| 1946 | Founding of the company by Mr. Henri Bonneville who was later joined over the years by four of his sons. |
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| 1957 | Purchase of a building supply store that became in 1976 "Matériaux Decoren". |
| 1963 | Incorporation of the company under the name of:"Henri Bonneville & Fils Inc." |
| 1967 | Acquisition of the family business by the four sons. |
| 1978 | Acquisition of "Materiaux St-Isidore Inc." A building supply store. |
| 1979 | Reorganization of the strategy towards distribution. |
| 1986 | Acquisition of "Fenebec", manufacturer of aluminum windows and doors. |
| 1987 | Modification of the corporate structure under the name of "Groupe Bocenor Inc.". On June 15th 1987, it became a public company whose shares are traded at the Montreal Stock Exchange under the name Bocenor (GBO). |
| 1988 | Acquisition of "Les Industries Unik Ltée", manufacturer of windows and doors that also had a subsidiary of kitchen cabinets. At that time Groupe Bocenor Inc. became the largest window manufacturer in Quebec and the second largest in Canada. |
| 1992 | Groupe Bocenor Inc. changes its global strategy in focusing its operations and keeping three of it's divisions namely Bonneville Windows and Doors, Fenebec and Matériaux St-Isidore. |
| 1994 | Groupe Bocenor Inc. makes a first step into United States market and opens Bonneville International Inc.. |
| 1996 | 50th Anniversary of Bonneville Windows and Doors. Also, sees the arrival of a new partner. A major investement firm, the Quebec Solidarity Fund, becomes a major shareholder of Groupe Bocenor. |
| 2000 | Bonneville Windows and Doors upgrades all of it's information system and opens an architectural + sales office in East Longmeadow MA. |
| 2001 | Bonneville Windows and Doors undertakes the vertical integration of it's activities. |
| 2006 | Bonneville Windows and Doors celebrates it's 60th Anniversary. New equipement is bought for it's cutting system, a new Wood multipoint lock casement is developed and as well as a new Alumhybrid casement. A brand new web site is developed. |
| 2007 | Groupe Bocenor Inc. parent corporation change its corporate name to GBO Inc. |
| 2008 | GBO Inc. common shares are from now on traded on the TSX Venture Exchange market. |
