Top 28 Contractors in PSC 3820: Mining, Rock Drilling, Earth Boring, and Related Equipment, Jul 2025–Jun 2026

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

The top 10 won 87% of PSC 3820 contract dollars from July 2025 through June 2026

Ranking facts

Contract obligations
$1,380,561 Net of deobligations, by contracts coded PSC 3820
Contractors
28 Parent companies with an obligation
Largest contractor
Rimrock Ventures, LLC $257 thousand, 18.6% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 28 rows as CSV

Full ranking

Rank Contractor Net obligations Share Trend
1 $257,075
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
2 $240,000
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
3 $217,279
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
4 $184,200
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
5 $90,526
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
6 $66,720
Rank history: #8 in FY2021 and not on the FY2022–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
7 $40,481
Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list and #44 in FY2024; up 15 since Jul 2024–Jun 2025.
8 $40,209
Rank history: not on the FY2021 list, #18 in FY2022, not on the FY2023 list and #19 in FY2024; new, not ranked in Jul 2024–Jun 2025.
9 $35,407
Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 11 since Jul 2024–Jun 2025.
10 $33,942
Rank history: #23 in FY2021, #8 in FY2022, #10 in FY2023 and #2 in FY2024; down 1 since Jul 2024–Jun 2025.
11 $26,430
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
12 $25,983
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
13
Micro-G Lacoste Inc
$22,823
Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 1 since Jul 2024–Jun 2025.
14 $14,668
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
15 $14,274
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
16 $12,689
Rank history: #29 in FY2021, #42 in FY2022, not on the FY2023 list and #35 in FY2024; down 1 since Jul 2024–Jun 2025.
17 $12,543
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
18 $9,851
Rank history: not on the FY2021–FY2024 lists; up 9 since Jul 2024–Jun 2025.
19 $8,699
Rank history: #21 in FY2021, #32 in FY2022, #31 in FY2023 and #21 in FY2024; unchanged since Jul 2024–Jun 2025.
20 $7,281
Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 4 since Jul 2024–Jun 2025.
21 $6,908
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
22 $6,750
Rank history: #42 in FY2021, #48 in FY2022 and not on the FY2023–FY2024 lists; up 4 since Jul 2024–Jun 2025.
23 $5,305
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
24
AEY Inc
$2,388
Rank history: not on the FY2021–FY2022 lists, #25 in FY2023 and not on the FY2024 list; new, not ranked in Jul 2024–Jun 2025.
25 $1,920
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
26
Allied Tools Inc
$248
Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #40 in FY2024; new, not ranked in Jul 2024–Jun 2025.
27 $172
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
28 $84
Rank history: not on the FY2021–FY2024 lists; new, not ranked in Jul 2024–Jun 2025.
Show all 28

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 $1.38 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 PSC 3820 contractors in Jul 2025–Jun 2026?

1. Rimrock Ventures, LLC ($257K), 2. Robert S Murray ($240K), 3. Heesong Geotek Co., Ltd. ($217K), 4. Golden Lines Contracting Company ($184K), 5. May Tool Inc. ($90.5K), 6. Dejana Truck & Utility Equipment Co, LLC ($66.7K), 7. PCX Inc. ($40.5K), 8. Kincheloe & Sons, Inc. ($40.2K), 9. Larkos Packing and Distribution Inc. ($35.4K), 10. Central Mine Equipment Company ($33.9K).

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