Top 100 Contractors in NAICS 21: Mining, Quarrying, and Oil and Gas Extraction, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 21: Mining, Quarrying, and Oil and Gas Extraction, Jul 2025–Jun 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 59% of NAICS 21 contract dollars from July 2025 through June 2026

Contract obligations: $245,320,731 Net of deobligations, by contracts coded NAICS 21 or a code under it
Contractors: 365 Parent companies with an obligation
Largest contractor: Usibelli Coal Mine, Inc. $41.7 million, 16.0% of obligations
Data as of: Oct 16, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Usibelli Coal Mine, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$41,655,882	16.0%	Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Promethean Operating I LLC Top agencies DOI (Department of the Interior)	$30,121,961	11.6%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #2 in FY2025; up 16 since Jul 2024–Jun 2025.
3	WGL Holdings Inc. Through WGL Energy Services, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOJ (Department of Justice)	$21,933,407	8.4%	Rank history: #25 in FY2021, not on the FY2022 list, #3 in FY2023, #11 in FY2024 and #5 in FY2025; up 4 since Jul 2024–Jun 2025.
4	FPA Pacific Corp. Top agencies USAF (Department of the Air Force)	$18,593,965	7.1%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; new, not ranked in Jul 2024–Jun 2025.
5	Arctic Slope Regional Corporation Through Asrc Consulting & Environmental Services, LLC Top agencies DOI (Department of the Interior)	$9,505,301	3.6%	Rank history: #1 in FY2021, #8 in FY2022, not on the FY2023–FY2024 lists and #3 in FY2025; up 150 since Jul 2024–Jun 2025.
6	Tiger Natural Gas Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) VA (Department of Veterans Affairs)	$8,030,437	3.1%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #4 in FY2025; down 4 since Jul 2024–Jun 2025.
7	Olgoonik Oilfield Services LLC Top agencies DOI (Department of the Interior)	$7,568,546	2.9%	Rank history: not on the FY2021 list, #4 in FY2022, #31 in FY2023, #2 in FY2024 and #35 in FY2025; up 16 since Jul 2024–Jun 2025.
8	Sage Energy Trading LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$5,422,805	2.1%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #21 in FY2025; up 29 since Jul 2024–Jun 2025.
9	Centerpoint Energy Resources Corp. Through Nextera Energy Services Gas, LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$5,255,798	2.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
10	NRG Business Marketing LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$5,183,872	2.0%	Rank history: not on the FY2021 list, #47 in FY2022, #10 in FY2023, #17 in FY2024 and #15 in FY2025; unchanged since Jul 2024–Jun 2025.
11	Central Stone Co Top agencies Army (Department of the Army)	$4,902,456	1.9%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	DBR Investments Inc. Top agencies DOI (Department of the Interior)	$4,645,250	1.8%	Rank history: not on the FY2021 list, #54 in FY2022, not on the FY2023–FY2024 lists and #11 in FY2025; new, not ranked in Jul 2024–Jun 2025.
13	Ho-Chunk, Inc. Through Flatwater Professional Services Company Top agencies Army (Department of the Army)	$4,383,995	1.7%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #14 in FY2025; up 1 since Jul 2024–Jun 2025.
14	PCI Support Services LLC Top agencies Navy (Department of the Navy)	$3,614,750	1.4%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023, #6 in FY2024 and #18 in FY2025; down 9 since Jul 2024–Jun 2025.
15	Nextera Energy Services Gas, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$3,538,942	1.4%	Rank history: #45 in FY2021, not on the FY2022–FY2023 lists, #34 in FY2024 and #8 in FY2025; down 7 since Jul 2024–Jun 2025.
16	Yabudoken Co. Top agencies Navy (Department of the Navy)	$3,184,137	1.2%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 15 since Jul 2024–Jun 2025.
17	Crowley Holdings LLC Top agencies DOI (Department of the Interior) Army (Department of the Army) USAF (Department of the Air Force)	$3,152,436	1.2%	Rank history: #8 in FY2021, #7 in FY2022, not on the FY2023 list, #7 in FY2024 and #7 in FY2025; down 14 since Jul 2024–Jun 2025.
