Top 100 Contractors in NAICS 5621: Waste Collection, FY2022

Name: Top 100 Contractors in NAICS 5621: Waste Collection, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 33% of FY2022 NAICS 5621 contract dollars

Contract obligations: $425,744,662 Net of deobligations, by contracts coded NAICS 5621 or a code under it
Contractors: 893 Parent companies with an obligation
Largest contractor: Ciri Development Corporation $63.1 million, 14.0% 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	Ciri Development Corporation Through North Wind Site Services, LLC Top agencies Army (Department of the Army)	$63,053,356	14.0%	Rank history: not on the FY2021 list, #50 in FY2023 and not on the FY2024–FY2025 lists; new.
2	Hamilton Alliance Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Army (Department of the Army)	$12,930,765	2.9%	Rank history: #3 in FY2021, #2 in FY2023, #2 in FY2024 and #7 in FY2025; up 1 since FY2021.
3	Yamaki Co., Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$12,559,716	2.8%	Rank history: #4 in FY2021, #4 in FY2023, #6 in FY2024 and #10 in FY2025; up 1 since FY2021.
4	Waste Management, Inc. 102 awardees, including USA Waste of California, Inc., Waste Management of New Jersey, Inc. and Waste Management of Minnesota Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$11,114,758	2.5%	Rank history: #5 in FY2021, #5 in FY2023, #58 in FY2024 and not on the FY2025 list; up 1 since FY2021.
5	Guahan Waste Control, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$9,780,268	2.2%	Rank history: #12 in FY2021, #3 in FY2023, #5 in FY2024 and #14 in FY2025; up 7 since FY2021.
6	Specpro Sustainment and Environmental, LLC Top agencies Army (Department of the Army)	$9,450,268	2.1%	Rank history: #42 in FY2021, #25 in FY2023, #54 in FY2024 and #63 in FY2025; up 36 since FY2021.
7	Perry Management Corp of South Dakota, L.l.c Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$8,638,610	1.9%	Rank history: #6 in FY2021, #7 in FY2023, #4 in FY2024 and #9 in FY2025; down 1 since FY2021.
8	Jfe-K Scrap JV Top agencies Navy (Department of the Navy)	$7,784,976	1.7%	Rank history: #20 in FY2021, #17 in FY2023, #23 in FY2024 and #22 in FY2025; up 12 since FY2021.
9	Zero Waste Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$7,582,680	1.7%	Rank history: #21 in FY2021, #10 in FY2023, #11 in FY2024 and #26 in FY2025; up 12 since FY2021.
10	SNI United LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$7,135,368	1.6%	Rank history: not on the FY2021 list, #9 in FY2023, #16 in FY2024 and #19 in FY2025; new.
11	Neie Medical Waste Services, LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) Army (Department of the Army)	$6,959,971	1.5%	Rank history: #7 in FY2021, #14 in FY2023, #9 in FY2024 and #18 in FY2025; down 4 since FY2021.
12	Dorado Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$6,824,263	1.5%	Rank history: #8 in FY2021, #6 in FY2023, #10 in FY2024 and #16 in FY2025; down 4 since FY2021.
13	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOI (Department of the Interior)	$6,180,225	1.4%	Rank history: #16 in FY2021, #15 in FY2023, #8 in FY2024 and #23 in FY2025; up 3 since FY2021.
14	Ecology Services Inc. Top agencies HHS (Department of Health and Human Services)	$6,049,327	1.3%	Rank history: #10 in FY2021, #11 in FY2023, #14 in FY2024 and #17 in FY2025; down 4 since FY2021.
15	Republic Services Inc. 51 awardees, including Republic Services of Indiana, Limited Partnership, Allied Waste Transportation Inc. and Montana Waste Systems, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) Navy (Department of the Navy)	$5,659,680	1.3%	Rank history: #19 in FY2021, #16 in FY2023, #3 in FY2024 and #8 in FY2025; up 4 since FY2021.
16	Kankyo Solution Co. Ltd. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$5,515,861	1.2%	Rank history: #11 in FY2021, #22 in FY2023, #34 in FY2024 and not on the FY2025 list; down 5 since FY2021.
17	Donato Marangi, Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice)	$5,330,106	1.2%	Rank history: #32 in FY2021, #77 in FY2023, #19 in FY2024 and #57 in FY2025; up 15 since FY2021.
