Green Jem are centrally based in a state of the art distribution and warehouse complex in Gainsborough, North Lincolnshire. We have parking available on site and are just a short distance from the A1 and M1 motorways. Enter your postcode into the search box below the map to find directions to us. For satellite navigation, enter the postcode DN21 1QB. Alternately, call us on 01427 811144 and we'll be glad to guide you to us. To find directions to us, please enter your postcode into the box below the map.