Top 100 Contractors in PSC F0: Natural Resource Conservation Services, FY2022

Name: Top 100 Contractors in PSC F0: Natural Resource Conservation Services, FY2022
Creator: GovTribe

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

The top 10 won 16% of FY2022 PSC F0 contract dollars

Contract obligations: $2,053,371,733 Net of deobligations, by contracts coded PSC F0 or a code under it
Contractors: 3,423 Parent companies with an obligation
Largest contractor: Helicopter Transport Services, LLC $62.5 million, 2.8% 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	Helicopter Transport Services, LLC Top agencies USDA (Department of Agriculture)	$62,456,129	2.8%	Rank history: not on the FY2021 list, #10 in FY2023, #14 in FY2024 and #1 in FY2025; new.
2	Perimeter Solutions LP Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$61,890,982	2.8%	Rank history: #1 in FY2021, #1 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
3	Management & Engineering Technologies International Inc. Top agencies USDA (Department of Agriculture)	$45,195,267	2.0%	Rank history: #6 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
4	Billings Flying Service LLC Top agencies USDA (Department of Agriculture)	$42,675,036	1.9%	Rank history: not on the FY2021 list, #5 in FY2023, #11 in FY2024 and #8 in FY2025; new.
5	Tenax Aerospace Holdings LLC Through Tenax Aerospace LLC Top agencies USDA (Department of Agriculture)	$33,028,666	1.5%	Rank history: not on the FY2021 list, #2 in FY2023 and not on the FY2024–FY2025 lists; new.
6	Helicopter Express LLC Top agencies USDA (Department of Agriculture)	$25,293,194	1.1%	Rank history: #46 in FY2021, #12 in FY2023, #2 in FY2024 and #2 in FY2025; up 40 since FY2021.
7	Croman Corp Top agencies USDA (Department of Agriculture)	$24,734,692	1.1%	Rank history: not on the FY2021 list, #9 in FY2023 and not on the FY2024–FY2025 lists; new.
8	Siller Helicopters, LLC Top agencies USDA (Department of Agriculture)	$23,761,091	1.1%	Rank history: not on the FY2021 list, #8 in FY2023, #15 in FY2024 and #4 in FY2025; new.
9	Construction Helicopters, LLC Through Helimax Aviation LLC Top agencies USDA (Department of Agriculture)	$21,533,629	1.0%	Rank history: not on the FY2021 list, #11 in FY2023 and not on the FY2024–FY2025 lists; new.
10	Columbia Helicopters, Inc. Top agencies USDA (Department of Agriculture)	$21,025,110	0.9%	Rank history: not on the FY2021 list, not on the FY2023 list, #84 in FY2024 and not on the FY2025 list; new.
11	Neptune Aviation Services, Inc. Top agencies USDA (Department of Agriculture)	$17,672,972	0.8%	Rank history: #14 in FY2021, #17 in FY2023, #8 in FY2024 and #9 in FY2025; up 3 since FY2021.
12	10 Tanker Air Carrier, LLC Top agencies USDA (Department of Agriculture)	$17,462,246	0.8%	Rank history: #55 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; up 43 since FY2021.
13	Aero Spray Inc Top agencies DOI (Department of the Interior)	$16,222,362	0.7%	Rank history: not on the FY2021 list, #31 in FY2023 and not on the FY2024–FY2025 lists; new.
14	Grayback Forestry, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$15,202,950	0.7%	Rank history: not on the FY2021 list, #14 in FY2023 and not on the FY2024–FY2025 lists; up 404 since FY2021.
15	Summitt Forests, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$14,578,073	0.7%	Rank history: #23 in FY2021, #6 in FY2023, #46 in FY2024 and #60 in FY2025; up 8 since FY2021.
16	Firestorm Wildland Fire Suppression, Inc. Top agencies USDA (Department of Agriculture)	$14,427,729	0.7%	Rank history: not on the FY2021 list, #24 in FY2023, #20 in FY2024 and #19 in FY2025; new.
