| 1 | wapcos ltd. | India | PHPA-I | PHPA Shopping complex, Bjimthangkha, P.O. Box No. 1267, Wangdue | Mr. Arvind Kumar, Project Director. 77775361 |
| 2 | Larsen & Toubro Ltd | India | 1-Dam 2- Taksha & 3-Phuntsholing | PHPA-I, P.O. Box No. 1300, Wangdue | Mr. Neeraj K. Singh, Project Director, 77109044 |
| 3 | Hindustan construction Company | India | 1: Power House 2: TRT 3: BVC Surge Shaft | PHPA-I, P.O.Box No. 130, Wangdue | Mr. Sajith Kumar, Project Manager, 77102255 |
| 4 | Bharat Heavy Electricals Ltd | India | Power House Cavern | PHPA-I, Post Box No. 1322, Dhenthri, Wangdue | Mr. Token Tori, Construction Manager, 77107406 |
| 5 | S.K. Systems Pvt. Ltd(BHEL) | India | Power House Cavern | Bajo, Wangdue | Mr. Sukhveer Singh, 17455895 |
| 6 | Power Mech | India | BVC | PHPA-I, Post Box No. 1322, Dhenthri, Wangdue | Mr. Token Tori, Construction Manager, 77107406 |
| 7 | Fitwell (BHEL) | India | Power House Cavern | PHPA-I, Post Box No. 1322, Dhenthri, Wangdue | Mr. Token Tori, Construction Manager, 77107406 |
| 8 | D.K. Construction Company | Bhutan | Jatshoka | PHPA-I, Jotshokha, Wangdue | Dorji Norbu, Lobesa, Punakha, 17947024 |
| 9 | Lhaki Construction Company | Bhutan | Jatshoka | Lhaki Construction Company | Lhaki Construction Company |
| 10 | Tashi Thuendel Lerig | Bhutan | Bjimthanka | PHPA-I, Bjimthangkha, Wangdue | Sonam Phuntsho, 17697658 |
| 11 | T-Kunzom | Bhutan | Bjimthanka | PHPA-I, Bjimthangkha, Wangdue | Mr. Wangchuk, 77110536 |
