Top 100 Contractors in NAICS 562211: Hazardous Waste Treatment and Disposal, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Amentum Services, Inc. 2 awardees, including Washington River Protection Solutions LLC and Savannah River Remediation LLC Top agencies DOE (Department of Energy)	$917,971,763	44.9%	Rank history: #1 in FY2021, #2 in FY2023, #1 in FY2024 and not on the FY2025 list; unchanged since FY2021.
2	Bechtel Corp 2 awardees, including Bechtel National, Inc. and Bechtel Parsons Blue Grass, A Joint Venture Top agencies Army (Department of the Army)	$785,708,753	38.4%	Rank history: #2 in FY2021, #1 in FY2023, #2 in FY2024 and #3 in FY2025; unchanged since FY2021.
3	Inmar Clearing Inc. Through Inmar RX Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$18,024,300	0.9%	Rank history: #21 in FY2021, #3 in FY2023, #6 in FY2024 and not on the FY2025 list; up 18 since FY2021.
4	US Ecology, Inc. 5 awardees, including US Ecology Holdings, Inc., NRC Environmental Services Inc. and US Ecology Washington Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) DOE (Department of Energy)	$17,977,566	0.9%	Rank history: #7 in FY2021, #7 in FY2023, #12 in FY2024 and not on the FY2025 list; up 3 since FY2021.
5	Environmental Rail Solutions Inc. Top agencies Army (Department of the Army)	$14,861,756	0.7%	Rank history: #50 in FY2021, #4 in FY2023, #7 in FY2024 and #13 in FY2025; up 45 since FY2021.
6	Energysolutions LLC 2 awardees, including Energysolutions Services, Inc. Top agencies Navy (Department of the Navy) DOE (Department of Energy)	$13,182,566	0.6%	Rank history: #9 in FY2021, #8 in FY2023, #32 in FY2024 and not on the FY2025 list; up 3 since FY2021.
7	Aptim Federal Services LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$10,438,132	0.5%	Rank history: #33 in FY2021, #5 in FY2023, #76 in FY2024 and not on the FY2025 list; up 26 since FY2021.
8	Waste Control Specialists LLC Top agencies DOE (Department of Energy) EPA (Environmental Protection Agency)	$9,829,407	0.5%	Rank history: #8 in FY2021, #11 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
9	Seaon Environmental LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,472,673	0.4%	Rank history: #16 in FY2021, #10 in FY2023, #14 in FY2024 and #10 in FY2025; up 7 since FY2021.
10	C & C Environmental Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOI (Department of the Interior)	$7,278,031	0.4%	Rank history: #15 in FY2021, #12 in FY2023, #16 in FY2024 and #12 in FY2025; up 5 since FY2021.
11	Clean Harbors Inc 4 awardees, including Clean Harbors Environmental Services Inc., Safety-Kleen Systems, Inc. and Clean Harbors Caribe, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$7,277,231	0.4%	Rank history: #20 in FY2021, #6 in FY2023, #8 in FY2024 and #9 in FY2025; up 9 since FY2021.
12	Pika International, Inc. Top agencies Army (Department of the Army)	$6,994,845	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 200 since FY2021.
13	Industrial Waste Utilization, LLC Top agencies DLA (Defense Logistics Agency)	$6,843,374	0.3%	Rank history: #12 in FY2021, #16 in FY2023, #18 in FY2024 and #20 in FY2025; down 1 since FY2021.
14	Black Gold Industries Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$6,815,183	0.3%	Rank history: #11 in FY2021, #17 in FY2023, #20 in FY2024 and #22 in FY2025; down 3 since FY2021.
15	Lewis Environmental LLC Top agencies USDA (Department of Agriculture)	$6,712,105	0.3%	Rank history: not on the FY2021 list, not on the FY2023 list, #55 in FY2024 and not on the FY2025 list; new.
16	Tradebe Treatment and Recycling LLC 3 awardees, including Tradebe Environmental Services, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$6,475,053	0.3%	Rank history: #14 in FY2021, #9 in FY2023, #22 in FY2024 and #30 in FY2025; down 2 since FY2021.
