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Critical infrastructure operators headquartered in India

Tamtam tracks 663 critical infrastructure operators headquartered in India. This list ranks the 100 largest by number of employees on LinkedIn, led by HDFC Bank, Reliance Industries Limited and ICICI Bank. Their median headcount is 16,607. Half of them were founded in 1991 or later. The most common headquarters are Mumbai (51), New Delhi (13) and Chennai (8).

馃嚠馃嚦 India100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
HDFC Bankbank.in

Provides comprehensive financial products and services, including loans, payments, wealth management, and housing finance to individuals and businesses across India.

Banking 馃嚠馃嚦 Mumbai 213,593 1994
2
Reliance Industries Limitedril.com

Company's activities span hydrocarbon exploration and production, petroleum refining, petrochemicals, retail, and telecommunications. Committed to innovation-led, exponential growth.

Oil and Gas 馃嚠馃嚦 Navi Mumbai 200,730 n/a
3
ICICI Bankbank.in

Provides diverse banking products and services to individuals, SMEs, and corporates through branches, ATMs, mobile, internet, and phone channels.

Banking 馃嚠馃嚦 Mumbai 181,145 n/a
4
State Bank of Indiabank.in

Leading public sector bank with extensive branch network, offering specialized financial services to corporates, SMEs, NRIs, and retail customers.

Banking 馃嚠馃嚦 Mumbai 122,721 n/a
5
Axis Bankbank.in

Leading private sector bank offering financial services to corporate, retail, MSME, and agriculture segments through extensive branch network and digital platforms.

Banking 馃嚠馃嚦 Mumbai 99,395 1994
6
airtelairtel.com

Provides global connectivity, developing infrastructure for cutting-edge technologies like 5G, IoT, and enterprise solutions, contributing to 'Digital India' with a vast subscriber base.

Telecommunications 馃嚠馃嚦 Gurugram 99,135 n/a
7
Jiojio.com

It builds future products and services to empower billions of Indians, promoting a digital lifestyle and enhancing communication and connectivity.

Telecommunications 馃嚠馃嚦 Navi Mumbai 99,088 2010
8
Kotak Mahindra Bankkotak.com

Leading financial conglomerate offering banking, stock broking, mutual funds, insurance, and investment services across India and globally.

Banking 馃嚠馃嚦 Mumbai 86,827 1985
9
Life Insurance Corporation of Indialicindia.in

Provides diverse life insurance products including health, pension, ULIPs, group schemes, and micro insurance with extensive agent network.

Insurance 馃嚠馃嚦 Mumbai 73,235 n/a
10
HDB Financial Services Ltd.hdbfs.com

Provides diverse financial lending products like personal, business, and vehicle loans, alongside BPO services such as collection call centers and back-office operations for individuals and businesses.

Financial Services 馃嚠馃嚦 Mumbai 60,142 2007
11
IndusInd Bankindusind.bank.in

Provides consumer and corporate banking services with extensive branch network, advanced technology, and presence in major stock and commodity exchanges.

Banking 馃嚠馃嚦 Mumbai (Maharashtra) 53,614 1994
12
IDFC FIRST Bankbank.in

A leading private sector bank in India, offering a wide range of financial products and services to customers nationwide

Banking 馃嚠馃嚦 Mumbai 52,470 2015
13
HDFC Lifehdfclife.com

Offers individual and group life insurance solutions, including protection, pension, savings, investment, and health plans, customizable with optional riders for diverse customer needs.

Insurance 馃嚠馃嚦 Mumbai 50,795 n/a
14
JSWjsw.in

A diverse $23 billion conglomerate with global operations in steel, energy, minerals, infrastructure, and cement, known for operational excellence and social responsibility initiatives

Manufacturing 馃嚠馃嚦 Mumbai 41,996 n/a
15
Indian Oil Corp Limitediocl.com

Leading energy company specializing in oil refining, distribution, and marketing, ranked among the world's largest corporations globally.

