Electra Trans Global, also known as ETG Maintenance, is an EASA Part-145 civil aviation maintenance organisation. The company has technical bases in Bulgaria, Israel, Italy and Poland. It has been approved by the Civil Aviation Administration DG to perform all types of base and line maintenance on Airbus 320 CEO, Boeing 737 Classic/NG and MD-80 Series aircraft. ETG Maintenance is certified and meets the standards of the European Union Aviation Safety Agency (EASA).

The main technical base is located at Varna Airport, but the company also has bases for linear maintenance in Sofia, Burgas, Katowice, Tel Aviv, Prague and Catania.