17	Coulson Aviation (Usa), Inc. Top agencies USDA (Department of Agriculture)	$14,284,300	0.6%	Rank history: not on the FY2021 list, #20 in FY2023, #5 in FY2024 and #7 in FY2025; up 118 since FY2021.
18	Thunder MTN Catering Inc. Top agencies USDA (Department of Agriculture)	$14,140,473	0.6%	Rank history: #15 in FY2021, #69 in FY2023, #47 in FY2024 and #28 in FY2025; down 3 since FY2021.
19	G E Forestry, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$13,955,294	0.6%	Rank history: #20 in FY2021, #25 in FY2023, #30 in FY2024 and not on the FY2025 list; up 1 since FY2021.
20	Imperial Forestry, Incorporated Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$13,723,191	0.6%	Rank history: #17 in FY2021, #15 in FY2023, #25 in FY2024 and #40 in FY2025; down 3 since FY2021.
21	Incident Catering Services, LLC Top agencies USDA (Department of Agriculture)	$12,893,694	0.6%	Rank history: #24 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
22	Oregon State of 6 awardees, including State of Oregon Department of Fish and Wildlife, Pacific States Marine Fisheries Commission and Oregon Dept of Agriculture Top agencies Army (Department of the Army) Commerce (Department of Commerce) DOI (Department of the Interior)	$12,536,688	0.6%	Rank history: #13 in FY2021, #13 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2021.
23	Miller Timber Services, Inc. Top agencies USDA (Department of Agriculture)	$12,334,221	0.6%	Rank history: #47 in FY2021, #48 in FY2023, #50 in FY2024 and #25 in FY2025; up 24 since FY2021.
24	Leisnoi Diversified Services, LLC Top agencies EPA (Environmental Protection Agency)	$12,325,729	0.6%	Rank history: #18 in FY2021, #38 in FY2023, #19 in FY2024 and #61 in FY2025; down 6 since FY2021.
25	Heliqwest International Inc. Top agencies USDA (Department of Agriculture)	$11,896,603	0.5%	Rank history: #69 in FY2021, not on the FY2023 list, #55 in FY2024 and #55 in FY2025; up 44 since FY2021.
26	Pacific Oasis Inc. Top agencies USDA (Department of Agriculture)	$11,870,028	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
27	Cutting Edge Forestry, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$11,470,603	0.5%	Rank history: #25 in FY2021, #42 in FY2023, #53 in FY2024 and not on the FY2025 list; down 2 since FY2021.
28	Delta Land Services LLC Top agencies Army (Department of the Army)	$11,206,570	0.5%	Rank history: #5 in FY2021, #36 in FY2023, not on the FY2024 list and #94 in FY2025; down 23 since FY2021.
29	R & G Food Services Inc. Top agencies USDA (Department of Agriculture)	$11,136,252	0.5%	Rank history: #11 in FY2021, not on the FY2023–FY2024 lists and #82 in FY2025; down 18 since FY2021.
30	Tetra Tech, Inc. 3 awardees, including Ard, Inc. Top agencies USAID (US Agency for International Development) Army (Department of the Army) DHS (Department of Homeland Security)	$10,943,640	0.5%	Rank history: #19 in FY2021, #21 in FY2023, #36 in FY2024 and not on the FY2025 list; down 11 since FY2021.
31	Patrick Environmental Inc. Top agencies USDA (Department of Agriculture)	$10,807,468	0.5%	Rank history: not on the FY2021 list, #22 in FY2023, #17 in FY2024 and #16 in FY2025; new.
32	Sweat US LLC Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) USAF (Department of the Air Force)	$10,396,355	0.5%	Rank history: #27 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
33	Brainerd Helicopters, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$9,358,666	0.4%	Rank history: not on the FY2021 list, #43 in FY2023, #40 in FY2024 and #58 in FY2025; up 189 since FY2021.
