1, The full form of ESB is Electricity Supply Board. It’s used on Governmental ,Firms & Organizations in Ireland

Electricity Supply Board (ESB) is a semi-state electricity company in Ireland. It is a statutory corporation whose members are appointed by the Government.

2, The full form of ESB is Enterprise Service Bus. It’s used on Computing ,Sofware & Applications in Worldwide

Enterprise Service Bus (ESB) is a software architecture model used for designing and implementing the interaction and communication between mutually interacting software applications in Service Oriented Architecture.

3, The full form of ESB is Extra Special Bitter. It’s used on Miscellaneous ,Chat slang in United States

The term pale ale is used in Scotland though ESB (for “Extra Special Bitter”) is more commonly used in the United States. Where bitter is used it indicates a pale ale of lower alcohol content brewed in a less hop-focused style than typical American pale ales.