Here's a list of businesses (and their ratings) in the Manufacturers/packers 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:
UNIT 12, Farfield Road, Sheffield, S3 8AB

Total Score: 15 (lower is better)
UNIT 6 Farfield Road, Neepsend, Sheffield, S3 8AA

Total Score: 20 (lower is better)
Unit 7, Derwent Street, Sheffield, S2 5BN

Total Score: 15 (lower is better)
488 Fulwood Road, Sheffield, S10 3QD

Total Score: 25 (lower is better)
Units 12 And 13 Carbrook Hall Industrial Estate, Dunlop Street, Sheffield, S9 2HR

Total Score: 20 (lower is better)