Top 27 Contractors in NAICS 33313: Mining and Oil and Gas Field Machinery Manufacturing, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	S.l. Ross Environmental Research Limited Top agencies DOI (Department of the Interior)	$1,374,044	42.8%	Rank history: not on the FY2021–FY2024 lists; new.
2	Prymol Business Management Inc. Top agencies USAF (Department of the Air Force)	$405,547	12.6%	Rank history: not on the FY2021–FY2024 lists; new.
3	Hole Products LLC Top agencies DOI (Department of the Interior)	$128,307	4.0%	Rank history: not on the FY2021–FY2024 lists; new.
4	Ramos Oil Co., Inc. Top agencies DHS (Department of Homeland Security)	$122,818	3.8%	Rank history: not on the FY2021–FY2024 lists; new.
5	Century Geophysical, LLC Top agencies DOI (Department of the Interior)	$105,780	3.3%	Rank history: not on the FY2021 list, #19 in FY2022 and not on the FY2023–FY2024 lists; returned.
6	American Material Handling, Inc. Top agencies DOS (Department of State)	$97,656	3.0%	Rank history: not on the FY2021–FY2024 lists; new.
7	Oil States Industries, Inc. Top agencies Navy (Department of the Navy)	$90,839	2.8%	Rank history: not on the FY2021–FY2024 lists; new.
8	Eleet Cryogenics Inc. Top agencies Navy (Department of the Navy)	$83,585	2.6%	Rank history: not on the FY2021–FY2024 lists; new.
9	FSR Consulting LLC Top agencies Army (Department of the Army)	$77,597	2.4%	Rank history: #33 in FY2021 and not on the FY2022–FY2024 lists; returned.
10	Central Mine Equipment Company Top agencies Army (Department of the Army)	$73,743	2.3%	Rank history: #19 in FY2021, #4 in FY2022, #3 in FY2023 and #1 in FY2024; down 9 since FY2024.
11	Modern Machinery Co., Inc. Top agencies DOI (Department of the Interior)	$53,877	1.7%	Rank history: not on the FY2021–FY2024 lists; new.
12	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$32,631	1.0%	Rank history: #27 in FY2021, not on the FY2022–FY2023 lists and #33 in FY2024; up 21 since FY2024.
13	Separator Spares & Equipment LLC Top agencies Commerce (Department of Commerce)	$21,911	0.7%	Rank history: #23 in FY2021, #6 in FY2022 and not on the FY2023–FY2024 lists; returned.
14	Aantilia LLC Top agencies Navy (Department of the Navy)	$19,154	0.6%	Rank history: #20 in FY2021, #11 in FY2022, #15 in FY2023 and #10 in FY2024; down 4 since FY2024.
15	Rubiconsulting, LLC Top agencies DLA (Defense Logistics Agency)	$16,185	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
16	Yellow Tag Auctions, LLC Top agencies USDA (Department of Agriculture)	$15,000	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
17	Tidewater, Inc. Top agencies DOS (Department of State)	$12,394	0.4%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and not on the FY2024 list; returned.
18	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$10,838	0.3%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; up 16 since FY2024.
19	Torqhoist, Inc. Top agencies DLA (Defense Logistics Agency)	$8,952	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
20	PCX Inc. Top agencies DLA (Defense Logistics Agency)	$6,460	0.2%	Rank history: not on the FY2021 list, #28 in FY2022 and not on the FY2023–FY2024 lists; returned.
21	RDO Agriculture Equipment Co Top agencies DLA (Defense Logistics Agency)	$4,427	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
22	Midway Industrial Supply Inc. Top agencies DLA (Defense Logistics Agency)	$3,027	0.1%	Rank history: #46 in FY2021, #36 in FY2022 and not on the FY2023–FY2024 lists; returned.
23	Magnolia Gas Inc Top agencies Navy (Department of the Navy)	$3,005	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
24	American Power LLC Top agencies DLA (Defense Logistics Agency)	$1,920	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
25	Wrigglesworth Enterprises Inc. Top agencies DOI (Department of the Interior)	$1,052	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
26	Cenmed Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$699	<0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and not on the FY2024 list; returned.
27	Safeware Inc. Top agencies DLA (Defense Logistics Agency)	$552	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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 $3.21 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.
• Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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