Top 100 Contractors in PSC F0: Natural Resource Conservation Services, FY2023

Name: Top 100 Contractors in PSC F0: Natural Resource Conservation Services, FY2023
Creator: GovTribe

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

The top 10 won 15% of FY2023 PSC F0 contract dollars

Contract obligations: $2,241,638,041 Net of deobligations, by contracts coded PSC F0 or a code under it
Contractors: 3,431 Parent companies with an obligation
Largest contractor: Perimeter Solutions LP $65.1 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	Perimeter Solutions LP Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$65,088,030	2.8%	Rank history: #1 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
2	Tenax Aerospace Holdings LLC Through Tenax Aerospace LLC Top agencies USDA (Department of Agriculture)	$53,976,709	2.3%	Rank history: not on the FY2021 list, #5 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
3	J W Bamford Inc Through J.w. Bamford, Inc. Top agencies USDA (Department of Agriculture)	$36,600,320	1.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 188 since FY2022.
4	Burnbot Inc. Top agencies USDA (Department of Agriculture)	$30,545,428	1.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
5	Billings Flying Service LLC Top agencies USDA (Department of Agriculture)	$27,919,253	1.2%	Rank history: not on the FY2021 list, #4 in FY2022, #11 in FY2024 and #8 in FY2025; down 1 since FY2022.
6	Summitt Forests, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$27,398,451	1.2%	Rank history: #23 in FY2021, #15 in FY2022, #46 in FY2024 and #60 in FY2025; up 9 since FY2022.
7	10 Tanker Air Carrier, LLC Top agencies USDA (Department of Agriculture)	$27,366,213	1.2%	Rank history: #55 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
8	Siller Helicopters, LLC Top agencies USDA (Department of Agriculture)	$25,717,364	1.1%	Rank history: not on the FY2021 list, #8 in FY2022, #15 in FY2024 and #4 in FY2025; unchanged since FY2022.
9	Croman Corp Top agencies USDA (Department of Agriculture)	$25,002,159	1.1%	Rank history: not on the FY2021 list, #7 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
10	Helicopter Transport Services, LLC Top agencies USDA (Department of Agriculture)	$23,798,685	1.0%	Rank history: not on the FY2021 list, #1 in FY2022, #14 in FY2024 and #1 in FY2025; down 9 since FY2022.
11	Construction Helicopters, LLC 2 awardees, including Helimax Aviation LLC Top agencies USDA (Department of Agriculture)	$23,518,989	1.0%	Rank history: not on the FY2021 list, #9 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
12	Helicopter Express LLC Top agencies USDA (Department of Agriculture)	$22,879,032	1.0%	Rank history: #46 in FY2021, #6 in FY2022, #2 in FY2024 and #2 in FY2025; down 6 since FY2022.
13	Oregon State of 6 awardees, including State of Oregon Department of Fish and Wildlife, Pacific States Marine Fisheries Commission and Oregon Department of Forestry Top agencies Army (Department of the Army) Commerce (Department of Commerce) USDA (Department of Agriculture)	$21,295,090	0.9%	Rank history: #13 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
14	Grayback Forestry, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$19,031,592	0.8%	Rank history: not on the FY2021 list, #14 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
15	Imperial Forestry, Incorporated Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$18,633,738	0.8%	Rank history: #17 in FY2021, #20 in FY2022, #25 in FY2024 and #40 in FY2025; up 5 since FY2022.
16	Markit! Forestry Management LLC Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$17,391,386	0.7%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2024 and not on the FY2025 list; up 291 since FY2022.
17	Neptune Aviation Services, Inc. Top agencies USDA (Department of Agriculture)	$16,365,931	0.7%	Rank history: #14 in FY2021, #11 in FY2022, #8 in FY2024 and #9 in FY2025; down 6 since FY2022.
18	Rotak LLC Top agencies USDA (Department of Agriculture)	$15,894,335	0.7%	Rank history: not on the FY2021 list, #63 in FY2022, #13 in FY2024 and #5 in FY2025; up 45 since FY2022.
