# The 30 largest corporate groups and holding companies in Kolkata

Tamtam tracks 49 corporate groups and holding companies headquartered in Kolkata. This list ranks the 30 largest by number of employees on LinkedIn, led by ITC Limited, RP Sanjiv Goenka Group and Emami Ltd. Their median headcount is 1,473. Half of them were founded in 1974 or later.

The corporate groups and holding companies in Kolkata are predominantly large, well-established firms with a strong presence in manufacturing and diversified industries. Companies like ITC Limited are involved in FMCG, packaging, and agriculture, while RP Sanjiv Goenka Group spans power, retail, and IT services. Emami Ltd focuses on personal care, and Rashmi Group has interests in steel, cement, and electronics.

Several companies on this list, such as Coal India Limited, Shyam Steel Industries Limited, and Usha Martin Limited, are heavily involved in mining and steel production. This highlights a significant concentration of heavy industry and manufacturing within Kolkata's corporate landscape.

🇮🇳 Kolkata · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ITC Limited](https://www.tamtam.ai/c/itc-limited) (itcportal.com)<br>Diversified business in FMCG, packaging, paperboards, specialty papers, and agriculture with strong focus on sustainability and rural livelihoods. | Manufacturing | 🇮🇳 Kolkata | 62,035 | 1910 |
| 2 | [RP Sanjiv Goenka Group](https://www.tamtam.ai/c/rp-sanjiv-goenka-group) (rpsg.in)<br>A rapidly expanding conglomerate with diverse holdings in power, energy, manufacturing, retail, IT services, FMCG, media, entertainment, and agriculture sectors | Consumer Services | 🇮🇳 Kolkata | 36,571 | 1820 |
| 3 | [Emami Ltd](https://www.tamtam.ai/c/emami-ltd) (emamigroup.com)<br>A leading personal care and healthcare business in India with a wide range of household brand names, a strong global presence, and aggressive marketing strategies | Consumer Goods | 🇮🇳 Kolkata | 5,903 | 1974 |
| 4 | [Rashmi Group](https://www.tamtam.ai/c/rashmi-group) (rashmigroup.com)<br>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 | Mining | 🇮🇳 Kolkata | 3,059 | 1966 |
| 5 | [Shyam Steel Industries Limited](https://www.tamtam.ai/c/shyam-steel-industries-limited) (shyamsteel.com)<br>A leading primary steel producer in India, manufacturing TMT Rebar and Structural steel with a focus on safety, sustainability, and quality products | Mining | 🇮🇳 Kolkata | 2,974 | 1953 |
| 6 | [Coal India Limited](https://www.tamtam.ai/c/coal-india-limited-90357974) (coalindia.in)<br>A leading state-owned coal mining corporation in India with the largest coal production in the world and diverse subsidiary operations | Mining | 🇮🇳 Kolkata | 2,498 | 1975 |
| 7 | [MP Birla Cement](https://www.tamtam.ai/c/mp-birla-cement) (birlacorporation.com)<br>A leading cement manufacturer with 10 plants across India, producing high-quality cement brands tested for durability, strength, and corrosion resistance | Wholesale Building Materials | 🇮🇳 Kolkata | 2,282 | 1957 |
| 8 | [Balmer Lawrie & Co. Ltd.](https://www.tamtam.ai/c/balmer-lawrie-and-co-ltd) (balmerlawrie.com)<br>A diversified conglomerate with a 150-year history, specializing in logistics, manufacturing steel barrels, greases & lubricants, travel services, and community development projects | Oil and Gas | 🇮🇳 Kolkata | 2,071 | 1867 |
| 9 | [Haldia Petrochemicals Ltd](https://www.tamtam.ai/c/haldia-petrochemicals-ltd) (haldiapetrochemicals.com)<br>An integrated petrochemical complex in Eastern India producing polymers and chemicals with a focus on quality, safety and environmental considerations for global supply | Oil and Gas | 🇮🇳 Kolkata | 1,841 | 1985 |
| 10 | [ABP Group](https://www.tamtam.ai/c/abp-group) (abp.in)<br>A media conglomerate with 12 publications, 6 news channels, book publishing, radio, matrimony business, and online platforms, reaching millions daily | Newspaper Publishing | 🇮🇳 Kolkata | 1,687 | 1922 |
| 11 | [Titagarh](https://www.tamtam.ai/c/titagarh) (titagarh.in)<br>A leading Indian manufacturer of railway passenger and freight rolling stock, with global presence spanning India, Italy, and France Specializing in specialized engineering equipment | Automation Machinery Manufacturing | 🇮🇳 Kolkata | 1,556 | 1997 |
| 12 | [Techno India Group](https://www.tamtam.ai/c/techno-india-group) (technoindiagroup.com)<br>Leading knowledge management group in India offering education from K-12 to postgraduate level, with state-of-art campuses, strong faculty support, and global industry partnerships | Education Administration Programs | 🇮🇳 Kolkata | 1,525 |  |
| 13 | [McNally Bharat Engineering Company limited](https://www.tamtam.ai/c/mcnally-bharat-engineering-company-limited) (mcnallybharat.com)<br>A leading engineering company in India providing turnkey solutions in power, steel, material handling, mineral beneficiation, and more with over 300 constructed plants | Design Services | 🇮🇳 Kolkata | 1,521 | 1943 |
