| Date | Manager |
| Pre .1898 | George Grant |
| 1898 - 1941 | James Cumming |
| 1941 - 1969 | James Smith |
| 1969 - 1983 | Ernest Sherret |
| 1983 - 1992 | Dennis Malcolm |
| 1992 - 1996 | Willie Mearns |
| 1996 - 2005 | Robert Mac Pherson |
| 2005 - 2006 | Hamish Proctor |
| 2006 - current | Dennis Malcolm |
So many years of whisky making, so few men involved. This short list includes the names of the men selected to oversee the production process and ensure all materials and procedures were of the utmost quality.
And yet, the list is even shorter when you consider Glen Grant’s entire history of master blenders. Over almost 170 years, only four names have been involved: the founding brothers, John and James Grant, James’ son, ‘The Major’ Grant, his grandson, Major Douglas MacKessack and Albert Stephen, who was introduced to Glen Grant by Major MacKessack and worked alongside him.
Albert Stephen continues as Master Blender to this day, continuing a direct line from Glen Grant’s founding fathers to the present and ensuring that the distinctive characteristics and quality of Glen Grant whisky can be enjoyed by a new generation.