| Organization | Type of aggregate | Quarry location |
| Owerri Sand/Gravel Association | River sand/gravel | Nekede and Ihiagwa (Owerri West LGA) |
| Bathoway Dredging | River sand | Nekede |
| S. O Amadi and Co | Sand/gravel | Nekede |
| Electroshed Dredging | Sand/gravel | Nekede |
| Awomamma Sand/Gravel association | Sand/gravel | Awomamma (Oru East LGA) |
| Okwudor Sand/Gravel Association | Sand/gravel | Okwudor (Njaba LGA) |
| Ikperejere Crushed Rock Association | Sandstone | Ikperejere (Ihite Uboma LGA) |