| Abbreviation | Definition |
|---|---|
| ACE | Alliance for Climate Education |
| ACE | Altamont Corridor Express |
| ACE | alternatives for community and environment |
| ACE | Amazing Customer Experience |
| ACE | American Council on Exercise |
| ACE | App Configuration for Enterprise |
| ACE | Application Control Engine |
| ACE | Ask Care and Escort |
| ACE | Association for Consultancy and Engineering |
| ACE | Association of Community Employment |
| ACE | Average Current Earnings |
| ACE | Cash Express |
| ACEA | Alabama Christian Education Association |
| ACEA | Association des Constructeurs Europ??ens d'Automobiles |
| ACEA | Austin Contractors Engineers Association |
| ACEB | Asociacion de Comerciantes y Empresarios de Benalmadena |
| ACEBRD | Acebird |
| ACEC | Atelier de Constructions Electriques de Charleroi |
| ACEC | Ateliers de Constructions Electriques de Charleroi |
| ACED | Antwerp Centre of Evolutionary Demography |