18	American Classic Construction Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) USDA (Department of Agriculture)	$3,112,937	1.2%	Rank history: #13 in FY2021, #18 in FY2022, #17 in FY2023, #8 in FY2024 and #10 in FY2025; down 12 since Jul 2024–Jun 2025.
19	Pine Bluff Sand and Gravel Company Top agencies Army (Department of the Army)	$3,093,541	1.2%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	Olgoonik Construction Services LLC Top agencies DOI (Department of the Interior)	$2,457,448	0.9%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #12 in FY2025; unchanged since Jul 2024–Jun 2025.
21	Giving Tree Capital, LLC Top agencies DOI (Department of the Interior) Army (Department of the Army) USDA (Department of Agriculture)	$2,339,412	0.9%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #25 in FY2025; unchanged since Jul 2024–Jun 2025.
22	Specialized Government Sourcing, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) DLA (Defense Logistics Agency)	$2,099,117	0.8%	Rank history: #72 in FY2021, not on the FY2022 list, #12 in FY2023, #12 in FY2024 and #20 in FY2025; down 3 since Jul 2024–Jun 2025.
23	Chet Morrison Contractors LLC Top agencies DOI (Department of the Interior)	$2,088,114	0.8%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #27 in FY2025; down 14 since Jul 2024–Jun 2025.
24	Ares Strategic Mining, Inc. Top agencies DLA (Defense Logistics Agency)	$2,028,400	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Jordan Modern Oil & Fuel Services Ltd. Co. Top agencies DOS (Department of State)	$1,924,218	0.7%	Rank history: not on the FY2021 list, #22 in FY2022, #16 in FY2023, #20 in FY2024 and #19 in FY2025; down 10 since Jul 2024–Jun 2025.
26	Transparent Energy LLC Top agencies VA (Department of Veterans Affairs)	$1,855,935	0.7%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
27	CF Padilla LLC Top agencies DOI (Department of the Interior)	$1,843,494	0.7%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #26 in FY2025; new, not ranked in Jul 2024–Jun 2025.
28	Brice Solutions, LLC Top agencies DOI (Department of the Interior)	$1,490,562	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
29	Skagit Aggregates LLC Top agencies Army (Department of the Army)	$1,226,919	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
30	Willard Quarries, Inc. Top agencies Army (Department of the Army)	$1,147,817	0.4%	Rank history: #87 in FY2021, #74 in FY2022, #46 in FY2023, #27 in FY2024 and #29 in FY2025; down 5 since Jul 2024–Jun 2025.
31	Next Generation Logistics, LLC Top agencies Army (Department of the Army)	$1,102,090	0.4%	Rank history: #51 in FY2021, not on the FY2022 list, #36 in FY2023, #38 in FY2024 and #24 in FY2025; up 7 since Jul 2024–Jun 2025.
32	Todd Marchant Top agencies DOI (Department of the Interior)	$1,065,968	0.4%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and not on the FY2025 list; up 3 since Jul 2024–Jun 2025.
33	Grarok LLC Top agencies Army (Department of the Army)	$982,867	0.4%	Rank history: #48 in FY2021, #51 in FY2022, #42 in FY2023, #32 in FY2024 and #40 in FY2025; up 16 since Jul 2024–Jun 2025.
34	Boardwalk Continuum Marketing, LLC Top agencies VA (Department of Veterans Affairs)	$977,176	0.4%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #22 in FY2025; new, not ranked in Jul 2024–Jun 2025.
35	Materion Corporation Through Materion Brush Inc. Top agencies NASA (National Aeronautics and Space Administration)	$967,685	0.4%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and not on the FY2025 list; down 22 since Jul 2024–Jun 2025.
