Top 100 Contractors in PSC S114: Water Services, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	American Water Works Company Inc. 7 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) DOJ (Department of Justice)	$185,163,157	29.8%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Old North Utility Services Inc. 5 awardees, including Old Dominion Utility Services, Inc., Terrapin 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)	$66,337,987	10.7%	Rank history: #2 in FY2021, #2 in FY2022, #6 in FY2024 and not on the FY2025 list; unchanged since FY2022.
3	Oklahoma City Water Utilities Trust Top agencies USAF (Department of the Air Force)	$25,578,798	4.1%	Rank history: not on the FY2021 list, #10 in FY2022, #3 in FY2024 and #4 in FY2025; up 7 since FY2022.
4	Fort Riley Utility Services, Inc. Top agencies Army (Department of the Army)	$20,028,532	3.2%	Rank history: #4 in FY2021, #3 in FY2022, #5 in FY2024 and #10 in FY2025; down 1 since FY2022.
5	Emerald Coast Utility Services Inc. Top agencies USAF (Department of the Air Force)	$17,597,988	2.8%	Rank history: #5 in FY2021, #5 in FY2022, #8 in FY2024 and #7 in FY2025; unchanged since FY2022.
6	Fort Bliss Water Services Company Top agencies Army (Department of the Army)	$17,595,504	2.8%	Rank history: not on the FY2021 list, #14 in FY2022, #2 in FY2024 and #2 in FY2025; up 8 since FY2022.
7	Tetra Tech, Inc. Through Tetra TECH ES, Inc. Top agencies USAID (US Agency for International Development)	$17,000,000	2.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
8	Washington Suburban Sanitary Commission Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration) Smithsonian (Smithsonian Institution)	$16,001,789	2.6%	Rank history: #11 in FY2021, #6 in FY2022, #9 in FY2024 and #8 in FY2025; down 2 since FY2022.
9	Jacobs Engineering Group Inc. Through Ch2M Hill Constructors, Inc. Top agencies Army (Department of the Army)	$14,757,138	2.4%	Rank history: #3 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
10	Base Utilities Inc. Top agencies USAF (Department of the Air Force)	$14,193,013	2.3%	Rank history: #6 in FY2021, #9 in FY2022, #11 in FY2024 and #11 in FY2025; down 1 since FY2022.
11	Jacobs Government Services Company Through Ch2M Hill Constructors, Inc. Top agencies Army (Department of the Army)	$13,249,589	2.1%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and #3 in FY2025; new.
12	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$12,444,633	2.0%	Rank history: #10 in FY2021, #8 in FY2022, #12 in FY2024 and #9 in FY2025; down 4 since FY2022.
13	Augusta-Richmond County Government Top agencies Army (Department of the Army)	$8,802,885	1.4%	Rank history: #8 in FY2021, #7 in FY2022, #10 in FY2024 and #5 in FY2025; down 6 since FY2022.
14	American Water Enterprises, LLC Top agencies Army (Department of the Army)	$8,304,560	1.3%	Rank history: #19 in FY2021, #20 in FY2022, #22 in FY2024 and #19 in FY2025; up 6 since FY2022.
15	Pural Water Specialty Co. , Inc. Top agencies Army (Department of the Army)	$7,550,909	1.2%	Rank history: #14 in FY2021, #22 in FY2022, #18 in FY2024 and #22 in FY2025; up 7 since FY2022.
16	Central Coast Water Authority Top agencies USAF (Department of the Air Force)	$7,337,104	1.2%	Rank history: #15 in FY2021, #19 in FY2022, #15 in FY2024 and #14 in FY2025; up 3 since FY2022.
17	City of Aberdeen Top agencies Army (Department of the Army)	$6,030,552	1.0%	Rank history: #16 in FY2021, #16 in FY2022, #13 in FY2024 and #15 in FY2025; down 1 since FY2022.
18	Florida Governmental Utility Authority Top agencies USAF (Department of the Air Force)	$5,938,993	1.0%	Rank history: #7 in FY2021, #11 in FY2022, #16 in FY2024 and not on the FY2025 list; down 7 since FY2022.
