# Mining companies headquartered in the United States

Tamtam tracks 210 Mining companies headquartered in the United States. This list ranks the 50 largest by number of employees on LinkedIn, led by Alcoa, AngloGold Ashanti and Newmont Corporation. Their median headcount is 1,146. Half of them were founded in 1935 or later. The most common headquarters are Pittsburgh (4), Cleveland (3) and Denver (3).

This selection of mining companies in the United States comprises mostly large, established firms. Alcoa, founded in 1888, is a global leader in bauxite, alumina, and aluminum products. Freeport-McMoRan, established in 1834, is an international mining company with significant reserves of copper, gold, and molybdenum. The Mosaic Company, founded in 2004, specializes in crop nutrients, while Komatsu Mining, founded in 2017, develops technologies and equipment for various markets.

The companies listed are diverse in their specific offerings within the mining sector. Many, such as AngloGold Ashanti and Newmont Corporation, focus on precious metals like gold. Others, like Vulcan Materials Company and Martin Marietta, are significant producers of construction materials. A notable pattern is the presence of several companies headquartered in Denver, Colorado, including AngloGold Ashanti, Newmont Corporation, and Goldcorp.

🇺🇸 United States · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Alcoa](https://www.tamtam.ai/c/alcoa) (alcoa.com)<br>Global industry leader in bauxite, alumina, and aluminum products, focused on reinventing the aluminum industry for a sustainable future through innovation and best practices | Mining | 🇺🇸 Pittsburgh | 17,780 | 1888 |
| 2 | [AngloGold Ashanti](https://www.tamtam.ai/c/anglogold-ashanti) (anglogoldashanti.com)<br>global gold mining company with operations, projects, and exploration across multiple countries, focusing on value-creating mineral opportunities | Mining | 🇺🇸 Denver | 14,393 | 1998 |
| 3 | [Newmont Corporation](https://www.tamtam.ai/c/newmont-corporation) (newmont.com)<br>A leading producer of gold, copper, silver, zinc, and lead with assets in North America, South America, Australia, and Africa Industry leader in value creation and responsible practices | Mining | 🇺🇸 Denver | 12,597 | 1921 |
| 4 | [Freeport-McMoRan](https://www.tamtam.ai/c/freeport-mcmoran) (jobs.fcx.com)<br>International mining company with headquarters in Phoenix, Arizona, operating assets with significant reserves of copper, gold, and molybdenum worldwide Commitment to safety, environment, and local communities | Mining | 🇺🇸 Phoenix | 9,855 | 1834 |
| 5 | [Weir Minerals](https://www.tamtam.ai/c/weir-minerals) (global.weir)<br>The company provides engineered solutions to the mining industry, offering services from reducing downtime to increasing plant capacity and tailings management | Mining | 🇺🇸 Fort Worth | 8,746 | 1871 |
| 6 | [Komatsu Mining](https://www.tamtam.ai/c/komatsu-mining) (komatsu.com)<br>Development and supply of technologies, equipment, and services for construction, mining, industrial, forestry, and forklift markets worldwide. | Mining | 🇺🇸 Milwaukee | 5,339 | 2017 |
| 7 | [The Mosaic Company](https://www.tamtam.ai/c/the-mosaic-company) (mosaicco.com)<br>Global leader in crop nutrient industry, producing and delivering phosphate and potash on large scale Engaged in all phases of crop nutrition worldwide | Mining | 🇺🇸 Tampa | 4,952 | 2004 |
| 8 | [Vulcan Materials Company](https://www.tamtam.ai/c/vulcan-materials-company) (vulcanmaterials.com)<br>The company is a leading producer of construction materials, specializing in crushed stone, sand, gravel, asphalt, and ready-mixed concrete Operating in multiple states | Mining | 🇺🇸 Birmingham | 4,780 | 1957 |
| 9 | [Martin Marietta](https://www.tamtam.ai/c/martin-marietta) (martinmarietta.com)<br>A leading supplier of building materials, providing aggregates, cement, concrete, and asphalt products across North America and The Bahamas | Mining | 🇺🇸 Raleigh | 4,451 | 1994 |
| 10 | [Goldcorp](https://www.tamtam.ai/c/goldcorp) (newmont.com)<br>Leading global gold producer with diversified metals portfolio, operating in multiple continents, emphasizing safety, governance, and value creation. | Mining | 🇺🇸 Greenwood Village | 4,106 |  |
| 11 | [Boart Longyear](https://www.tamtam.ai/c/boart-longyear) (boartlongyear.com)<br>A global leader in drilling services, equipment manufacturing, technology development, and fostering diversity and inclusion, with operations in 26 countries | Mining | 🇺🇸 West Valley City | 3,818 | 1890 |
| 12 | [Peabody Energy](https://www.tamtam.ai/c/peabody-energy) (peabodyenergy.com)<br>Leading coal producer supplying essential materials for affordable energy generation and steel manufacturing with a strong focus on sustainability. | Mining | 🇺🇸 St. Louis | 3,106 | 1883 |
| 13 | [Nevada Gold Mines](https://www.tamtam.ai/c/nevada-gold-mines) (barrick.com)<br>A joint venture combining assets in Nevada to create the world's largest gold-producing complex, focused on operational improvements and cost savings | Mining | 🇺🇸 Elko | 2,907 | 2019 |