17	Heritage Environmental Services Inc. Through Arcwood Environmental, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$6,125,069	0.3%	Rank history: #25 in FY2021, #29 in FY2023, #34 in FY2024 and not on the FY2025 list; up 8 since FY2021.
18	San-I-Pak Pacific, Inc. Top agencies VA (Department of Veterans Affairs)	$6,089,871	0.3%	Rank history: #28 in FY2021, #22 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
19	Tri-State Government Services Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$5,483,136	0.3%	Rank history: #13 in FY2021, #13 in FY2023, #15 in FY2024 and #17 in FY2025; down 6 since FY2021.
20	Advant-Edge Solutions of Middle Atlantic Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$4,872,323	0.2%	Rank history: #56 in FY2021, #21 in FY2023, #23 in FY2024 and #24 in FY2025; up 36 since FY2021.
21	OSC Technical Solutions, LLC Top agencies DOE (Department of Energy)	$4,655,121	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
22	Sued-Muell GMBH & Co. KG Fuer Abfalltransporte UND Sonderabfallbeseitigung Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$4,480,638	0.2%	Rank history: #19 in FY2021, #20 in FY2023, #13 in FY2024 and #18 in FY2025; down 3 since FY2021.
23	Willow Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$4,112,823	0.2%	Rank history: #17 in FY2021, #18 in FY2023, #21 in FY2024 and #14 in FY2025; down 6 since FY2021.
24	Southwest Research Institute Top agencies NRC (Nuclear Regulatory Commission)	$3,776,642	0.2%	Rank history: #23 in FY2021, #39 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
25	Ecosystech JV LLC Top agencies DLA (Defense Logistics Agency)	$3,169,510	0.2%	Rank history: #18 in FY2021, #38 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
26	J&T Recycling Corporation Top agencies DLA (Defense Logistics Agency)	$3,065,873	0.1%	Rank history: #24 in FY2021, #28 in FY2023, #29 in FY2024 and #31 in FY2025; down 2 since FY2021.
27	Neie Medical Waste Services, LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) USAF (Department of the Air Force)	$2,865,628	0.1%	Rank history: #34 in FY2021, #26 in FY2023, #39 in FY2024 and #28 in FY2025; up 7 since FY2021.
28	K.i. Kogyo Ltd. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,670,310	0.1%	Rank history: #41 in FY2021, #67 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2021.
29	Noreas Environmental Services LLC Top agencies Navy (Department of the Navy)	$2,428,766	0.1%	Rank history: #10 in FY2021 and not on the FY2023–FY2025 lists; down 19 since FY2021.
30	AES Asset Acquisition Corporation Top agencies DLA (Defense Logistics Agency)	$2,212,480	0.1%	Rank history: #32 in FY2021, #30 in FY2023, #38 in FY2024 and not on the FY2025 list; up 2 since FY2021.
31	Horizon Environmental Services, Inc. Top agencies DLA (Defense Logistics Agency)	$2,211,498	0.1%	Rank history: #31 in FY2021, #19 in FY2023, #11 in FY2024 and #16 in FY2025; unchanged since FY2021.
32	Veolia Water North America-West LLC 3 awardees, including Veolia Es Technical Solutions LLC and Veolia Es (Uk) Limited Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) EPA (Environmental Protection Agency)	$2,200,064	0.1%	Rank history: #27 in FY2021, #27 in FY2023, #56 in FY2024 and not on the FY2025 list; down 5 since FY2021.
33	GS Environmental, Inc. Top agencies DLA (Defense Logistics Agency)	$2,103,430	0.1%	Rank history: #29 in FY2021, #54 in FY2023, #43 in FY2024 and #35 in FY2025; down 4 since FY2021.
34	EDM Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$1,800,311	0.1%	Rank history: #35 in FY2021, #41 in FY2023, #36 in FY2024 and #44 in FY2025; up 1 since FY2021.
35	Johnsondanforth, Inc. Top agencies VA (Department of Veterans Affairs)	$1,708,846	0.1%	Rank history: #51 in FY2021, #44 in FY2023, #48 in FY2024 and #83 in FY2025; up 16 since FY2021.
