Ultimate Products – surely 80% of the UK households cannot be wrong

Apart from being major retail names, tell me what do the following companies have in common?

Tesco, Asda, Aldi, Sainsburys, Morrisons, B&M, Co-op, B&Q, The Range, Express Gifts, Action SystemeU, Iceland, Boots, Dunnes, The Works, Continente Modelo, Primark, Robert Dyas, Factory Shop, Amazon, Avon, The Range, Homestore and More, JTF, Argos, House of Fraser, The Works, Dunelm, Superdrug, Poundland, AS Watson, Blokker, Gifi, Debenhams, Poundworld, Matalan, JD Williams, Ryman, Shop Direc...