Nowadays, homebrewers can choose from lots of different yeast strains from various producers and yeast banks. As a reference, I’m putting together all those that I know of and that explicitly cater towards homebrewers. I’m not including commercial or scientific yeast banks because they often do not sell their yeast in homebrewing quantitites for homebrewing prices. Also, if you know of any other places or companies that produce yeast for homebrewers, please let me know in the comments, and I’ll add them to the list.
- White Labs
- Weihenstephan Hefebank sells some of their yeast strains for homebrewers through schnapsbrenner.eu
- Fermentum Mobile
- The Yeast Bay
- RBY Laboratories
- Imperial Organic Yeast
- JasperYeast LLC
- East Coast Yeast
- Bootleg Biology
- RVA Yeast Labs
- Omega Yeast Labs
Another dry yeast supplier I found: Brauwerkstatt
Escarpment Labs has recently started making their yeasts available to homebrewers in Canada.
Brewlab sells slants of a great variety of British yeast strains for GBP 6.00 per slant plus GBP 5.50 shipping within Europe (GBP 2.50 within the UK).