| Acronym | Definition |
|---|
| AECO➣Asociación de Empresas de la Construcción (Spanish construction association) |
| AECO➣Association of Arctic Expedition Cruise Operators (est. 2003) |
| AECO➣Alberta Energy Company (Canada) |
| AECO➣Academic Exchange and Collaboration Office (Hong Kong) |
| AECO➣Accredited Elevator/Escalator Certification Organization |
| AECO➣Aeromedical Evacuation Control Officer |
| AECO➣Advance Engineering Change Order |
| AECO➣Architecture, Engineering, Construction and Owner-operated |