18	Clean Venture Inc. Top agencies HHS (Department of Health and Human Services)	$5,174,284	1.1%	Rank history: not on the FY2021 list, #20 in FY2023 and not on the FY2024–FY2025 lists; new.
19	Mark Dunning Industries Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$5,121,198	1.1%	Rank history: #13 in FY2021, #18 in FY2023, #13 in FY2024 and #25 in FY2025; down 6 since FY2021.
20	Six-Nations Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$4,984,535	1.1%	Rank history: #2 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
21	Kurashiki, Co.,Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$4,505,120	1.0%	Rank history: #26 in FY2021, #24 in FY2023, #17 in FY2024 and #11 in FY2025; up 5 since FY2021.
22	Edco Disposal Corp Top agencies Navy (Department of the Navy)	$4,143,100	0.9%	Rank history: #25 in FY2021, #19 in FY2023, #15 in FY2024 and #15 in FY2025; up 3 since FY2021.
23	VMX International LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$4,109,435	0.9%	Rank history: #9 in FY2021, #46 in FY2023, #76 in FY2024 and not on the FY2025 list; down 14 since FY2021.
24	Veolia Water North America-West LLC 2 awardees, including Veolia Umweltservice Sued GMBH & Co. KG and Veolia Es Technical Solutions LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) Treasury (Department of the Treasury)	$4,098,448	0.9%	Rank history: #39 in FY2021, not on the FY2023 list, #80 in FY2024 and not on the FY2025 list; up 15 since FY2021.
25	Triumvirate Environmental, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$3,971,194	0.9%	Rank history: #17 in FY2021, #13 in FY2023, #7 in FY2024 and #13 in FY2025; down 8 since FY2021.
26	Landscape Management Systems, Inc. Top agencies Navy (Department of the Navy) DECA (Defense Commissary Agency) DLA (Defense Logistics Agency)	$3,902,831	0.9%	Rank history: #14 in FY2021, #27 in FY2023, #22 in FY2024 and #31 in FY2025; down 12 since FY2021.
27	Honolulu Disposal Service, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOI (Department of the Interior)	$3,873,307	0.9%	Rank history: #24 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
28	Flightfab, Inc. Top agencies Navy (Department of the Navy)	$3,747,780	0.8%	Rank history: not on the FY2021 list, #36 in FY2023 and not on the FY2024–FY2025 lists; new.
29	Yongma Service Corporation Top agencies Army (Department of the Army)	$3,665,147	0.8%	Rank history: #43 in FY2021, #23 in FY2023, #37 in FY2024 and #35 in FY2025; up 14 since FY2021.
30	Biffa Waste Services Ltd Top agencies USAF (Department of the Air Force)	$3,628,498	0.8%	Rank history: #37 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
31	Greener Construction Services, Inc. Top agencies GSA (General Services Administration) Commerce (Department of Commerce) Army (Department of the Army)	$3,593,157	0.8%	Rank history: #27 in FY2021, #38 in FY2023, #40 in FY2024 and #42 in FY2025; down 4 since FY2021.
32	DBI Waste Systems Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) Army (Department of the Army)	$3,550,197	0.8%	Rank history: #31 in FY2021, #29 in FY2023, #36 in FY2024 and #27 in FY2025; down 1 since FY2021.
33	Xpert's LLC Top agencies Army (Department of the Army)	$3,442,998	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
34	Professional Waste Management LLC Top agencies USAF (Department of the Air Force)	$3,427,320	0.8%	Rank history: #53 in FY2021, #76 in FY2023, #45 in FY2024 and #60 in FY2025; up 19 since FY2021.
35	Coqui Disposal Services, LLC Top agencies USAF (Department of the Air Force)	$3,392,109	0.8%	Rank history: #22 in FY2021, #39 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
36	Navajo Sanitation, Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$3,242,353	0.7%	Rank history: #28 in FY2021, #26 in FY2023, #29 in FY2024 and #32 in FY2025; down 8 since FY2021.
37	Ueg, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,229,385	0.7%	Rank history: not on the FY2021 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 289 since FY2021.
38	Recology Inc. 7 awardees, including Recology Yuba-Sutter, Sunset Scavenger Co and Golden Gate Disposal & Recycling Co Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$3,167,315	0.7%	Rank history: #30 in FY2021, #58 in FY2023, #41 in FY2024 and #40 in FY2025; down 8 since FY2021.