34	Dynamic Aviation Group, Inc. Top agencies USDA (Department of Agriculture)	$9,284,746	0.4%	Rank history: #35 in FY2021, #67 in FY2023, #67 in FY2024 and #34 in FY2025; up 1 since FY2021.
35	Hillsboro Aviation, Inc. Top agencies USDA (Department of Agriculture)	$9,195,537	0.4%	Rank history: #88 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; up 53 since FY2021.
36	Nova Group Inc. Through P.j. Helicopters, Inc. Top agencies USDA (Department of Agriculture)	$8,928,748	0.4%	Rank history: not on the FY2021 list, #49 in FY2023 and not on the FY2024–FY2025 lists; new.
37	Precision, LLC Top agencies USDA (Department of Agriculture)	$8,889,128	0.4%	Rank history: not on the FY2021 list, #80 in FY2023, #12 in FY2024 and #10 in FY2025; up 259 since FY2021.
38	Big Sky Mobile Catering Corp Top agencies USDA (Department of Agriculture)	$8,730,336	0.4%	Rank history: #8 in FY2021, #54 in FY2023, #42 in FY2024 and #27 in FY2025; down 30 since FY2021.
39	Bluesky Helicopters Inc. Top agencies USDA (Department of Agriculture)	$8,496,060	0.4%	Rank history: not on the FY2021 list, #39 in FY2023, #43 in FY2024 and #36 in FY2025; new.
40	Timberline Helicopters Inc. Top agencies USDA (Department of Agriculture)	$8,371,838	0.4%	Rank history: not on the FY2021 list, #68 in FY2023, #41 in FY2024 and #52 in FY2025; new.
41	North Pacific Forestry, Inc. Top agencies USDA (Department of Agriculture)	$8,289,901	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 117 since FY2021.
42	Ponderosa Aviation Inc. Top agencies USDA (Department of Agriculture)	$8,204,898	0.4%	Rank history: not on the FY2021 list, #46 in FY2023, #27 in FY2024 and #54 in FY2025; up 209 since FY2021.
43	Rampart Helicopter Services, LLC Top agencies USDA (Department of Agriculture)	$8,082,660	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
44	Erickson Incorporated Top agencies USDA (Department of Agriculture)	$8,060,227	0.4%	Rank history: not on the FY2021 list, #26 in FY2023 and not on the FY2024–FY2025 lists; new.
45	Ponderosa Timberland, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$7,908,542	0.4%	Rank history: not on the FY2021 list, #47 in FY2023, #31 in FY2024 and not on the FY2025 list; up 72 since FY2021.
46	Hillcrest Aircraft Company Top agencies USDA (Department of Agriculture)	$7,738,556	0.3%	Rank history: not on the FY2021 list, #55 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2021.
47	A.i.s., Inc. Top agencies Commerce (Department of Commerce)	$7,554,706	0.3%	Rank history: #30 in FY2021, #71 in FY2023, #29 in FY2024 and #39 in FY2025; down 17 since FY2021.
48	Capitol Helicopters, Inc. Top agencies USDA (Department of Agriculture)	$7,256,608	0.3%	Rank history: not on the FY2021 list, #45 in FY2023, #26 in FY2024 and #14 in FY2025; new.
49	Top Gun Lighting and Industrial Supplies, LLC Top agencies USDA (Department of Agriculture)	$7,241,327	0.3%	Rank history: #87 in FY2021, #74 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2021.
50	Minuteman Aviation Inc. Top agencies USDA (Department of Agriculture)	$7,050,545	0.3%	Rank history: not on the FY2021 list, #82 in FY2023, #81 in FY2024 and #63 in FY2025; up 380 since FY2021.
51	Oneida Nation 2 awardees, including Sustainment & Restoration Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$6,682,325	0.3%	Rank history: #21 in FY2021 and not on the FY2023–FY2025 lists; down 30 since FY2021.
