Horseradish
Factsheet about this crop and its uses.
http://www.hort.purdue.edu/newcrop/med-aro/factsheets/HORSERADISH.html

Moringa oleifera
Description and uses of the Horseradish-tree.
http://www.hort.purdue.edu/newcrop/duke_energy/Moringa_oleifera.html

Silver Spring Gardens, Inc.
Award Winning Horseradish, Mustard and Sauces, horeseradish recipes, and ordering information. Taste the Difference!
http://www.silverspringgardens.com/

Gold Pure Food Products Co., Inc.
Horseradish Manufacturers also mustards, ketchups and more.
http://www.goldshorseradish.com/

Morehouse Foods
Morehouse Foods is a manufacturer of premium quality mustards, horseradish, worcestershire sauce, vinegars, and gourmet and specialty condiments for over 100 years. Only the finest ingredients are used to produce our award winning retail brands, foodservice and industrial products, and private label custom formulations.
http://www.morehousefoods.com/

Haus Barhyte, Inc.
Barhyte Specialty Foods provides easy dinner meal recipes, specialty sauces, gourmet mustards, a variety of side dish and sauce recipes. www.barhyte.com
http://www.mustardpeople.com/

Michigan Diagnostics, LLC.
Chemiluminescence-alkaline phosphatase and horseradish peroxidase substrates, chiral compounds, steroids, biotin, antibody, enzyme conjugates substrates from Troy.
http://www.michdiag.com/

Superb Horticulture
Suppliers of products to the fruit, vegetable, nursery, and specialty agriculture markets in the eastern U.S. Group of companies includes Indiana Berry and Plant Co. (different types of berries, rhubarb, asparagus, horseradish, Kiwi, and grapes). Other companies are Hadwin Supply and Berthoud Montana Sprayers.
http://www.inberry.com/