Oil and Gas 馃嚠馃嚦 New Delhi 41,695 1959
16
IndiGo (InterGlobe Aviation Ltd)goindigo.in

Largest Indian airline operating 400+ aircraft, serving 130+ destinations with focus on low fares, punctuality, and customer service.

Airlines and Aviation 馃嚠馃嚦 Gurugram 40,834 n/a
17
YES BANKbank.in

Leading private sector bank offering retail, MSME, and corporate banking services with focus on innovation, security, and sustainability.

Banking 馃嚠馃嚦 Mumbai 40,085 2004
18
Vodafone Idea Limitedmyvi.in

A leading telecom service provider in India offering voice and data services across 2G, 3G, and 4G platforms, committed to delivering delightful customer experiences

Telecommunications 馃嚠馃嚦 Mumbai 38,137 n/a
19
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
20
Bank of Barodabank.in

A top Public Sector Bank with a global presence, offering a wide range of financial products and services to customers worldwide since 1908

Banking 馃嚠馃嚦 Mumbai 36,046 n/a
21
AU SMALL FINANCE BANKaubank.in

A financial institution founded by a Chartered Accountant turned entrepreneur, focused on providing tailored solutions to meet customers' needs

Banking 馃嚠馃嚦 Jaipur 33,256 2017
22
Indian Railwaysgov.in

State-owned national transporter responsible for rail transport in India, operated by the Government of India through the Ministry of Railways Third largest railway network globally

Truck Transportation 馃嚠馃嚦 New Delhi 33,129 n/a
23
Indian Oil Corporation Limited

A national oil company in India involved in the entire hydrocarbon value chain, including refining, transportation, marketing, exploration, production, and petrochemicals

Oil and Gas 馃嚠馃嚦 Mumbai 29,849 n/a
24
Apollo Hospitalsapollohospitals.com

Leading integrated private hospital group in Asia offering healthcare services, insurance, telemedicine, education, pharmacy retail, and medical business process outsourcing with world-class technology

Hospitals and Health Care 馃嚠馃嚦 Chennai 28,238 n/a
25
NTPC Limitedntpc.co.in

India's largest power generation utility, operating across fossil fuels, hydro, nuclear, and renewable energy sources, with a diversified portfolio including consultancy and training services

Real Estate 馃嚠馃嚦 New Delhi 26,494 1975
26
Air India Limitedlinktr.ee

A national airline in India offering domestic and international air transport services for passengers and cargo, with a modern fleet and warm hospitality

Airlines and Aviation 馃嚠馃嚦 Gurugram 25,451 1932
27
Punjab National Bankbank.in

A national bank founded to further India's economic interests, providing services through a technology-driven approach to millions of customers nationwide for over 122 years

Banking 馃嚠馃嚦 New Delhi 25,265 1894
28
Tata Capitaltatacapital.com

Offers diverse financial services including commercial, infrastructure, cleantech finance, wealth management, consumer loans, and Tata Cards distribution across India.

Financial Services 馃嚠馃嚦 Mumbai 25,046 2007
29
Cholamandalam Investment and Finance Company Limitedcholamandalam.com

Provides vehicle finance, home loans, equity loans, SME lending, investment advisory, and stock broking through a network of branches across India.

Financial Services 馃嚠馃嚦 Chennai 24,983 n/a
30
Canara Bankbank.in

Leading Indian bank with extensive geographical reach, diverse clientele, consistent profitability, and a century-long history of growth and innovation.

Banking 馃嚠馃嚦 24,793 1906
31
SBI Life Insurance Co. Ltd.sbilife.co.in

Leading Indian life insurance company offering a wide range of products, dedicated to providing exceptional customer service, enhancing digital experiences, and giving back to society

Insurance 馃嚠馃嚦 Mumbai 24,611 2001
32
SBI Cardsbicard.com

SBI Card offers a wide range of payment products and services to Indian consumers, focusing on simplicity, innovation, and responsible corporate citizenship

Financial Services 馃嚠馃嚦 Gurugram 24,320 n/a
33
Bharat Petroleum Corporation Limitedbharatpetroleum.in

Refining crude oil, marketing petroleum products, with significant presence in upstream and downstream oil and gas sectors, targeting net-zero by 2040.

