Below are 5 publicly traded brewers which are NOT either "Big Beer" or Sam Adams, respective ticker symbols and recent share price..
Mendocino Brewing Company - MENB: 0.27
Craft Brew Alliance, Inc - BREW: 7.91
Big Rock Brewery (Canada) - BRBMF: 4.02
American Brewing Co. - ABRW: 0.37
Appalachian Mountain Brewing - HOPS: 3.50
Some contend BREW (Widmer Brothers, Kona, Redhook, Omission) may as well be "Big Beer", as AB InBev owns 32% of the stock. BREW took a minority stake in HOPS, although I'm unsure how much. BREW also distributes beer produced by HOPS.
Ballast Point is distributed in 30 states and 10 countries. When the company goes public, I look for AB InBev to purchase a stake.