No particular order on these, focusing on smaller brew pubs, breweries and beer bars (brewery if not otherwise specified). Some have food, some don't. Check their websites/facebook, etc, for more details.
For beer, Total Wine is good, as is Norm's in Vienna, and Whole Foods in Fair Lakes (Fairfax).
VA
A couple of outside the beltway options -
Old Ox Brewing
Ocelot Brewing
Beltway Brewing
Lost Rhino
Tin Cup
Heritage Brewing
Old Bust Head
Forge Brew Works
Bad Wold
Inside the beltway
Capitol City (brew pub)
Port City
Mad Fox (brew pub)
DC
DC Brau
Chocolate City
Atlas Brew Works
3 Stars Brewing Co
Right Proper (Brew Pub)
Blue Jacket
Meridian Pint (Great beer bar)
MD, on the border of DC
Franklin's Country Store (brew pub)