Oil and Gas 馃嚠馃嚦 Mumbai 23,037 1976
34
Bajaj Lifebajajlifeinsurance.com

Joint venture providing innovative life insurance plans, investment approaches, and diabetic term plans through digital platforms, extensive branch networks, and strategic banking partnerships.

Insurance 馃嚠馃嚦 Pune 22,669 2001
35
Adani Groupadani.com

Diversified infrastructure group with transport logistics and energy utilities, focusing on large-scale development and sustainable growth across India.

Utilities 馃嚠馃嚦 21,480 1988
36
Union Bank of Indiabank.in

Provides comprehensive financial services through a domestic and international network including deposits, advances, and digital banking for retail, MSME, and commercial sectors.

Banking 馃嚠馃嚦 Mumbai 21,188 1911
37
Tata AIA Life Insurancetataaia.com

A leading insurer offering a wide range of life insurance plans with a focus on customer satisfaction, innovation, transparency, and excellence

Insurance 馃嚠馃嚦 Mumbai 20,218 n/a
38
PhonePephonepe.com

Leading digital payments platform with extensive user base, merchant network, and diversified financial services including insurance, lending, and wealth management.

Software Development 馃嚠馃嚦 Bengaluru East 19,702 n/a
39
L&T Financeltfinance.com

A leading NBFC offering loans for Rural, Housing, Two-Wheeler, Personal, and SME with the backing of Larsen and Toubro Ltd

Financial Services 馃嚠馃嚦 Mumbai 19,340 n/a
40
Bharti Airtelairtel.in

Provider of corporate internet leased line connections in India offering various tariff plans and services with speeds ranging from 1Mbps to 10Gbps

Telecommunications 馃嚠馃嚦 Chandigarh 18,840 n/a
41
HDFC Bank Limitedhdfcbank.com

Indian banking and financial services giant headquartered in Mumbai, holding the title of India's largest private sector bank with significant market capitalisation and a large workforce

Banking 馃嚠馃嚦 Mumbai 18,619 n/a
42
Kotak Lifekotaklife.com

The company offers innovative life insurance products to help customers achieve financial independence at every stage of life Contact for policy queries

Insurance 馃嚠馃嚦 Mumbai 18,588 n/a
43
IDBI Bankbank.in

Leading Indian bank providing personal, business, and corporate financial solutions including accounts, loans, credit cards, and accessible digital platforms for diverse customers.

Banking 馃嚠馃嚦 Mumbai 18,406 n/a
44
GMR Groupgmrgroup.in

operates airports, generates energy, develops urban infrastructure, manages transportation, and owns sports teams, all while committing to community development.

Construction 馃嚠馃嚦 New Delhi 18,287 n/a
45
Bajaj General Insurancebajajgeneralinsurance.com

Leading Indian private general insurer, subsidiary of Bajaj Finserv, providing diverse insurance solutions like motor, health, home, pet, and cyber across India.

Insurance 馃嚠馃嚦 Pune 17,664 n/a
46
Bank of Indiabankofindia.bank.in

Established in 1906, this bank offers a wide range of products and services, with over 5100 branches across India and international operations

Banking 馃嚠馃嚦 Mumbai 17,220 1906
47
Ujjivan Small Finance Bankujjivansfb.bank.in

A licensed banking institution focused on serving underserved customers outside the formal banking system through a network of branches nationwide

Banking 馃嚠馃嚦 Bengaluru 17,159 n/a
48
Tata Communicationstatacommunications.com

Provides global digital connectivity and secure enterprise solutions, enabling digital transformation for businesses including Fortune 500 companies worldwide.

Telecommunications 馃嚠馃嚦 Mumbai 16,891 2002
49
Oil and Natural Gas Corporation Ltdongcindia.com

Largest Indian crude oil, natural gas producer. Integrated energy company with exploration, production, refining, petrochemicals, renewables, and global oil and gas properties.

