About Us

Our mission is to be the Electrical Distributor of Choice for our customers, our employees, and our suppliers. We will achieve our mission by being: accountable, respectful, ethical, profitable, and professional.


CapitalTristate provides electrical products, lighting, and services to contractors, builders, and end-users in the Mid-Atlantic States.

We service our customers from over 40 locations throughout Maryland, Pennsylvania, West Virginia, and Virginia and from our 220,000 square foot headquarters and CDC in Upper Marlboro, Maryland.

We have state-of-the-art training facilities in York, PA; Upper Marlboro, MD; Baltimore, MD; Hagerstown, MD; Richmond, VA; and Suffolk, VA.

CapitalTristate reserves the right to cancel or postpone any event for any reason.