| Brahmaputra Valley Fertilizer Corporation Limited | central government | 1 | |
| Brahmaputra Valley Fertilizer Corporation Limited | assam | 5 | |
| Brahmos Aerospace | delhi | 1 | |
| Braithwaite & Co. Ltd. | west bengal | 6 | |
| Braithwaite, Burn and Jessop Construction Company Limited | west bengal | 2 | |
| Bridge & Roof Co.(india) Ltd | west bengal | 2 | |
| Brihanmumbai Mahanagarpalika | maharashtra | 1 | |
| Broadcast Engineering Consultants India Limited | uttar pradesh | 91 | |
| Bureau of Civil Aviation Security | delhi | 1 | |
| Bureau of Energy Efficiency | delhi | 17 | |
| Bureau of Indian Standards | delhi | 6 | |
| Bureau of Police Research and Development | central government | 11 | |
| Business With National Chemical Laboratory | maharashtra | 200 | |