19	Management & Engineering Technologies International Inc. Top agencies USDA (Department of Agriculture)	$15,041,467	0.6%	Rank history: #6 in FY2021, #3 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
20	Coulson Aviation (Usa), Inc. Top agencies USDA (Department of Agriculture)	$14,504,079	0.6%	Rank history: not on the FY2021 list, #17 in FY2022, #5 in FY2024 and #7 in FY2025; down 3 since FY2022.
21	Tetra Tech, Inc. 4 awardees, including Ard, Inc. Top agencies USAID (US Agency for International Development) USDA (Department of Agriculture) DHS (Department of Homeland Security)	$14,384,645	0.6%	Rank history: #19 in FY2021, #30 in FY2022, #36 in FY2024 and not on the FY2025 list; up 9 since FY2022.
22	Patrick Environmental Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$14,270,687	0.6%	Rank history: not on the FY2021 list, #31 in FY2022, #17 in FY2024 and #16 in FY2025; up 9 since FY2022.
23	Crawford Bros., Inc. Top agencies USDA (Department of Agriculture)	$14,121,491	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	Firestorm Wildland Fire Suppression, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$13,856,717	0.6%	Rank history: not on the FY2021 list, #16 in FY2022, #20 in FY2024 and #19 in FY2025; down 8 since FY2022.
25	G E Forestry, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$13,647,651	0.6%	Rank history: #20 in FY2021, #19 in FY2022, #30 in FY2024 and not on the FY2025 list; down 6 since FY2022.
26	Erickson Incorporated Top agencies USDA (Department of Agriculture)	$13,336,527	0.6%	Rank history: not on the FY2021 list, #44 in FY2022 and not on the FY2024–FY2025 lists; up 18 since FY2022.
27	Black Knight Enterprises Inc. Top agencies USDA (Department of Agriculture)	$13,170,064	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Aero Air, LLC Top agencies USDA (Department of Agriculture)	$13,127,448	0.6%	Rank history: #41 in FY2021, not on the FY2022 list, #6 in FY2024 and #6 in FY2025; returned.
29	Brink Brothers Inc. Top agencies USDA (Department of Agriculture)	$12,700,824	0.5%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and #23 in FY2025; new.
30	The Texas A&M University System 4 awardees, including Texas A & M University Kingsville, Texas A & M University At Galveston and Texas Wildlife Damage Management Service Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$12,285,148	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	Aero Spray Inc Top agencies DOI (Department of the Interior)	$11,915,207	0.5%	Rank history: not on the FY2021 list, #13 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
32	Aero-Flite, Inc. Top agencies USDA (Department of Agriculture)	$11,894,436	0.5%	Rank history: #26 in FY2021, not on the FY2022 list, #9 in FY2024 and #13 in FY2025; returned.
33	Quicksilver Contracting Co Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$11,327,854	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 159 since FY2022.
34	Pacific OASIS Inc Top agencies USDA (Department of Agriculture)	$10,689,155	0.5%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2024 and #24 in FY2025; new.
35	Geomorph Information Systems LLC Top agencies USDA (Department of Agriculture)	$10,502,745	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
36	Delta Land Services LLC Top agencies Army (Department of the Army)	$10,101,000	0.4%	Rank history: #5 in FY2021, #28 in FY2022, not on the FY2024 list and #94 in FY2025; down 8 since FY2022.
37	R & R Conner Aviation, LLC Top agencies USDA (Department of Agriculture)	$10,094,634	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	Leisnoi Diversified Services, LLC Top agencies EPA (Environmental Protection Agency)	$9,996,821	0.4%	Rank history: #18 in FY2021, #24 in FY2022, #19 in FY2024 and #61 in FY2025; down 14 since FY2022.
39	Bluesky Helicopters Inc. Top agencies USDA (Department of Agriculture)	$9,819,330	0.4%	Rank history: not on the FY2021 list, #39 in FY2022, #43 in FY2024 and #36 in FY2025; unchanged since FY2022.
40	TWC Corp Top agencies USDA (Department of Agriculture)	$9,814,569	0.4%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2024 and not on the FY2025 list; up 117 since FY2022.
41	Franco Reforestation Inc. Top agencies USDA (Department of Agriculture)	$9,807,406	0.4%	Rank history: #44 in FY2021, #52 in FY2022, #90 in FY2024 and #67 in FY2025; up 11 since FY2022.