36	Enspire Energy, LLC Top agencies DOJ (Department of Justice)	$903,674	0.3%	Rank history: #22 in FY2021, #30 in FY2022, #28 in FY2023, #40 in FY2024 and #43 in FY2025; up 106 since Jul 2024–Jun 2025.
37	Nextera Energy Services Midwest, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$870,616	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38	Green Dream International LLC Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) Navy (Department of the Navy)	$858,036	0.3%	Rank history: #11 in FY2021, #38 in FY2022, #51 in FY2023, not on the FY2024 list and #33 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	Bayer Construction Company, Inc. Top agencies Army (Department of the Army)	$844,667	0.3%	Rank history: #64 in FY2021, #50 in FY2022, #40 in FY2023, #37 in FY2024 and #34 in FY2025; unchanged since Jul 2024–Jun 2025.
40	Interconn Resources LLC Top agencies NASA (National Aeronautics and Space Administration)	$807,542	0.3%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; down 7 since Jul 2024–Jun 2025.
41	Rogers Brothers Land Clearing LLC Top agencies DOI (Department of the Interior)	$733,160	0.3%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 78 since Jul 2024–Jun 2025.
42	E2 Contracting, Inc. Top agencies DOI (Department of the Interior)	$705,910	0.3%	Rank history: #62 in FY2021, #73 in FY2022, not on the FY2023 list, #35 in FY2024 and #37 in FY2025; new, not ranked in Jul 2024–Jun 2025.
43	Mooweep LLC Top agencies DOI (Department of the Interior)	$668,642	0.3%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 163 since Jul 2024–Jun 2025.
44	Parliament LLC Top agencies DOI (Department of the Interior)	$627,609	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
45	CCI Prime Contractors, LLC Top agencies DHS (Department of Homeland Security)	$559,144	0.2%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
46	MDU Resources Group, Inc. 2 awardees, including Knife River Corporation - North Central and Knife River Corporation - Northwest Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$535,306	0.2%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Jul 2024–Jun 2025.
47	Astrea Technical Services LLC Top agencies USAF (Department of the Air Force)	$533,400	0.2%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Jul 2024–Jun 2025.
48	High Desert Pipeline, Inc. Top agencies Army (Department of the Army)	$502,523	0.2%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; down 12 since Jul 2024–Jun 2025.
49	Cobb Electric Membership Corporation Through Gas South, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$492,823	0.2%	Rank history: #86 in FY2021, #26 in FY2022, #37 in FY2023, not on the FY2024 list and #50 in FY2025; up 24 since Jul 2024–Jun 2025.
50	Tarpan Construction, LLC Top agencies Army (Department of the Army)	$480,088	0.2%	Rank history: #52 in FY2021, #9 in FY2022, #5 in FY2023, #13 in FY2024 and #32 in FY2025; down 39 since Jul 2024–Jun 2025.
51	Ecology Mir Group LLC Top agencies DOI (Department of the Interior) VA (Department of Veterans Affairs)	$467,726	0.2%	Rank history: #30 in FY2021, #84 in FY2022, #43 in FY2023, not on the FY2024 list and #51 in FY2025; up 81 since Jul 2024–Jun 2025.
52	Golat & Engel Custom Gravel Crushing Inc. Top agencies USDA (Department of Agriculture)	$456,788	0.2%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023, #79 in FY2024 and #79 in FY2025; new, not ranked in Jul 2024–Jun 2025.
53	Hurst-Rosche, Inc. Top agencies Army (Department of the Army)	$453,871	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #35 in FY2023, #71 in FY2024 and #94 in FY2025; up 10 since Jul 2024–Jun 2025.
54	Sprague Operating Resources LLC Top agencies Treasury (Department of the Treasury)	$417,054	0.2%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; down 24 since Jul 2024–Jun 2025.
55	Griffin's Propane, Inc. Top agencies HHS (Department of Health and Human Services)	$410,000	0.2%	Rank history: not on the FY2021 list, #56 in FY2022, #57 in FY2023, #54 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
56	Al Muamroon Trading Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$406,893	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
57	J Brothers Trucking & Excavation, LLC Top agencies USAF (Department of the Air Force)	$395,420	0.2%	Rank history: #99 in FY2021, not on the FY2022–FY2024 lists and #54 in FY2025; new, not ranked in Jul 2024–Jun 2025.
