Top 100 Contractors in PSC F108: Hazardous Substance Removal, Cleanup, and Disposal Services and Operational Support, FY2022

Name: Top 100 Contractors in PSC F108: Hazardous Substance Removal, Cleanup, and Disposal Services and Operational Support, FY2022
Creator: GovTribe

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

The top 10 won 61% of FY2022 PSC F108 contract dollars

Contract obligations: $1,937,081,144 Net of deobligations, by contracts coded PSC F108
Contractors: 640 Parent companies with an obligation
Largest contractor: Bechtel Corp $786 million, 38.2% 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	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	38.2%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2021.
2	EA Engineering, Science, and Technology, Inc., PBC Top agencies EPA (Environmental Protection Agency) USAF (Department of the Air Force) Army (Department of the Army)	$132,276,086	6.4%	Rank history: #7 in FY2021, #5 in FY2023, #4 in FY2024 and #8 in FY2025; up 5 since FY2021.
3	Environmental Restoration LLC Top agencies EPA (Environmental Protection Agency) DOJ (Department of Justice)	$75,577,593	3.7%	Rank history: #3 in FY2021, #8 in FY2023, #11 in FY2024 and #5 in FY2025; unchanged since FY2021.
4	Hydrogeologic, Inc. Top agencies Army (Department of the Army) EPA (Environmental Protection Agency)	$53,486,813	2.6%	Rank history: #2 in FY2021, #4 in FY2023, #5 in FY2024 and #9 in FY2025; down 2 since FY2021.
5	AECOM 4 awardees, including AECOM Technical Services, Inc., Amentum Environment & Energy, Inc. and Aecom-Atkins Joint Venture Top agencies EPA (Environmental Protection Agency) DOT (Department of Transportation) Navy (Department of the Navy)	$44,725,427	2.2%	Rank history: #33 in FY2021, #3 in FY2023, #46 in FY2024 and not on the FY2025 list; up 28 since FY2021.
6	Amentum Services, Inc. Top agencies Army (Department of the Army)	$38,003,593	1.8%	Rank history: #34 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2021.
7	North Wind Portage, Inc. Top agencies DOE (Department of Energy)	$34,396,891	1.7%	Rank history: not on the FY2021 list, #44 in FY2023, #7 in FY2024 and #6 in FY2025; new.
8	Cabrera Services Inc. Top agencies Army (Department of the Army)	$33,962,542	1.7%	Rank history: #17 in FY2021, #57 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
9	Aptim Federal Services LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$31,103,822	1.5%	Rank history: #27 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2021.
10	Oneida Nation 3 awardees, including Sustainment & Restoration Services, LLC, Oneida Total Integrated Enterprises LLC and OCH JV Top agencies Army (Department of the Army) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$30,988,615	1.5%	Rank history: #14 in FY2021, #13 in FY2023, #38 in FY2024 and not on the FY2025 list; up 4 since FY2021.
11	C M C, Inc. Top agencies EPA (Environmental Protection Agency)	$29,153,011	1.4%	Rank history: #23 in FY2021, #12 in FY2023, #18 in FY2024 and #52 in FY2025; up 12 since FY2021.
12	Cook Inlet Region Inc. 6 awardees, including North Wind Portage, Inc. and North Wind Site Services LLC Top agencies Army (Department of the Army) DOE (Department of Energy)	$26,139,068	1.3%	Rank history: #5 in FY2021, #9 in FY2023, #13 in FY2024 and not on the FY2025 list; down 7 since FY2021.
13	Kemron Environmental Services, Inc. Top agencies EPA (Environmental Protection Agency) Army (Department of the Army) USAF (Department of the Air Force)	$25,796,183	1.3%	Rank history: #10 in FY2021, #23 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
14	Tetra Tech, Inc. 7 awardees Top agencies EPA (Environmental Protection Agency) Army (Department of the Army) USAF (Department of the Air Force)	$24,234,349	1.2%	Rank history: #13 in FY2021, #24 in FY2023, #12 in FY2024 and #13 in FY2025; down 1 since FY2021.
