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List of Mining companies in North America

Tamtam tracks 377 Mining companies headquartered in North America. This list ranks the 100 largest by number of employees on LinkedIn, led by Alcoa, Barrick Mining Corporation and AngloGold Ashanti. Their median headcount is 1,142. Half of them were founded in 1972 or later. The most common headquarters are Toronto (12), Vancouver (11) and Pittsburgh (4).

๐ŸŒ North America100 companiesUpdated Nov 12, 2026

These North American mining companies are large, established firms involved in the extraction and processing of various minerals. Many specialize in precious metals like gold and silver, while others focus on industrial minerals such as copper, aluminum, and construction materials. The companies listed include Alcoa, a global leader in aluminum products, Barrick Mining Corporation, focused on gold and copper assets, and AngloGold Ashanti, a global gold mining company.

A notable pattern among these companies is their diverse geographic distribution across North America, with headquarters in cities such as Pittsburgh, Toronto, Denver, and Vancouver. Several companies, including Freeport-McMoRan and Newmont Corporation, have extensive global operations beyond North America, indicating their significant international presence in the mining sector.

#CompanyIndustryHeadquarters EmployeesFounded
1
Alcoaalcoa.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 17,780 1888
2
Barrick Mining Corporationbarrick.com

A company focused on owning high-quality gold and copper assets, managed by top talent to provide strong returns and benefits to stakeholders

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 15,486 1983
3
AngloGold Ashantianglogoldashanti.com

global gold mining company with operations, projects, and exploration across multiple countries, focusing on value-creating mineral opportunities

Mining ๐Ÿ‡บ๐Ÿ‡ธ Denver 14,393 1998
4
First Quantum Mineralsfirst-quantum.com

A global mining company specializing in copper, nickel, gold, and cobalt production with operations on four continents and a focus on technical expertise and community benefits

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Canada V6C 1X8 12,664 1983
5
Newmont Corporationnewmont.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Denver 12,597 1921
6
Freeport-McMoRanjobs.fcx.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Phoenix 9,855 1834
7
Weir Mineralsglobal.weir

The company provides engineered solutions to the mining industry, offering services from reducing downtime to increasing plant capacity and tailings management

Mining ๐Ÿ‡บ๐Ÿ‡ธ Fort Worth 8,746 1871
8
Teck Resources Limitedteck.com

Canadian company focused on exploration, mining, processing, and refining metals essential for global development and energy transition.

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 7,057 n/a
9
Kinross Gold Corporationkinross.com

A senior gold mining organization with diverse mines and projects in multiple countries, focusing on operational excellence, responsible mining, and sustainability

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 6,873 1993
10
Komatsu Miningkomatsu.com

Development and supply of technologies, equipment, and services for construction, mining, industrial, forestry, and forklift markets worldwide.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Milwaukee 5,339 2017
11
Agnico Eagle Mines Limitedagnicoeagle.com

A senior Canadian gold mining company with mines in Canada, Finland, Mexico, and Australia, focused on producing and exploring precious metals

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 5,223 1957
12
The Mosaic Companymosaicco.com

Global leader in crop nutrient industry, producing and delivering phosphate and potash on large scale Engaged in all phases of crop nutrition worldwide

Mining ๐Ÿ‡บ๐Ÿ‡ธ Tampa 4,952 2004
13
Pan American Silver Corp.panamericansilver.com

A leading producer of precious metals in the Americas with silver and gold mines across various countries, known for sustainability and financial management

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 4,919 1994
14
Vulcan Materials Companyvulcanmaterials.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Birmingham 4,780 1957
15
Martin Mariettamartinmarietta.com

A leading supplier of building materials, providing aggregates, cement, concrete, and asphalt products across North America and The Bahamas

Mining ๐Ÿ‡บ๐Ÿ‡ธ Raleigh 4,451 1994
16
Goldcorpnewmont.com

Leading global gold producer with diversified metals portfolio, operating in multiple continents, emphasizing safety, governance, and value creation.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Greenwood Village 4,106 n/a
17
Boart Longyearboartlongyear.com

A global leader in drilling services, equipment manufacturing, technology development, and fostering diversity and inclusion, with operations in 26 countries

Mining ๐Ÿ‡บ๐Ÿ‡ธ West Valley City 3,818 1890
18
ArcelorMittal Dofascodofasco.arcelormittal.com

Leading manufacturer in North America's supply chain, producing sustainable steel products for automotive, energy, packaging, and construction industries, prioritizing employees and community engagement

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Hamilton 3,136 n/a
19
Peabody Energypeabodyenergy.com

Leading coal producer supplying essential materials for affordable energy generation and steel manufacturing with a strong focus on sustainability.

