| Sun Express Aviation Inc. Headquarter: Antalya Partnership structure:50% Turkish Airlines - 50% Lufthansa | ![]() | Sun Express Deutschland GMBH Headquarter: Germany Partnership structure: 50% Sun Express - 50% DLP Stiftung | ![]() | Air Albania SHPK Headquarter: Arnavutluk Partnership structure: 49% Turkish Airlines - 41% MDN Investment 10% Albcontrol |
![]() | We Word Express Ltd. Headquarter: Hong-Kong Partnership structure: 45% Turkish Airlines International Investment Transportation - 45% ZTO Express 10% PAL Air | ![]() | Turkish Airlines International Investment and Transportation Inc. Headquarter: Istanbul Partnership structure: 100% Turkish Airlines |
| Turkish Airlines Technical Inc. Headquarter: Istanbul Partnership structure: 100% Turkish Airlines | ![]() | Pratt&Whitney Turkish Airlines Technical Aircraft Engine Maintenance Mrkz. Ltd. Co. Headquarter: Istanbul Partnership structure: 51% PW - 49% Turkish Airlines | ![]() | Goodrich & Turkish Airlines Technical Service Center Ltd. Co. Headquarter: Istanbul Partnership structure: 60% Goodrich - 40% Turkish Airlines Technical Inc. |
| TCI Cabin Interior Systems San. ans Tic. Inc. Headquarter: Istanbul Partnership structure:50% Turkish Airlines - 50% TAI | ![]() | Aircraft Seat Production San. and Tic. Inc. Headquarter: Istanbul Partnership structure: 50% Turkish Airlines - 50% Assan Hanil | ![]() | TSI Incorporation Headquarter: ABD Partnership structure: |
![]() | Cornea Aviation Systems Industry and Trade Inc. Headquarter: Istanbul Partnership structure: 80% Turkish Airlines Technical Inc. - 20% Havelsan |
| Turkish Airlines Opet Aviation Fuels Inc. Headquarter: Istanbul Partnership structure: 50% Turkish Airlines - 50% Opet | ![]() | Kuzey Tankercilik Inc. Headquarter: Istanbul Partnership structure: 100% THY Opet | ![]() | Güney Tankercilik Inc. Headquarter: Istanbul Partnership structure: 100% THY Opet |
![]() | Turkish Airlines Do&Co Catering Services Inc. Headquarter: Istanbul Partnership structure: 50% Turkish Airlines - 50% Do&Co | ![]() | TGS Ground Handling Inc. Headquarter: Istanbul Partnership structure: 50% Turkish Airlines - 50% Havaş | ![]() | Turkish Airlines Flight Training and Airport Operation Inc. Headquarter: Aydın Partnership structure: 100% Turkish Airlines |