| # | Company | Employees |
|---|---|---|
| 1 |
Coal India Limitedcoalindia.nic.in
A state-owned coal mining corporate in India, leading in production and supply to meet the country's energy needs efficiently and competitively |
8,152 |
| 2 |
SHYAM METALICS AND ENERGY LIMITEDshyammetalics.com
An integrated metal producer in India focusing on Long Steel Products and Ferro Alloys with a track record of positive EBITDA since 2005 |
3,550 |
| 3 |
Rashmi Grouprashmigroup.com
A fast-growing group with expertise in manufacturing ductile iron pipe, steel, cement, dredging, laptops, and mobile devices, with a turnover of around 450 million USD |
3,059 |
| 4 |
Shyam Steel Industries Limitedshyamsteel.com
A leading primary steel producer in India, manufacturing TMT Rebar and Structural steel with a focus on safety, sustainability, and quality products |
2,974 |
| 5 |
Coal India Limitedcoalindia.in
A leading state-owned coal mining corporation in India with the largest coal production in the world and diverse subsidiary operations |
2,498 |
| 6 |
JMS MINING PVT LTDjmsmining.com
Industry leader in implementing Mass Production Technology in underground coal mining Services include mine planning, operations, equipment management, and EHS management following global norms |
1,545 |
| 7 |
JAI BALAJI GROUPjaibalajigroup.com
Steel plant producing Direct Reduced Iron, Sponge Iron, Pig Iron, Billets, Ingots, Ductile Iron pipes, and TMT rebars Integrated manufacturing facility |
1,450 |
| 8 |
M. N. Dastur & Co. (P) Ltd.dastur.com
A pioneering engineering consultancy with a global reputation offering integrated design and engineering services for projects across industries worldwide |
1,281 |
| 9 |
MSP Steelmspsteel.com
An eastern Indian steel manufacturer with in-house power generation, vertically integrated across the steel industry value chain |
1,186 |
| 10 |
Tega Industriestegaindustries.com
A global leader in heavy-duty engineering products for mining and material handling industries, with over 47 years of experience and a worldwide presence |
1,082 |
| 11 |
Eastern Coalfields Limitedeasterncoal.gov.in
A coal producer in India, established in 1975 post nationalisation of coal mines It operates as a subsidiary of Coal India Limited |
1,002 |
| 12 |
Coal India Limitedcoalindia.in
A state-owned coal mining corporation in India, CIL is the largest coal producer globally with multiple subsidiaries and training institutes |
836 |
| 13 |
Mitra SKmitrask.com
A leading global inspection, testing, and certification expert with 80 years of experience serving 50+ industrial sectors with quality assurance services |
791 |
| 14 |
Shakambhari Groupelegantsteels.com
Integrated steel manufacturing conglomerate in Eastern India with 5 steel plants, producing a wide range of iron and steel products for domestic and international markets Engaged in CSR activities |
682 |
| 15 |
Durgapur Steel Plantsail.co.in
An integrated steel plant with modern facilities, focused on increasing production capacity, improving productivity and quality, while contributing to regional development through CSR initiatives |
552 |
| 16 |
Hindustan Copper Limitedhindustancopper.com
A vertically integrated copper producer involved in mining, beneficiation, smelting, refining, and casting copper into saleable products across multiple states in India |
533 |
| 17 |
Bengal Energy Limitedbengalenergy.co.in
The company operates a manufacturing facility producing high-quality coke for blast furnaces, trading in minerals/commodities, and generating power for sale |
515 |
| 18 |
Essel Mining and Industries Limitedesselmining.com
A diversified natural resource company in India, operating in coal mining, iron pellets, and Noble Ferro Alloys, with a focus on green energy and stakeholder value creation |
485 |
| 19 |
SHAKAMBHARI ISPAT & POWER LIMITED
Mining & metals company based in Kolkata, India, specializing in iron and steel production, with a focus on delivering quality products |
278 |
| 20 |
Atha Groupathagroup.in
A long-standing mining group with investments in iron ore, coal, renewable energy, and mineral development, prioritizing environmental and social responsibility through sustainability reporting |
182 |
| 21 |
Rohit Ferro-Tech Ltdrohitferrotech.com
Leading manufacturer of various metal products with a large production capacity, involved in mining ventures for coal and ores internationally |
179 |
| 22 |
Tinplate Companytatatinplate.com
A leading tinplate manufacturer with a capacity of 379,000 metric tonnes, serving various industries with high-quality, recyclable packaging solutions globally |
174 |
| 23 |
AMIT METALIKS LIMITED
A mining and metals company located in Durgapur, West Bengal, India specializing in mining and processing metal products for various industries |
172 |
| 24 |
The Indian Institute of Metalsiim-india.net
An institute focused on metallurgy, providing technical information, organizing events, publishing journals, offering courses, and supporting industry professionals and students |
153 |
| 25 |
MiNSOLminsol.co.in
The company specializes in providing personalized mining solutions, equipment, spare parts, and truck dispatch systems, and also operates as a mine developer |
153 |
| 26 |
GODAVARI COMMODITIES LIMITEDgodavaricommodities.com
A coal mining, trading, logistics, and import company with strong growth, professionalism, and expertise in the industry |
151 |
| 27 |
CONCAST Groupconcastispat.com
Provider of TMT bars, steel products, and iron castings in India Committed to delivering high quality products efficiently and competitively worldwide |
149 |
| 28 |
Hindustan Copper Ltdhindustancopper.com
A Schedule "A" Central Public Sector Enterprise under the Ministry of Mines in India |
146 |
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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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