Mining ๐Ÿ‡บ๐Ÿ‡ธ St. Louis 3,106 1883
20
Nevada Gold Minesbarrick.com

A joint venture combining assets in Nevada to create the world's largest gold-producing complex, focused on operational improvements and cost savings

Mining ๐Ÿ‡บ๐Ÿ‡ธ Elko 2,907 2019
21
REDPATH MININGredpathmining.com

A global underground mining solutions provider, specializing in mine development, shaft sinking, production mining, raiseboring, and civil infrastructure development with a focus on ESG criteria

Mining ๐Ÿ‡จ๐Ÿ‡ฆ North Bay 2,840 1962
22
Yamana Gold Inc.panamericansilver.com

Canadian-based gold producer with mining operations and development projects located throughout the Americas, focusing on responsible resource extraction.

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 2,628 2003
23
SRK Consultingsrk.com

An independent international consultancy providing specialized services in geology, mining, environmental, and project evaluation for various clients worldwide

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 2,446 1974
24
IAMGOLD Corporationiamgold.com

An intermediate gold producer and developer with operating mines in North America and West Africa, focused on responsible mining practices and community development

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 2,349 1991
25
AHMSA (Altos Hornos de Mexico S.A.B.)ahmsa.com

Integrated steel company operating mining, transportation, and manufacturing facilities producing various steel products including flat rolled and structural profiles.

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Monclova 2,276 1942
26
B2Gold Corp.b2gold.com

A low-cost international senior gold producer with operating mines in Mali, Namibia, and the Philippines, as well as exploration and development projects worldwide

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 2,230 n/a
27
ESCO Group LLCglobal.weir

Developer and manufacturer of engineered wear parts and replacement products for mining, construction, and industrial applications with global support.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Portland 2,055 1913
28
Aura Minerals Incauraminerals.com

Finds, mines, and supplies gold, copper, and other essential minerals, operating across the Americas with a focus on people, environment, and ethics.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Miami 2,023 n/a
29
Equinox Gold Corp.equinoxgold.com

A growth-focused mining company with operating gold mines in the Americas and plans to achieve over one million ounces of annual gold production

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 1,988 n/a
30
Major Drillingmajordrilling.com

Specialized drilling services with a focus on safety and quality, delivering outstanding results through extensive experience, modern fleet, and local partnerships

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Moncton 1,935 1980
31
Capstone Coppercapstonecopper.com

A mid-tier copper producer focused on the Americas, committed to responsibly meeting global demand while supporting employees, investors, and communities

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 1,908 n/a
32
OceanaGold Corporationoceanagold.com

gold and copper mining company operating four mines in the USA, Philippines, and New Zealand focused on cash flow and returns

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 1,777 1990
33
Lundin Mining Corporationlundinmining.com

A diversified Canadian mining company with operations in multiple countries, producing copper, zinc, gold, and nickel Website: wwwlundinminingcom

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 1,706 1994
34
Penoles Industriespenoles.com.mx

A Mexican company excelling globally in its sector with quality processes, excellent people, and ethical business practices, striving for recognition worldwide

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Mexico City 1,674 1887
35
Waupaca Foundrywaupacafoundry.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Waupaca 1,534 1871
36
Coeur Mining, Inc.coeur.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Chicago 1,465 1928
37
K92 Mining Inc.k92mining.com

A high-grade gold mine in Papua New Guinea, driving growth and expansion with a focus on increasing production, reducing costs, and fostering sustainable development

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 1,430 n/a
38
Lundin Gold Ecuadorfrutadelnorte.com

A mining company based in Canada, operating in over 17 countries worldwide with a focus on sustainability, safety, community relations, and environmental impact

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Los Encuentros 1,405 2015
39
Hudbay Minerals Inc.hudbayminerals.com

Canadian mining integrated in North and South America, focused on discovering, producing, and marketing base and precious metals, committed to governance and sustainability

