Here's a list of businesses (and their ratings) in the Mobile caterer category.
In England, Wales and Northern Ireland food hygiene ratings are provided by the The Food Hygiene Rating Scheme (FHRS). Ratings in Scotland are provided by a similar scheme called the Food Hygiene Information Scheme (FHIS).
You can read more about FHRS and FHIS food ratings here.
Click on a establishment below for more information:

Total Score: (lower is better)
Browarth, Rams Valley, Hugh Town, St Mary's, TR21 0JX

Total Score: 20 (lower is better)
Crebinick House, Church Street, Hugh Town, St Mary's, TR21 0JT

Total Score: 15 (lower is better)
Shamrock, High Lanes, St Mary's, Isles Of Scilly, TR21 0NW

Total Score: 10 (lower is better)
Oaklands Flower Farm And Campsite, Middle Town, St Martin's, Isles Of Scilly, TR25 0QN

Total Score: 15 (lower is better)