19	Riverbend Water Resources District Top agencies Army (Department of the Army)	$5,907,589	0.9%	Rank history: #20 in FY2021, #18 in FY2022, #14 in FY2024 and #12 in FY2025; down 1 since FY2022.
20	Fayza-Lead Construction Inc. Top agencies VA (Department of Veterans Affairs)	$4,972,894	0.8%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #77 in FY2025; new.
21	Tama City Hall Top agencies USAF (Department of the Air Force)	$4,532,169	0.7%	Rank history: not on the FY2021 list, #15 in FY2022, #17 in FY2024 and #17 in FY2025; down 6 since FY2022.
22	Hardin County Water District NO. 1 Top agencies Army (Department of the Army)	$4,110,862	0.7%	Rank history: #12 in FY2021, #13 in FY2022, #25 in FY2024 and not on the FY2025 list; down 9 since FY2022.
23	Board of Water Commissioners of Columbus Top agencies Army (Department of the Army)	$4,053,664	0.7%	Rank history: #65 in FY2021, #79 in FY2022, #35 in FY2024 and #37 in FY2025; up 56 since FY2022.
24	South Granville Water & Sewer Auth Top agencies DOJ (Department of Justice)	$3,845,184	0.6%	Rank history: #27 in FY2021, #25 in FY2022, #23 in FY2024 and #20 in FY2025; up 1 since FY2022.
25	Antelope Valley East Kern Water Agency Top agencies USAF (Department of the Air Force)	$3,604,240	0.6%	Rank history: #23 in FY2021, #23 in FY2022, #24 in FY2024 and #24 in FY2025; down 2 since FY2022.
26	Deloitte Consulting LLP Top agencies USAID (US Agency for International Development)	$3,550,000	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	City of Leavenworth Top agencies DOJ (Department of Justice)	$3,389,734	0.5%	Rank history: #66 in FY2021, #84 in FY2022, #60 in FY2024 and not on the FY2025 list; up 57 since FY2022.
28	California Water Service Group Through California Water Service Co Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DCMA (Defense Contract Management Agency)	$2,909,258	0.5%	Rank history: #25 in FY2021, #34 in FY2022, #19 in FY2024 and #25 in FY2025; up 6 since FY2022.
29	City of Jacksonville Ar Through City of Jacksonville Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,864,092	0.5%	Rank history: not on the FY2021 list, #35 in FY2022, #36 in FY2024 and #36 in FY2025; up 6 since FY2022.
30	Pyeongtaek-Si Water and Sewage Business Place Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,684,953	0.4%	Rank history: #17 in FY2021, #24 in FY2022, #28 in FY2024 and #18 in FY2025; down 6 since FY2022.
31	Harnett, County of North Carolina Top agencies Army (Department of the Army)	$2,682,347	0.4%	Rank history: #31 in FY2021, #46 in FY2022, #26 in FY2024 and #27 in FY2025; up 15 since FY2022.
32	Fayetteville City of Through Fayetteville Public Works Commission Top agencies Army (Department of the Army)	$2,611,100	0.4%	Rank history: #26 in FY2021, #26 in FY2022, #29 in FY2024 and not on the FY2025 list; down 6 since FY2022.
33	Beckley Sanitary Board Top agencies DOJ (Department of Justice)	$2,195,914	0.4%	Rank history: not on the FY2021 list, #32 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
34	Northeast Ohio Regional Sewer District Top agencies NASA (National Aeronautics and Space Administration)	$2,002,584	0.3%	Rank history: #33 in FY2021, #43 in FY2022, #31 in FY2024 and #28 in FY2025; up 9 since FY2022.
35	Jungbu Water Supply Office Top agencies Army (Department of the Army)	$1,850,163	0.3%	Rank history: #29 in FY2021, #30 in FY2022, #32 in FY2024 and #29 in FY2025; down 5 since FY2022.
36	City of Wildwood City Hall Top agencies DOJ (Department of Justice)	$1,843,556	0.3%	Rank history: #30 in FY2021, #31 in FY2022, #30 in FY2024 and #21 in FY2025; down 5 since FY2022.