36	Perma-Fix Environmental Services, Inc. Top agencies Navy (Department of the Navy) DOE (Department of Energy)	$1,702,495	0.1%	Rank history: #39 in FY2021, #32 in FY2023, #37 in FY2024 and #43 in FY2025; up 3 since FY2021.
37	Entsorgungsbetrieb Luzia Francois GMBH Top agencies USAF (Department of the Air Force)	$1,647,299	0.1%	Rank history: #38 in FY2021, #33 in FY2023, #45 in FY2024 and #58 in FY2025; up 1 since FY2021.
38	Clean Earth Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$1,646,475	0.1%	Rank history: #45 in FY2021, #34 in FY2023, #33 in FY2024 and #40 in FY2025; up 7 since FY2021.
39	Pacific Commercial Services, Inc. Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior)	$1,642,190	0.1%	Rank history: #36 in FY2021, #37 in FY2023, #24 in FY2024 and #25 in FY2025; down 3 since FY2021.
40	Ecolfer SRL 2 awardees, including Relife Recycling S.R.L. Top agencies DLA (Defense Logistics Agency)	$1,599,545	0.1%	Rank history: #47 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
41	Tet Consulting & Business Management Services, LLC Top agencies DHS (Department of Homeland Security)	$1,596,393	0.1%	Rank history: #46 in FY2021, #40 in FY2023, #40 in FY2024 and not on the FY2025 list; up 5 since FY2021.
42	Veteran Equipment Sales LLC Top agencies Army (Department of the Army)	$1,595,562	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
43	Okinawaken Sangyo Haikibutsushori Cooperative Association Top agencies Navy (Department of the Navy)	$1,513,175	0.1%	Rank history: #42 in FY2021, #45 in FY2023, #44 in FY2024 and #42 in FY2025; down 1 since FY2021.
44	Patriot Environmental Services, Inc. Top agencies USDA (Department of Agriculture)	$1,488,541	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
45	Graham & Associates Inc. Top agencies USAF (Department of the Air Force)	$1,441,284	0.1%	Rank history: #37 in FY2021, #46 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
46	Jfe-K Ryukyu Logistic JV Top agencies DLA (Defense Logistics Agency)	$1,337,464	0.1%	Rank history: #40 in FY2021, #15 in FY2023, #52 in FY2024 and #39 in FY2025; down 6 since FY2021.
47	Tad Environment Top agencies DLA (Defense Logistics Agency)	$1,138,803	0.1%	Rank history: #52 in FY2021, #48 in FY2023, #49 in FY2024 and #67 in FY2025; up 5 since FY2021.
48	West Central Environmental Corp. Top agencies DLA (Defense Logistics Agency)	$1,121,060	0.1%	Rank history: #53 in FY2021, #49 in FY2023, #41 in FY2024 and #46 in FY2025; up 5 since FY2021.
49	Hidden Water Inc. Top agencies DLA (Defense Logistics Agency)	$1,098,340	0.1%	Rank history: #66 in FY2021, #100 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2021.
50	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,071,340	0.1%	Rank history: #54 in FY2021, #36 in FY2023, #30 in FY2024 and #36 in FY2025; up 4 since FY2021.
51	Kimin Eng Co., Ltd. Top agencies DLA (Defense Logistics Agency)	$1,042,095	0.1%	Rank history: #59 in FY2021, #42 in FY2023, #53 in FY2024 and not on the FY2025 list; up 8 since FY2021.
52	Stericycle Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$919,934	<0.1%	Rank history: #60 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
53	Willkom, Inc. Top agencies DLA (Defense Logistics Agency)	$821,424	<0.1%	Rank history: #57 in FY2021, #58 in FY2023, #67 in FY2024 and not on the FY2025 list; up 4 since FY2021.
54	CHC GP Top agencies Navy (Department of the Navy)	$819,326	<0.1%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; up 68 since FY2021.
55	Auxilio Management Services Top agencies DOI (Department of the Interior)	$759,526	<0.1%	Rank history: #83 in FY2021, #56 in FY2023, #64 in FY2024 and #63 in FY2025; up 28 since FY2021.
56	Hepaco LLC Top agencies Navy (Department of the Navy)	$739,151	<0.1%	Rank history: not on the FY2021 list, #63 in FY2023 and not on the FY2024–FY2025 lists; up 159 since FY2021.
