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Tri State Supply Co

371 West Chestnut Street
Washington, PA 15301

T(724) 225-8311



A Long-Established Family Business on the Cutting Edge of Electrical Supply

Tri State Supply Company is a full line wholesale distributor of electrical and automation products. Jim Van Zandt helped start Tri State Supply as a family business in 1963. Since then, Tri State Supply has steadily grown to become the region’s most reliable supplier of premium wholesale electrical supplies, Allen-Bradley products and Rockwell Automation services, serving western Pennsylvania, northern West Virginia, and southeastern Ohio.

We aim to always place our customers’ concerns and needs first, and pride ourselves on our ability to solve even the most complex automation, electrical and service problems.


A Rockwell Automation Authorized Allen-Bradley Distributor for over 35 years


In 1977, Tri State Supply Co. became a Rockwell Automation Authorized Allen-Bradley Distributor. The franchise rights are only given to a select group of distributors throughout the United States and the world, with only 47 distributors in the United States, including five in Pennsylvania.

We continue to grow and expand, now working closely in the booming oil and gas industry.

We’d love to hear from you. Please call us at (724) 225-8311.