15	Jacobs Engineering Group Inc. 4 awardees, including Ch2M Hill, Inc., Amentum Technology, Inc. and Jacobs Government Services Company Top agencies EPA (Environmental Protection Agency) Army (Department of the Army)	$24,047,419	1.2%	Rank history: #6 in FY2021, #2 in FY2023, #14 in FY2024 and not on the FY2025 list; down 9 since FY2021.
16	Camp Dresser & Mckee Inc. Through CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency)	$23,636,905	1.2%	Rank history: #12 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
17	Kemron / Arrowhead JV, LLC Top agencies EPA (Environmental Protection Agency)	$21,470,023	1.0%	Rank history: #35 in FY2021, #14 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2021.
18	Hgl-Aptim JV LLC Top agencies Army (Department of the Army) EPA (Environmental Protection Agency)	$21,107,775	1.0%	Rank history: not on the FY2021 list, #37 in FY2023, #16 in FY2024 and #20 in FY2025; up 109 since FY2021.
19	Ch2M Hill, Inc. Top agencies EPA (Environmental Protection Agency)	$20,645,512	1.0%	Rank history: #69 in FY2021, #90 in FY2023, #31 in FY2024 and #36 in FY2025; up 50 since FY2021.
20	Brice Engineering, LLC Top agencies Army (Department of the Army)	$18,316,502	0.9%	Rank history: #21 in FY2021, #15 in FY2023, #59 in FY2024 and #28 in FY2025; up 1 since FY2021.
21	F & L Environmental LLC Top agencies USDA (Department of Agriculture)	$17,346,898	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
22	Hdr, Inc. 2 awardees, including HDR Aptim LLC and HDR Engineering, Inc. Top agencies EPA (Environmental Protection Agency) Army (Department of the Army)	$16,458,651	0.8%	Rank history: #32 in FY2021, #27 in FY2023, #63 in FY2024 and #95 in FY2025; up 10 since FY2021.
23	Cape Environmental Management Inc. Top agencies Navy (Department of the Navy)	$16,225,958	0.8%	Rank history: #50 in FY2021, not on the FY2023–FY2024 lists and #48 in FY2025; up 27 since FY2021.
24	Nobis Engineering, Inc. Top agencies EPA (Environmental Protection Agency)	$13,507,003	0.7%	Rank history: #38 in FY2021, #87 in FY2023, #30 in FY2024 and #93 in FY2025; up 14 since FY2021.
25	Energysolutions LLC 2 awardees, including Energysolutions Services, Inc. Top agencies Navy (Department of the Navy)	$13,168,723	0.6%	Rank history: #28 in FY2021, #33 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
26	Itsi Gilbane Japan G.K. 2 awardees, including Gilbane Federal and Ges-Aecom JV Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency)	$12,327,300	0.6%	Rank history: #16 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
27	Arctic Slope Regional Corporation 2 awardees, including Environmental Quality Management, Inc. and EQM Services, LLC Top agencies EPA (Environmental Protection Agency) USAF (Department of the Air Force)	$11,497,687	0.6%	Rank history: #9 in FY2021, #6 in FY2023, #27 in FY2024 and #4 in FY2025; down 18 since FY2021.
28	Fpm-Aecom JV1 Top agencies Army (Department of the Army)	$11,364,433	0.6%	Rank history: not on the FY2021 list, #22 in FY2023, #37 in FY2024 and #50 in FY2025; up 111 since FY2021.
29	Navarro Research and Engineering, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$11,360,179	0.6%	Rank history: #31 in FY2021, #46 in FY2023, #34 in FY2024 and #42 in FY2025; up 2 since FY2021.
30	Parsons Corporation Through Parsons Government Services Inc. Top agencies Army (Department of the Army)	$10,334,966	0.5%	Rank history: #20 in FY2021, #34 in FY2023, #61 in FY2024 and #29 in FY2025; down 10 since FY2021.
31	Weston Solutions Holdings, Inc. Through Weston Solutions Inc. Top agencies EPA (Environmental Protection Agency) Army (Department of the Army)	$9,946,649	0.5%	Rank history: #58 in FY2021, #43 in FY2023, #21 in FY2024 and #38 in FY2025; up 27 since FY2021.