| 14 | [ESCO Group LLC](https://www.tamtam.ai/c/esco-group-llc) (global.weir)<br>Developer and manufacturer of engineered wear parts and replacement products for mining, construction, and industrial applications with global support. | Mining | 🇺🇸 Portland | 2,055 | 1913 |
| 15 | [Aura Minerals Inc](https://www.tamtam.ai/c/aura-minerals-inc) (auraminerals.com)<br>Finds, mines, and supplies gold, copper, and other essential minerals, operating across the Americas with a focus on people, environment, and ethics. | Mining | 🇺🇸 Miami | 2,023 |  |
| 16 | [Waupaca Foundry](https://www.tamtam.ai/c/waupaca-foundry) (waupacafoundry.com)<br>The company is a leading producer of high-quality iron castings, utilizing vertical green sand molding and generations of expertise for durable and innovative products | Mining | 🇺🇸 Waupaca | 1,534 | 1871 |
| 17 | [Coeur Mining, Inc.](https://www.tamtam.ai/c/coeur-mining-inc) (coeur.com)<br>Precious metals producer with mines in North America, focusing on responsible mining while prioritizing employee safety, environmental protection, and community engagement through teamwork and innovation | Mining | 🇺🇸 Chicago | 1,465 | 1928 |
| 18 | [MACA](https://www.tamtam.ai/c/maca) (maca.net.au)<br>Specialises in mining, crushing, civil construction, infrastructure, and mineral processing with over 20 years of experience in Australia and internationally. | Mining | 🇺🇸 Welshpool | 1,329 | 2002 |
| 19 | [SSR Mining Inc.](https://www.tamtam.ai/c/ssr-mining-inc) (ssrmining.com)<br>A leading gold company with producing assets in USA, Türkiye, Canada, and Argentina, focused on creating value through exploration and development | Mining | 🇺🇸 Denver | 1,281 | 1946 |
| 20 | [PT Bayan Resources Tbk](https://www.tamtam.ai/c/pt-bayan-resources-tbk) (bayan.com.sg)<br>Integrated coal producer in Indonesia operating mines, terminals, and transfer stations Specializes in mining and producing various coal qualities | Mining | 🇺🇸 South Jakarta | 1,264 |  |
| 21 | [Covia](https://www.tamtam.ai/c/covia) (coviacorp.com)<br>A leading provider of minerals and material solutions for Industrial and Energy markets, offering high-quality products, technical capabilities, and extensive distribution network | Mining | 🇺🇸 Independence | 1,251 | 2018 |
| 22 | [Noranda Aluminum](https://www.tamtam.ai/c/noranda-aluminum) (marketcap.company)<br>A leading North American company producing value-added primary aluminum products and rolled aluminum coils with operations in smelting, refining, and rolling mills | Mining | 🇺🇸 Franklin | 1,246 |  |
| 23 | [Aleris](https://www.tamtam.ai/c/aleris) (aleris.com)<br>A global leader in aluminum rolled products serving major customers in aerospace, building, containers, transportation industries with advanced manufacturing capabilities | Mining | 🇺🇸 Cleveland | 1,235 |  |
| 24 | [Compass Minerals](https://www.tamtam.ai/c/compass-minerals) (compassminerals.com)<br>Global provider of essential minerals for various applications, including winter safety, agriculture, and fire retardation, with operations in the US, Canada, and the UK | Mining | 🇺🇸 Overland Park | 1,158 |  |
| 25 | [TMS International LLC](https://www.tamtam.ai/c/tms-international-llc) (tmsinternational.com)<br>A global leader in providing on-site steel mill services, focused on safety, innovation, environmental protection, and creating value for customers through expertise and unrivaled service | Mining | 🇺🇸 Pittsburgh | 1,146 | 1926 |
| 26 | [CONSOL Energy](https://www.tamtam.ai/c/consol-energy) (corenaturalresources.com)<br>A producer and exporter of high-quality bituminous thermal and metallurgical coal with productive longwall mining operations in the Northern Appalachian Basin | Mining | 🇺🇸 Canonsburg | 1,142 | 2017 |
| 27 | [Arch Resources, Inc](https://www.tamtam.ai/c/arch-resources-inc) (corenaturalresources.com)<br>Producer and exporter of metallurgical and thermal coals, operating multiple mines and marine export terminals focused on seaborne markets. | Mining | 🇺🇸 St. Louis | 1,136 |  |
| 28 | [Rogers Group Inc.](https://www.tamtam.ai/c/rogers-group-inc) (rogersgroupincint.com)<br>A 115-year-old aggregates and asphalt highway construction company operating in 10 states, employing 3,000 people, and recognized as the largest privately held aggregate producer in the US | Mining | 🇺🇸 Nashville | 1,121 | 1908 |
| 29 | [Austin Powder](https://www.tamtam.ai/c/austin-powder) (austinpowder.com)<br>The company manufactures industrial explosives, accessories, and offers technical blasting services globally | Mining | 🇺🇸 Cleveland | 1,090 | 1833 |
| 30 | [Schnitzer Steel](https://www.tamtam.ai/c/schnitzer-steel) (radiusrecycling.com)<br>Global leader in steel recycling, with 95 facilities and deep water ports for efficient delivery of scrap metals worldwide Headquarters in Portland, Oregon | Mining | 🇺🇸 Portland | 1,058 | 1906 |
| 31 | [TIMET](https://www.tamtam.ai/c/timet) (timet.com)<br>A leading producer of titanium melted and mill products for various industries worldwide, offering a wide range of high-quality titanium products | Mining | 🇺🇸 Pittsburgh | 1,028 | 1950 |
