| 1971 | Green Label Foods founded by Miriam and Maurice Buchanan at Debach in Suffolk |
| 1980 |
The Gressingham Duck was first bred using strains of wild Mallard in the village of Gressingham near Lancaster |
| 1989 |
The Buchanan family first began rearing and processing Gressingham Duck |
| 1996 | The Buchanan Family bought the exclusive right to breed Gressingham Ducks |
| 2003 | William and Geoffrey Buchanan (sons of the founders) become Managing Directors of Gressingham Foods |
| 2005 | Winner, Best New Poultry Product at the Meat Industry Awards |
| 2005 | Winner, East Anglian Daily Times, Business of the Year |
| 2006 | Green Label Foods changes name to Gressingham Foods |
| 2007 |
Launch of new brand identity |
| 2007 | Gressingham Foods completes the purchase of Norfolk Button Farms, a production site in Redgrave, Suffolk, and the MFD and Breckland Ducks farm brands. |
| 2008 | Gressingham Foods completes purchase of East Farm, Horsham St Faiths, Norwich, a site dedicated to free–range duck production. |
