Mady's Specialty Foods - - Mustard in beer, champagne, and zesty honey flavors, and beer bread mix. Sold by the case, half-case or variety pack. Includes several recipes.
Mean Jean's Mustard - - Homemade in Michigan, featuring flavors such as cranberry, tomato-pesto, raspberry, and jalapeno.
Mendocino Mustard - - Hand-prepared kosher hot and sweet, and beer mustards, also available in gift crates.
The Mount Horeb Mustard Museum - - An extensive selection of mustards, gift boxes, books, mustard making supplies and museum souvenirs.
Napa Mustard Co. - - An assortment of flavors including some made with beer, wine, fruit, garlic, or horseradish.