32	Red Rock Remediation JV Top agencies EPA (Environmental Protection Agency)	$8,678,481	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	A and M Engineering & Environmental Services, Inc. Top agencies EPA (Environmental Protection Agency)	$7,833,835	0.4%	Rank history: #36 in FY2021, not on the FY2023 list, #48 in FY2024 and #47 in FY2025; up 3 since FY2021.
34	Paragon-Jacobs Joint Venture, LLC Top agencies Army (Department of the Army)	$7,597,847	0.4%	Rank history: #44 in FY2021, #84 in FY2023, not on the FY2024 list and #77 in FY2025; up 10 since FY2021.
35	Engineering / Remediation Resources Group, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$6,772,806	0.3%	Rank history: #73 in FY2021, #97 in FY2023, #42 in FY2024 and #73 in FY2025; up 38 since FY2021.
36	Versar-Arcadis A Joint Venture Top agencies Army (Department of the Army)	$6,756,229	0.3%	Rank history: #79 in FY2021, #91 in FY2023 and not on the FY2024–FY2025 lists; up 43 since FY2021.
37	Lewis Environmental LLC Top agencies USDA (Department of Agriculture)	$6,712,105	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 428 since FY2021.
38	Patriot Environmental Services, Inc. Top agencies USDA (Department of Agriculture)	$6,598,663	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
39	Ie-Weston Federal Services JVB LLC Top agencies Army (Department of the Army)	$6,539,159	0.3%	Rank history: #30 in FY2021 and not on the FY2023–FY2025 lists; down 9 since FY2021.
40	ST George Tanaq Corp 2 awardees, including Tanaq Environmental LLC and Heliotech Top agencies USAF (Department of the Air Force) EPA (Environmental Protection Agency) Army (Department of the Army)	$6,443,645	0.3%	Rank history: #68 in FY2021, #38 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2021.
41	Bethel Environmental Solutions LLC Top agencies Army (Department of the Army)	$6,121,333	0.3%	Rank history: #57 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
42	Environmental Compliance Consultants, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$6,044,604	0.3%	Rank history: #43 in FY2021, #48 in FY2023, #54 in FY2024 and #76 in FY2025; up 1 since FY2021.
43	Sevenson-Usa Environmental Joint Venture Top agencies Army (Department of the Army)	$5,353,828	0.3%	Rank history: #18 in FY2021, #56 in FY2023 and not on the FY2024–FY2025 lists; down 25 since FY2021.
44	B.E. Scaife Plumbing Company Inc Top agencies EPA (Environmental Protection Agency)	$5,218,922	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
45	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DHS (Department of Homeland Security)	$5,104,887	0.2%	Rank history: #29 in FY2021, #29 in FY2023, #51 in FY2024 and #87 in FY2025; down 16 since FY2021.
46	CDM A Joint Venture Top agencies EPA (Environmental Protection Agency)	$4,898,532	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #91 in FY2024 and not on the FY2025 list; new.
47	KGS Seres 8A JV LLC Top agencies Army (Department of the Army)	$4,860,600	0.2%	Rank history: #47 in FY2021, #62 in FY2023, #67 in FY2024 and #86 in FY2025; unchanged since FY2021.
48	Contaminant Control, Inc. Top agencies USDA (Department of Agriculture)	$4,834,548	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
49	Otie-Pwt JV, LLC Top agencies EPA (Environmental Protection Agency)	$4,456,106	0.2%	Rank history: not on the FY2021 list, #66 in FY2023 and not on the FY2024–FY2025 lists; up 54 since FY2021.
50	Seaon Environmental LLC Top agencies Navy (Department of the Navy)	$4,453,293	0.2%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
51	USA Environmental, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$4,265,823	0.2%	Rank history: not on the FY2021 list, #71 in FY2023 and not on the FY2024–FY2025 lists; new.