42	Cutting Edge Forestry, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$9,641,261	0.4%	Rank history: #25 in FY2021, #27 in FY2022, #53 in FY2024 and not on the FY2025 list; down 15 since FY2022.
43	Brainerd Helicopters, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$9,596,038	0.4%	Rank history: not on the FY2021 list, #33 in FY2022, #40 in FY2024 and #58 in FY2025; down 10 since FY2022.
44	San Joaquin Forest Products, LLC Top agencies USDA (Department of Agriculture)	$9,580,858	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Capitol Helicopters, Inc. Top agencies USDA (Department of Agriculture)	$9,526,917	0.4%	Rank history: not on the FY2021 list, #48 in FY2022, #26 in FY2024 and #14 in FY2025; up 3 since FY2022.
46	Ponderosa Aviation Inc. Top agencies USDA (Department of Agriculture)	$9,135,215	0.4%	Rank history: not on the FY2021 list, #42 in FY2022, #27 in FY2024 and #54 in FY2025; down 4 since FY2022.
47	Ponderosa Timberland, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$9,005,602	0.4%	Rank history: not on the FY2021 list, #45 in FY2022, #31 in FY2024 and not on the FY2025 list; down 2 since FY2022.
48	Miller Timber Services, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$8,958,974	0.4%	Rank history: #47 in FY2021, #23 in FY2022, #50 in FY2024 and #25 in FY2025; down 25 since FY2022.
49	Nova Group Inc. Through P.j. Helicopters, Inc. Top agencies USDA (Department of Agriculture)	$8,949,208	0.4%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
50	Hillsboro Aviation, Inc. Top agencies USDA (Department of Agriculture)	$8,709,052	0.4%	Rank history: #88 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
51	The Gallup Organization Through Gallup, Inc. Top agencies Commerce (Department of Commerce)	$8,685,054	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Peterson Timber, Inc. Top agencies USDA (Department of Agriculture)	$8,582,886	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
53	OC Forestry Inc Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$8,390,743	0.4%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and not on the FY2025 list; up 63 since FY2022.
54	Big Sky Mobile Catering Corp Top agencies USDA (Department of Agriculture)	$8,375,960	0.4%	Rank history: #8 in FY2021, #38 in FY2022, #42 in FY2024 and #27 in FY2025; down 16 since FY2022.
55	Hillcrest Aircraft Company Top agencies USDA (Department of Agriculture)	$8,128,726	0.3%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
56	Apex Enterprises, Inc. Top agencies USDA (Department of Agriculture)	$7,923,276	0.3%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and not on the FY2025 list; new.
57	Technical and Engineering Support Alliance, LLC Top agencies Commerce (Department of Commerce)	$7,841,357	0.3%	Rank history: #36 in FY2021, not on the FY2022 list, #89 in FY2024 and not on the FY2025 list; up 120 since FY2022.
58	North Pacific Forestry Inc. Top agencies USDA (Department of Agriculture)	$7,789,568	0.3%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and #51 in FY2025; new.
59	Trans Aero LLC Top agencies USDA (Department of Agriculture)	$7,684,916	0.3%	Rank history: not on the FY2021 list, #59 in FY2022, #35 in FY2024 and #47 in FY2025; unchanged since FY2022.
60	Hgl-Aptim JV LLC Top agencies Army (Department of the Army)	$7,683,402	0.3%	Rank history: #29 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
61	Stewart's Firefighter Food Catering, Inc. Top agencies USDA (Department of Agriculture)	$7,647,675	0.3%	Rank history: #33 in FY2021, #97 in FY2022, #97 in FY2024 and not on the FY2025 list; up 36 since FY2022.
62	Statistical Research Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) Navy (Department of the Navy)	$7,474,966	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	MR. Tree, Inc. Top agencies USDA (Department of Agriculture)	$7,428,282	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Spur Aviation Services, LC Top agencies USDA (Department of Agriculture)	$7,247,536	0.3%	Rank history: not on the FY2021 list, #55 in FY2022, #23 in FY2024 and #29 in FY2025; down 9 since FY2022.
