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Cadcorp is a British software development company focused on geographic information system and web mapping software. We offer a complete suite of products – the Cadcorp Spatial Information System® (Cadcorp SIS®) – addressing all phases of spatial information management.

Cadcorp SIS is available worldwide through a network of Cadcorp partners and through direct sales in the UK and Ireland. Cadcorp helps organisations maximise their return on investment in geographic information by making it easier to share and distribute spatial data between people and between systems. We achieve this by developing geospatial products that incorporate open and standards-based technologies.


Cadcorp has supported Ordnance Survey data for over 20 years, as part of the Cadcorp SIS® core product portfolio. Wherever possible this data is read out-of-the-box, without translation, or pre-processing. National datasets are displayed instantly.

Where vector formats require loading into a spatial database (PostGIS, Microsoft SQL Server®, Oracle® or Cadcorp ODB), this is accomplished using management tools, which Cadcorp provides free of charge with the software.

Cadcorp also provides sophisticated products to analyse, manipulate, display and use Ordnance Survey data. This includes multi-user and multi-vendor data support through an OGC®-compliant web map server, and associated applications.

See how Cadcorp SIS supports Ordnance Survey data