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 1,337 n/a
40
MACAmaca.net.au

Specialises in mining, crushing, civil construction, infrastructure, and mineral processing with over 20 years of experience in Australia and internationally.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Welshpool 1,329 2002
41
First Majestic Silver Corp.firstmajestic.com

A publicly traded mining company focused on silver and gold production in Mexico and the United States, operating multiple mines

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 1,308 n/a
42
Alamos Gold Inc.alamosgold.com

A Canadian gold producer with three operating mines in North America, a portfolio of exploration projects, and a commitment to sustainable development

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 1,297 2003
43
SSR Mining Inc.ssrmining.com

A leading gold company with producing assets in USA, Tรผrkiye, Canada, and Argentina, focused on creating value through exploration and development

Mining ๐Ÿ‡บ๐Ÿ‡ธ Denver 1,281 1946
44
PT Bayan Resources Tbkbayan.com.sg

Integrated coal producer in Indonesia operating mines, terminals, and transfer stations Specializes in mining and producing various coal qualities

Mining ๐Ÿ‡บ๐Ÿ‡ธ South Jakarta 1,264 n/a
45
Coviacoviacorp.com

A leading provider of minerals and material solutions for Industrial and Energy markets, offering high-quality products, technical capabilities, and extensive distribution network

Mining ๐Ÿ‡บ๐Ÿ‡ธ Independence 1,251 2018
46
Noranda Aluminummarketcap.company

A leading North American company producing value-added primary aluminum products and rolled aluminum coils with operations in smelting, refining, and rolling mills

Mining ๐Ÿ‡บ๐Ÿ‡ธ Franklin 1,246 n/a
47
Alerisaleris.com

A global leader in aluminum rolled products serving major customers in aerospace, building, containers, transportation industries with advanced manufacturing capabilities

Mining ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 1,235 n/a
48
Compass Mineralscompassminerals.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Overland Park 1,158 n/a
49
TMS International LLCtmsinternational.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 1,146 1926
50
CONSOL Energycorenaturalresources.com

A producer and exporter of high-quality bituminous thermal and metallurgical coal with productive longwall mining operations in the Northern Appalachian Basin

Mining ๐Ÿ‡บ๐Ÿ‡ธ Canonsburg 1,142 2017

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51
Arch Resources, Inccorenaturalresources.com

Producer and exporter of metallurgical and thermal coals, operating multiple mines and marine export terminals focused on seaborne markets.

Mining ๐Ÿ‡บ๐Ÿ‡ธ St. Louis 1,136 n/a
52
Rogers Group Inc.rogersgroupincint.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Nashville 1,121 1908
53
North American Construction Groupnacg.ca

A provider of mining and heavy construction services in the Canadian oil sands, with over 60 years of experience and a large equipment fleet

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Parkland County 1,113 n/a
54
Austin Powderaustinpowder.com

The company manufactures industrial explosives, accessories, and offers technical blasting services globally

Mining ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 1,090 1833
55
Algoma Steel Inc.algoma.com

A steel producer in Ontario, focused on innovation and sustainability, supplying quality steel products to various industries in North America

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Sault Ste. Marie 1,089 1901
56
Schnitzer Steelradiusrecycling.com

Global leader in steel recycling, with 95 facilities and deep water ports for efficient delivery of scrap metals worldwide Headquarters in Portland, Oregon

Mining ๐Ÿ‡บ๐Ÿ‡ธ Portland 1,058 1906
57
TIMETtimet.com

A leading producer of titanium melted and mill products for various industries worldwide, offering a wide range of high-quality titanium products

Mining ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 1,028 1950
58
DMC Mining Servicesdmcmining.com

A client-centric mining services company specializing in safe and innovative solutions with expertise in mining engineering, contracting, and proven track record of groundbreaking innovations

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vaughan 994 1980
59
Molycopmolycop.com

A global mining solutions provider with a focus on innovative technologies, quality products, industry-leading standards, and sustainability in mining operations worldwide

Mining ๐Ÿ‡บ๐Ÿ‡ธ Omaha 991 1918
60
STELCO - The Steel Company of Canadastelco.com

Canadian steel manufacturer with technologically advanced facilities and a proud workforce focused on quality, safety, innovation, and environmental responsibility

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Hamilton 975 1910
61
Graymontgraymont.com

Global leader in lime and limestone solutions for environmental and industrial needs, with focus on innovation, employee development, and growth opportunities

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Richmond 947 1948
62
New Gold Inc.newgold.com

Intermediate gold mining company operating two core assets in Canada, focused on responsible, profitable, and sustainable mining practices.