Oil and Gas 馃嚠馃嚦 New Delhi 16,674 1956
50
Aditya Birla Sun Life Insuranceadityabirlacapital.com

A leading life insurance company in India, offering innovative products and industry benchmarks with strong financial backing and customer protection

Insurance 馃嚠馃嚦 Mumbai 16,607 n/a
51
Indian Bankindianbank.bank.in

Offers diverse financial services including deposits, loans, cards, and remittances across India and internationally, serving various customer segments.

Banking 馃嚠馃嚦 Chennai 16,376 1907
52
ICICI Lombardicicilombard.com

Leading private general insurer providing motor, health, and crop policies through digital platforms and traditional branches with extensive claim processing and AI-powered solutions.

Insurance 馃嚠馃嚦 Mumbai 15,889 2001
53
RBL Bankrbl.bank.in

Offering corporate, commercial, retail banking, treasury, and financial market services through extensive branch and ATM network across India.

Banking 馃嚠馃嚦 Mumbai 15,856 1943
54
Star Health and Allied Insurance Co. Ltdstarhl.in

Indian health insurance provider, offering innovative products in health, personal accident, travel insurance, with a focus on customer service and digital transformation.

Insurance 馃嚠馃嚦 Chennai 15,778 2006
55
Manappuram Finance Limitedmanappuram.com

A leading Indian financial institution offering gold loans and various other financial services to empower individuals and uplift communities through innovative solutions

Financial Services 馃嚠馃嚦 Thrissur 15,577 1949
56
Idea Cellular Ltdideacellular.com

Integrated GSM mobile network operator offering 2G and 3G services across India with extensive customer service and network infrastructure.

Telecommunications 馃嚠馃嚦 Mumbai 15,109 n/a
57
IIFL (India Infoline Group)indiainfoline.com

A leading financial services conglomerate in India, with listed entities offering a wide range of financial products and services globally

Financial Services 馃嚠馃嚦 Mumbai 14,727 1995
58
Fortis Healthcarefortishealthcare.com

Integrated healthcare provider operating across the Asia Pacific region with a focus on patient-centric care, offering services in various countries

Hospitals and Health Care 馃嚠馃嚦 Gurugram 14,433 n/a
59
Jana Small Finance Bankjanabank.com

Providing banking services focused on under-banked urban and rural populations, with extensive outreach and digital financial products.

Banking 馃嚠馃嚦 Bengaluru 14,227 2018
60
Reliance Jio Infocom Limitedril.com

Specializing in petroleum refining, marketing, textiles, and infotel services, the company offers a diverse range of products and solutions

Appliances, Electrical, and Electronics Manufacturing 馃嚠馃嚦 Jaipur 14,067 n/a
61
Equitas Small Finance Banklinktr.ee

Community-focused small finance bank providing seamless banking services, promoting financial aspirations, and giving back to communities with fairness and transparency

Banking 馃嚠馃嚦 Chennai 13,993 2007
62
Piramal Financepiramalfinance.com

Financial services firm providing funding in real estate and non-real estate sectors, including housing finance, construction finance, and fiduciary fund management

Financial Services 馃嚠馃嚦 Mumbai 13,675 n/a
63
Reliance Nippon Life Insuranceindusindnipponlife.com

Leading private sector life insurance company in India offering protection, child education, retirement, savings & investment, and health plans

Insurance 馃嚠馃嚦 Mumbai 13,664 n/a
64
TATA Powertatapower.com

One of India's largest power companies, with a focus on sustainable energy generation, transmission, distribution, and clean energy solutions for consumers

Utilities 馃嚠馃嚦 Mumbai 13,591 1915
65
HDFC ERGO General Insurancehdfcergo.com

The company is a leading general insurance provider offering a wide range of insurance products in the retail and corporate sectors with innovative technological solutions for enhanced customer service

Insurance 馃嚠馃嚦 Mumbai 13,251 2002
66
Max Healthcaremaxhealthcare.in

A leading provider of integrated healthcare services in India, offering treatment across 30 specialties with a network of 19 facilities and 4800+ doctors

Hospitals and Health Care 馃嚠馃嚦 New Delhi 13,180 2000
67
Federal Bankfederalbank.co.in

Leading private sector bank providing national banking services, including NRI remittances, with widespread branches, ATMs, and a strong focus on ethics and technology.