39	Pacific Commercial Services, Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$3,099,275	0.7%	Rank history: #23 in FY2021, #51 in FY2023, #33 in FY2024 and #82 in FY2025; down 16 since FY2021.
40	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)	$2,960,226	0.7%	Rank history: #29 in FY2021, #45 in FY2023, #31 in FY2024 and #43 in FY2025; down 11 since FY2021.
41	Fincantieri Marine Systems North America Inc. 4 awardees, including Comune DI Vicenza, Comune DI Pisa and Comune DI Longare Top agencies Army (Department of the Army)	$2,926,162	0.7%	Rank history: #34 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
42	GEO International Management, LLC Top agencies Army (Department of the Army)	$2,754,343	0.6%	Rank history: #36 in FY2021, #35 in FY2023, #39 in FY2024 and #34 in FY2025; down 6 since FY2021.
43	Southern Technology Professional Consulting Service LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$2,698,215	0.6%	Rank history: #60 in FY2021, #40 in FY2023, #27 in FY2024 and #53 in FY2025; up 17 since FY2021.
44	Batista-Dorado JV2 Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$2,600,807	0.6%	Rank history: #64 in FY2021, #32 in FY2023, #53 in FY2024 and #62 in FY2025; up 20 since FY2021.
45	RAS Enterprises LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) AFRH (Armed Forces Retirement Home)	$2,474,170	0.5%	Rank history: #44 in FY2021, #59 in FY2023, #75 in FY2024 and #83 in FY2025; down 1 since FY2021.
46	Native Services LLC Top agencies Army (Department of the Army)	$2,228,182	0.5%	Rank history: #41 in FY2021, #42 in FY2023, #32 in FY2024 and #38 in FY2025; down 5 since FY2021.
47	Loop Inc. Top agencies USAF (Department of the Air Force)	$2,069,251	0.5%	Rank history: #48 in FY2021, #53 in FY2023, #56 in FY2024 and #45 in FY2025; up 1 since FY2021.
48	Batista - Dorado JV Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$1,965,202	0.4%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; up 18 since FY2021.
49	Waste Connections US Holdings Inc. 30 awardees, including Waste Connections of Alaska, Inc., Waste Connections of Florida, Inc. and Waste Connections of Arkansas, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOJ (Department of Justice)	$1,949,499	0.4%	Rank history: #47 in FY2021, #48 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
50	Mellor Engineering Inc. Top agencies Army (Department of the Army)	$1,945,756	0.4%	Rank history: #65 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
51	Marco Federal Services LLC 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) GSA (General Services Administration)	$1,918,488	0.4%	Rank history: #56 in FY2021, #34 in FY2023, #18 in FY2024 and #20 in FY2025; up 5 since FY2021.
52	Wastesolutions LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$1,897,813	0.4%	Rank history: #49 in FY2021, not on the FY2023 list, #94 in FY2024 and #80 in FY2025; down 3 since FY2021.
53	Saudi Naval Support Co. Top agencies USAF (Department of the Air Force)	$1,885,297	0.4%	Rank history: not on the FY2021 list, #54 in FY2023, #65 in FY2024 and #87 in FY2025; new.
54	Clean Recycle Company, Ltd Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,803,916	0.4%	Rank history: #35 in FY2021, #66 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2021.
55	Jakob Becker Entsorgungs-GMBH Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,766,404	0.4%	Rank history: #45 in FY2021, #63 in FY2023, #55 in FY2024 and #61 in FY2025; down 10 since FY2021.
56	Syscom, Inc. Top agencies Army (Department of the Army)	$1,757,252	0.4%	Rank history: not on the FY2021 list, #52 in FY2023, #47 in FY2024 and #49 in FY2025; new.
57	J Torres Co Inc. Top agencies USAF (Department of the Air Force)	$1,717,786	0.4%	Rank history: #50 in FY2021, #55 in FY2023, #49 in FY2024 and #56 in FY2025; down 7 since FY2021.
58	Couvillion Group LLC Top agencies DHS (Department of Homeland Security)	$1,562,598	0.3%	Rank history: #1 in FY2021 and not on the FY2023–FY2025 lists; down 57 since FY2021.
