Company lists · Data refreshed September 2026

Top 25 Underground mining contractors based in the United States

Name: Underground mining contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 312 companies tracked

RevenueBase identified 312 underground mining contractors headquartered in the United States as of September 2026 and tracks 10,409 professional contacts across them, including 2,208 with verified work emails. Elko is the largest hub.

This list covers underground mining contractors headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

312Companies

10,409Contacts tracked

2,208Verified emails

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The 25 largest underground mining contractors based in the United States

Ranked by team size

Top 25 of 312 underground mining contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to underground mining contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Boart Longyear	Indirect evidence	West Valley City, UT, United StatesHQ checked Sep 19, 2026	5,001-10,000	3,285 contacts →
	Indirect evidence “Established in 1890, Boart Longyear is the world’s leading innovative provider of drilling services, manufacturer of productivity-driven drilling equipment and performance…” Source: RevenueBase Database · checked Sep 19, 2026
2	Bucyrus International	Strong evidence	Peoria, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	739 contacts →
	Strong evidence “In 2011, Caterpillar purchased Bucyrus International, Inc, a leading manufacturer of surface and underground mining equipment with over 125 years of experience, entrepreneurship…” Source: RevenueBase Database · checked Sep 19, 2026
3	Jennmar	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	602 contacts →
	Partial evidence “JENNMAR \| Delivering Worldwide Solutions Jennmar is a global company leading the way in ground control technology for the mining, tunneling, civil, and infrastructure industries.” Source: RevenueBase Database · checked Sep 19, 2026
4	GMS Mine Repair & Maintenance	Partial evidence	Mountain Lake Park, MD, United StatesHQ checked Sep 19, 2026	1,001-5,000	462 contacts →
	Partial evidence “GMS Mine Repair & Maintenance is the North American leader in underground and surface mine contracting, maintenance and services.” Source: RevenueBase Database · checked Sep 19, 2026
5	Frontier-Kemper Constructors, INC	Indirect evidence	Sylmar, CA, United StatesHQ checked Sep 19, 2026	201-500	273 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
6	Robbins	Partial evidence	Solon, OH, United StatesHQ checked Sep 19, 2026	501-1,000	264 contacts →
	Partial evidence “With 70 years of innovation and experience, Robbins is the world’s foremost developer and manufacturer of advanced, underground construction machinery.” Source: RevenueBase Database · checked Sep 19, 2026
7	Turner Mining Group	Partial evidence	Bloomington, IN, United StatesHQ checked Sep 19, 2026	201-500	196 contacts →
	Partial evidence “Turner Mining Group is a full-service provider to the mining sector with operations throughout the United States.” Source: RevenueBase Database · checked Sep 19, 2026
8	Small Mine Development, LLC	Partial evidence	Boise, ID, United StatesHQ checked Sep 19, 2026	201-500	179 contacts →
	Partial evidence “Small Mine Development builds and operates America’s underground mines.” Source: RevenueBase Database · checked Sep 19, 2026
9	National EWP	Partial evidence	Elko, NV, United StatesHQ checked Sep 19, 2026	201-500	146 contacts →
	Partial evidence “National provides mining companies primarily working in the Western United States with the safest, most competitive drilling services in the industry.” Source: RevenueBase Database · checked Sep 19, 2026
10	Getman Corporation	Strong evidence	Bangor, MI, United StatesHQ checked Sep 19, 2026	51-200	130 contacts →
	Strong evidence “Getman Corporation delivers underground mining solutions focused on safety, reliability, and maximizing equipment uptime.” Source: RevenueBase Database · checked Sep 19, 2026
11	Redpath USA Corporation	Strong evidence	Sparks, NV, United StatesHQ checked Sep 19, 2026	201-500	87 contacts →
	Strong evidence “Redpath USA Corporation is a full-service underground mining contractor.” Source: RevenueBase Database · checked Sep 19, 2026
12	Shaft Drillers International	Indirect evidence	Mt Morris, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	78 contacts →
	Indirect evidence “Shaft Drillers International LLC Headquartered in Mt.” Source: RevenueBase Database · checked Sep 19, 2026
13	Timberline Drilling, INC	Indirect evidence	Elko, NV, United StatesHQ checked Sep 19, 2026	201-500	77 contacts →
	Indirect evidence “With more than 7.4 million feet drilled in the past seven years, Timberline Drilling has a proven track records in safety and production.” Source: RevenueBase Database · checked Sep 19, 2026
14	MES Mining	Partial evidence	Sandy, UT, United StatesHQ checked Sep 19, 2026	11-50	77 contacts →
	Partial evidence “Mining & Environmental Services LLC provides specialized technical expertise, at a high level of excellence, to support our Clients throughout the full process cycle of…” Source: RevenueBase Database · checked Sep 19, 2026
