| Abbreviation | Definition |
|---|---|
| MYSTIC | More You Strategy Towards Image Consulting |
| NAC | National Administrative Consultant |
| NACS | North American Consulting School |
| NBCL | Northern and Bristol Consulting Limited |
| NC | Nutrition Consultant |
| NCCG | Neil Cameron Consulting Group |
| NCCG | Nu Chapter Consulting Group |
| NCE | Nichols Consulting Engineers |
| NCE | Northland Consulting Engineers |
| NCG | Consulting Group |
| NCG | Nicholas Consulting Group |
| NCG | Nittany Consulting Group |
| NCG | Nobles Consulting Group |
| NCHD | Non-Consultant Hospital Doctor |
| NCI | Navigant Consulting Inc |
| NCI | Network Consulting Inc |
| NCIP | National Consultant Information Programme |
| NCO | Network Consulting and Outsourcing |
| NCS | National Consulting Service |
| NCSI | Network Consulting Services inc |