| iAuditor |
| Microsoft Office Applications |
| Procore |
| Safety Training |
| Safety Auditing |
| ISNetworld |
| Civil Construction - 5 Years |
| Concrete Construction - 5 Years |
| Demolition - 2 Years |
| Drilling Site Construction - 1 Years |
| Electrical Construction - 6 Years |
| LNG Construction - 2 Years |
| Offshore Drilling - 1 Years |
| Petrochemical/Oil Refinery Construction - 5 Years |
| Petrochemical/Oil Refinery Maintenance - 5 Years |
| Pipeline Construction - 1 Years |
| Steel Erection - 5 Years |