| Acronym | Definition |
|---|
| ACX➣Atlantic City Expressway (toll road; New Jersey) |
| ACX➣Asynchronous Cross Connect |
| ACX➣Active Control Experts (industrial engineering consultants; Cambridge, MA) |
| ACX➣Available Chemicals Exchange |
| ACX➣Australian Climate Exchange |
| ACX➣Asia Carbon Exchange (Asia Carbon Global) |
| ACX➣Assistant Chief Executive (South Holland, UK) |
| ACX➣Advanced Combat Experimental |