The Front Office is a top management layer in investment companies, above the middle office and the back office.

The Front Office is the place where banks or institutions actually trade.

The Front Office is the middle management like CTO, CIO, COO. 

The Front Office is providing IT support for Middle Office and Back Office.

The Front Office in a bank is the department with First Contact to clients. 

In the Front Office the traders are executing trades.

After a sucessfull trade the Front Office is sending all information to the Backoffice for settlement, and clearing.