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:

Total Score: (lower is better)

Total Score: (lower is better)
Assaye, 42 Green Lane, Burnham-On-Crouch, Essex, CM0 8PT

Total Score: 5 (lower is better)
10 High Street, Tollesbury, Maldon, Essex, CM9 8RG

Total Score: 15 (lower is better)
Adjacent To Unit 1, Little Mountains Farm, Mountains Road, Great Totham, CM9 8BY

Total Score: 5 (lower is better)