52	Pika International, Inc. Top agencies Army (Department of the Army)	$4,246,658	0.2%	Rank history: #46 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
53	Natives of Kodiak, Incorporated 2 awardees, including Environmental Assessment Services, LLC and Koman Government Solutions LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,942,574	0.2%	Rank history: #64 in FY2021, #54 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2021.
54	Montrose Environmental Group Inc. Through Pars Environmental Inc. Top agencies EPA (Environmental Protection Agency)	$3,797,656	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
55	Triumvirate Environmental, LLC Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) Army (Department of the Army)	$3,785,935	0.2%	Rank history: #48 in FY2021, #50 in FY2023, #53 in FY2024 and #51 in FY2025; down 7 since FY2021.
56	Clean Harbors Inc 3 awardees, including Clean Harbors Environmental Services Inc. and Safety-Kleen Systems, Inc. Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$3,762,010	0.2%	Rank history: #83 in FY2021, #67 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2021.
57	Day & Zimmermann Lone Star LLC Top agencies Army (Department of the Army)	$3,612,538	0.2%	Rank history: #70 in FY2021 and not on the FY2023–FY2025 lists; up 13 since FY2021.
58	Tanadgusix Corporation Through Bering Sea Eccotech, LLC Top agencies Navy (Department of the Navy)	$3,476,160	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 43 since FY2021.
59	Ayuda-Plexus Joint Venture LLC Top agencies Army (Department of the Army)	$3,442,143	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Sdc-Philo JV LLC Top agencies Army (Department of the Army)	$3,275,682	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 113 since FY2021.
61	C & C Environmental Inc. Top agencies Army (Department of the Army)	$3,171,472	0.2%	Rank history: #56 in FY2021, #74 in FY2023, #87 in FY2024 and #63 in FY2025; down 5 since FY2021.
62	Petroleum Resources & Development, Inc. Top agencies USAF (Department of the Air Force)	$3,123,398	0.2%	Rank history: not on the FY2021 list, #99 in FY2023, #93 in FY2024 and not on the FY2025 list; new.
63	B&V E&E JV Top agencies EPA (Environmental Protection Agency)	$3,080,801	0.1%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; up 24 since FY2021.
64	Ces-Rescon LLC Top agencies Army (Department of the Army)	$3,078,092	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 120 since FY2021.
65	Tepa, LLC 3 awardees, including Tehama Technical Services, LLC, Tehama ECS LLC and Tehama, LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture) DOI (Department of the Interior)	$2,836,179	0.1%	Rank history: not on the FY2021 list, #80 in FY2023 and not on the FY2024–FY2025 lists; up 85 since FY2021.
66	Native Hawaiian Community Development Corporation 2 awardees, including GSI North America Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,719,946	0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; up 30 since FY2021.
67	Techlaw, Inc. Through Techlaw Consultants Inc. Top agencies EPA (Environmental Protection Agency)	$2,701,297	0.1%	Rank history: #63 in FY2021, #76 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
68	K.i. Kogyo Ltd. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,670,310	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 34 since FY2021.
69	Composting Sme, LLC Top agencies USDA (Department of Agriculture)	$2,610,866	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #80 in FY2025; new.
70	Mecx-Bts Sdvosb JV LLC Top agencies Navy (Department of the Navy)	$2,542,665	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 77 since FY2021.
71	RSI Services LLC Top agencies DOE (Department of Energy)	$2,507,812	0.1%	Rank history: #89 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2021.
72	Bsx, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,381,405	0.1%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
73	Ahtna, Incorporated 4 awardees, including Ahtna Global LLC, Ahtna Engineering Services, LLC and Ahtna Design-Build Inc. Top agencies Army (Department of the Army) DOE (Department of Energy)	$2,349,276	0.1%	Rank history: #26 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; down 47 since FY2021.
74	Versar-Envirocon JV Top agencies EPA (Environmental Protection Agency)	$2,318,673	0.1%	Rank history: not on the FY2021 list, #55 in FY2023 and not on the FY2024–FY2025 lists; new.
75	Hana Engineers & Consultants LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$2,308,284	0.1%	Rank history: not on the FY2021 list, #100 in FY2023 and not on the FY2024–FY2025 lists; new.