59	Onaka-Nisiko JV Top agencies Navy (Department of the Navy) Army (Department of the Army) DODEA (Department of Defense Education Activity)	$1,519,249	0.3%	Rank history: #58 in FY2021, #62 in FY2023, #83 in FY2024 and #54 in FY2025; down 1 since FY2021.
60	Perikin Enterprises LLC Top agencies Army (Department of the Army)	$1,446,239	0.3%	Rank history: not on the FY2021 list, #30 in FY2023, #60 in FY2024 and #39 in FY2025; new.
61	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)	$1,434,435	0.3%	Rank history: #59 in FY2021, #78 in FY2023, #87 in FY2024 and not on the FY2025 list; down 2 since FY2021.
62	Haztrain Inc. Top agencies Navy (Department of the Navy)	$1,408,718	0.3%	Rank history: #57 in FY2021, #67 in FY2023, #64 in FY2024 and #66 in FY2025; down 5 since FY2021.
63	Oneida Nation Through Sustainment & Restoration Services, LLC Top agencies Army (Department of the Army)	$1,377,511	0.3%	Rank history: not on the FY2021 list, #70 in FY2023 and not on the FY2024–FY2025 lists; up 232 since FY2021.
64	Marco-Onopa JV, Llc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,324,882	0.3%	Rank history: #33 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
65	Grundy Government Services, LLC Top agencies Army (Department of the Army)	$1,324,401	0.3%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
66	Robinson Waste Services LLC Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury)	$1,322,540	0.3%	Rank history: #86 in FY2021, not on the FY2023 list, #92 in FY2024 and #85 in FY2025; up 20 since FY2021.
67	Corporate Waste Solutions LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$1,289,676	0.3%	Rank history: #89 in FY2021, #28 in FY2023, #28 in FY2024 and #29 in FY2025; up 22 since FY2021.
68	EWA Direction Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$1,269,026	0.3%	Rank history: not on the FY2021 list, #57 in FY2023, #48 in FY2024 and #52 in FY2025; new.
69	City of Port Hueneme Top agencies Navy (Department of the Navy)	$1,267,677	0.3%	Rank history: #62 in FY2021, #72 in FY2023, #70 in FY2024 and #70 in FY2025; down 7 since FY2021.
70	Mabbett & Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$1,251,874	0.3%	Rank history: #67 in FY2021, #44 in FY2023, #59 in FY2024 and #58 in FY2025; down 3 since FY2021.
71	County of Kitsap Top agencies Navy (Department of the Navy)	$1,227,088	0.3%	Rank history: #70 in FY2021, #83 in FY2023, #67 in FY2024 and #81 in FY2025; down 1 since FY2021.
72	Desert Dump Truck Rental, Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$1,173,906	0.3%	Rank history: #78 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
73	Pyungtaek Environment Co.,Ltd Top agencies USAF (Department of the Air Force)	$1,119,981	0.2%	Rank history: #68 in FY2021, #79 in FY2023, #84 in FY2024 and #75 in FY2025; down 5 since FY2021.
74	Wilburn Hauling Inc. Top agencies DHA (Defense Health Agency) USDA (Department of Agriculture) Army (Department of the Army)	$1,092,655	0.2%	Rank history: not on the FY2021 list, #33 in FY2023, #26 in FY2024 and #36 in FY2025; new.
75	Kanagawa Hoken Jigyousha Co.,Ltd. Top agencies Navy (Department of the Navy)	$1,092,618	0.2%	Rank history: #76 in FY2021, #80 in FY2023, not on the FY2024 list and #95 in FY2025; up 1 since FY2021.
76	Cogetrina Logistics SA Top agencies Army (Department of the Army)	$1,066,205	0.2%	Rank history: not on the FY2021 list, #93 in FY2023 and not on the FY2024–FY2025 lists; up 57 since FY2021.
77	Jerome L Taylor Trucking Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$1,025,965	0.2%	Rank history: #77 in FY2021, #96 in FY2023, #74 in FY2024 and not on the FY2025 list; unchanged since FY2021.
78	Birdon America Inc. Top agencies Navy (Department of the Navy)	$943,981	0.2%	Rank history: #73 in FY2021, #61 in FY2023, #62 in FY2024 and #67 in FY2025; down 5 since FY2021.
79	City of Monterey 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$931,816	0.2%	Rank history: #72 in FY2021, #91 in FY2023, #78 in FY2024 and not on the FY2025 list; down 7 since FY2021.
