| Name | Industry | Sector | Headquarters | Founded | Notes | Status |
| 63 Moons Technologies | Technology | Software | Mumbai | 1988 | Financial technology | P | A |
| Aban Offshore | Energy | Oil & gas offshore drilling & other services | Chennai | 1986 | Oil, petrochemical | P | A |
| ABG Shipyard | Industrials | Shipbuilding | Ahmedabad | 1985 | Ship building | P | A |
| ABP Group | Consumer services | Broadcasting & entertainment | Kolkata | 1922 | Media, news | P | A |
| ACC | Industrials | Cement | Mumbai | 1936 | Cement | P | A |
| ACG Group | Industrials | Machinery: specialty | Mumbai | 1961 | Pharmaceutical industry machinery & medicinal materials manufacturer | P | A |
| Acko General Insurance | Insurance | Full line insurance | Mumbai | 2016 | Insurance | P | A |
| Action Construction Equipment | Industrials | Machinery: construction & handling | Faridabad | 1995 | Bulldozers, cranes | P | A |
| Action Group | Conglomerate | — | New Delhi | 1972 | Apparel, chemicals, retail, steel | P | A |
| Adani Group | Conglomerate | — | Ahmedabad | 1988 | Conglomerate | P | A |
| Adani Power | Utilities | Alternative electricity | Mumbai | 1910 | Thermal & solar power generation, part of Adani Group | P | A |
| Aditya Birla Fashion and Retail | Retail | Apparel retailers | Mumbai | 1997 | Clothing retailer | P | A |
| Aditya Birla Group | Conglomerate | — | Mumbai | 1857 | Agribusiness, cement, chemicals | P | A |
| Ador Group | Conglomerate | — | Mumbai | 1977 | Electronics, energy, chemicals | P | A |
| Advanced Weapons and Equipment India | Industrials | Defense | Kanpur | 2021 | Weapons | S | A |
| Afcons Infrastructure | Industrials | Construction | Mumbai | 1959 | Constructions | P | A |
| Agriculture Insurance Company of India | Insurance | Full line insurance | New Delhi | 2002 | Insurance | S | A |
| Air Costa | Consumer services | Airlines | Vijayawada | 2013 | Defunct 2017 | P | D |
| Air India | Consumer services | Airlines | New Delhi | 1932 | Airline, part of Tata Sons | P | A |
| Air India Express | Consumer services | Airlines | Kochi | 2005 | Low-cost airline, part of Air India | P | A |
| Ajanta Group | Conglomerate | — | Ahmedabad | 1971 | Textile, transport, construction machinery | P | A |
| Alkem Laboratories | Health care | Pharmaceuticals | Mumbai | 1973 | Pharma | P | A |
| Allcargo Logistics | Industrials | Industrial transportation | Mumbai | 1993 | Logistics & transportation | P | A |
| Amartex | Basic materials | Textile products | Gurugram | 1984 | Textiles | P | A |
| Ambuja Cements | Industrials | Cement | Mumbai | 1983 | Cement | P | A |
| Amrutanjan Healthcare | Health care | Ayurvedic producers | Chennai | 1893 | Alternative medicines | P | A |
| Amul | Consumer goods | Food products | Anand | 1946 | Dairy | P | A |
| Angel One | Financials | Investment services | Mumbai | 1996 | Stock broker | P | A |
| Apar Industries | Industrials | Engineering & Industrial products | Mumbai | 1958 | electrical conductors, cables, transformer oils, lubricants | P | A |
| Apollo Hospitals | Health care | Health care providers | Chennai | 1983 | Hospital chain | P | A |
| Apollo Tyres | Consumer goods | Tires | Gurugram | 1972 | Tyres, parts | P | A |
| Aptech | Industrials | Business training & employment agencies | Mumbai | 1986 | Training | P | A |
| Archies | Retail | Specialty retailers | New Delhi | 1979 | Greeting cards | P | A |
| Arise India | Consumer goods | Consumer electronics | Delhi | 1995 | Electrical goods, home appliances | P | A |
| Armoured Vehicles Nigam | Industrials | Defense | Chennai | 2021 | Armoured military vehicles | S | A |
| Artemis Hospital | Health care | Health care providers | Gurugram | 2007 | Hospitals | P | A |
| Arvind | Conglomerate | — | Ahmedabad | 1931 | Clothing, engineering, real estate | P | A |
| Ashok Leyland | Industrials | Commercial vehicles & parts | Chennai | 1948 | Bus, trucks, defense vehicles, joint venture of Hinduja Group & Nissan (Japan) | P | A |
| Asia MotorWorks | Industrials | Commercial vehicles & parts | Mumbai | 2002 | Trucks | P | A |
| Asian Paints | Industrials | Paints and coatings | Mumbai | 1942 | Paints | P | A |
| Atul | Chemicals | Chemicals: diversified | Ahmedabad | 1947 | Integrated chemicals | P | A |
| Atul Auto | Consumer goods | Automobiles | Rajkot | 1970 | Auto-rickshaws | P | A |
| Avantha Group | Conglomerate | — | New Delhi | 1919 | Chemicals, I/T, BPO | P | A |
| Axis Bank | Financials | Banks | Ahmedabad | 1993 | | P | A |
| Bajaj Auto | Consumer goods | Automobiles | Pune | 1945 | Motorcycles, part of Bajaj Group | P | A |
| Bajaj Group | Conglomerate | — | Pune | 1945 | Motorcycles, financial services, electricals, sugar, iron & steel, insurance, consumer goods | P | A |
| Balaji Telefilms | Consumer services | Broadcasting & entertainment | Mumbai | 1994 | Film production | P | A |
| Balaji Wafers | Consumer goods | Food products | Mumbai | 1975 | Potato chips | P | A |
| Ballarpur Industries | Basic materials | Paper | Gurugram | 1945 | Paper | P | A |