| 14 | [Usha Martin Limited](https://www.tamtam.ai/c/usha-martin-limited) (ushamartin.com)<br>Leading manufacturer of steel wire rope & related products for various industries worldwide, providing high-performance solutions through state-of-the-art facilities and global service centers | Manufacturing | 🇮🇳 Kolkata | 1,516 | 1960 |
| 15 | [Electrosteel Group](https://www.tamtam.ai/c/electrosteel-group) (electrosteel.com)<br>The company specializes in manufacturing steel castings, cast iron spun pipes, and ductile iron pipes, with a global presence across five continents | Industrial Machinery Manufacturing | 🇮🇳 Kolkata | 1,473 | 1994 |
| 16 | [Jai Balaji Group India](https://www.tamtam.ai/c/jai-balaji-group-india) (jaibalajigroup.com)<br>A leading steel manufacturer in Eastern India, producing high-quality steel across eight manufacturing units in various states | Automation Machinery Manufacturing | 🇮🇳 Kolkata | 1,449 | 1999 |
| 17 | [Linde India Limited](https://www.tamtam.ai/c/linde-india-limited) (linde.in)<br>Leading industrial gases company in India, owning and operating the largest air separation plant with over 20 production facilities and filling stations nationwide | Chemicals | 🇮🇳 Kolkata | 1,293 |  |
| 18 | [Tega Industries](https://www.tamtam.ai/c/tega-industries) (tegaindustries.com)<br>A global leader in heavy-duty engineering products for mining and material handling industries, with over 47 years of experience and a worldwide presence | Mining | 🇮🇳 Kolkata | 1,082 | 1976 |
| 19 | [TCG Lifesciences Pvt Ltd.](https://www.tamtam.ai/c/tcg-lifesciences-pvt-ltd) (tcgls.com)<br>Global Contract Research and CDMO providing innovative R&D services in pharmaceutical, biotech sectors Specializing in chemistry synthesis, pharmacology, DMPK, and analytical development | Research Services | 🇮🇳 Kolkata | 1,079 | 2001 |
| 20 | [AmbujaNeotia Group](https://www.tamtam.ai/c/ambujaneotia-group) (ambujaneotia.com)<br>A prominent corporate house in Kolkata excelling in real estate, hospitality, healthcare, and education, known for landmark projects and transformative experiences | Real Estate | 🇮🇳 Kolkata | 1,066 | 1993 |
| 21 | [Gainwell CAT](https://www.tamtam.ai/c/gainwell-cat) (gainwellindia.com)<br>The company is a partner of Caterpillar in India, providing technologically advanced products and turnkey solutions for infrastructure, mining, and other sectors | Construction | 🇮🇳 Kolkata | 1,030 | 1944 |
| 22 | [Keventer](https://www.tamtam.ai/c/keventer) (keventer.com)<br>A Kolkata-based conglomerate with businesses in food processing, real estate, and franchise operations, focusing on dairy products and expanding in food processing industry | Food and Beverage Services | 🇮🇳 Kolkata | 938 | 1986 |
| 23 | [Rashmi Metaliks Limited](https://www.tamtam.ai/c/rashmi-metaliks-limited) (rashmigroup.com)<br>Integrated steel manufacturing facility producing a wide range of steel products, including Pellet, Sinter, Pig Iron, Sponge Iron, Ductile Iron Pipe, and more, with quality and environmental certifications | Wholesale Building Materials | 🇮🇳 Kolkata | 878 |  |
| 24 | [Coal India Limited](https://www.tamtam.ai/c/coal-india-limited) (coalindia.in)<br>A state-owned coal mining corporation in India, CIL is the largest coal producer globally with multiple subsidiaries and training institutes | Mining | 🇮🇳 Kolkata | 836 | 1975 |
| 25 | [Rashmi Metaliks](https://www.tamtam.ai/c/rashmi-metaliks) (rashmimetaliks.com)<br>A global conglomerate excelling in Iron & Steel, Cement, Power, and Ferro Alloy industries, focusing on indigenous technologies for sustainable development | Manufacturing | 🇮🇳 Kolkata | 820 | 2004 |
| 26 | [Tata Metaliks](https://www.tamtam.ai/c/tata-metaliks) (tatasteel.com)<br>A leading manufacturer of foundry grade Pig Iron and Ductile Iron Pipes, providing the latest updates on products and innovations | Primary Metal Manufacturing | 🇮🇳 Kolkata | 809 | 1994 |
| 27 | [Veedol](https://www.tamtam.ai/c/veedol) (veedolindia.com)<br>Leading manufacturer and marketer of quality lubricants in India, catering to automotive and industrial segments with a range of high performance engine oils, gear oils, transmission oils, and greases | Oil and Gas | 🇮🇳 Kolkata | 776 | 1928 |
| 28 | [SHALIMAR GROUP OF COMPANIES](https://www.tamtam.ai/c/shalimar-group-of-companies) (shalimarcorp.in)<br>This company provides customers with fresh, nutritious food products that are both delicious and beneficial for their health | Food and Beverage Services | 🇮🇳 Kolkata | 726 | 1968 |
| 29 | [Allahabad Bank](https://www.tamtam.ai/c/allahabad-bank-kolkata) (indianbank.in)<br>A nationalized bank in India, Allahabad Bank was the oldest joint stock bank until its merger with Indian Bank in 2020 | Banking | 🇮🇳 Kolkata | 713 | 1865 |
| 30 | [Shakambhari Group](https://www.tamtam.ai/c/shakambhari-group) (elegantsteels.com)<br>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 | Mining | 🇮🇳 Kolkata | 682 |  |

## 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 11, 2026.

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Source: https://www.tamtam.ai/l/holding-companies-kolkata