37	DC Water & Sewer Authority Top agencies Treasury (Department of the Treasury) CFPB (Consumer Financial Protection Bureau) HUD (Department of Housing and Urban Development)	$1,833,951	0.3%	Rank history: #77 in FY2021, #54 in FY2022, #79 in FY2024 and #33 in FY2025; up 17 since FY2022.
38	City of Milan Top agencies DOJ (Department of Justice)	$1,801,926	0.3%	Rank history: not on the FY2021 list, #29 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
39	Autoridad DE Acueductos Y Alcantarillados DE PR Top agencies DOJ (Department of Justice)	$1,753,986	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 82 since FY2022.
40	City of Atlanta Top agencies DOJ (Department of Justice)	$1,747,020	0.3%	Rank history: #21 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
41	County of Miami-Dade 2 awardees, including Miami-Dade Water & Sewer Dept and Miami-Dade County Top agencies DOJ (Department of Justice) Army (Department of the Army)	$1,577,007	0.3%	Rank history: #22 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
42	City of Aliceville Top agencies DOJ (Department of Justice)	$1,560,902	0.3%	Rank history: #44 in FY2021, #47 in FY2022, #33 in FY2024 and #34 in FY2025; up 5 since FY2022.
43	San Antonio River Authority Top agencies USAF (Department of the Air Force)	$1,553,596	0.2%	Rank history: #46 in FY2021, #48 in FY2022, #59 in FY2024 and #51 in FY2025; up 5 since FY2022.
44	Raleigh County Public Service District Top agencies DOJ (Department of Justice) DOL (Department of Labor)	$1,550,100	0.2%	Rank history: #40 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
45	Public Service Commission of Yazoo City 2 awardees Top agencies DOJ (Department of Justice)	$1,426,568	0.2%	Rank history: #43 in FY2021, #56 in FY2022, #38 in FY2024 and #39 in FY2025; up 11 since FY2022.
46	New York City of Through New York City Water Board Top agencies DOJ (Department of Justice) Smithsonian (Smithsonian Institution) SSA (Social Security Administration)	$1,396,867	0.2%	Rank history: #59 in FY2021, #87 in FY2022 and not on the FY2024–FY2025 lists; up 41 since FY2022.
47	City of Fort Worth Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury)	$1,357,156	0.2%	Rank history: #41 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
48	Mccreary County Water District Top agencies DOJ (Department of Justice) USDA (Department of Agriculture)	$1,332,736	0.2%	Rank history: #51 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
49	Kyotango City Top agencies Army (Department of the Army)	$1,273,405	0.2%	Rank history: not on the FY2021 list, #45 in FY2022, #42 in FY2024 and #38 in FY2025; down 4 since FY2022.
50	City of Cocoa Top agencies NASA (National Aeronautics and Space Administration)	$1,228,892	0.2%	Rank history: #96 in FY2021, #55 in FY2022, #43 in FY2024 and #35 in FY2025; up 5 since FY2022.
51	Ch2M Hill Constructors, Inc. Top agencies Army (Department of the Army)	$1,186,307	0.2%	Rank history: #88 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 39 since FY2022.
52	Sheridan City of Through City of Sheridan Top agencies DOJ (Department of Justice)	$1,169,300	0.2%	Rank history: #67 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
53	Edgefield County Water & Sewer Authority Top agencies DOJ (Department of Justice)	$1,127,918	0.2%	Rank history: #60 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
54	Clear Lake City Water Authority Top agencies NASA (National Aeronautics and Space Administration)	$1,119,519	0.2%	Rank history: #62 in FY2021, #75 in FY2022, #27 in FY2024 and #43 in FY2025; up 21 since FY2022.
55	City of Welch Top agencies DOJ (Department of Justice)	$1,103,356	0.2%	Rank history: not on the FY2021 list, #61 in FY2022, #40 in FY2024 and #44 in FY2025; up 6 since FY2022.
