| Road Develoment Authority | Visit for more details |
| Department of Buildings | Visit for more details |
| National Water Supply and Drainage Board. | Visit for more details |
| Ceylon Electricity Board | Visit for more details |
| Ministry of Defense | Visit for more details |
| The Ceylon Petroleum Corporation | Visit for more details |
| Ministry of Health | Visit for more details |
| National Building Research Organisation. | Visit for more details |
| Sri Lanka Railways (SLR). | Visit for more details |
| Urban Development Authority | Visit for more details |
| Mahaweli Authority of Sri Lanka | Click for Visit for more details |