52	Franco Reforestation Inc. Top agencies USDA (Department of Agriculture)	$6,659,322	0.3%	Rank history: #44 in FY2021, #41 in FY2023, #90 in FY2024 and #67 in FY2025; down 8 since FY2021.
53	Bighorn Airways Inc. Top agencies USDA (Department of Agriculture)	$6,452,093	0.3%	Rank history: not on the FY2021 list, #78 in FY2023, #56 in FY2024 and #20 in FY2025; new.
54	Hgl-Aptim JV LLC Top agencies Army (Department of the Army)	$6,444,587	0.3%	Rank history: #29 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; down 25 since FY2021.
55	Spur Aviation Services, LC Top agencies USDA (Department of Agriculture)	$6,341,232	0.3%	Rank history: not on the FY2021 list, #64 in FY2023, #23 in FY2024 and #29 in FY2025; new.
56	Emergency Response Logistics, LLC Top agencies USDA (Department of Agriculture)	$6,255,771	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 45 since FY2021.
57	Central Copters, Inc. Top agencies USDA (Department of Agriculture)	$6,249,568	0.3%	Rank history: not on the FY2021 list, #79 in FY2023, #73 in FY2024 and #56 in FY2025; new.
58	Mountain Air LLC Top agencies USDA (Department of Agriculture)	$6,169,636	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
59	Trans Aero LLC Top agencies USDA (Department of Agriculture)	$6,073,933	0.3%	Rank history: not on the FY2021 list, #59 in FY2023, #35 in FY2024 and #47 in FY2025; up 94 since FY2021.
60	Southwest Contracting & Associates LLC Top agencies USDA (Department of Agriculture)	$6,055,054	0.3%	Rank history: not on the FY2021 list, #66 in FY2023 and not on the FY2024–FY2025 lists; up 70 since FY2021.
61	D F Zee's Firefighting Catering, LLC Top agencies USDA (Department of Agriculture)	$5,969,076	0.3%	Rank history: #31 in FY2021, not on the FY2023–FY2024 lists and #98 in FY2025; down 30 since FY2021.
62	J3 Contracting, Inc. Top agencies USDA (Department of Agriculture)	$5,905,753	0.3%	Rank history: #48 in FY2021, not on the FY2023 list, #60 in FY2024 and #86 in FY2025; down 14 since FY2021.
63	Rotak LLC Top agencies USDA (Department of Agriculture)	$5,768,650	0.3%	Rank history: not on the FY2021 list, #18 in FY2023, #13 in FY2024 and #5 in FY2025; new.
64	Crewzers Fire Crew Transport Inc. Top agencies USDA (Department of Agriculture)	$5,706,600	0.3%	Rank history: #32 in FY2021 and not on the FY2023–FY2025 lists; down 32 since FY2021.
65	Lynker Corporation Top agencies Commerce (Department of Commerce)	$5,687,809	0.3%	Rank history: #51 in FY2021, #77 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
66	Blue Mountain Contracting, Inc. Top agencies USDA (Department of Agriculture)	$5,640,454	0.3%	Rank history: not on the FY2021 list, #96 in FY2023, #92 in FY2024 and not on the FY2025 list; new.
67	For Stars Express, Inc. Top agencies USDA (Department of Agriculture)	$5,615,463	0.3%	Rank history: #22 in FY2021 and not on the FY2023–FY2025 lists; down 45 since FY2021.
68	Rogers Helicopters Inc. Top agencies USDA (Department of Agriculture)	$5,558,137	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 125 since FY2021.
69	Expeditors By Lindale Inc. Top agencies USDA (Department of Agriculture)	$5,502,508	0.2%	Rank history: not on the FY2021 list, #83 in FY2023 and not on the FY2024–FY2025 lists; up 50 since FY2021.
