,982	0.6%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 9 since FY2024.
34	Brunswick Electric Membership Corporation Top agencies Army (Department of the Army)	$8,855,344	0.6%	Rank history: #88 in FY2021, #79 in FY2022, #79 in FY2023 and #45 in FY2024; up 11 since FY2024.
35	The Navajo Nation Tribal Government Through Navajo Tribal Utility Authority Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$8,278,980	0.5%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #49 in FY2024; up 14 since FY2024.
36	Dominion Privatization South Carolina LLC Top agencies Army (Department of the Army)	$7,930,095	0.5%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 5 since FY2024.
37	SAN Diego Gas & Electric Company Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) DOJ (Department of Justice) GSA (General Services Administration)	$7,534,349	0.5%	Rank history: #45 in FY2021, #43 in FY2022, #55 in FY2023 and #43 in FY2024; up 6 since FY2024.
38	Flint Electric Membership Corp Top agencies Army (Department of the Army)	$7,493,915	0.5%	Rank history: #41 in FY2021, #33 in FY2022, #40 in FY2023 and #35 in FY2024; down 3 since FY2024.
39	City Public Services Board Top agencies USAF (Department of the Air Force)	$7,377,068	0.5%	Rank history: #32 in FY2021, #37 in FY2022, #45 in FY2023 and #37 in FY2024; down 2 since FY2024.
40	PG&E Corporation Through Pacific Energy Fuels Company Top agencies Army (Department of the Army)	$6,812,479	0.4%	Rank history: #18 in FY2021, #20 in FY2022, #21 in FY2023 and #30 in FY2024; down 10 since FY2024.
41	Verendrye Electric Cooperative Inc. Top agencies USAF (Department of the Air Force)	$6,632,144	0.4%	Rank history: #54 in FY2021, #58 in FY2022, #52 in FY2023 and #47 in FY2024; up 6 since FY2024.
42	American Water Enterprises, LLC Top agencies Army (Department of the Army)	$6,122,484	0.4%	Rank history: not on the FY2021 list, #59 in FY2022, #41 in FY2023 and #54 in FY2024; up 12 since FY2024.
43	El Paso Electric Company Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) IBWC (International Boundary and Water Commission U.S.-Mexico)	$5,632,820	0.4%	Rank history: #82 in FY2021, #61 in FY2022, #67 in FY2023 and #78 in FY2024; up 35 since FY2024.
44	Southern Maryland Electric Cooperative, Inc. Top agencies Navy (Department of the Navy)	$5,573,995	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2024 list; up 60 since FY2024.
45	Laclede Electric Cooperative Top agencies Army (Department of the Army)	$5,460,836	0.3%	Rank history: #42 in FY2021, #47 in FY2022, #43 in FY2023 and #55 in FY2024; up 10 since FY2024.
46	UNS Energy Corporation 2 awardees, including Tucson Electric Power Company and Uns Electric, Inc. Top agencies USAF (Department of the Air Force) IBWC (International Boundary and Water Commission U.S.-Mexico) DOJ (Department of Justice)	$5,181,561	0.3%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 15 since FY2024.
47	American Electric Power Company, Inc. Top agencies DOJ (Department of Justice) DOL (Department of Labor) HHS (Department of Health and Human Services)	$5,044,500	0.3%	Rank history: #16 in FY2021, #15 in FY2022, #7 in FY2023 and #8 in FY2024; down 39 since FY2024.
48	Ohio Valley Electrical Services, LLC Through Ohio Valley Electric Corporation Top agencies DOE (Department of Energy)	$4,503,000	0.3%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 26 since FY2024.
49	Pinnacle West Capital Corporation Through Arizona Public Service Company Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) DOJ (Department of Justice)	$4,293,641	0.3%	Rank history: #68 in FY2021, #66 in FY2022, #59 in FY2023 and #59 in FY2024; up 10 since FY2024.
50	Freestate Electric Cooperative, Inc. Top agencies Army (Department of the Army)	$4,104,640	0.3%	Rank history: #65 in FY2021, #64 in FY2022, #46 in FY2023 and #52 in FY2024; up 2 since FY2024.
51	Vandenberg Solar I, LLC Top agencies USAF (Department of the Air Force)	$4,001,602	0.3%	Rank history: #49 in FY2021, #53 in FY2022, #53 in FY2023 and #58 in FY2024; up 7 since FY2024.
52	Omaha Public Power District Top agencies USAF (Department of the Air Force)	$4,000,014	0.3%	Rank history: #57 in FY2021, #72 in FY2022, #58 in FY2023 and #71 in FY2024; up 19 since FY2024.
53	OGE Energy Corp Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$3,990,559	0.3%	Rank history: #24 in FY2021, #23 in FY2022, #20 in FY2023 and #16 in FY2024; down 37 since FY2024.
