GATCO represents the professional interests and opinions of those in the air traffic management profession. Membership is open to civil or military air traffic controllers, flight information services officers, aerospace battle managers (weapons) and anyone involved in air traffic management support including non operational positions. GATCO members are employed at units from small general aviation and military airfields to major international airports and en route centres. Members also include UK licensed controllers working abroad.

Membership is also open to the corporate sector which can benefit from GATCO’s wealth of professional and technical expertise and to those that have retired from the profession but maintain an interest.