Banking 馃嚠馃嚦 Ernakulam 13,128 n/a
68
TVS Credit Services Ltd.tvscredit.com

Providing timely, affordable credit products across various sectors including two-wheelers, used vehicles, consumer durables, and unsecured loans to empower customers.

Financial Services 馃嚠馃嚦 Chennai 13,034 2010
69
Utkarsh Small Finance Bankutkarsh.bank.in

A small finance bank focused on providing banking services to underserved areas, offering a range of loans and digital banking services

Banking 馃嚠馃嚦 Varanasi 12,613 n/a
70
Mahindra Financemahindrafinance.com

A leading non-banking finance entity in India offering vehicle, tractor financing, fixed deposits, SME loans, insurance broking, housing finance, and mutual funds

Financial Services 馃嚠馃嚦 Mumbai 12,157 1991
71
HDFC Limitedhomeloans.hdfc.bank.in

Leading housing finance provider in India, assisting millions to own homes through a strong distribution network and trusted financial services

Financial Services 馃嚠馃嚦 Mumbai 11,864 1977
72
Central Bank of Indiacentralbankofindia.co.in

A pioneer Indian bank offering a wide range of products and services with a large network of branches throughout the country

Banking 馃嚠馃嚦 Mumbai 11,355 1911
73
Air India SATS Airport Services Private Limited (AISATS)aisats.in

A leading gateway services provider in India, offering comprehensive ground handling, passenger assistance, cargo handling, and ramp support services at multiple airports

Airlines and Aviation 馃嚠馃嚦 Mumbai 11,184 2008
74
Department of Posts, Indiaindiapost.gov.in

Provider of high quality mail, parcel, and related services globally, exceeding customer expectations with efficient, reliable, and innovative solutions while prioritizing employee development and social responsibility

Government Administration 馃嚠馃嚦 New Delhi 11,065 n/a
75
Blue Dartbluedart.com

A premier express transportation and distribution company in South Asia, offering secure delivery services across India and globally

Transportation, Logistics, Supply Chain and Storage 馃嚠馃嚦 Mumbai 10,554 1983
76
DCB Bankdcb.bank.in

Offers retail, SME, corporate, agriculture banking, online remittance, fixed deposits, loans, and digital banking services across India.

Banking 馃嚠馃嚦 Mumbai 10,422 1930
77
CMS Info Systemscms.com

Leading business services company in India, offering logistics and technology solutions to banks, retail, and e-commerce sectors, specializing in cash management and banking automation

Business Consulting and Services 馃嚠馃嚦 Mumbai 9,758 n/a
78
Narayana Healthnarayanahealth.org

Leading healthcare provider in India with 21 hospitals, 5 heart centers, and 19 primary care facilities offering specialized medical treatments and services globally

Hospitals and Health Care 馃嚠馃嚦 Bengaluru 9,719 2000
79
Citi Indiaciti.com

Institution offers diverse financial products, services, corporate, commercial banking, brokerage, treasury, trade, securities, fund services, and offshoring for technology, processing, analytics, financial processes.

Financial Services 馃嚠馃嚦 Mumbai 9,469 1902
80
AIIMS (All India Institute of Medical Sciences, New Delhi)aiims.edu

Established as a center of excellence in medical education and research, focusing on training highly qualified healthcare professionals and promoting self-sufficiency in post-graduate medical education

Hospitals and Health Care 馃嚠馃嚦 New Delhi 9,381 1956
81
GAIL (India) Limitedgailonline.com

Largest natural gas company in India with operations in transmission, marketing, processing, LPG, petrochemicals, city gas, and exploration.

