Lufthansa*: Regional (Air Dolomiti | City Airlines) | Discover Airlines | Eurowings | German Airways | Cargo (AeroLogic (50%)¹)
Other group airlines: Austrian Airlines* | Brussels Airlines* | Swiss International Air Lines* (Edelweiss Air) | SunExpress (50%)² | Italia Trasporto Aereo (41%)

Engineering and maintenance
AMECO Beijing (25%)³

Former/defunct
Defunct: Germanwings | SunExpress Deutschland | Lufthansa CityLine | Lufthansa Italia
Divested: Condor

Notes
¹Co-owned by Deutsche Post DHL Group.
²Co-owned by Turkish Airlines*.
³Co-owned by China National Aviation Holding.
*Member of the Star Alliance.