| WATER WORKS CORPORATION /WWC/ | 3,204,669,910 | Amhara |
| MESFIN INDUSTRIAL ENGINEERING PLC | 1,566,780,000 | Addis Ababa |
| MIDROC CONSTRUCTION ETHIOIA PLC | 1,198,790,000 | Addis Ababa |
| KFLEMARIAM EMIY TEGEN | 940,707,418 | Amhara |
| DINI CONSTRUCTION | 825,000,000 | Afar |
| CERS WATER WORKERS P/CONESTRACTION ENTERPRISE | 500,000,000 | Central Ethiopia |
| ELITE GENERAL CONSTRUCTION PARTNERSHIP | 500,000,000 | Somali |
| BIYOW WATER WORK CONSTRUCTION PARTNERSHIP | 500,000,000 | Somali |
| GEMESHU BEYENE CONS TRUCTION PLC | 499,370,000 | Addis Ababa |
| CHINA GEZHOUBA GROUP COMPANY LIMITED ETHIOPIA BRANCH | 428,988,368 | Addis Ababa |
| ORCHID BUSINESS GROUP PLC | 374,061,000 | Addis Ababa |
| IFH ENGINEERING PLC | 373,100,000 | Addis Ababa |
| SAMKET ENGINEERING AND CONSTRUCTIONE PRIVATE LIMITED COMPANY | 294,547,200 | Addis Ababa |
| 276,482,000 | Addis Ababa |
| ASAYE GASHU KASAHUN | 200,000,000 | Amhara |
| FASIKA YIMER ZELELEW | 159,000,000 | Amhara |
| MCG CONSTRUCTION PLC | 139,060,000 | Addis Ababa |
| OVID CONSTRUCTION PLC | 131,300,000 | Addis Ababa |
| MYUNGSUNG INTERNATIONAL DEVELOPMENT PLC | 120,000,000 | Addis Ababa |
| DAVIS AND SHIRTLIFF TRADING ETHIOPIA PLC | 112,354,000 | Addis Ababa |