I found them on my realtor's website.
I have moved countless times in my life, internationally, within the countries other than the US, and within the US (long- and short-distance). I would say, without any reservation, they are one of the best movers I have ever worked with. It was a small, short-distance move, but if they handle long-distance moves, I am sure they do a great jog for that too.
They were very friendly, courteous, extremely capable, efficient, and very careful with the items.
I got a call from them 10 mins before the appoint time (the appointment was 8:00) to let me know that they were 15 mins behind. That was very nice, as most of moves never do that.
They were also very careful about the safety of the items while we were unloading and bringing the stuff up to the unit. Not just because it is DC, but in general, it is always better to be careful, so nothing gets stolen.
I recommend Georgetown Movers very highly to anyone!