- Aster Motorcycle Engines of France. These engines were also sold by companies in Italy and Great Britain.
Ateliers de Construction Mecanique l'Aster, 11 Rue des Chaumettes, Saint-Denis, Paris.
- Aster Engineering Co, Wembley. Built French Aster engines under licence, later designing their own which were also named Aster.
- Aster Societá Italiana Motori, Turin, 1906-1908. Sold French Aster engines, and built Aster cars under licence.
- Aster of Spain 1954 to 1957
- Aster Cars, Madrid 2000-2003