Try IC Lighting Limited or Rehmat Lighting Limited, both of them are Cree distributes in the UK. Source: http://www.cree.com/lighting/where-to-buy bottom left corner.
Of course what they have for the international market might be limited: http://www.cree.com/Lighting/Products/International?Input+Voltage=220-240V

Surely someone is making LED bulbs for the European market?