Gridlink® is the brand name for the joint approach to creating postcode location products. These products relate unit postcodes to geographic areas such as electoral wards and Primary Care Trusts, and also provide postcode grid references. The Gridlink® consortium comprises the Office for National Statistics (ONS), Ordnance Survey, Royal Mail, the General Register Office for Scotland and the Ordnance Survey of Northern Ireland.
In the past, competition between different organisations had led to duplication of effort on postcode products and also to variation in method and inconsistency of the actual outputs. Gridlink® now ensures a standard and consistent approach to postcode referencing products in the UK. It is a good example of an initiative to join up geography.