80	Set the Standard, LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$882,274	0.2%	Rank history: #95 in FY2021, #95 in FY2023, not on the FY2024 list and #100 in FY2025; up 15 since FY2021.
81	US Ecology, Inc. 5 awardees, including US Ecology Washington Inc. and NRC Environmental Services Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USDA (Department of Agriculture)	$875,172	0.2%	Rank history: #46 in FY2021, #92 in FY2023 and not on the FY2024–FY2025 lists; down 35 since FY2021.
82	Lane Services LLC Top agencies USAF (Department of the Air Force)	$870,423	0.2%	Rank history: #63 in FY2021, #86 in FY2023, #96 in FY2024 and #94 in FY2025; down 19 since FY2021.
83	Livingstone Trading & Contracting Top agencies USAF (Department of the Air Force)	$835,028	0.2%	Rank history: #51 in FY2021, #64 in FY2023, #69 in FY2024 and not on the FY2025 list; down 32 since FY2021.
84	Vision Construction International, LLC Top agencies Army (Department of the Army)	$833,937	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 407 since FY2021.
85	Columbia Navigation, Inc. Top agencies DOI (Department of the Interior)	$832,309	0.2%	Rank history: #83 in FY2021, not on the FY2023–FY2024 lists and #74 in FY2025; down 2 since FY2021.
86	C & M Industries, Inc. Top agencies Navy (Department of the Navy)	$823,590	0.2%	Rank history: #75 in FY2021, not on the FY2023 list, #72 in FY2024 and not on the FY2025 list; down 11 since FY2021.
87	Environmental Management Services Inc. Top agencies VA (Department of Veterans Affairs)	$816,858	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 157 since FY2021.
88	Adastra Ecological Services, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$802,370	0.2%	Rank history: not on the FY2021 list, #71 in FY2023, #57 in FY2024 and #51 in FY2025; up 99 since FY2021.
89	Liberty Disposal Inc. Top agencies Army (Department of the Army)	$801,791	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #93 in FY2025; new.
90	Repaintex Company Top agencies Army (Department of the Army)	$800,000	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 14 since FY2021.
91	Hosan Environment Co., Ltd. Top agencies Army (Department of the Army)	$755,680	0.2%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
92	DAE IL Sanitary Public Corporation Top agencies Army (Department of the Army)	$753,826	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
93	Enviroworks LLC Top agencies USAF (Department of the Air Force)	$750,067	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	Tri-County Recycling Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$745,419	0.2%	Rank history: #99 in FY2021, #60 in FY2023, #66 in FY2024 and #65 in FY2025; up 5 since FY2021.
95	Active Recycling Co., Inc. Top agencies VA (Department of Veterans Affairs)	$743,418	0.2%	Rank history: #91 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
96	Itm4G LLC Top agencies VA (Department of Veterans Affairs)	$729,389	0.2%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
97	Rethmann AG & Co. KG 2 awardees, including Remondis Industrie Service Gmbh. and Refood GMBH & Co. KG Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$702,769	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 9 since FY2021.
98	Stericycle Inc. 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$696,442	0.2%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 43 since FY2021.
99	Jaedong Environment Top agencies Army (Department of the Army)	$695,516	0.2%	Rank history: #93 in FY2021, #94 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
100	Seres Engineering & Services LLC Top agencies EPA (Environmental Protection Agency) Navy (Department of the Navy) CSOSA (Court Services and Offender Supervision Agency)	$681,621	0.2%	Rank history: #74 in FY2021, #56 in FY2023, #51 in FY2024 and #71 in FY2025; down 26 since FY2021.

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100 of 893 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 5621

Code	Net obligations	Largest contractor
56211 Waste Collection	$425,744,662	Ciri Development Corporation

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 $450 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 5621 contractors in FY2022?

1. Ciri Development Corporation ($63.1M), 2. Hamilton Alliance Inc. ($12.9M), 3. Yamaki Co., Ltd. ($12.6M), 4. Waste Management, Inc. ($11.1M), 5. Guahan Waste Control, Inc. ($9.78M), 6. Specpro Sustainment and Environmental, LLC ($9.45M), 7. Perry Management Corp of South Dakota, L.l.c ($8.64M), 8. Jfe-K Scrap JV ($7.78M), 9. Zero Waste Solutions, Inc. ($7.58M), 10. SNI United LLC ($7.14M).

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