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29 leading critical infrastructure operators in West Bengal

Tamtam tracks 29 critical infrastructure operators headquartered in West Bengal. This list ranks all of them by number of employees on LinkedIn, led by Bandhan Bank, UCO Bank and Allahabad Bank. Their median headcount is 875. Half of them were founded in 1993 or later. The most common headquarters are Kolkata (26).

馃嚠馃嚦 West Bengal29 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Bandhan Bankbandhanbank.com

A leading banking institution in India offering a wide range of retail financial solutions to urban, semi-urban, and rural customers

Banking 馃嚠馃嚦 Kolkata 36,840 n/a
2
UCO Bankucobank.com

A commercial bank founded in 1943, providing financial services in India and internationally, with a focus on foreign exchange business

Banking 馃嚠馃嚦 Kolkata 6,916 1943
3
Allahabad Bankallahabadbank.in

A nationalized bank headquartered in Kolkata, India, founded in 1865 in Allahabad The oldest joint stock bank in India

Banking 馃嚠馃嚦 Kolkata 4,906 n/a
4
Arohan Financial Services Limitedarohan.in

Providing sustainable financial services to empower underserved households and small businesses, aiming to impact millions of lives by 2028.

Financial Services 馃嚠馃嚦 Kolkata 3,096 2006
5
CESC Limitedcesc.co.in

A pioneer in electricity supply since 1899, this organization generates and distributes power, serves 15 million people, and is expanding with new power stations

Utilities 馃嚠馃嚦 Kolkata 2,760 n/a
6
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

Mining 馃嚠馃嚦 Kolkata 2,498 1975
7
UCO Bank - A Government of India Owned Public Sector Bankucobank.com

A major government-owned commercial bank in India with a countrywide network of service units, specializing in financial participation across various sectors

Banking 馃嚠馃嚦 Kolkata 2,194 1943
8
Damodar Valley Corporationdvc.gov.in

A multipurpose integrated river valley project focusing on flood control, irrigation, water supply, navigation, energy generation, afforestation, and public well-being in the region

Industrial Machinery Manufacturing 馃嚠馃嚦 Kolkata 1,539 1948
9
The West Bengal Power Development Corporation Limited (WBPDCL)wbpdcl.co.in

A state-owned power generation company in West Bengal, India, meeting 60% of state's power demands with a focus on quality, efficiency, and eco-friendly operations

Utilities 馃嚠馃嚦 Kolkata 1,279 1985
10
AMRI Hospitalsamrihospitals.in

A leading healthcare provider in Eastern India with multiple hospitals offering world-class, affordable care, cutting-edge treatment, and personalized attention to patients

Hospitals and Health Care 馃嚠馃嚦 Kolkata 1,278 1996
11
Eastern Railwayer.indianrailways.gov.in

The company operates a railway network with a history dating back to 1854, covering various divisions and connecting different cities in India

Government Relations Services 馃嚠馃嚦 Kolkata 1,245 1952
12
Medica Superspecialty Hospital, Kolkatamanipalhospitals.com

A 400-bed NABH-accredited hospital in Kolkata offering world-class healthcare services, 24脳7 emergency support, and affordable care in a safe, ethical environment

Hospitals and Health Care 馃嚠馃嚦 Kolkata 1,237 2010
13
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

Mining 馃嚠馃嚦 Dishergardh 1,002 1975
14
Desun Hospitalsdesunhospital.com

A group of NABH accredited hospitals in Kolkata & Siliguri, West Bengal, India providing healthcare services to the community

Hospitals and Health Care 馃嚠馃嚦 Kolkata 937 2008
15
ILS Hospitalsilshospitals.com

A healthcare arm of the GPT Group with 4 state-of-the-art multi-specialty hospitals offering quality treatment at affordable rates in eastern India

Hospitals and Health Care 馃嚠馃嚦 Kolkata 875 n/a
16
Suraksha Diagnosticssurakshanet.com

A leading diagnostic chain in Eastern India offering clinical diagnosis services, accredited by CAP, pioneering AI technology in reference lab

Hospitals and Health Care 馃嚠馃嚦 Kolkata 841 1992
17
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

Mining 馃嚠馃嚦 Kolkata 836 1975
18
Peerless Hospital & B K Roy Research Centerpeerlesshospital.com

A premier multispecialty hospital in East India, providing compassionate care with a focus on transparency, affordability, clinical excellence, and ethics

Hospitals and Health Care 馃嚠馃嚦 Pancha Sayar 736 1993
19
Allahabad Bankindianbank.in

A nationalized bank in India, Allahabad Bank was the oldest joint stock bank until its merger with Indian Bank in 2020

Banking 馃嚠馃嚦 Kolkata 713 1865
20
West Bengal State Electricity Distribution Company Limitedwbsedcl.in

A Vidyut Bhavan-based organization in Kolkata, India, responsible for distributing electricity in West Bengal State

Utilities 馃嚠馃嚦 Kolkata 705 2007
21
CK Birla Hospitals, Indiackbirlahospitals.com

Leading healthcare group in India with multiple hospitals offering comprehensive outpatient and inpatient services, performing successful surgeries and critical cardiac procedures

Hospitals and Health Care 馃嚠馃嚦 Kolkata 704 1969
22
Apollo Multispeciality Hospitalsapollohospitals.com

A 700-bedded multispecialty tertiary care hospital in Kolkata, offering technological excellence, complete infrastructure, competent care, and accredited quality healthcare services

Hospitals and Health Care 馃嚠馃嚦 Kolkata 703 2003
23
West Bengal State Electricity Transmission Company Limited (WBSETCL)wbsetcl.in

A government enterprise in West Bengal established in 2007, responsible for transmitting power through substations of various voltage levels and frequently awarded in power sector

Utilities 馃嚠馃嚦 Kolkata 691 2007
24
United bank of Indiaonlinecareer360.in

Indian government-owned financial services company with headquarters in Kolkata, offering banking services through 35 regional offices and 2005 branches throughout India

Banking 馃嚠馃嚦 Kolkata 647 n/a
25
Ruby General Hospitalrubyhospital.com

An ISO certified multispeciality hospital with experienced medical staff, advanced technology, emergency services, and a high success rate in major surgeries and procedures

Hospitals and Health Care 馃嚠馃嚦 Kolkata 627 1995
26
The Mission Hospital, Durgapur, West Bengalthemissionhospital.com

A state-of-the-art super specialty hospital with cutting-edge technology, offering a wide range of facilities including advanced operation theatres, critical care units, and specialized mother and child care services

Hospitals and Health Care 馃嚠馃嚦 Durgapur 614 2008
27
Kolkata Port Trustsmp.smportkolkata.in

They are a transportation organization located in Kolkata, West Bengal, India, specializing in port operations and logistics services

Truck Transportation 馃嚠馃嚦 Kolkata 612 n/a
28
GTPL KCBPLgtplkcbpl.com

This company is a joint venture providing cable and internet services to over 2 million subscribers in West Bengal, North Eastern India

Technology, Information and Internet 馃嚠馃嚦 Kolkata 585 2008
29
Bandhan Bank Ltd.bandhanbank.com

A banking and financial services company headquartered in Kolkata, with a widespread presence in India and millions of customers

Banking 馃嚠馃嚦 Kolkata 579 n/a

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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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