Cameroon Guinness Cameroun SA is a 100% owned by Diageo. The company employs about 800 people. Main brands: Guinness FES, Guinness Extra Smooth, Malta Guinness, Gordon's Spark, Harp lager. There are also direct exports of our spirits portfolio, including Johnnie Walker, Smirnoff, Gordon's Gin, Baileys, J&B. Did you know that? > Cameroon is the fifth largest Guinness market in the world.