| Cegin Cymru (Welsh Kitchen) | Sell a range of Mustards. OL |
| Cottage Delight Ltd | Nice range of Mustards. OL |
| Cranfields Foods online only |
Produce Barum Mustard, a wholegrain mustard with the added flavour of beer from the Barum Brewery. OL |
| Croft House Bakery Grasmere Village, Cumbria |
Good range of Mustards including the award winning Roman mustard. OL |
| Elizabethan England | Offer range of Mustards based on genuine 16th century recipes. OL |
| Gordons Condiments | Huge range of Mustards. MO |
| Harpers | Range of traditional English Mustards. OL |
| Holly and the Ivy online only |
Have an interesting range of mustards including Cajun Spiced, Chilli, Famous Grouse and Green Peppercorn. OL |
| Hot-Headz | Range of chile based mustards. OL |
| Just Mustard | Looking for a particular mustard, this has to be the place to start. OL |
| Kathy's Cornucopia | Have a small range of grain Mustards, all sweetened with Scottish honey. MO |
| Pantry Preserves | Offer a small range of interesting Mustards. MO |
Pick Your Own  online only |
The online shop for Wilkin & Sons. Have a couple of organic Mustards in their range; Chilli and Hot English. OL |
| Provender Delicatessen | Sell a small range of quality Mustards. OL |
| Shaken Oak | Buy quality mustards direct from the makers. OL |
| The Cornish Cyder Farm | Small range of interesting Mustards. OL |
| The Hawkshead Relish Company | Offer a range of traditional and speciality Mustards. OL |
| The Tracklement Company | Offer a large range of interesting Mustards. MO |
| Ty Mel Fine Fayre | Offer Welsh Honey Mustards with Chillies, Orange or Whisky. MO |