54	Sumter Electric Cooperative, Inc. Top agencies DOJ (Department of Justice)	$3,921,913	0.2%	Rank history: #59 in FY2021, #60 in FY2022, #48 in FY2023 and #81 in FY2024; up 27 since FY2024.
55	Golden Valley Electric Association Inc. Top agencies Army (Department of the Army)	$3,721,029	0.2%	Rank history: #25 in FY2021, #26 in FY2022, #28 in FY2023 and #22 in FY2024; down 33 since FY2024.
56	Plumas-Sierra Rural Electric Co-Operative Top agencies Army (Department of the Army)	$3,504,858	0.2%	Rank history: #78 in FY2021, #52 in FY2022, #49 in FY2023 and #56 in FY2024; unchanged since FY2024.
57	NRG Business Marketing LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$3,395,906	0.2%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and not on the FY2024 list; returned.
58	Memphis Light Gas & Water Top agencies Treasury (Department of the Treasury)	$3,353,066	0.2%	Rank history: not on the FY2021–FY2024 lists; up 144 since FY2024.
59	Yazoo Valley Electric Power Association Top agencies DOJ (Department of Justice)	$3,341,871	0.2%	Rank history: #56 in FY2021, #62 in FY2022, #61 in FY2023 and #63 in FY2024; up 4 since FY2024.
60	Endesa Energia S.A. Top agencies Navy (Department of the Navy)	$3,292,046	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
61	Consolidated Edison Inc. Through Consolidated Edison Company of New York, Inc. Top agencies DOJ (Department of Justice) SSA (Social Security Administration) Smithsonian (Smithsonian Institution)	$3,239,111	0.2%	Rank history: #74 in FY2021, #51 in FY2022, #60 in FY2023 and #68 in FY2024; up 7 since FY2024.
62	Long Island Power Authority Top agencies DOT (Department of Transportation) Treasury (Department of the Treasury)	$3,133,023	0.2%	Rank history: #100 in FY2021, #91 in FY2022, #76 in FY2023 and #65 in FY2024; up 3 since FY2024.
63	Fluor Corporation Through Fluor Intercontinental, Inc. Top agencies Army (Department of the Army)	$3,132,256	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
64	High West Energy, Inc. Top agencies USAF (Department of the Air Force)	$3,052,248	0.2%	Rank history: #72 in FY2021, #76 in FY2022, #54 in FY2023 and #72 in FY2024; up 8 since FY2024.
65	Vistra Corp. Through Dynegy Energy Services (East), LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$2,893,580	0.2%	Rank history: not on the FY2021–FY2024 lists; up 66 since FY2024.
66	Evergy Missouri West, Inc. Top agencies DOE (Department of Energy) NARA (National Archives and Records Administration) Treasury (Department of the Treasury)	$2,834,773	0.2%	Rank history: not on the FY2021–FY2024 lists; up 105 since FY2024.
67	Rappahannock Electric Cooperative Top agencies Army (Department of the Army) Smithsonian (Smithsonian Institution) DOJ (Department of Justice)	$2,828,503	0.2%	Rank history: not on the FY2021 list, #73 in FY2022, #68 in FY2023 and #66 in FY2024; down 1 since FY2024.
68	IAP World Services, Inc. Top agencies Army (Department of the Army)	$2,799,518	0.2%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
69	Nodak Electric Cooperative Inc. Top agencies USAF (Department of the Air Force)	$2,504,026	0.2%	Rank history: #77 in FY2021, #74 in FY2022, #66 in FY2023 and #69 in FY2024; unchanged since FY2024.
70	Entergy Corporation Through Entergy Arkansas, LLC Top agencies USAF (Department of the Air Force)	$2,418,975	0.2%	Rank history: #20 in FY2021, #27 in FY2022, #10 in FY2023 and #44 in FY2024; down 26 since FY2024.
71	Consortium Management Group, Inc. Top agencies USAF (Department of the Air Force)	$2,325,481	0.1%	Rank history: not on the FY2021 list, #34 in FY2022 and not on the FY2023–FY2024 lists; returned.
72	City of Austin 2 awardees Top agencies Treasury (Department of the Treasury) GSA (General Services Administration)	$2,311,452	0.1%	Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
73	Illinois Power Marketing Company, LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$2,177,960	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	One Gas, Inc. Top agencies DOJ (Department of Justice)	$2,131,942	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	Wellton-Mohawk Co-Op Top agencies Army (Department of the Army)	$2,125,000	0.1%	Rank history: #70 in FY2021, #78 in FY2022, #62 in FY2023 and #76 in FY2024; up 1 since FY2024.