56	LOS Angeles City of Through LOS Angeles Department of Water & Power Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,065,527	0.2%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
57	City of Greenville Top agencies DOJ (Department of Justice)	$1,010,758	0.2%	Rank history: #61 in FY2021, #69 in FY2022, #48 in FY2024 and #61 in FY2025; up 12 since FY2022.
58	Herlong Public Utility District Top agencies DOJ (Department of Justice) Army (Department of the Army)	$1,008,679	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #45 in FY2024 and #41 in FY2025; up 7 since FY2022.
59	Town of Pollock Top agencies DOJ (Department of Justice)	$1,005,130	0.2%	Rank history: #37 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
60	Lee County VA Through County of Lee Top agencies DOJ (Department of Justice)	$1,002,073	0.2%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and not on the FY2025 list; up 82 since FY2022.
61	Municipality of Anchorage Top agencies USAF (Department of the Air Force)	$994,372	0.2%	Rank history: not on the FY2021 list, #63 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
62	Texarkana Water Utilities Top agencies DOJ (Department of Justice)	$976,338	0.2%	Rank history: #63 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
63	Mickan Generalbaugesellschaft Amberg MBH & Co. KG Top agencies Army (Department of the Army)	$958,262	0.2%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2024 and #45 in FY2025; new.
64	City of Forrest City Top agencies DOJ (Department of Justice)	$946,205	0.2%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and not on the FY2025 list; new.
65	American Engineering Corporation Top agencies Army (Department of the Army)	$939,205	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	Preston County Public Service District NO4 Top agencies DOJ (Department of Justice)	$932,113	0.1%	Rank history: #57 in FY2021, #60 in FY2022, #46 in FY2024 and #40 in FY2025; down 6 since FY2022.
67	City of Danbury CT Top agencies DOJ (Department of Justice)	$890,000	0.1%	Rank history: #50 in FY2021, #64 in FY2022, #53 in FY2024 and #50 in FY2025; down 3 since FY2022.
68	City of Prestonsburg Through Prestonsburg City Utilities Commission Top agencies DOJ (Department of Justice)	$851,571	0.1%	Rank history: #84 in FY2021, #73 in FY2022, #69 in FY2024 and not on the FY2025 list; up 5 since FY2022.
69	City of Tucson Top agencies DOJ (Department of Justice)	$843,142	0.1%	Rank history: #47 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
70	Schuylkill County Municipal Authority Top agencies DOJ (Department of Justice)	$774,466	0.1%	Rank history: #80 in FY2021, #72 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
71	Utility Systems of Georgia, Inc. Top agencies Army (Department of the Army)	$769,286	0.1%	Rank history: #72 in FY2021, #76 in FY2022, #50 in FY2024 and #46 in FY2025; up 5 since FY2022.
72	City of Beaumont Top agencies DOJ (Department of Justice)	$757,022	0.1%	Rank history: not on the FY2021 list, #41 in FY2022 and not on the FY2024–FY2025 lists; down 31 since FY2022.
73	City of El Reno Top agencies DOJ (Department of Justice)	$756,502	0.1%	Rank history: #74 in FY2021, #66 in FY2022, #49 in FY2024 and #48 in FY2025; down 7 since FY2022.
74	Columbiana County Top agencies DOJ (Department of Justice)	$754,705	0.1%	Rank history: #75 in FY2021, not on the FY2022 list, #51 in FY2024 and #47 in FY2025; up 149 since FY2022.
75	Evoqua Water Technologies LLC Top agencies Navy (Department of the Navy)	$694,280	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	The Navajo Nation Tribal Government Through Navajo Tribal Utility Authority Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$671,062	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and #54 in FY2025; new.
77	City of Philadelphia 2 awardees, including City of Philadelphia Department of Revenue Water Revenue Bureau B0610658047 Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury)	$667,178	0.1%	Rank history: #68 in FY2021, #68 in FY2022, not on the FY2024 list and #64 in FY2025; down 9 since FY2022.
78	Woodway Water Authority Top agencies DOJ (Department of Justice)	$667,018	0.1%	Rank history: #78 in FY2021, #86 in FY2022, #55 in FY2024 and #52 in FY2025; up 8 since FY2022.
