APTEC acting on its own or together with partners has performed engineering and project management services for various clients in the energy/power sector.
| S/N | Client | Project List (2000 - 2009) |
| 1 | Africano | Transport Study on Commercial Vehicle Local Assembly |
| 2 | SHELL | Afam Power Project |
| 3 | RUSAL | Alscon Due Diligence |
| 4 | FMP&S | Medium Sized Power Plants in the Niger Delta - Consultancy Services 5 Power Stations |
| 5 | STEAG | Tema Cem Power Project, Ghana |
| 6 | FMP&S | NDPHC Overseas Training in Electrical Distribution Systems |
| 7 | PHCN | PHCN Phase II Power Plant Projects in Nigeria, EPC Contractors Evaluation Report |
| 8 | NDPHC | NIPP Phase II Power Plant Projects in Nigeria, Consultancy Services for 4 Power Stations |
| 9 | NDPHC | NDPHC Overseas Training in Power Generation |
| 10 | PB Power | Aba IPP Gas Supply Study |
| 11 | STEAG | Oji River Power Plant (Due Diligence) |
| 12 | NDPHC | Project Consultancy Services for Alaoji CCPP |
| 13 | Zenith | Consultancy Services for Zenith Capital (Independent Engineer) |
| 14 | IPA | Kaduna Hydro Feasibility Study |
| 15 | FMP | Kaduna 150-200MW Dual Fire Power Plant Evaluation Project |
| 16 | FMP | Alscon Surplus Power Utilization Project |
| 17 | EES | Gombe 350MW Coal Fired Power Plant Project Study |
| 18 | Osprey Intl | Integrated Industrial Study Evalution |
| 19 | IPC | Ibom Power Plant Technical Assistance |
