- 1919 : Setting up in Boulogne Billancourt.
- 1921 : First deliveries to PEUGEOT and RENAULT.
- 1968 : A production site is set up in Romorantin (Loir et Cher).
- 1987 : First Aerospace customers.
- 1994 : An OEM logistic centre is opened in La Ferté Saint Aubin (Loiret).
- 1999 : Creation of the Brazilian subsidiary, CAILLAU DO MERCOSUL, in Curitiba, Brazil (today located in Diadema, São Paulo).
- 2004 : AXA Private Equity takes a major stake in Caillau.
- 2006 : A pool of private investors led by ING take a major stake in Caillau.