15	United Central Industrial Supply Company, L.L.C	Indirect evidence	Bristol, TN, United StatesHQ checked Sep 19, 2026	201-500	72 contacts →
	Indirect evidence “Through hard work and dedication since 1974, United Central Industrial Supply has been providing mine operators throughout North America with the highest quality supplies…” Source: RevenueBase Database · checked Sep 19, 2026
16	J.H. Fletcher & CO	Strong evidence	Huntington, WV, United StatesHQ checked Sep 19, 2026	51-200	68 contacts →
	Strong evidence “Since 1937, Fletcher has been engineering and manufacturing custom solutions for underground mining.” Source: RevenueBase Database · checked Sep 19, 2026
17	John T. Boyd Company	Partial evidence	Canonsburg, PA, United StatesHQ checked Sep 19, 2026	51-200	65 contacts →
	Partial evidence “Since 1943, BOYD mining consultants have provided advisory services to a diverse mix of domestic and international clientele: mining companies, investors, financial institutions…” Source: RevenueBase Database · checked Sep 19, 2026
18	Wesco Western Explosives Systems Company	Partial evidence	Salt Lake City, United StatesHQ checked Sep 19, 2026	51-200	61 contacts →
	Partial evidence “WESCO provides rock drilling and blasting solutions to businesses in the construction and mining industries throughout the western United States.” Source: RevenueBase Database · checked Sep 19, 2026
19	Northern Star Pogo Mine	Strong evidence	Fairbanks, AK, United StatesHQ checked Sep 19, 2026	1,001-5,000	58 contacts →
	Strong evidence “The Pogo Mine is an underground gold mining operation located near Delta Junction, Alaska, and is owned and operated by Northern Star Resources Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
20	Pattison Company, LLC	Partial evidence	Garnavillo, IA, United StatesHQ checked Sep 19, 2026	51-200	58 contacts →
	Partial evidence “Pattison Company, LLC is a Mining company located at 23656 Great River Rd, Garnavillo, IA, 52049, United States.” Source: RevenueBase Database · checked Sep 19, 2026
21	Quick Supply Co. Explosives Services	Partial evidence	Des Moines, IA, United StatesHQ checked Sep 19, 2026	201-500	55 contacts →
	Partial evidence “Quick Supply Co.'s explosives services division utilizes the latest products, services and technology for mining, quarrying, and construction market segments.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ric-Man Construction, INC	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 19, 2026	51-200	55 contacts →
	Partial evidence “With over 60 years of pioneering excellence in underground construction, Ric-Man has established itself as a leader in the industry, renowned for our innovative approaches and…” Source: RevenueBase Database · checked Sep 19, 2026
23	Premier Underground	Partial evidence	Glendale, AZ, United StatesHQ checked Sep 19, 2026	51-200	53 contacts →
	Partial evidence “Established in 2004, Premier Underground Construction LLC has been delivering high-quality services in the construction industry.” Source: RevenueBase Database · checked Sep 19, 2026
24	Turner Contracting, INC	Partial evidence	Bedford, IN, United StatesHQ checked Sep 19, 2026	201-500	51 contacts →
	Partial evidence “Decades Strong Industry Leader in Mining & Mass Excavation” Source: RevenueBase Database · checked Sep 19, 2026
25	Oftedal Construction, INC	Indirect evidence	Miles City, MT, United StatesHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: underground mining contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names underground mining contractors.
Partial evidence: Its own public description names part of underground mining contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underground mining contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 312 underground mining contractors based in the United States

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Underground mining contractors based in the United States at a glance

As of Sep 19, 2026

21.2%Verified-email coverage

33.4Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Elko

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

123

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 312 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among underground mining contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “underground mining contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names underground mining contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among underground mining contractors, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,208 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names underground mining contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many underground mining contractors are there based in the United States?

RevenueBase identified 312 underground mining contractors headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Boart Longyear, headquartered in West Valley City, tops this list with the largest team on record.

Which city has the most underground mining contractors?

Elko leads with 9 headquartered companies, followed by Salt Lake City (5) and Boise (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,208 verified decision-maker contacts tracked across these 312 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.