Lallemand
- http://www.lallemand.com/
- Canadian based producer of yeast and bacteria serving international baking, wine, brewing, food, agriculture, human nutrition and pharmaceutical industries.
Lesaffre Yeast
- http://www.lesaffre.com/
- Producers of yeast, yeast extracts, malt and a variety of bioconversions for the food and animal feed industry.
Levapan
- http://www.levapan.com/
- Specializes in yeast extracts and canned preserves. Company history, products and distribution details.
White Labs
- http://www.whitelabs.com/
- Manufactures liquid yeast for brewers. Includes recipes, yeast database, newsletter, homebrewer information and links, FAQ, and testimonials.