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 939 n/a
63
Sherritt International Corporationsherritt.com

A global leader in mining nickel and cobalt, creating innovative environmental solutions for oil and mining industries, and a major energy producer

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 934 n/a
64
Cementation Americascementation.com

Global mining services provider focused on underground mine contracting, engineering, and material handling solutions, committed to safety, value, and client satisfaction

Mining ๐Ÿ‡จ๐Ÿ‡ฆ North Bay 933 1998
65
ArcelorMittal USAclevelandcliffs.com

Produces flat-rolled carbon steel products for automotive, construction, and appliance markets, utilizing mining and raw materials for integrated steel production.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 928 n/a
66
OmniSource, LLComnisource.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Fort Wayne 909 1943
67
Kinross Tasiastkinrosstasiast.mr

A gold mining company in Mauritania focused on responsible mining, community engagement, and sustainable development with strong international standards

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 903 n/a
68
Royal Canadian Mintmint.ca

The company is a for-profit Crown Corporation responsible for producing coins, managing coinage systems, providing advice on coinage matters, and marketing bullion products

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Ottawa 876 1908
69
Collado Industries by Grupo Colladocolladoindustries.com

With over 30 years of experience, we specialize in steel transformation for industries such as mining, construction, and oil & gas, prioritizing safety, productivity, and performance

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ H.Matamoros 867 1949
70
Ecobatecobat.com

Global leader in battery recycling, providing sustainable solutions for essential energy storage needs in a circular economy Powers industries worldwide Offers job opportunities

Mining ๐Ÿ‡บ๐Ÿ‡ธ Dallas 863 1938
71
A. M. Castle & Co.amcastle.com

Global supplier and processor of specialty metals serving aerospace, defense, industrial, and medical markets with quality and reliability.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Oak Brook 861 1890
72
Centerra Gold Inc.centerragold.com

Canadian gold mining company operating, developing, exploring gold and copper properties in North America, Tรผrkiye, and worldwide Mines in Canada and Tรผrkiye, projects in US

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 859 2004
73
PROLAMSAprolamsa.com

Leading manufacturer of carbon steel tubes and components serving industries like construction, automotive, and agriculture with plants in Mexico and the US

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ General Escobedo 847 1954
74
U.S. Silica Companyussilica.com

Global performance materials company specializing in commercial silica for oil and gas and industrial applications, with expertise in mining, processing, and logistics

Mining ๐Ÿ‡บ๐Ÿ‡ธ Katy 838 1900
75
Gerdau Corsagerdaucorsa.com.mx

With 123 years of history, the company is a major Brazilian steel producer focused on sustainability, recycling, and reducing carbon emissions

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Mexico City 837 n/a
76
Giampaolo Group Inc.

Fully integrated metal management company with operations in metal recycling, steel processing, aluminum production, real estate development, and charitable fundraising events for various causes

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Brampton 829 1975
77
Baffinlandbaffinland.com

A mining company operating in the Arctic Circle, specializing in iron ore extraction with a focus on safe, sustainable practices and Inuit consultation

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Oakville 827 1986
78
TYASAtyasa.com

A leading Mexican steel company focused on growth, innovation, sustainability, and environmental conservation through advanced technology and a talented workforce

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Ixtaczoquitlan 794 1980
79
Westmoreland Mining LLCwestmoreland.com

A leading coal company in the US with operations in surface mining, char production, and activated carbon plant ownership

Mining ๐Ÿ‡บ๐Ÿ‡ธ Lone Tree 788 1854
80
Special Metalsprecast.com

A global leader in high-performance alloy manufacturing, offering solutions to materials challenges through a range of nickel and cobalt alloys worldwide

Mining ๐Ÿ‡บ๐Ÿ‡ธ Warrensville Heights 780 n/a
81
MacLean Engineeringmacleanengineering.com

