The IAM Jet Centre at Barbados airport is a private terminal for general aviation and VIPs.
British Airways First Class passengers may use the IAM Jet Centre on a complimentary basis when arriving at and departing from Barbados airport. Arriving passengers are driven to the terminal and go through a private immigration checkpoint. Departing passengers benefit from a dedicated check-in desk and security checkpoint, a comfortable space to wait for their flight with snacks and drinks, and a car ride to the aircraft.
Ask your driver to drop you off at the IAM Jet Centre, which is a signposted standalone building in the vicinity of the main terminal.
Note that British Airways business class and elite passenger may not use the IAM Jet Centre, but have access to the Executive Lounge in the main terminal.
