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Capital Tristate

About Us

Capital Tristate provides electrical products, lighting, and services to contractors, builders, and end-users in the Mid-Atlantic States. We service our customers from 43 locations throughout Maryland, Pennsylvania, West Virginia, and Virginia and from our new 220,000 square foot headquarters and CDC in Upper Marlboro, Maryland. Our mission is to be the electrical distributor of choice.

Our Commitment:

Capital Tristate delivers excellence in service, products from the finest manufacturers of electrical products, and extensive application expertise. We are built on the fundamental concept of being the best at those things that are important to the success of our customers and their customers. By making Capital Tristate a good place to work, we attract, grow and retain extraordinary people who are the best at what they do and who enjoy doing it.


8511 Pepco Place
Upper Marlboro, MD 20772
Phone: 301-909-6466
Fax: 443-692-0043