58	Anson Excavating & Pipe, Inc. Top agencies USDA (Department of Agriculture)	$389,300	0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Jul 2024–Jun 2025.
59	Pitlik & Wick, Inc. Top agencies USDA (Department of Agriculture)	$379,174	0.1%	Rank history: #82 in FY2021, #61 in FY2022, #83 in FY2023, #88 in FY2024 and not on the FY2025 list; up 106 since Jul 2024–Jun 2025.
60	Tennessee Marble Company Top agencies National Gallery of Art	$364,907	0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 1 since Jul 2024–Jun 2025.
61	Iron Mountain Quarry LLC Top agencies Army (Department of the Army)	$362,851	0.1%	Rank history: not on the FY2021 list, #66 in FY2022, #45 in FY2023, #60 in FY2024 and not on the FY2025 list; down 19 since Jul 2024–Jun 2025.
62	Colorado River Indian Tribes Top agencies DOI (Department of the Interior)	$346,724	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	GPC Consolidated Reporting Top agencies USDA (Department of Agriculture)	$345,101	0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 76 since Jul 2024–Jun 2025.
64	Ipgs Corporation Pte. Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$336,364	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Rimrock Ventures, LLC Top agencies DOI (Department of the Interior)	$336,311	0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 55 since Jul 2024–Jun 2025.
66	JHL Constructors LLC Top agencies USDA (Department of Agriculture)	$326,348	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Jul 2024–Jun 2025.
67	A2D Technologies, Inc. Top agencies DOI (Department of the Interior)	$325,068	0.1%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #64 in FY2025; down 13 since Jul 2024–Jun 2025.
68	Kramme Construction, LLC Top agencies USDA (Department of Agriculture)	$323,600	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
69	Ninja De-Icer, LLC Top agencies Army (Department of the Army)	$318,960	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Jul 2024–Jun 2025.
70	Norcatec LLC Top agencies DLA (Defense Logistics Agency)	$314,382	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
71	Kclean KG Top agencies Army (Department of the Army)	$311,220	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
72	Schuck Development Corp Top agencies USDA (Department of Agriculture)	$308,250	0.1%	Rank history: not on the FY2021 list, #42 in FY2022, not on the FY2023–FY2024 lists and #67 in FY2025; new, not ranked in Jul 2024–Jun 2025.
73	Lineport Excavating, LLC Top agencies Army (Department of the Army)	$285,861	0.1%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, not on the FY2024 list and #45 in FY2025; down 30 since Jul 2024–Jun 2025.
74	Suburban Propane Partners, L.P Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$273,392	0.1%	Rank history: #60 in FY2021, #34 in FY2022, #63 in FY2023, not on the FY2024 list and #59 in FY2025; down 29 since Jul 2024–Jun 2025.
75	Tecship SDN BHD Top agencies Army (Department of the Army)	$266,920	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Rocky Mountain Aggregate & Construction, LLC Top agencies USDA (Department of Agriculture)	$249,760	0.1%	Rank history: #75 in FY2021, not on the FY2022 list, #74 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77	Robert S Murray Top agencies DOI (Department of the Interior)	$240,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
78	Gerou Excavating Inc. Top agencies USDA (Department of Agriculture)	$233,480	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
79	Van Sloten Enterprises Inc. Top agencies Army (Department of the Army)	$230,298	0.1%	Rank history: not on the FY2021–FY2025 lists; up 28 since Jul 2024–Jun 2025.
80	U.s.a. Fanter Corporation, Ltd. Top agencies USAF (Department of the Air Force)	$228,242	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
81	Allied Imperium Global, Inc. Top agencies DOI (Department of the Interior)	$226,406	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	Wood's Crushing and Hauling, Inc. Top agencies Army (Department of the Army)	$220,680	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
83	C & C Metals Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$216,865	0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; down 7 since Jul 2024–Jun 2025.
