We have been an integral part of the business community in Western Pennsylvania for more than 57 years. Started by John Stern in 1948, 'Keystone' remains a family-owned, small business serving the electrical needs of our OEM, industrial, commercial, and electrical contracting customers. John Stern's original conservative business values and operating philosophy are still part of the day to day operations of the company - have stock, fair prices, and first-class service.