Peychaud's :: New Orleans, LA

Boker's Bitters :: discontinued in 1920s, recreated by Dr Adam Elmegirab

Fee Brothers :: Rochester, NY

Bitters, Old Men :: Yorkville, NY

Bittermen's :: New Orleans, LA

Bitter Tears Bitters :: Los Angeles, CA

Hella Bitter Bitters :: Brooklyn, NY

Bittercube Bitters :: Milwaukee, WI

The Bitter Truth :: Germany

Regan's Bitters :: Manhattan, NY

Scrappy's Bitters :: Seattle, WA

Bob's Bitters :: England