76	Bristol Environmental Solutions LLC Top agencies Army (Department of the Army)	$2,285,640	0.1%	Rank history: #11 in FY2021 and not on the FY2023–FY2025 lists; down 65 since FY2021.
77	Plug In Utility Services Corp Top agencies DHS (Department of Homeland Security)	$2,278,157	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
78	Specpro Sustainment and Environmental, LLC Top agencies Army (Department of the Army)	$2,246,766	0.1%	Rank history: #82 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
79	OC Environmental Services LLC Top agencies Army (Department of the Army)	$2,213,917	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
80	Oneida Total Integrated Enterprises LLC Top agencies USAF (Department of the Air Force)	$2,112,581	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #96 in FY2024 and #88 in FY2025; new.
81	Whitetail Environmental, LLC Top agencies Army (Department of the Army)	$2,013,661	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 71 since FY2021.
82	Mellor Engineering Inc. Top agencies Army (Department of the Army)	$1,945,756	0.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2021.
83	G2S LLC Top agencies Army (Department of the Army)	$1,852,669	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 70 since FY2021.
84	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,847,629	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #94 in FY2025; up 40 since FY2021.
85	Srs-Errg JV, LLC Top agencies Navy (Department of the Navy)	$1,845,338	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #97 in FY2024 and not on the FY2025 list; new.
86	Water, Civil and Environmental Incorporated Top agencies Army (Department of the Army)	$1,797,526	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	Perma-Fix Environmental Services, Inc. Top agencies Navy (Department of the Navy)	$1,796,992	0.1%	Rank history: #51 in FY2021 and not on the FY2023–FY2025 lists; down 36 since FY2021.
88	Bethel-Tech Pacific JV Top agencies Navy (Department of the Navy)	$1,745,580	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Veolia Water North America-West LLC Through Veolia Es Technical Solutions LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) EPA (Environmental Protection Agency)	$1,685,424	0.1%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; down 24 since FY2021.
90	Basha Services, LLC Top agencies EPA (Environmental Protection Agency)	$1,598,383	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #89 in FY2025; new.
91	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.
92	Beckrich Construction LLC Top agencies Army (Department of the Army)	$1,530,897	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
93	Seres-Arcadis 8(A) JV, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,527,934	0.1%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
94	Salas O'brien Federal, LLC Top agencies Army (Department of the Army)	$1,481,133	0.1%	Rank history: #41 in FY2021 and not on the FY2023–FY2025 lists; down 53 since FY2021.
95	Leisnoi Diversified Services, LLC Top agencies Army (Department of the Army)	$1,429,970	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Renova-Sovereign Joint Venture Top agencies Army (Department of the Army) Navy (Department of the Navy)	$1,426,479	0.1%	Rank history: #97 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
97	CTL Environmental LLC Top agencies Army (Department of the Army)	$1,344,391	0.1%	Rank history: #81 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
98	Seres-Arcadis SB JV, LLC Top agencies Army (Department of the Army)	$1,343,229	0.1%	Rank history: #76 in FY2021, #49 in FY2023 and not on the FY2024–FY2025 lists; down 22 since FY2021.
99	Cayuse Holdings LLC Through Cayuse Technologies, LLC Top agencies USAF (Department of the Air Force)	$1,215,224	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 22 since FY2021.
100	Osage, LLC Through Osage Pinnacle Design Group LLC Top agencies Army (Department of the Army)	$1,179,296	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 28 since FY2021.

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100 of 640 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 $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

Who were the top 10 PSC F108 contractors in FY2022?

1. Bechtel Corp ($786M), 2. EA Engineering, Science, and Technology, Inc., PBC ($132M), 3. Environmental Restoration LLC ($75.6M), 4. Hydrogeologic, Inc. ($53.5M), 5. AECOM ($44.7M), 6. Amentum Services, Inc. ($38M), 7. North Wind Portage, Inc. ($34.4M), 8. Cabrera Services Inc. ($34M), 9. Aptim Federal Services LLC ($31.1M), 10. Oneida Nation ($31M).

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