Do the commercial datasets have global coverage, or UK only?

The commercial data spatial coverage is not limited in availability to the UK only. There is data available for areas of interest worldwide. Open a data collection in the map search window of the Resource Catalogue to explore coverage for a specific area of interest. You can do this by drawing a polygon on the map to constrain your search, whereby the item list will only return imagery with footprints overlapping the drawn polygon. Find out more about how to search data collections for spatial coverage of a specific area of interest here.