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The Tata Group () is an Indian multinational conglomerate headquartered in Mumbai. Established in 1868, it is India's largest business conglomerate. Tata Group comprises numerous affiliate companies, with Tata Sons as the holding company and promoter. As of August 2025, there are 29 publicly listed affiliate companies, with a combined market capitalisation of ₹37.84 trillion (US$446 billion).
| Company | Major subsidiaries | Equity stake |
| Aerospace and defence | ||
| Tata Advanced Systems | Tasec | 100% |
| Information technology | ||
| Tata Consultancy Services (TCS) | TRDDC | 72.27% |
| Tata Elxsi | 42.22% | |
| Steel | ||
| Tata Steel | Tata Steel Netherlands Tata Steel UK Tata Steel Thailand Tata Robins Fraser Ltd.(TRF) Mjunction Jamshedpur FC | 32.46% |
| Electrical and electronics | ||
| Tata Electronics | 100% | |
| Voltas | Universal MEP Projects & Engineering Services | 26.64% |
| Energy | ||
| Tata Power | Tata Power Solar Nelco Limited (50.04%) Maithon Power Tata Power Delhi Distribution TP Central Odisha Distribution TP Western Odisha Distribution TP Northern Odisha Distribution | 45.21% |
| Engineering and construction | ||
| Tata Projects | 100% | |
| Tata Consulting Engineers | 100% | |
| Real estate | ||
| Tata Housing | 100% | |
| Tata Realty and Infrastructure | 100% | |
| Automotive | ||
| Tata Motors Passenger Vehicles | Jaguar Land Rover | 46.40% |
| Tata Motors | Tata Technologies Tata Daewoo Tata Hispano Tata Hitachi Construction Machinery | |
| Tata AutoComp Systems | 100% | |
| Tata International Vehicle Applications | 100% | |
| Chemicals | ||
| Tata Chemicals | Tata Chemicals Europe Rallis India British Salt Magadi Soda Company Tata Swach | 31.90% |
| Retail and e-commerce | ||
| Trent | 32.45% | |
| Tata Digital | BigBasket (68%) Tata 1mg (55%) Tata Neu Tata Cliq Cromā Tata nexarc | 100% |
| Titan Company | 25.02% | |
| Consumer goods | ||
| Tata Consumer Products | Tata myBistro Tata Starbucks (50%) | 29.39% |
| Financial services | ||
| Tata Capital | 85.41% | |
| Tata Asset Management | Tata Mutual Fund | 100% |
| Tata AIG | 51% | |
| Tata AIA Life | 51% | |
| Tata Investment Corp | 68.51% | |
| Tourism and travel | ||
| Indian Hotel Company | Taj Hotels Vivanta Ginger | 38.43% |
| TajAir | 100% | |
| Air India Limited | Air India Air India Express Air India SATS Airport Services (50%) | 74.9% |
| Telecom and media | ||
| Tata Communications | Tata Communications Canada | 31.90% |
| Tata Teleservices | 19.58% | |
| Tata Play | 60% | |
| Tejas Networks | 52.40% | |
| Trading and distribution | ||
| Tata International Group | Feetscience Tagra | 100% |
| Medical devices | ||