I’m in the Washington, DC area. These are businesses where I know the owner, have used the classroom facilities, and have purchased supplies. They’re all good folks, in my experience. I add current contacts to my Links list on the bottom of each page; you may find new additions there.
103 S. Carroll Street,Frederick,MD 21701
closed Wednesdays and Sundays. Has rentable brewing space on premises.
6770 Oak Hall Lane, Suite 115,Columbia,MD 21045
410-290-3768 or 888-BREW-NOW
closed Mondays and Tuesdays
Some of my favorite Online Suppliers (my apologies to anyone I’ve left out):
Butler Winery (homebrew supplies)