Specializing in underground mobile equipment for hard rock mining, offering a wide range of solutions worldwide, including electrification for diesel-free operations

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Collingwood 779 1973
82
HEPI (H-E Parts International)h-eparts.com

Leading global supplier of parts and components to mining, quarry, and construction industries, committed to innovation and providing high-quality, cost-effective solutions

Mining ๐Ÿ‡บ๐Ÿ‡ธ Atlanta 776 n/a
83
Minovaminovaglobal.com

Provider of high-quality ground support and geotechnical solutions for mining, tunnelling, and surface ground engineering projects worldwide.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Greenwood Village 771 n/a
84
Autlรกnautlan.com.mx

The company specializes in the production and commercialization of manganese minerals and ferroalloys, as well as the development of renewable energy projects and sustainable solutions

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Monterrey 752 1953
85
AM/NS Calvertnorthamerica.arcelormittal.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Calvert 735 2014
86
PJpj-inc.com

A pipeline company specializing in slurry transport, EPCM delivery, safety, environmental impact reduction, and prioritizing client needs

Mining ๐Ÿ‡บ๐Ÿ‡ธ San Francisco 730 2019
87
Villacerovillacero.com.mx

Villacero is a group of companies in Mexico and the NAFTA region that transform, process, distribute, and commercialize certified quality steel products globally

Mining ๐Ÿ‡ฒ๐Ÿ‡ฝ Monterrey 730 n/a
88
JENNMARjennmar.com

Global leader in ground control technology for mining, tunneling, and civil construction industries, offering a wide range of quality products and services worldwide

Mining ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 724 1972
89
Quebec Iron Ore Inc.mineraiferquebec.com

Mining company focused on revitalizing Quebec's Bloom Lake Mine, emphasizing sustainable development and promoting high-quality iron ore and skilled trades.

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Montreal 715 2015
90
Asanko Goldasanko.com

Operates a gold mine in Ghana as a joint venture, with one partner as the operator

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Vancouver 713 2007
91
Charter Steelchartersteel.com

Supplier of carbon and alloy special bar quality rod, wire, and bar products with high recycled content and advanced processing.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Saukville 712 n/a
92
Dumas Contracting Ltd.dumasmining.com

A leading underground mining contractor providing full-service solutions across the Americas, specializing in mine construction, production, and engineering services for clients

Mining ๐Ÿ‡จ๐Ÿ‡ฆ Toronto 709 1994
93
Buzzi Unicem USAbuzziunicemusa.com

A leading US cement manufacturer with 8 plants and 35 terminals, supplying cement to over 3,800 companies across 20 states

Mining ๐Ÿ‡บ๐Ÿ‡ธ Bethlehem 709 n/a
94
Century Aluminumcenturyaluminum.com

Primary aluminum production with operations in the US and Iceland, plus carbon anode manufacturing and alumina mining and refining.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Chicago 695 1995
95
REMA TIP TOPrematiptop.com

A company based in Utah specializing in products and services related to tire repair and maintenance

Mining ๐Ÿ‡บ๐Ÿ‡ธ West Jordan 690 n/a
96
Sibanye Stillwatersibanyestillwater.com

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 ๐Ÿ‡บ๐Ÿ‡ธ Columbus 688 n/a
97
Drummond Company, Inc.drummondco.com

The company prioritizes employee well-being, customer satisfaction, community support, and environmental sustainability in all of its projects worldwide

Mining ๐Ÿ‡บ๐Ÿ‡ธ Birmingham 686 1935
98
Martin Engineeringmartin-eng.com

A global leader in bulk materials handling solutions, specializing in conveyor accessories and flow aids to improve efficiency and safety

Mining ๐Ÿ‡บ๐Ÿ‡ธ Neponset 680 1944
99
GMS Mine Repair & Maintenancegmsminerepair.com

A leading provider of underground and surface mine contracting, maintenance, and services with a strong focus on safety, quality, and efficiency

Mining ๐Ÿ‡บ๐Ÿ‡ธ Mountain Lake Park 647 1982
100
Oil-Dri Corporation of Americaoildri.com

A manufacturer of high-quality sorbent products for various markets, including cat litter, fluid purification, agriculture, animal gut health, and sports turf

Mining ๐Ÿ‡บ๐Ÿ‡ธ Chicago 644 n/a

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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.

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