70	Houston's Too LC Top agencies USDA (Department of Agriculture)	$5,458,531	0.2%	Rank history: #7 in FY2021, #70 in FY2023, #59 in FY2024 and #31 in FY2025; down 63 since FY2021.
71	Pacific States Marine Fisheries Commission Top agencies Commerce (Department of Commerce)	$5,439,315	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #83 in FY2024 and #76 in FY2025; new.
72	Sierra Forest Products Top agencies USDA (Department of Agriculture)	$5,389,070	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 382 since FY2021.
73	Calista Corp Through Brice Environmental Services Corporation Top agencies Army (Department of the Army)	$5,375,828	0.2%	Rank history: #43 in FY2021, #76 in FY2023 and not on the FY2024–FY2025 lists; down 30 since FY2021.
74	American Construction Co., Inc. Top agencies Army (Department of the Army)	$5,321,550	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
75	AAA Mobile Basecamp, LLC Top agencies USDA (Department of Agriculture)	$5,309,182	0.2%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
76	Lava River Forestry Inc. Top agencies USDA (Department of Agriculture)	$5,192,890	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #79 in FY2024 and not on the FY2025 list; up 143 since FY2021.
77	Wilderness Medics, Inc. Top agencies USDA (Department of Agriculture)	$5,133,671	0.2%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; down 21 since FY2021.
78	Idaho Helicopters Inc. Top agencies USDA (Department of Agriculture)	$5,001,500	0.2%	Rank history: not on the FY2021 list, #91 in FY2023, #76 in FY2024 and #77 in FY2025; up 311 since FY2021.
79	Church Branch Mitigation, LLC Top agencies Army (Department of the Army)	$4,993,200	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
80	Outback Firefighting, Inc. Top agencies USDA (Department of Agriculture)	$4,808,438	0.2%	Rank history: #62 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
81	Torres Contracting, Inc. Top agencies USDA (Department of Agriculture)	$4,711,730	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #52 in FY2024 and #57 in FY2025; new.
82	IO Environmental and Infrastructure Incorporated Top agencies Navy (Department of the Navy)	$4,697,291	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 28 since FY2021.
83	West Coast Reforestation Inc. Top agencies USDA (Department of Agriculture)	$4,693,607	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #54 in FY2024 and #35 in FY2025; new.
84	Swanson Group Inc. Through Swanson Group Aviation, LLC Top agencies USDA (Department of Agriculture)	$4,690,639	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	State of California Controllers Office 8 awardees, including California Department of Fish & Wildlife, California Conservation Corps and University of California, Davis Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) Army (Department of the Army)	$4,664,006	0.2%	Rank history: #79 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
86	The Davey Tree Expert Company 3 awardees, including Davey Resource Group, Inc. Top agencies USDA (Department of Agriculture) DOE (Department of Energy) National Gallery of Art	$4,422,875	0.2%	Rank history: #50 in FY2021 and not on the FY2023–FY2025 lists; down 36 since FY2021.
87	Columbia Basin Helicopter, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$4,364,196	0.2%	Rank history: not on the FY2021 list, #85 in FY2023, not on the FY2024 list and #43 in FY2025; new.
88	Corrections Colorado Department of Through Colorado Department of Corrections Top agencies DOI (Department of the Interior)	$4,360,838	0.2%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 27 since FY2021.
89	Front Line Ems LLC Top agencies USDA (Department of Agriculture)	$4,284,644	0.2%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; down 22 since FY2021.
90	Joe Hester Logging, LLC Top agencies USDA (Department of Agriculture)	$4,223,940	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 130 since FY2021.
91	OC Forestry, Incorporated Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$4,180,303	0.2%	Rank history: #28 in FY2021 and not on the FY2023–FY2025 lists; down 63 since FY2021.
92	Hdr, Inc. 2 awardees, including HDR Environmental, Operations and Construction, Inc. Top agencies Navy (Department of the Navy)	$4,179,419	0.2%	Rank history: #39 in FY2021 and not on the FY2023–FY2025 lists; down 53 since FY2021.