| 32 | [Molycop](https://www.tamtam.ai/c/molycop) (molycop.com)<br>A global mining solutions provider with a focus on innovative technologies, quality products, industry-leading standards, and sustainability in mining operations worldwide | Mining | 🇺🇸 Omaha | 991 | 1918 |
| 33 | [ArcelorMittal USA](https://www.tamtam.ai/c/arcelormittal-usa) (clevelandcliffs.com)<br>Produces flat-rolled carbon steel products for automotive, construction, and appliance markets, utilizing mining and raw materials for integrated steel production. | Mining | 🇺🇸 Cleveland | 928 |  |
| 34 | [OmniSource, LLC](https://www.tamtam.ai/c/omnisource-llc) (omnisource.com)<br>A leading metals-recycling company with facilities across North America, processing millions of tons of ferrous and nonferrous metals annually Owned by Steel Dynamics, Inc | Mining | 🇺🇸 Fort Wayne | 909 | 1943 |
| 35 | [Ecobat](https://www.tamtam.ai/c/ecobat) (ecobat.com)<br>Global leader in battery recycling, providing sustainable solutions for essential energy storage needs in a circular economy Powers industries worldwide Offers job opportunities | Mining | 🇺🇸 Dallas | 863 | 1938 |
| 36 | [A. M. Castle & Co.](https://www.tamtam.ai/c/a-m-castle-and-co) (amcastle.com)<br>Global supplier and processor of specialty metals serving aerospace, defense, industrial, and medical markets with quality and reliability. | Mining | 🇺🇸 Oak Brook | 861 | 1890 |
| 37 | [U.S. Silica Company](https://www.tamtam.ai/c/u-s-silica-company) (ussilica.com)<br>Global performance materials company specializing in commercial silica for oil and gas and industrial applications, with expertise in mining, processing, and logistics | Mining | 🇺🇸 Katy | 838 | 1900 |
| 38 | [Westmoreland Mining LLC](https://www.tamtam.ai/c/westmoreland-mining-llc) (westmoreland.com)<br>A leading coal company in the US with operations in surface mining, char production, and activated carbon plant ownership | Mining | 🇺🇸 Lone Tree | 788 | 1854 |
| 39 | [Special Metals](https://www.tamtam.ai/c/special-metals) (precast.com)<br>A global leader in high-performance alloy manufacturing, offering solutions to materials challenges through a range of nickel and cobalt alloys worldwide | Mining | 🇺🇸 Warrensville Heights | 780 |  |
| 40 | [HEPI (H-E Parts International)](https://www.tamtam.ai/c/hepi-h-e-parts-international) (h-eparts.com)<br>Leading global supplier of parts and components to mining, quarry, and construction industries, committed to innovation and providing high-quality, cost-effective solutions | Mining | 🇺🇸 Atlanta | 776 |  |
| 41 | [Minova](https://www.tamtam.ai/c/minova) (minovaglobal.com)<br>Provider of high-quality ground support and geotechnical solutions for mining, tunnelling, and surface ground engineering projects worldwide. | Mining | 🇺🇸 Greenwood Village | 771 |  |
| 42 | [AM/NS Calvert](https://www.tamtam.ai/c/am-ns-calvert) (northamerica.arcelormittal.com)<br>A leading steel processing plant in Calvert, AL, specializing in flat-rolled carbon steel products for various industries with cutting-edge production facilities and technologies | Mining | 🇺🇸 Calvert | 735 | 2014 |
| 43 | [PJ](https://www.tamtam.ai/c/pj) (pj-inc.com)<br>A pipeline company specializing in slurry transport, EPCM delivery, safety, environmental impact reduction, and prioritizing client needs | Mining | 🇺🇸 San Francisco | 730 | 2019 |
| 44 | [JENNMAR](https://www.tamtam.ai/c/jennmar) (jennmar.com)<br>Global leader in ground control technology for mining, tunneling, and civil construction industries, offering a wide range of quality products and services worldwide | Mining | 🇺🇸 Pittsburgh | 724 | 1972 |
| 45 | [Charter Steel](https://www.tamtam.ai/c/charter-steel) (chartersteel.com)<br>Supplier of carbon and alloy special bar quality rod, wire, and bar products with high recycled content and advanced processing. | Mining | 🇺🇸 Saukville | 712 |  |
| 46 | [Buzzi Unicem USA](https://www.tamtam.ai/c/buzzi-unicem-usa) (buzziunicemusa.com)<br>A leading US cement manufacturer with 8 plants and 35 terminals, supplying cement to over 3,800 companies across 20 states | Mining | 🇺🇸 Bethlehem | 709 |  |
| 47 | [Century Aluminum](https://www.tamtam.ai/c/century-aluminum) (centuryaluminum.com)<br>Primary aluminum production with operations in the US and Iceland, plus carbon anode manufacturing and alumina mining and refining. | Mining | 🇺🇸 Chicago | 695 | 1995 |
| 48 | [REMA TIP TOP](https://www.tamtam.ai/c/rema-tip-top) (rematiptop.com)<br>A company based in Utah specializing in products and services related to tire repair and maintenance | Mining | 🇺🇸 West Jordan | 690 |  |
| 49 | [Sibanye Stillwater](https://www.tamtam.ai/c/sibanye-stillwater-columbus) (sibanyestillwater.com)<br>This company operates mines in Montana to extract and process platinum group metals, primarily producing palladium and platinum, with a focus on sustainability and recycling | Mining | 🇺🇸 Columbus | 688 |  |
| 50 | [Drummond Company, Inc.](https://www.tamtam.ai/c/drummond-company-inc) (drummondco.com)<br>The company prioritizes employee well-being, customer satisfaction, community support, and environmental sustainability in all of its projects worldwide | Mining | 🇺🇸 Birmingham | 686 | 1935 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

