Here is the list of yarn dyers from where I regularly source my yarn
Small Batch Dyers
Bad Sheep Yarn is my preferred source. Their colors are brilliantly saturated and they come up with some great variegated tones.
Hue Loco is a great dyer local to me that does small pot batches on a periodic basis throughout the year. You have to act quick to get their popular colors.
Commercial Yarns
Hobbii – A great place to find several different types of yarn at moderately affordable prices.
WEBS – A source for yarn and patterns.
KnitPicks – In addition to yarn, their interchangeable needle set is pretty great.
Bandit Fiber Arts 