ACR - Aerocenter
ADC - Ad Astra Executive Charter
ADI - Audeli Air Express/Gestair - we already have GES for Gestair, but their website says that they acquired Audeli for their passenger operations, so I'm guessing that this is the operation that they now call Gestair Aviation, and I've found their logo for Gestair Airline, so that's the one I've done
ADM - Andaman Aviation Services
Rod