| # | Company | Employees |
|---|---|---|
| 1 |
Gerdaugerdau.com.br
A leading steel producer in the Americas, specializing in long and special steel, with operations in nine countries and a focus on sustainability |
23,208 |
| 2 |
CSN - Companhia Siderúrgica Nacionalcsn.com.br
One of the most efficient integrated steel complexes globally, operating in five key sectors: steelmaking, mining, logistics, cement, and energy |
20,603 |
| 3 |
Nexa Resourcesnexaresources.com
Global mining company within Votorantim, producing non-ferrous metals that contribute to society's daily life, with shares traded on NYSE and TSX |
7,091 |
| 4 |
CBA | Companhia Brasileira de Alumíniocba.com.br
Specializing in sustainable production, we mine bauxite, manufacture aluminum products, and lead in recycling, connecting individuals with the versatility of aluminum in everyday life |
5,190 |
| 5 |
CMOC Brasilcmocbrasil.com
A mining industry specializing in niobium and phosphates, essential minerals for global industry and Brazilian agriculture Prioritizing safety, sustainability, and community well-being |
2,117 |
| 6 |
EroBrasilerobrasil.com
A Brazilian group with global technology and Canadian expertise, operating in the regions of Caraíba, Tucumã, and Xavantina for over half a century |
1,989 |
| 7 |
GRUPO SIMECgruposimec.com.br
The group operates in the steel industry, with operations in Mexico, Canada, USA, and Brazil, producing 6 million tons of special steels annually |
1,894 |
| 8 |
Villares Metalsvillaresmetals.com.br
With over 75 years of history, the company is a global leader in developing high-quality special steels and alloys for various industries worldwide |
1,664 |
| 9 |
Paranapanema S.A.paranapanema.com.br
The company specializes in manufacturing and selling electrolytic copper products, sulfuric acid, precious metals, and copper tubes and connections |
1,605 |
| 10 |
Termomecanicatermomecanica.com.br
A leading Brazilian company in the non-ferrous metals industry, specializing in the transformation of copper and its alloys into various semi-finished and finished products |
1,523 |
| 11 |
REMA TIP TOP Brasilrttshop.com.br
Specializing in materials processing, corrosion solutions, conveyor belt vulcanization, and automotive tire repair, this multinational offers a wide range of products and services worldwide |
1,421 |
| 12 |
IBAR - Indústrias Brasileiras de Artigos Refratáriosibar.com.br
A Brazilian leader in advanced refractory materials technology, offering services to enhance operational efficiency, optimize investments, reduce costs, and increase productivity across various industries |
898 |
| 13 |
GHT - Grupo Hidrau Torquegrupoht.com.br
One of the largest inventories of spare parts for heavy equipment in Latin America, offering solutions with tradition, quality, and sustainability |
825 |
| 14 |
Grupo Açotubolinktr.ee
A leading steel industry group focusing on excellence, innovation, and customer satisfaction through a diverse range of products and solutions |
816 |
| 15 |
Grupo Maringágrupomaringa.com.br
A group specializing in sugar, ethanol, renewable energy, and manganese ferroalloys production, with a focus on quality, safety, and community development |
756 |
| 16 |
InfraBrasil Obras pesadasinfrabrasil.net.br
Offering high-quality products and services since 2001 for the Mining and Heavy Construction sectors, with a large fleet of equipment and machinery rentals available |
750 |
| 17 |
Mercurio Conveyor Beltcorreiasmercurio.com.br
Specializing in conveyor belt solutions for over 76 years, we are a leader in our segment, offering a complete portfolio globally |
594 |
| 18 |
Latasagruporeciclabr.com.br
Processes over 330,000 tons of aluminum annually, supplying automotive, steel, metallurgical, packaging, and consumer goods industries with recycled non-ferrous metals. |
541 |
| 19 |
Arim Componentes SAarim.com.br
Specializes in manufacturing components, gas taps, safety valves, and connections in zinc alloy for gas systems appliances and household cookers, providing competitive solutions and services |
540 |
| 20 |
Manetonimanetoni.com.br
A leading distributor of steel for Construction, Agriculture, and Industry, providing cutting/bending services, and urban/rural fencing solutions with a strong focus on quality and customer satisfaction |
