| 1909 | | Hugo Reitzel founds at Aigle, in Western Switzerland, his company "Société des Denrées Coloniales", specialized in "overseas commodities" |
| 1986 | | Bernard Poupon takes over the management of Reitzel (Switzerland) and Philippe Reitzel becomes Chairman of the Board of Directors |
| 1987 | | Creation of the Poupon Reitzel Industries holding |
| 1990 | | The company becomes a shareholder of the Turkish company Zey-Tur-San |
| 1994 | | Launch of the Hugo Reitzel brand for Catering in Switzerland |
| 1995 | | Takeover of Conserveries Bésiers at Castelsarrasin (France) |
| 1997 | | Inauguration of the new dressing factory in Switzerland |
| 1999 | | Launch of the new Hugo Reitzel range for Retailing in Switzerland |
| 2000 | | Takeover of the Guy Briand factories at Bourré (France) and creation of a service quality office in Bangalore (India) |
| 2002 | | The group adopts the name Reitzel |
| 2003 | | Creation of Reitzel India |
| 2005 | | Acquisition of the Jardin d'Orante and Olï brands from Lesieur |
| 2005 | | Takeover of the Marseille-based Misrachi International company, which became Reitzel International |
| 2009 | | Reitzel (Suisse) SA Centenary |