84	Amrize ACM PNW Inc. Top agencies Army (Department of the Army)	$216,742	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
85	New Enterprise Stone & Lime Co Inc. Top agencies Army (Department of the Army)	$210,811	0.1%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023, #31 in FY2024 and #77 in FY2025; up 50 since Jul 2024–Jun 2025.
86	Pandora Industries, LLC Top agencies Army (Department of the Army)	$209,155	0.1%	Rank history: not on the FY2021–FY2025 lists; up 107 since Jul 2024–Jun 2025.
87	Chitina Support Services, LLC Top agencies USAF (Department of the Air Force)	$208,121	0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; down 28 since Jul 2024–Jun 2025.
88	Snow & Ice Salt & Chemicals Unlimited, LLC Top agencies Army (Department of the Army)	$203,936	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; down 1 since Jul 2024–Jun 2025.
89	Structural Hardware and Supply, Inc. Top agencies Army (Department of the Army)	$203,120	0.1%	Rank history: #58 in FY2021, not on the FY2022 list, #39 in FY2023, #58 in FY2024 and #85 in FY2025; down 38 since Jul 2024–Jun 2025.
90	J.h.j. Construction of Nwa, LLC Top agencies DOI (Department of the Interior)	$201,760	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
91	Valar Ltd Top agencies Army (Department of the Army)	$201,144	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 18 since Jul 2024–Jun 2025.
92	Richard J. Mertens, Inc. Top agencies Army (Department of the Army)	$199,600	0.1%	Rank history: #21 in FY2021, not on the FY2022–FY2023 lists, #50 in FY2024 and #39 in FY2025; down 63 since Jul 2024–Jun 2025.
93	Dennis Kirby Top agencies USDA (Department of Agriculture)	$194,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	F.s. Rod, Inc. Top agencies VA (Department of Veterans Affairs)	$187,147	0.1%	Rank history: not on the FY2021–FY2025 lists; up 22 since Jul 2024–Jun 2025.
95	Acty Co., Ltd. Top agencies Navy (Department of the Navy)	$186,644	0.1%	Rank history: #79 in FY2021, #78 in FY2022, #81 in FY2023, #90 in FY2024 and #87 in FY2025; new, not ranked in Jul 2024–Jun 2025.
96	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$181,963	0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 68 since Jul 2024–Jun 2025.
97	Timothy E. Patrick Top agencies Army (Department of the Army)	$181,184	0.1%	Rank history: #83 in FY2021 and not on the FY2022–FY2025 lists; up 185 since Jul 2024–Jun 2025.
98	Colaska Inc 3 awardees, including Branscome Operating, LLC Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$177,037	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; up 218 since Jul 2024–Jun 2025.
99	E & J Express Logistics LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$171,391	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Thompson Contracting, Inc. Top agencies Army (Department of the Army)	$166,938	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.

Show 75 more

100 of 365 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 21

Code	Net obligations	Largest contractor
212 Mining (except Oil and Gas)	$121,454,500	Usibelli Coal Mine, Inc.
213 Support Activities for Mining	$62,368,270	Promethean Operating I LLC
211 Oil and Gas Extraction	$61,497,961	WGL Holdings Inc.

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 $261 million obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 21 contractors in Jul 2025–Jun 2026?

1. Usibelli Coal Mine, Inc. ($41.7M), 2. Promethean Operating I LLC ($30.1M), 3. WGL Holdings Inc. ($21.9M), 4. FPA Pacific Corp. ($18.6M), 5. Arctic Slope Regional Corporation ($9.51M), 6. Tiger Natural Gas Inc. ($8.03M), 7. Olgoonik Oilfield Services LLC ($7.57M), 8. Sage Energy Trading LLC ($5.42M), 9. Centerpoint Energy Resources Corp. ($5.26M), 10. NRG Business Marketing LLC ($5.18M).

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