65	Mark D Scott JR Top agencies USDA (Department of Agriculture)	$7,019,908	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	Southwest Contracting & Associates LLC Top agencies USDA (Department of Agriculture)	$6,998,308	0.3%	Rank history: not on the FY2021 list, #60 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
67	Dynamic Aviation Group, Inc. Top agencies USDA (Department of Agriculture)	$6,792,667	0.3%	Rank history: #35 in FY2021, #34 in FY2022, #67 in FY2024 and #34 in FY2025; down 33 since FY2022.
68	Timberline Helicopters Inc. Top agencies USDA (Department of Agriculture)	$6,751,838	0.3%	Rank history: not on the FY2021 list, #40 in FY2022, #41 in FY2024 and #52 in FY2025; down 28 since FY2022.
69	Thunder MTN Catering Inc. Top agencies USDA (Department of Agriculture)	$6,500,998	0.3%	Rank history: #15 in FY2021, #18 in FY2022, #47 in FY2024 and #28 in FY2025; down 51 since FY2022.
70	Houston's Too LC Top agencies USDA (Department of Agriculture)	$6,400,436	0.3%	Rank history: #7 in FY2021, #70 in FY2022, #59 in FY2024 and #31 in FY2025; unchanged since FY2022.
71	A.i.s., Inc. Top agencies Commerce (Department of Commerce)	$6,234,309	0.3%	Rank history: #30 in FY2021, #47 in FY2022, #29 in FY2024 and #39 in FY2025; down 24 since FY2022.
72	Kiser Construction Top agencies USDA (Department of Agriculture)	$6,205,820	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Sprout Forestry Incorporated Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$6,195,447	0.3%	Rank history: not on the FY2021 list, #94 in FY2022, #87 in FY2024 and #79 in FY2025; up 21 since FY2022.
74	Top Gun Lighting and Industrial Supplies, LLC Top agencies USDA (Department of Agriculture)	$6,054,041	0.3%	Rank history: #87 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
75	American Medical Response Inc. 2 awardees, including Rural / Metro Fire Dept., Inc. and American Medical Response Northwest, Inc. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$5,973,101	0.3%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
76	Calista Corp Through Brice Environmental Services Corporation Top agencies Army (Department of the Army)	$5,872,053	0.3%	Rank history: #43 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
77	Lynker Corporation Top agencies Commerce (Department of Commerce)	$5,646,495	0.2%	Rank history: #51 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
78	Bighorn Airways Inc. Top agencies USDA (Department of Agriculture)	$5,593,045	0.2%	Rank history: not on the FY2021 list, #53 in FY2022, #56 in FY2024 and #20 in FY2025; down 25 since FY2022.
79	Central Copters, Inc. Top agencies USDA (Department of Agriculture)	$5,556,818	0.2%	Rank history: not on the FY2021 list, #57 in FY2022, #73 in FY2024 and #56 in FY2025; down 22 since FY2022.
80	Precision, LLC Top agencies USDA (Department of Agriculture)	$5,545,395	0.2%	Rank history: not on the FY2021 list, #37 in FY2022, #12 in FY2024 and #10 in FY2025; down 43 since FY2022.
81	West Forest, Inc. Top agencies USDA (Department of Agriculture)	$5,364,538	0.2%	Rank history: #75 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 409 since FY2022.
82	Minuteman Aviation Inc. Top agencies USDA (Department of Agriculture)	$5,278,850	0.2%	Rank history: not on the FY2021 list, #50 in FY2022, #81 in FY2024 and #63 in FY2025; down 32 since FY2022.
83	Expeditors By Lindale Inc. Top agencies USDA (Department of Agriculture)	$5,250,240	0.2%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
84	All American Emergency Services Top agencies USDA (Department of Agriculture)	$5,175,390	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 122 since FY2022.
85	Columbia Basin Helicopter, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$5,127,409	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2024 list and #43 in FY2025; up 2 since FY2022.
86	Gold Aero Inc. Top agencies USDA (Department of Agriculture)	$5,115,435	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #72 in FY2025; up 85 since FY2022.
87	Chiricahua Procurement LLC Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$4,969,582	0.2%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and not on the FY2025 list; up 31 since FY2022.
88	Storm Services Engineering, LLC Top agencies USDA (Department of Agriculture)	$4,914,975	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 19 since FY2022.
