| Abbreviation | Definition |
|---|---|
| ACQS | Association of Consultant Quantity Surveyors |
| ACSE | Association of Consulting Structural Engineers |
| ACSV | Association of Consulting Surveyors Victoria |
| ADC | Advanced Design Consulting |
| ADC | Art Design Consultants |
| ADCA | Advanced Degree Consulting Alliance |
| ADCC | Access Data Consulting Corp |
| ADCC | Access Data Consulting Corporation |
| AECOM | Architecture Engineering Consulting Operations and Maintenance |
| AFEC | Asia and Far East Consultant |
| AGBC | Akritidis Group Building Consultants |
| AICE | American Institute of Consulting Engineers |
| AICI | Association of Imej Consultant International |
| AISIPA | All India Services information Professional Activity |
| AJCE | Association Of Japanese Consulting Engineers |
| AKBC | Andreas Kernig Building Consultant |
| ALC | Access Livelihoods Consulting |
| AMCAT | Aircraft Maintenance Consultant Assistance Team |
| AMCG | Audimax Management Consulting Group |
| AMCG | Aviation Management Consulting Group |