79	Gilmer County Public Service District Top agencies DOJ (Department of Justice)	$635,530	0.1%	Rank history: #52 in FY2021, #59 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
80	City of Manchester Top agencies DOJ (Department of Justice)	$630,764	0.1%	Rank history: #54 in FY2021, #77 in FY2022, #58 in FY2024 and #60 in FY2025; down 3 since FY2022.
81	Water Authority Busan Metropolitan City Korea 6 awardees, including Daegu Metropolitan City, Headquarters, Daegu Waterworks and Headquarters of Pohang Waterworks Top agencies Army (Department of the Army)	$617,315	0.1%	Rank history: #93 in FY2021, #80 in FY2022, #62 in FY2024 and not on the FY2025 list; down 1 since FY2022.
82	City of Oakdale Top agencies DOJ (Department of Justice)	$612,481	0.1%	Rank history: #87 in FY2021, #85 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
83	Coolco LLC Top agencies GSA (General Services Administration)	$602,726	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	City & County of San Francisco Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Treasury (Department of the Treasury)	$600,130	0.1%	Rank history: #38 in FY2021, #40 in FY2022, #73 in FY2024 and not on the FY2025 list; down 44 since FY2022.
85	City of Newport News Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$579,913	0.1%	Rank history: #99 in FY2021, #95 in FY2022, #61 in FY2024 and #87 in FY2025; up 10 since FY2022.
86	City of Jesup Top agencies DOJ (Department of Justice)	$569,291	0.1%	Rank history: #55 in FY2021, #67 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
87	Danaher Corporation Through Chemtreat, Inc. Top agencies HHS (Department of Health and Human Services)	$548,481	0.1%	Rank history: not on the FY2021 list, #44 in FY2022 and not on the FY2024–FY2025 lists; down 43 since FY2022.
88	Lakehurst Water & Sanitation District Top agencies DOJ (Department of Justice)	$543,556	0.1%	Rank history: #95 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
89	City of Bennettsville Top agencies DOJ (Department of Justice)	$541,093	0.1%	Rank history: #90 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
90	City of Seagoville Top agencies DOJ (Department of Justice)	$540,666	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 30 since FY2022.
91	Lexington-Fayette Urban County Government Top agencies DOJ (Department of Justice)	$493,512	0.1%	Rank history: not on the FY2021 list, #91 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
92	City of Big Spring Top agencies DOJ (Department of Justice)	$480,130	0.1%	Rank history: #92 in FY2021, #98 in FY2022, #74 in FY2024 and not on the FY2025 list; up 6 since FY2022.
93	City of Victorville Top agencies DOJ (Department of Justice)	$450,540	0.1%	Rank history: #39 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 66 since FY2022.
94	Puget Sound Energy Inc. Top agencies DOJ (Department of Justice)	$425,687	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Schwarz Construction LLC Top agencies Army (Department of the Army)	$422,488	0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and #67 in FY2025; up 10 since FY2022.
96	Texas Water Utilities, L.P. Top agencies DOJ (Department of Justice)	$420,459	0.1%	Rank history: #49 in FY2021, #51 in FY2022, not on the FY2024 list and #71 in FY2025; down 45 since FY2022.
97	Dublin San Ramon Services District Top agencies DOJ (Department of Justice)	$408,068	0.1%	Rank history: #45 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; down 40 since FY2022.
98	Gunsan City Hall Climate and Environment Bureau Top agencies USAF (Department of the Air Force)	$394,337	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2024 and #57 in FY2025; up 41 since FY2022.
99	Middlesex Water Company Through Tidewater Utilities Inc. Top agencies USAF (Department of the Air Force)	$392,965	0.1%	Rank history: #76 in FY2021, #90 in FY2022, #75 in FY2024 and not on the FY2025 list; down 9 since FY2022.
100	City of Chicago Top agencies DOJ (Department of Justice) RRB (Railroad Retirement Board)	$379,618	0.1%	Rank history: #98 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 3 since FY2022.

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 $622 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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