I've developed some Python tools for downloading and comparing Food Hygiene Rating Scheme (FHRS) and OSM data and finding possible matches between it, together with Leaflet slippy maps for visualising the data. I think the FHRS data is a useful source for getting more postcode and address data into OSM, as well as for reminding mappers of local establishments they could map. It is my hope that these tools could help mappers to do this efficiently (rather than importing large amounts of data automatically).
FHRS/OSM comparison maps and statistics for Great Britain – these should hopefully be updated weekly
The code is freely available on GitHub