57	Applied Technology, Inc. Top agencies Navy (Department of the Navy)	$728,297	<0.1%	Rank history: not on the FY2021 list, #23 in FY2023, #46 in FY2024 and #59 in FY2025; up 44 since FY2021.
58	TD Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$696,694	<0.1%	Rank history: #44 in FY2021, #55 in FY2023, #54 in FY2024 and #52 in FY2025; down 14 since FY2021.
59	Lincoln Environmental Services, Inc. Top agencies USAF (Department of the Air Force)	$674,487	<0.1%	Rank history: #62 in FY2021, not on the FY2023 list, #58 in FY2024 and #55 in FY2025; up 3 since FY2021.
60	Onaka Gumi Co.,Ltd. Top agencies DLA (Defense Logistics Agency)	$596,690	<0.1%	Rank history: #65 in FY2021, #72 in FY2023, #62 in FY2024 and #53 in FY2025; up 5 since FY2021.
61	Kankyo Solution Co. Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$595,107	<0.1%	Rank history: #55 in FY2021, #60 in FY2023, #60 in FY2024 and not on the FY2025 list; down 6 since FY2021.
62	Enviroserve Inc. Top agencies USAF (Department of the Air Force)	$592,726	<0.1%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
63	Rethmann AG & Co. KG Through Remondis Industrie Service Gmbh. Top agencies DLA (Defense Logistics Agency)	$589,692	<0.1%	Rank history: #63 in FY2021, #71 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
64	Yamaki Co., Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$584,104	<0.1%	Rank history: #68 in FY2021, #62 in FY2023, #74 in FY2024 and not on the FY2025 list; up 4 since FY2021.
65	Pacific Trans Environmental Services Inc. Top agencies DLA (Defense Logistics Agency)	$551,407	<0.1%	Rank history: #72 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
66	Integrated Solutions, Inc. Top agencies USAF (Department of the Air Force)	$543,830	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
67	Horizon Environmental Solutions Corporation Top agencies DLA (Defense Logistics Agency)	$515,936	<0.1%	Rank history: #70 in FY2021, #31 in FY2023, #61 in FY2024 and #69 in FY2025; up 3 since FY2021.
68	BWX Technologies, Inc. Through Bwxt Nog Technologies, Inc. Top agencies DOE (Department of Energy)	$476,170	<0.1%	Rank history: #69 in FY2021, #64 in FY2023, #69 in FY2024 and #85 in FY2025; up 1 since FY2021.
69	Jim's Tank Service, LLC Top agencies Army (Department of the Army)	$436,358	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #100 in FY2024 and not on the FY2025 list; up 150 since FY2021.
70	Sal Construction Co. Top agencies HHS (Department of Health and Human Services)	$377,280	<0.1%	Rank history: #75 in FY2021, #69 in FY2023, #72 in FY2024 and not on the FY2025 list; up 5 since FY2021.
71	Shin Ho ENV Top agencies Army (Department of the Army)	$361,085	<0.1%	Rank history: not on the FY2021 list, #70 in FY2023 and not on the FY2024–FY2025 lists; up 87 since FY2021.
72	Welding Processes and Mechanical, Inc. Top agencies DLA (Defense Logistics Agency)	$355,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
73	Boom Waste Treatment Company Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$353,840	<0.1%	Rank history: #48 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
74	Kobakyu, K.K. Top agencies USAF (Department of the Air Force)	$353,307	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #83 in FY2024 and #89 in FY2025; new.
75	Biomedical Waste Services, Inc. Top agencies VA (Department of Veterans Affairs)	$343,975	<0.1%	Rank history: #78 in FY2021, #87 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
76	Verina Consulting Group LLC Top agencies USAF (Department of the Air Force)	$327,158	<0.1%	Rank history: #80 in FY2021, #82 in FY2023, #82 in FY2024 and #75 in FY2025; up 4 since FY2021.
77	Hawaii 5-0 Technology Services Inc. Top agencies DHS (Department of Homeland Security)	$322,492	<0.1%	Rank history: #89 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
78	RLA Holdings, Inc. Top agencies USDA (Department of Agriculture)	$320,000	<0.1%	Rank history: not on the FY2021 list, #90 in FY2023 and not on the FY2024–FY2025 lists; up 35 since FY2021.