## More company lists in the United States

- [The largest companies in the United States](https://www.tamtam.ai/l/largest-companies-united-states) (104,975)
- [Multinational companies in the United States](https://www.tamtam.ai/l/multinational-companies-united-states) (16,197)
- [Manufacturers in the United States](https://www.tamtam.ai/l/manufacturers-united-states) (8,678)
- [Professional services firms in the United States](https://www.tamtam.ai/l/professional-services-firms-united-states) (7,079)
- [Retail chains in the United States](https://www.tamtam.ai/l/retail-chains-united-states) (6,981)
- [Financial services firms in the United States](https://www.tamtam.ai/l/financial-services-firms-united-states) (6,864)
- [Companies with in-house R&D in the United States](https://www.tamtam.ai/l/r-and-d-companies-united-states) (6,796)
- [IT Services and IT Consulting companies in the United States](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-united-states) (6,694)
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- [IT services companies in the United States](https://www.tamtam.ai/l/it-services-companies-united-states) (5,818)
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- [Construction companies in the United States](https://www.tamtam.ai/l/construction-companies-united-states) (3,271)

## The same list elsewhere

- [Mining companies in the world](https://www.tamtam.ai/l/mining-companies-in-the-world) (1,586)
- [Mining companies in North America](https://www.tamtam.ai/l/mining-companies-in-north-america) (377)

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Source: https://www.tamtam.ai/l/mining-companies-united-states