| Numbers | Specialization/Profession/Position | Number of Respondent | Percentage (%) of Respondents |
| 1 | Project Managers | 12 | 7.3 |
| 2 | Project Coordinators | 17 | 10.3 |
| 3 | Foremen | 30 | 18.2 |
| 4 | Site Managers/Officers | 26 | 15.8 |
| 5 | Logistics Managers | 35 | 21.2 |
| 6 | Inventory Managers | 23 | 13.9 |
| 7 | Laborers | 14 | 8.5 |
| 8 | Others | 8 | 4.8 |
|
| TOTAL | 165 | 100 |