76	Xcel Energy Inc. 4 awardees, including Public Service Company of Colorado and Northern States Power Company Top agencies Treasury (Department of the Treasury) DOE (Department of Energy) DOJ (Department of Justice)	$2,124,670	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Griffiss Utility Services Corporation Top agencies USAF (Department of the Air Force)	$2,124,288	0.1%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and #89 in FY2024; up 12 since FY2024.
78	Kentucky Utilities Company 2 awardees, including PPL Electric Utilities Corporation Top agencies DOJ (Department of Justice) Army (Department of the Army)	$1,999,888	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 1 since FY2024.
79	Berkshire Hathaway Inc. 3 awardees, including Pacificorp, Mid American Energy Company and Sierra Pacific Power Company Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior) HHS (Department of Health and Human Services)	$1,828,499	0.1%	Rank history: #63 in FY2021, #90 in FY2022, #95 in FY2023 and #92 in FY2024; up 13 since FY2024.
80	Redstone Solar I, LLC Top agencies Army (Department of the Army)	$1,805,028	0.1%	Rank history: #89 in FY2021, #80 in FY2022, #83 in FY2023 and #80 in FY2024; unchanged since FY2024.
81	Valley Electric Association Inc. Top agencies USAF (Department of the Air Force)	$1,728,418	0.1%	Rank history: not on the FY2021 list, #57 in FY2022, #30 in FY2023 and #96 in FY2024; up 15 since FY2024.
82	Yakama Power Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$1,658,005	0.1%	Rank history: #84 in FY2021, #84 in FY2022, #70 in FY2023 and not on the FY2024 list; up 29 since FY2024.
83	Dominion Energy South Carolina, Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force)	$1,547,080	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Edison International Top agencies NARA (National Archives and Records Administration) DOT (Department of Transportation) HHS (Department of Health and Human Services)	$1,479,899	0.1%	Rank history: #38 in FY2021, not on the FY2022 list, #64 in FY2023 and #84 in FY2024; unchanged since FY2024.
85	Laboratory Corporation of America Holdings Through NWT Inc. Top agencies Army (Department of the Army)	$1,436,960	0.1%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; unchanged since FY2024.
86	Letterkenny Industrial Development A Top agencies Army (Department of the Army)	$1,400,000	0.1%	Rank history: not on the FY2021 list, #65 in FY2022, #73 in FY2023 and #67 in FY2024; down 19 since FY2024.
87	Evergy Kansas Central Inc. Top agencies DOI (Department of the Interior) DOJ (Department of Justice) NARA (National Archives and Records Administration)	$1,344,735	0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; down 4 since FY2024.
88	City of Gallup Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$1,303,550	0.1%	Rank history: #80 in FY2021, #89 in FY2022, #85 in FY2023 and #75 in FY2024; down 13 since FY2024.
89	Powell Valley Electric Cooperative Top agencies DOJ (Department of Justice)	$1,257,138	0.1%	Rank history: #94 in FY2021, #99 in FY2022, #90 in FY2023 and #94 in FY2024; up 5 since FY2024.
90	Mitomo Co., Ltd. Top agencies Navy (Department of the Navy)	$1,217,324	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Naknek Electric Association Inc. Top agencies USAF (Department of the Air Force)	$1,185,145	0.1%	Rank history: #97 in FY2021, #94 in FY2022, not on the FY2023 list and #93 in FY2024; up 2 since FY2024.
92	Continental Divide Electric Cooperative, Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$1,155,025	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and #95 in FY2024; up 3 since FY2024.
93	Evergy Metro, Inc. Top agencies NARA (National Archives and Records Administration)	$1,153,953	0.1%	Rank history: not on the FY2021–FY2024 lists; up 27 since FY2024.
94	Idaho Power Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) HHS (Department of Health and Human Services)	$1,103,902	0.1%	Rank history: not on the FY2021–FY2024 lists; up 121 since FY2024.
95	Ameren Corporation Through Ameren Services Company Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,095,109	0.1%	Rank history: not on the FY2021–FY2024 lists; up 83 since FY2024.
96	Dynegy Energy Services (EAST) LLC Through Illinois Power Marketing Company, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,081,972	0.1%	Rank history: #43 in FY2021, #32 in FY2022, #44 in FY2023 and #46 in FY2024; down 50 since FY2024.
97	DTE Gas Company Through DTE Energy Company Top agencies DOJ (Department of Justice) Army (Department of the Army)	$1,062,573	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Imperial Irrigation District Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$960,336	0.1%	Rank history: not on the FY2021–FY2024 lists; up 5 since FY2024.
99	Santee Electric Cooperative Inc. Top agencies DOJ (Department of Justice)	$950,181	0.1%	Rank history: not on the FY2021–FY2024 lists; up 11 since FY2024.
100	Florida Public Utilities Company Top agencies DOJ (Department of Justice)	$945,822	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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 $1.59 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.
• Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2024. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2024 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers