Top 100 Contractors in PSC S205: Trash/Garbage Collection Services – Including Portable Sanitation Services, FY2023

Name: Top 100 Contractors in PSC S205: Trash/Garbage Collection Services – Including Portable Sanitation Services, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 27% of FY2023 PSC S205 contract dollars

Contract obligations: $310,190,890 Net of deobligations, by contracts coded PSC S205
Contractors: 777 Parent companies with an obligation
Largest contractor: Guahan Waste Control, Inc. $13.4 million, 4.0% 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	Guahan Waste Control, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DECA (Defense Commissary Agency)	$13,436,982	4.0%	Rank history: #11 in FY2021, #3 in FY2022, #3 in FY2024 and #5 in FY2025; up 2 since FY2022.
2	Hamilton Alliance Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Army (Department of the Army)	$12,761,866	3.8%	Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; down 1 since FY2022.
3	Dorado Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$9,673,041	2.9%	Rank history: #7 in FY2021, #8 in FY2022, #5 in FY2024 and #6 in FY2025; up 5 since FY2022.
4	Perry Management Corp of South Dakota, L.l.c Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$9,261,018	2.7%	Rank history: #5 in FY2021, #5 in FY2022, #2 in FY2024 and #2 in FY2025; up 1 since FY2022.
5	Zero Waste Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$9,022,756	2.7%	Rank history: #9 in FY2021, #4 in FY2022, #4 in FY2024 and #7 in FY2025; down 1 since FY2022.
6	Waste Management, Inc. 89 awardees, including USA Waste of California, Inc., Advanced Disposal Services Solid Waste Southeast Inc. and Waste Management of Colorado Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) VA (Department of Veterans Affairs)	$8,622,182	2.5%	Rank history: #4 in FY2021, #2 in FY2022, #89 in FY2024 and not on the FY2025 list; down 4 since FY2022.
7	Pacific Federal Management Inc Top agencies Army (Department of the Army)	$7,500,000	2.2%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2024 and not on the FY2025 list; new.
8	Yamaki Co., Ltd. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$7,345,423	2.2%	Rank history: #6 in FY2021, #7 in FY2022, #14 in FY2024 and #16 in FY2025; down 1 since FY2022.
9	Ecology Services Inc. Top agencies HHS (Department of Health and Human Services)	$7,008,071	2.1%	Rank history: #10 in FY2021, #10 in FY2022, #9 in FY2024 and #8 in FY2025; up 1 since FY2022.
10	Curry Transfer & Recycling Inc 20 awardees, including Harold Lemay Enterprises, Incorporated, Waste Connections of Alaska, Inc. and Evergreen Disposal, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$6,738,215	2.0%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and not on the FY2025 list; new.
11	SNI United LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$6,214,750	1.8%	Rank history: not on the FY2021 list, #9 in FY2022, #8 in FY2024 and #9 in FY2025; down 2 since FY2022.
12	Republic Services Inc. 50 awardees, including Republic Services of Indiana, Limited Partnership, Allied Waste Transportation Inc. and Montana Waste Systems, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$6,085,757	1.8%	Rank history: #12 in FY2021, #11 in FY2022, #11 in FY2024 and #13 in FY2025; down 1 since FY2022.
13	Jfe-K Scrap JV Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DODEA (Department of Defense Education Activity)	$5,845,231	1.7%	Rank history: #15 in FY2021, #6 in FY2022, #17 in FY2024 and #12 in FY2025; down 7 since FY2022.
14	Edco Disposal Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,467,925	1.6%	Rank history: #20 in FY2021, #19 in FY2022, #10 in FY2024 and #11 in FY2025; up 5 since FY2022.
15	Mark Dunning Industries Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$5,061,932	1.5%	Rank history: #14 in FY2021, #16 in FY2022, #7 in FY2024 and #15 in FY2025; up 1 since FY2022.
16	Six-Nations Inc Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$4,854,068	1.4%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and #33 in FY2025; up 244 since FY2022.
17	O'brien Business Systems, Inc. Top agencies National Gallery of Art	$4,535,413	1.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
18	Kankyo Solution Co. Ltd. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$4,257,382	1.3%	Rank history: #8 in FY2021, #12 in FY2022, #26 in FY2024 and not on the FY2025 list; down 6 since FY2022.
19	Yongma Service Corporation Top agencies Army (Department of the Army)	$4,189,979	1.2%	Rank history: #22 in FY2021, #17 in FY2022, #28 in FY2024 and #29 in FY2025; down 2 since FY2022.
20	Kurashiki, Co.,Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$4,041,115	1.2%	Rank history: #21 in FY2021, #15 in FY2022, #13 in FY2024 and #4 in FY2025; down 5 since FY2022.
21	Navajo Sanitation, Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$3,580,853	1.1%	Rank history: #24 in FY2021, #28 in FY2022, #22 in FY2024 and #22 in FY2025; up 7 since FY2022.
22	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs)	$3,438,484	1.0%	Rank history: #16 in FY2021, #18 in FY2022, #12 in FY2024 and #27 in FY2025; down 4 since FY2022.
23	Wasteholdco 1 Limited Through Biffa Waste Services Limited Top agencies USAF (Department of the Air Force)	$3,217,153	1.0%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and #21 in FY2025; new.
24	Professional Contract Services, Inc. Top agencies DHS (Department of Homeland Security)	$3,168,773	0.9%	Rank history: not on the FY2021 list, #31 in FY2022, #25 in FY2024 and #24 in FY2025; up 7 since FY2022.
25	Neie Medical Waste Services, LLC Top agencies VA (Department of Veterans Affairs)	$3,098,524	0.9%	Rank history: #27 in FY2021, #26 in FY2022, #18 in FY2024 and #19 in FY2025; up 1 since FY2022.
26	Batista-Dorado JV2 Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,052,185	0.9%	Rank history: not on the FY2021 list, #52 in FY2022, #38 in FY2024 and #47 in FY2025; up 26 since FY2022.
27	Coho Construction Management LLC Top agencies Army (Department of the Army)	$3,021,258	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Marco Federal Services LLC 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$3,007,474	0.9%	Rank history: #43 in FY2021, #45 in FY2022, #16 in FY2024 and #10 in FY2025; up 17 since FY2022.
29	GEO International Management, LLC Top agencies Army (Department of the Army)	$2,986,154	0.9%	Rank history: #28 in FY2021, #29 in FY2022, #31 in FY2024 and #26 in FY2025; unchanged since FY2022.
30	ECO Environment Co., Ltd. Top agencies Army (Department of the Army)	$2,966,230	0.9%	Rank history: #53 in FY2021, #56 in FY2022, #43 in FY2024 and #55 in FY2025; up 26 since FY2022.
31	Coqui Disposal Services, LLC Top agencies USAF (Department of the Air Force)	$2,792,920	0.8%	Rank history: #17 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
32	Southern Technology Professional Consulting Service LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$2,772,551	0.8%	Rank history: #49 in FY2021, #30 in FY2022, #20 in FY2024 and #37 in FY2025; down 2 since FY2022.
33	Corporate Waste Solutions LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$2,654,136	0.8%	Rank history: not on the FY2021 list, #74 in FY2022, #23 in FY2024 and #17 in FY2025; up 41 since FY2022.
34	Wilburn Hauling Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$2,354,825	0.7%	Rank history: not on the FY2021 list, #95 in FY2022, #27 in FY2024 and #34 in FY2025; up 61 since FY2022.
35	VMX International LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$2,262,636	0.7%	Rank history: #13 in FY2021, #23 in FY2022, #56 in FY2024 and #88 in FY2025; down 12 since FY2022.
36	G4S Holding One Inc. Through G4S Secure Integration LLC Top agencies DOS (Department of State)	$2,215,639	0.7%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and not on the FY2025 list; new.
37	Waste Connections US Holdings Inc. 18 awardees, including Harold Lemay Enterprises, Incorporated, Waste Connections of Florida, Inc. and Waste Connections of Arkansas, Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice) DOI (Department of the Interior)	$2,153,107	0.6%	Rank history: #33 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
38	Syscom, Inc. Top agencies Army (Department of the Army)	$2,114,663	0.6%	Rank history: not on the FY2021 list, #44 in FY2022, #37 in FY2024 and #35 in FY2025; up 6 since FY2022.
39	Loop Inc. Top agencies USAF (Department of the Air Force)	$2,055,408	0.6%	Rank history: #34 in FY2021, #35 in FY2022, #41 in FY2024 and #32 in FY2025; down 4 since FY2022.
40	Recology Inc. 7 awardees, including Sunset Scavenger Co, Golden Gate Disposal & Recycling Co and Recology Sonoma Marin Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) Treasury (Department of the Treasury)	$2,026,877	0.6%	Rank history: #23 in FY2021, #27 in FY2022, #29 in FY2024 and #28 in FY2025; down 13 since FY2022.
41	Krätz GMBH Top agencies Army (Department of the Army)	$1,980,624	0.6%	Rank history: #35 in FY2021, #34 in FY2022, not on the FY2024 list and #62 in FY2025; down 7 since FY2022.
42	Areaka Trading & Logistics Company Top agencies USAF (Department of the Air Force)	$1,950,494	0.6%	Rank history: #68 in FY2021, #32 in FY2022, #42 in FY2024 and #46 in FY2025; down 10 since FY2022.
43	Saudi Naval Support Co. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,928,412	0.6%	Rank history: not on the FY2021 list, #39 in FY2022, #49 in FY2024 and #67 in FY2025; down 4 since FY2022.
44	Advant-Edge Solutions of Middle Atlantic Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$1,653,694	0.5%	Rank history: #75 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; up 40 since FY2022.
45	Specpro Sustainment and Environmental, LLC Top agencies Army (Department of the Army)	$1,631,922	0.5%	Rank history: not on the FY2021 list, #48 in FY2022, #39 in FY2024 and #48 in FY2025; up 3 since FY2022.
46	Southeastern Public Service Authority of Virginia Top agencies Navy (Department of the Navy)	$1,603,643	0.5%	Rank history: #65 in FY2021, #73 in FY2022, #67 in FY2024 and #68 in FY2025; up 27 since FY2022.
47	Birdon America Inc. Top agencies Navy (Department of the Navy)	$1,601,467	0.5%	Rank history: #61 in FY2021, #68 in FY2022, #46 in FY2024 and #50 in FY2025; up 21 since FY2022.
48	Tri-County Recycling Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHS (Department of Homeland Security)	$1,599,066	0.5%	Rank history: #78 in FY2021, #78 in FY2022, #63 in FY2024 and #56 in FY2025; up 30 since FY2022.
49	Onaka-Nisiko JV Top agencies Navy (Department of the Navy)	$1,582,382	0.5%	Rank history: #44 in FY2021, #49 in FY2022, #60 in FY2024 and #39 in FY2025; unchanged since FY2022.
50	Terasense Inc. Top agencies Army (Department of the Army)	$1,554,795	0.5%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2024 and not on the FY2025 list; new.
51	Jakob Becker Entsorgungs-GMBH Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,546,801	0.5%	Rank history: #32 in FY2021, #43 in FY2022, #40 in FY2024 and #44 in FY2025; down 8 since FY2022.
52	Livingstone Trading & Contracting Top agencies USAF (Department of the Air Force)	$1,530,450	0.5%	Rank history: #38 in FY2021, #75 in FY2022, #51 in FY2024 and #83 in FY2025; up 23 since FY2022.
53	Landscape Management Systems, Inc. Top agencies Navy (Department of the Navy) DECA (Defense Commissary Agency) DLA (Defense Logistics Agency)	$1,475,181	0.4%	Rank history: #54 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
54	Clean Recycle Company, Ltd Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,443,563	0.4%	Rank history: #26 in FY2021, #41 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
55	Brown Point Facility Management Solutions, LLC Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$1,382,239	0.4%	Rank history: not on the FY2021 list, #85 in FY2022, #94 in FY2024 and not on the FY2025 list; up 30 since FY2022.
56	Honolulu Disposal Service, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOI (Department of the Interior)	$1,345,043	0.4%	Rank history: #19 in FY2021, #21 in FY2022, #90 in FY2024 and not on the FY2025 list; down 35 since FY2022.
57	City of Port Hueneme Top agencies Navy (Department of the Navy)	$1,270,337	0.4%	Rank history: #50 in FY2021, #57 in FY2022, #53 in FY2024 and #54 in FY2025; unchanged since FY2022.
58	RAS Enterprises LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) AFRH (Armed Forces Retirement Home)	$1,158,161	0.3%	Rank history: #42 in FY2021, #37 in FY2022, #80 in FY2024 and #57 in FY2025; down 21 since FY2022.
59	Bates Trucking Company Incorporated Top agencies Army (Department of the Army)	$1,135,972	0.3%	Rank history: #52 in FY2021, #82 in FY2022, #62 in FY2024 and #99 in FY2025; up 23 since FY2022.
60	Fincantieri Marine Systems North America Inc. 3 awardees, including Comune DI Pisa, Comune DI Longare and Comune DI Torri DI Quartesolo Top agencies Army (Department of the Army)	$1,109,609	0.3%	Rank history: #71 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
61	Professional Waste Management LLC Top agencies USAF (Department of the Air Force)	$1,091,152	0.3%	Rank history: #41 in FY2021, #24 in FY2022, #35 in FY2024 and #45 in FY2025; down 37 since FY2022.
62	DBI Waste Systems Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) GSA (General Services Administration)	$1,084,538	0.3%	Rank history: #59 in FY2021, #65 in FY2022, #66 in FY2024 and #18 in FY2025; up 3 since FY2022.
63	Adastra Ecological Services, Inc. Top agencies Army (Department of the Army)	$1,081,887	0.3%	Rank history: not on the FY2021 list, #88 in FY2022, #47 in FY2024 and #43 in FY2025; up 25 since FY2022.
64	Donato Marangi, Inc. Top agencies Army (Department of the Army)	$1,081,574	0.3%	Rank history: #18 in FY2021, #13 in FY2022, #15 in FY2024 and #41 in FY2025; down 51 since FY2022.
65	G4S Secure Integration LLC Top agencies DOS (Department of State)	$1,062,197	0.3%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and #42 in FY2025; new.
66	The Chenega Corporation 2 awardees, including Chenega Integrated Security Solutions, LLC and Chenega Healthcare Services LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,057,588	0.3%	Rank history: #45 in FY2021, #53 in FY2022, #65 in FY2024 and not on the FY2025 list; down 13 since FY2022.
67	Lane Services LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$961,672	0.3%	Rank history: #48 in FY2021, #67 in FY2022, #77 in FY2024 and #70 in FY2025; unchanged since FY2022.
68	Apex Waste Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$961,320	0.3%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and #71 in FY2025; new.
69	WB Waste Solutions, LLC Top agencies Smithsonian (Smithsonian Institution) DLA (Defense Logistics Agency) DOI (Department of the Interior)	$948,538	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #69 in FY2025; new.
70	County of Kitsap Top agencies Navy (Department of the Navy)	$948,001	0.3%	Rank history: #56 in FY2021, #58 in FY2022, #50 in FY2024 and #63 in FY2025; down 12 since FY2022.
71	EWA Direction Inc. Top agencies VA (Department of Veterans Affairs)	$938,598	0.3%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2024 and #64 in FY2025; up 88 since FY2022.
72	Städtereinigung Rudolf Ernst GMBH & Co. KG Top agencies Army (Department of the Army)	$921,910	0.3%	Rank history: #91 in FY2021, #89 in FY2022, not on the FY2024 list and #93 in FY2025; up 17 since FY2022.
73	VIP Sanitation Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$914,394	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 127 since FY2022.
74	Bridges BTC Inc. Top agencies USAF (Department of the Air Force)	$893,704	0.3%	Rank history: #64 in FY2021, #71 in FY2022, #76 in FY2024 and not on the FY2025 list; down 3 since FY2022.
75	Boulder Disposal Inc. Top agencies DOI (Department of the Interior)	$853,416	0.3%	Rank history: #74 in FY2021, #81 in FY2022, #83 in FY2024 and #86 in FY2025; up 6 since FY2022.
76	The Severson Group LLC Top agencies Army (Department of the Army)	$846,498	0.3%	Rank history: #69 in FY2021, #80 in FY2022, #81 in FY2024 and not on the FY2025 list; up 4 since FY2022.
77	Street Legal Industries LLC Top agencies DOI (Department of the Interior) DOE (Department of Energy)	$823,975	0.2%	Rank history: #62 in FY2021, #70 in FY2022, #19 in FY2024 and #25 in FY2025; down 7 since FY2022.
78	City of Monterey 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$815,173	0.2%	Rank history: #57 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
79	Greener Construction Services, Inc. Top agencies Commerce (Department of Commerce) GSA (General Services Administration)	$803,528	0.2%	Rank history: #40 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; down 32 since FY2022.
80	Cogetrina Logistics SA Top agencies Army (Department of the Army)	$802,436	0.2%	Rank history: not on the FY2021 list, #61 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
81	Hosan Environment Co., Ltd. Top agencies Army (Department of the Army)	$799,046	0.2%	Rank history: #55 in FY2021, #63 in FY2022, #78 in FY2024 and #82 in FY2025; down 18 since FY2022.
82	Jerome L Taylor Trucking Inc. Top agencies Army (Department of the Army)	$783,266	0.2%	Rank history: #60 in FY2021, #64 in FY2022, #54 in FY2024 and not on the FY2025 list; down 18 since FY2022.
83	Brooks Environmental Solutions LLC Top agencies USAF (Department of the Air Force)	$779,309	0.2%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and #85 in FY2025; new.
84	Architectural House Est. for Contracting Top agencies USAF (Department of the Air Force)	$778,775	0.2%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2024 and #75 in FY2025; new.
85	Nambu Service Co., Ltd. Top agencies Army (Department of the Army)	$775,099	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #97 in FY2025; up 28 since FY2022.
86	Marco-Onopa JV LLC. Top agencies Army (Department of the Army)	$774,358	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Boyd Co. LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DOI (Department of the Interior)	$744,327	0.2%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2024 and #58 in FY2025; up 49 since FY2022.
88	Jaedong Environment Top agencies Army (Department of the Army)	$720,745	0.2%	Rank history: #72 in FY2021, #72 in FY2022, not on the FY2024 list and #89 in FY2025; down 16 since FY2022.
89	Coastal Enterprises of Jacksonville Inc. Top agencies Navy (Department of the Navy)	$699,862	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Kankyo Seibi Co.,Ltd. Top agencies USAF (Department of the Air Force)	$680,973	0.2%	Rank history: #63 in FY2021, #86 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
91	Pureservice Corp Top agencies Army (Department of the Army)	$671,179	0.2%	Rank history: #93 in FY2021, #97 in FY2022, #68 in FY2024 and #78 in FY2025; up 6 since FY2022.
92	Mariposa Portable Santitation LLC Top agencies DOI (Department of the Interior)	$666,033	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 9 since FY2022.
93	RJS Disposal Service Inc. Top agencies DOS (Department of State) DOL (Department of Labor) DOE (Department of Energy)	$659,610	0.2%	Rank history: #37 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 10 since FY2022.
94	Star Capital Defense Contracting and General Maintenance LLC Top agencies USAF (Department of the Air Force)	$616,039	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #99 in FY2024 and not on the FY2025 list; down 7 since FY2022.
95	Razor Consulting Solutions, Inc. Top agencies USAF (Department of the Air Force)	$614,380	0.2%	Rank history: #82 in FY2021, #98 in FY2022, #100 in FY2024 and not on the FY2025 list; up 3 since FY2022.
96	BPM Services Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) VA (Department of Veterans Affairs)	$609,600	0.2%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2024 and #84 in FY2025; up 43 since FY2022.
97	Century Waste Services LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) Army (Department of the Army)	$603,804	0.2%	Rank history: #86 in FY2021, #94 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
98	Strategic Support Corporation, Inc. Top agencies USAF (Department of the Air Force)	$585,193	0.2%	Rank history: #85 in FY2021, #96 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
99	Fora Pathways, Inc. Top agencies DHS (Department of Homeland Security)	$581,885	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 5 since FY2022.
100	Mid-East Services Inc. Top agencies USAF (Department of the Air Force)	$574,353	0.2%	Rank history: #87 in FY2021, #99 in FY2022, not on the FY2024 list and #98 in FY2025; down 1 since FY2022.

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100 of 777 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 $338 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

Who were the top 10 PSC S205 contractors in FY2023?

1. Guahan Waste Control, Inc. ($13.4M), 2. Hamilton Alliance Inc. ($12.8M), 3. Dorado Services, Inc. ($9.67M), 4. Perry Management Corp of South Dakota, L.l.c ($9.26M), 5. Zero Waste Solutions, Inc. ($9.02M), 6. Waste Management, Inc. ($8.62M), 7. Pacific Federal Management Inc ($7.5M), 8. Yamaki Co., Ltd. ($7.35M), 9. Ecology Services Inc. ($7.01M), 10. Curry Transfer & Recycling Inc ($6.74M).

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