447 |
| 21 |
Bun/Buntechbuntech.com
A conglomerate with operations in Brazil, Argentina, and Colombia, specializing in bentonite mining and a diversified portfolio of mineral products |
413 |
| 22 |
Buritirama Mineraçãoburitirama.com
A leading producer of manganese globally, recognized for high-quality ore Focus on growth, efficiency, and community impact in mining sector |
365 |
| 23 |
Cecil Laminação de Metaiscecil.com.br
Established in 1961, this company specializes in non-ferrous metals such as copper, brass, and aluminum, with a strong commitment to sustainable practices |
351 |
| 24 |
Jundujundu.com.br
A family of over 300 professionals dedicated to responsibly transforming mineral resources into wealth-generating solutions for society |
245 |
| 25 |
Elinoxelinox.com.br
With over 38 years of experience, this company is a leading distributor of stainless steel in Brazil, offering high-quality products and personalized service |
214 |
| 26 |
Lealfer Indústria e Comércio de aço Ltda.lealfer.com.br
With over 50 years of experience, the company provides high-quality steel products to customers, including coils, sheets, strips, and blanks They prioritize quality and customer service |
209 |
| 27 |
Fupresa Microfusão - Investment Castingfupresa.com.br
A leading precision casting industry in Latin America with a history of tradition, quality, and technology in manufacturing precision parts and components |
202 |
| 28 |
Master Perfurações e Desmontesmasterperfuracoes.com
Specializing in civil construction and mining, offering rock drilling, explosive rock breaking, and hydraulic, DTH, and pneumatic drill operation and rental services nationwide |
190 |
| 29 |
Noroaço Comércio de Ferro e Açonoroaco.com
A leading distributor of iron and steel products for various industries nationwide, offering a wide range of high-quality products with excellent customer service and logistics |
184 |
| 30 |
Fundição Regali Brasil Ltdaregalibrasil.com.br
Specializing in metal casting, the company offers a range of services related to foundry work, serving various industries with quality products |
180 |
| 31 |
Tecnoredtecnored.com.br
The company provides sustainable, low-carbon solutions for the steel industry through their innovative and patented Tecnored™ technology and ongoing research and development efforts |
176 |
| 32 |
Aperam Serviços & Soluçõesaperamservicos.com.br
Integrated distribution network offering stainless steel solutions for various industries through a wide range of products and services like cutting and finishing |
175 |
| 33 |
Metaltecmetaltecdobrasil.com.br
With 35 years of experience in the metallurgical market, specializes in producing perforated sheets, special stamping, and products for the household market |
168 |
| 34 |
Liggaligga.com.br
A private use terminal in São Luis, Brazil focusing on increasing international trade through port, road, and railway connections for key cargo types |
156 |
| 35 |
Grupo Sansongruposanson.com.br
With over 30 years of experience, the company is a regional leader in road infrastructure and mining projects thanks to its entrepreneurial spirit and technological investments |
150 |
| 36 |
bbosch Galvanização do Brasil Ltdabbosch.com.br
Specializing in hot-dip galvanization for protecting steel structures, providing sustainable surface treatment and following strict environmental standards, with advanced technology and multiple industry solutions |
146 |
| 37 |
ACZ INOXaczinox.com.br
Supplier of stainless steel materials (wires, bars, sheets) with fast delivery, serving various industries with a highly skilled team and modernized facilities in SP, Brazil |
102 |
| 38 |
Metalinox Cogne Aços Inoxidáveis Especiaismetalinoxsp.com.br
A distributor of high-quality stainless steel and special alloys, part of a global group specializing in stainless steel long products and nickel alloys |
60 |
| 39 |
WTRwtrfundicao.com.br
Specialized in crushing and grinding, providing durable degerminators and defibrillators for the food industry, biofuel plants, and wood veneer producers Manufacturing custom replacement cast parts |
30 |
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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 Oct 24, 2026.
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