89	Skydance Helicopters of Northern Nevada Top agencies USDA (Department of Agriculture)	$4,874,344	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 71 since FY2022.
90	Alpine Services LLC Top agencies USDA (Department of Agriculture)	$4,866,238	0.2%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and #30 in FY2025; new.
91	Idaho Helicopters Inc. Top agencies USDA (Department of Agriculture)	$4,847,654	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, #76 in FY2024 and #77 in FY2025; down 13 since FY2022.
92	Guardian Helicopters Inc Top agencies USDA (Department of Agriculture)	$4,835,046	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Alta Pacific Fire Fighting, LLC Top agencies USDA (Department of Agriculture)	$4,781,903	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #49 in FY2025; up 155 since FY2022.
94	Zimmetal and Welding, LLC Top agencies DOI (Department of the Interior)	$4,761,300	0.2%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2024 and not on the FY2025 list; up 23 since FY2022.
95	HELI-1 Corp Top agencies USDA (Department of Agriculture)	$4,667,160	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Blue Mountain Contracting, Inc. Top agencies USDA (Department of Agriculture)	$4,638,053	0.2%	Rank history: not on the FY2021 list, #66 in FY2022, #92 in FY2024 and not on the FY2025 list; down 30 since FY2022.
97	Dust Busters Plus LLC Top agencies USDA (Department of Agriculture)	$4,625,742	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 23 since FY2022.
98	Kit Helicopter Operations LLC Top agencies USDA (Department of Agriculture)	$4,580,323	0.2%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2024 and #42 in FY2025; up 101 since FY2022.
99	High Sierra Tree Company Inc. Top agencies USDA (Department of Agriculture)	$4,566,400	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 47 since FY2022.
100	R & R Contracting Inc. Top agencies USDA (Department of Agriculture)	$4,543,380	0.2%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2024 and #62 in FY2025; up 31 since FY2022.

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100 of 3,431 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	$1,308,096,073	Perimeter Solutions LP
F099 Other Natural Resources and Conservation Services	$399,231,433	Burnbot Inc.
F014 Tree Thinning Services	$122,243,060	Summitt Forests, Inc.
F016 Wildhorse/Burro Control Services	$86,392,002	Zimmetal and Welding, LLC
F020 Fisheries Resources Management Services	$68,347,336	The Gallup Organization
F018 Other Range/Forest Improvements Services (non-construction)	$58,900,735	Management & Engineering Technologies International Inc.
F006 Land Treatment Practices Services (plowing/clearing, etc.)	$55,004,195	Southwest Contracting & Associates LLC
F019 Other Wildlife Management Services	$24,871,827	The Texas A&M University System
F005 Forest Tree Planting Services	$19,521,926	Ponderosa Timberland, Inc.
F021 Site Preparation	$18,202,844	Leisnoi Diversified Services, LLC
F001 Aerial Fertilization/Spraying Services	$15,758,541	Dynamic Aviation Group, Inc.
F015 Well Drilling/Exploratory Services	$8,053,747	Asrc Consulting & Environmental Services LLC
F008 Recreation Site Maintenance Services (non-construction)	$7,656,716	Four Peaks Environmental Science & Data Solutions LLC
F010 Seedling Production/Transplanting Services	$6,874,863	Red Bison Services, LLC
F004 Forest/Range Fire Rehabilitation Services (non-construction)	$6,725,871	Summitt Forests, Inc.
F009 Seed Collection/Production Services	$4,425,289	Upper Colorado Environmental Plant Center

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 $2.33 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 2023 ran Oct 1, 2022 – Sep 30, 2023. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2022. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2022 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC F0 contractors in FY2023?

1. Perimeter Solutions LP ($65.1M), 2. Tenax Aerospace Holdings LLC ($54M), 3. J W Bamford Inc ($36.6M), 4. Burnbot Inc. ($30.5M), 5. Billings Flying Service LLC ($27.9M), 6. Summitt Forests, Inc. ($27.4M), 7. 10 Tanker Air Carrier, LLC ($27.4M), 8. Siller Helicopters, LLC ($25.7M), 9. Croman Corp ($25M), 10. Helicopter Transport Services, LLC ($23.8M).

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