| Brahmaputra Valley Fertilizer Corporation Limited | central government | 1 | |
| Brahmos Aerospace | delhi | 1 | |
| Braithwaite & Co. Ltd. | west bengal | 67 | |
| Braithwaite, Burn and Jessop Construction Company Limited | west bengal | 9 | |
| Bridge & Roof Co.(india) Ltd | west bengal | 4 | |
| Brihanmumbai Mahanagarpalika | maharashtra | 2 | |
| Broadcast Engineering Consultants India Limited | uttar pradesh | 3067 | |
| Broadcasting Engineering Corporation of India Limited | delhi | 2 | |
| Building Materials and Technology Promotion Council | delhi | 8 | |
| Bureau of Civil Aviation Security | delhi | 40 | |
| Bureau of Energy Efficiency | delhi | 24 | |
| Bureau of Indian Standards | delhi | 7 | |
| Bureau of Police Research and Development | central government | 394 | |
| Business With National Chemical Laboratory | maharashtra | 1 | |