93	Coastal Helicopters, LLC Top agencies USDA (Department of Agriculture)	$4,157,885	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 179 since FY2021.
94	Sprout Forestry Incorporated Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$4,058,373	0.2%	Rank history: not on the FY2021 list, #73 in FY2023, #87 in FY2024 and #79 in FY2025; up 27 since FY2021.
95	Saltwater Inc. Top agencies Commerce (Department of Commerce)	$4,040,662	0.2%	Rank history: #53 in FY2021 and not on the FY2023–FY2025 lists; down 42 since FY2021.
96	Adventure Medics LLC Top agencies USDA (Department of Agriculture)	$3,931,438	0.2%	Rank history: #16 in FY2021 and not on the FY2023–FY2025 lists; down 80 since FY2021.
97	Stewart's Firefighter Food Catering, Inc. Top agencies USDA (Department of Agriculture)	$3,926,917	0.2%	Rank history: #33 in FY2021, #61 in FY2023, #97 in FY2024 and not on the FY2025 list; down 64 since FY2021.
98	Dean Innovations, Inc. Top agencies USDA (Department of Agriculture)	$3,886,915	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 119 since FY2021.
99	American Medical Response Inc. 3 awardees, including Rural / Metro Fire Dept., Inc., American Medical Response Northwest, Inc. and American Medical Response West Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$3,862,601	0.2%	Rank history: not on the FY2021 list, #75 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
100	Cattoor Livestock Roundup, Inc. Top agencies DOI (Department of the Interior)	$3,776,818	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 4 since FY2021.

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100 of 3,423 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC F0

Code	Net obligations	Largest contractor
F003 Forest/Range Fire Suppression/Presuppression Services	$1,402,650,005	Helicopter Transport Services, LLC
F099 Other Natural Resources and Conservation Services	$162,324,446	Delta Land Services LLC
F014 Tree Thinning Services	$102,036,367	G E Forestry, Inc.
F018 Other Range/Forest Improvements Services (non-construction)	$94,145,862	Management & Engineering Technologies International Inc.
F016 Wildhorse/Burro Control Services	$62,899,189	Corrections Colorado Department of
F020 Fisheries Resources Management Services	$55,576,354	A.i.s., Inc.
F006 Land Treatment Practices Services (plowing/clearing, etc.)	$37,060,688	Southwest Contracting & Associates LLC
F021 Site Preparation	$32,323,563	Leisnoi Diversified Services, LLC
F005 Forest Tree Planting Services	$20,408,477	Sprout Forestry Incorporated
F004 Forest/Range Fire Rehabilitation Services (non-construction)	$15,887,580	Imperial Forestry, Incorporated
F001 Aerial Fertilization/Spraying Services	$13,080,592	Dynamic Aviation Group, Inc.
F019 Other Wildlife Management Services	$10,204,878	Hoolaulima Government Solutions, LLC
F015 Well Drilling/Exploratory Services	$6,260,773	Arctic Slope Regional Corporation
F009 Seed Collection/Production Services	$6,223,861	Benson Farms, Inc.
F008 Recreation Site Maintenance Services (non-construction)	$5,460,348	Four Peaks Environmental Science & Data Solutions LLC

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 $2.22 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 F0 contractors in FY2022?

1. Helicopter Transport Services, LLC ($62.5M), 2. Perimeter Solutions LP ($61.9M), 3. Management & Engineering Technologies International Inc. ($45.2M), 4. Billings Flying Service LLC ($42.7M), 5. Tenax Aerospace Holdings LLC ($33M), 6. Helicopter Express LLC ($25.3M), 7. Croman Corp ($24.7M), 8. Siller Helicopters, LLC ($23.8M), 9. Construction Helicopters, LLC ($21.5M), 10. Columbia Helicopters, Inc. ($21M).

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