79	Up-Side Management Co Top agencies Army (Department of the Army)	$310,177	<0.1%	Rank history: #82 in FY2021, #73 in FY2023, #63 in FY2024 and #70 in FY2025; up 3 since FY2021.
80	Ncns Environmental, Inc. Top agencies VA (Department of Veterans Affairs)	$295,728	<0.1%	Rank history: #71 in FY2021, #74 in FY2023, #70 in FY2024 and #91 in FY2025; down 9 since FY2021.
81	Noble Supply & Logistics, LLC Top agencies USAF (Department of the Air Force)	$293,854	<0.1%	Rank history: #79 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
82	Cherokee Nation Environmental Solutions, L.L.C. Top agencies DLA (Defense Logistics Agency)	$291,469	<0.1%	Rank history: #87 in FY2021, #78 in FY2023, #73 in FY2024 and #72 in FY2025; up 5 since FY2021.
83	Jfe-K Iwakuni HW JV Top agencies DLA (Defense Logistics Agency)	$289,771	<0.1%	Rank history: #84 in FY2021, #76 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
84	Reliable Pharmaceutical Returns, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$286,286	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 37 since FY2021.
85	Hamilton Alliance Inc. Top agencies VA (Department of Veterans Affairs)	$286,008	<0.1%	Rank history: #96 in FY2021, #68 in FY2023, #80 in FY2024 and #79 in FY2025; up 11 since FY2021.
86	D'S Ventures, LLC Top agencies HHS (Department of Health and Human Services)	$265,666	<0.1%	Rank history: not on the FY2021 list, #81 in FY2023, #71 in FY2024 and #94 in FY2025; new.
87	Atlas Environmental Consulting, LLC Top agencies DOI (Department of the Interior)	$250,321	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 86 since FY2021.
88	Rad Solutions LLC Top agencies Army (Department of the Army)	$247,717	<0.1%	Rank history: #98 in FY2021, not on the FY2023 list, #68 in FY2024 and not on the FY2025 list; up 10 since FY2021.
89	The Kippur Corp Top agencies DHS (Department of Homeland Security)	$241,000	<0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
90	Marianas Gas Corp Top agencies DLA (Defense Logistics Agency)	$224,226	<0.1%	Rank history: not on the FY2021 list, #25 in FY2023, #26 in FY2024 and #29 in FY2025; new.
91	Environmental Restoration LLC Top agencies DOJ (Department of Justice)	$207,071	<0.1%	Rank history: #93 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
92	Plexus Scientific Corporation Top agencies Commerce (Department of Commerce)	$206,322	<0.1%	Rank history: #86 in FY2021, #52 in FY2023, #77 in FY2024 and not on the FY2025 list; down 6 since FY2021.
93	Elysse Interiors, LLC Top agencies DOS (Department of State)	$204,424	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	Consolidated Waste Services LLC Top agencies VA (Department of Veterans Affairs)	$202,271	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 46 since FY2021.
95	Bechtel Nuclear, Security & Environmental, Inc. Through Bechtel National, Inc. Top agencies Army (Department of the Army)	$195,500	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Set Environmental Inc. Top agencies DOT (Department of Transportation) DOJ (Department of Justice)	$191,774	<0.1%	Rank history: #77 in FY2021, #84 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2021.
97	Medical Waste Transport Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$185,163	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #96 in FY2024 and not on the FY2025 list; up 30 since FY2021.
98	Triumvirate Environmental, LLC Top agencies Army (Department of the Army)	$185,022	<0.1%	Rank history: #100 in FY2021, not on the FY2023 list, #88 in FY2024 and #100 in FY2025; up 2 since FY2021.
99	Schrass GMBH Top agencies Army (Department of the Army)	$154,225	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #84 in FY2024 and not on the FY2025 list; up 67 since FY2021.
100	Envirosafe Demil LLC Top agencies DOJ (Department of Justice)	$151,395	<0.1%	Rank history: not on the FY2021 list, #91 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.

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 $2.05 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 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