| OFFICE | Designation | E-mail Address | CONTACT NO. | |
| Phone | Fax | |||
| OFFICE OF THE REGIONAL MANAGER | ||||
| Jimmy L. Apostol | Regional Manager | r11@nia.gov.ph@gmail.com / niaregion11rim@yahoo.com | 224-0717 | 224-0717 |
| ENGINEERING AND OPERATIONS DIVISION | ||||
| Felizardo A, Go | Division Manager | r11.eod@nia.gov.ph | 225-1805 | 225-1805 |
| 227-3852 | ||||
| Section Heads | ||||
| Maribeth A. Malinao | Planning and Design Section | nia11planning@yahoo.com | ||
| Lani M. Sumabat | Institutional Development Section | |||
| Agustin C. Pedregosa | Equipment Section | |||
| Al Ted D. Abbot | Operations & Maintenance Section | nia11operationsection@gmail.com | ||
| Mae Edullantes | Construction Section | nia11constructionsection@gmail.com | ||
| FINANCE AND ADMINISTRATIVE DIVISION | ||||
| Joel R. Soriano | Division Manager | r11.afd@nia.gov.ph | 224-0718 | |
| Section Heads | ||||
| Blessy O. Taghoy | Finance Section | |||
| Cirila J. Cacanog | Administrative Section | |||
| Irrigation Management Office (I.M.O.) | ||||
| Dexter F. Tinapay | Division Manager | r11.davaodelsur-imo@nia.gov.ph@gmail.com / nia_piodvosur@yahoo.com | 082-5532432 | 082-5532432 |
| 082-5537368 | ||||
| Larry C. Franada | Division Manager | r11.davaodelnorte-imo@nia.gov.ph@gmail.com / davaodelnorte_imo@yahoo.com | 084-6286518 | 084-6286518 |
| Jimmy J. Ceros | Division Manager | r.11davaooriental-imo@nia.gov.ph@gmail.com / davaooriental_imo@yahoo.com | 087-8080062 | 087-8080062 |
| Rona B. Presto | Division Manager | r11.comval-imo@nia.gov.ph@gmail.com / niacompostela@yahoo.com | 0917 895 4930 | |