Numerous insurance companies operate from Gibraltar. Like banks, some are licensed by Gibraltar and thus fully regulated by Gibraltar's FSC (Financial Services Commission), while others are authorised and regulated by the EEA (European Economic Area) state to which they belong.

Gibraltar's Financial Services Commission is the body that regulates the finance sector. It was set up by an ordinance in 1989, which came into effect in 1991, setting up this commission as a statutory body.

The Commissioner is appointed by Gibraltar's Governor and is responsible to:

Currently more than 20 banks are either represented in Gibraltar or actually authorised or licensed to provide full banking services. This area's banking sector represents more than 4.5 billion pounds sterling in assets.

Banks fall into three main categories:

Four of the top five international accountancy firms in the world are established in Gibraltar. There are also many other international and local accountancy firms based in Gibraltar.