Allahabad Bank

Allahabad Bank (Hindi: इलाहाबाद बैंक), which began operations in 1865, now has its head-quarters in Kolkata. Currently the bank has 2402 branches across the country.

Ananda Publishers

Ananda Publishers (Bengali: আনন্দ পাবলিশার্স; Anondo Publishers) is a large publishing group with head-quarters in Kolkata. It publishes numerous Bengali books by many renowned authors. It has one of the largest stalls in the Kolkata Book Fair, and is often awarded a prize for its stall. Ananda Publishers is the division of ABP Group.

Baidyanath group

Baidyanath is one of the oldest and most popular pharmaceutical firm specialising in Ayurvedic medicines.It has been manufacturing many highly popular items like Chyawanprash and Dashmularishta for several years.

Balmer Lawrie

Balmer Lawrie & Co. Ltd is a Government of India Enterprise which manufactures barrels and drums, greases and lubricants, performance chemicals, functional additives and marine freight containers. It also undertakes tea exports and trading, travel, tours, and cargo and engineering services such as turnkey projects, energy-audit and consultancy and freight-container repairs.

Berger Paints India

Berger Paints India Limited (BSE: 509480, NSE: BERGEPAINT) is an Indian paint company which operates chiefly in India headquartered in Kolkata, India. It has come a long way since its inception in the year 1923. India’s second largest decorative paint player, Berger Paints is headquartered in Kolkata and services the market through a distribution network of 82 stock points and 12,000+ paint retailers.

Birla Corporation

Birla Corporation Limited, popularly known as Birla Corp is an Indian company based in Kolkata. It is the flagship company of the M P Birla group of companies.

Britannia Industries

Britannia Industries Limited is an Indian company based in Kolkata that is famous for its Britannia and Tiger brands of biscuit, which are popular throughout the country. Britannia is has an estimated 38% market share. The Company's principal activity is the manufacture and sale of biscuits, bread, rusk, cakes and dairy products.

Calcutta Electric

The Calcutta Electric Supply Corporation or CESC supplies electricity to area under the Kolkata municipal corporation in the city of Kolkata, India, mainly but also few areas of Howrah, Hooghly, 24 Parganas (North) and 24 Parganas (South) districts of West Bengal, India.

Calcutta Stock Exchange Association Limited

Calcutta Stock Exchange (CSE) located at the Lyons Range, Kolkata, India, was incorporated in 1908 and is the second largest bourse in India.

Coal India Limited

Coal India Limited (CIL) (BSE: 533278, NSE: COALINDIA) is an Indian state-controlled coal company headquartered in Kolkata, West Bengal, India and the world's largest coal miner with revenue exceeding Rs 51,925 Cr (FY2009-10).

Exide Industries

Exide Industries is the biggest storage battery producing company in India. It is also the largest power storage company in the whole of the south-east Asian region. It is also a manufacturer of automotive lead-acid batteries.

GKB Opticals

GKB Opticals, is a large Indian retailer of optical products (sunglasses, eyeglasses, contact lenses & accessories), and operates multiple retail stores in India. Headquartered in Kolkata, the company has over 60 stores across India and employs over 600 people. Started in 1959, the company set up its first retail outlet in Gariahat - Kolkata, which is one of the flagship stores of the company. GKB Opticals has grown to a large retail chain of outlets, with lifestyle optical products.

Hindustan Motors

Hindustan Motors is an automobile manufacturer from India. It is part of the Birla Technical Services industrial group. The company was the largest car manufacturer in India before the rise of Maruti Udyog.

Itc Infotech

ITC Infotech is an IT services company headquartered in Bangalore, India. It was set up in 2000 and provides IT services to companies in North America, Europe and Asia Pacific, including India.

ITC Limited

ITC Limited (BSE: 500875) public conglomerate company headquartered in Kolkata, India. ITC has a diversified presence in Cigarettes, Hotels, Paperboards & Specialty Papers, Packaging, Agri-Business, Packaged Foods & Confectionery, Information Technology, Branded Apparel, Personal Care, Stationery, Safety Matches and other FMCG products.

Jai Balaji group

Jai Balaji Group is a Primary Steel Plant with Captive Power Generation and plants in nine locations. It also has plans to set up a Mega Steel, Cement and Power Project at Raghunathpur.

United Bank of India

United Bank of India (UBI) (BSE: 533171) is a state-owned financial services company headquartered in Kolkata, India. Presently the bank has a three-tier organizational setup consisting of its Head office in Kolkata, 31 Regional offices and 1600 branches spread all over India. However, its major presence is in eastern India. Due to a common acronym (UBI), which it shares with Union Bank of India, which also has an all-India presence, the public sometimes confuses the two banks.