Established in 1978, Grafton Utility Supply distributes transmission and distribution products. It has 72 associates and operates in four cities: Colborne, Ontario; Winnipeg, Manitoba; Calgary, Alberta; and Surrey, British Columbia. Serving major Canadian-based utilities and utility contractors, its products include wire and cable, transformers, connectors, switches, insulators, underground and lighting.

The acquisition of Grafton Utility Supply provides HD Supply with the opportunity to expand its electrical utility distribution business into Canada.