Oil and Gas 馃嚠馃嚦 New Delhi 9,153 1984
82
Indus Towers Limitedindustowers.com

A telecommunications tower company in India with a vast network, providing affordable and reliable services for leading telecom service providers

Telecommunications 馃嚠馃嚦 Gurugram 9,016 n/a
83
Niva Bupa Health Insurancenivabupa.com

A health insurance joint venture aiming to empower customers with knowledge and services, building long-term relationships to instill confidence in accessing healthcare

Insurance 馃嚠馃嚦 New Delhi 8,282 2008
84
SBI General Insurancesbigeneral.in

A rapidly growing company with 139+ branches in India, serving over 10 crore customers through diverse distribution channels, offering various insurance products for different customer segments

Insurance 馃嚠馃嚦 Mumbai 8,231 2009
85
Medantamedanta.org

A leading multi-super specialty institute in India, focused on providing high standards of medical care, research, education, and training

Hospitals and Health Care 馃嚠馃嚦 Gurgaon (National Capital Region - Delhi) 8,206 2009
86
New India Assurancenewindia.co.in

Multinational general insurance company providing insurance services to individuals and businesses worldwide

Insurance 馃嚠馃嚦 Mumbai 8,014 1919
87
Kotak Neokotaksecurities.com

An established equity brokerage in India, offering opportunities in capital markets, smart technology, and insightful research for successful investments

Capital Markets 馃嚠馃嚦 Mumbai 7,959 1994
88
Reserve Bank of India (RBI)rbi.org.in

This organization is the central bank of India, overseeing monetary policy and regulating the country's financial system through various online platforms

Banking 馃嚠馃嚦 Mumbai 7,902 1935
89
Airports Authority of Indiaaai.aero

A national organization managing and developing civil aviation infrastructure, including airports and air space, serving millions of passengers and aircraft annually

Airlines and Aviation 馃嚠馃嚦 New Delhi 7,845 1995
90
Poonawalla Fincorppoonawallafincorp.com

Providing transparent, quick, and hassle-free loan and insurance solutions with competitive rates and flexible terms across India.

Financial Services 馃嚠馃嚦 Mumbai 7,771 1989
91
INDIAN OVERSEAS BANKiob.bank.in

Government-backed public sector bank providing financial services with majority ownership from the Government of India

Banking 馃嚠馃嚦 Chennai 7,711 1937
92
Axis Bank Limitedaxis.bank.in

Provides diverse financial services to large corporations, small businesses, and retail clients across India as the nation's third largest private sector bank.

Banking 馃嚠馃嚦 Mumbai 7,588 n/a
93
Shriram City Union Finance Limitedshriramfinance.in

A leading retail NBFC providing credit solutions for various types of loans to individuals and small businesses, focused on transformation and customer satisfaction

Financial Services 馃嚠馃嚦 Chennai 7,534 1986
94
PNB MetLife India Insurance Co. Ltdbit.ly

A leading life insurance company in India, offering protection and retirement products through strong bank partnerships and a wide distribution reach

Insurance 馃嚠馃嚦 Mumbai 7,529 2001
95
Adani Poweradanipower.com

A leading thermal power producer in India with a total capacity of 12,410 MW, utilizing technology and innovation to ensure affordable electricity for all

Utilities 馃嚠馃嚦 Ahmedabad 7,434 2006
96
Dr Lal PathLabslalpathlabs.com

Leading diagnostic service provider with over 190 labs and 2000 centers across India, offering a wide range of tests in various disciplines

Hospitals and Health Care 馃嚠馃嚦 Gurugram 7,353 1949
97
Reliance General Insurancereliancegeneral.co.in

A leading private general insurance company in India offering customized insurance products for corporate, SMEs, and individuals with innovative policies and nationwide presence

Insurance 馃嚠馃嚦 Mumbai 7,349 n/a
98
ICICI Securitiesicicidirect.com

A leading digital financial platform in India offering a wide range of products and services, including investments, protection, borrowing, and more

Financial Services 馃嚠馃嚦 Mumbai 7,322 2000
99
PNB Housing Finance Limitedpnbhousing.com

A leading public sector housing finance company offering competitive home loans, non home loans, deposits, and modern financial services with strong safety ratings

Financial Services 馃嚠馃嚦 New Delhi 7,183 1988
100
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

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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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