Founded in 1922, WESCO International is a global distributor of electrical products, industrial supplies, and integrated supply services. Headquartered in Pittsburgh, Pennsylvania, the company operates branches and distribution centers across the United States, Canada, Puerto Rico, Guam, Mexico, the United Kingdom, and Singapore. WESCO's core mission is to provide comprehensive supply chain solutions that enhance operational efficiency and reduce costs for their customers. Their product offerings include electrical and electronic products, industrial maintenance supplies, and advanced integrated supply services.

Notable figures affiliated with WESCO International include John Engel, who serves as Chairman and CEO. The company is publicly traded on the New York Stock Exchange under the ticker symbol WCC and is a component of the S&P 400. WESCO has achieved significant milestones in expanding its global footprint and enhancing its service capabilities. The company's impact is evident in its ability to streamline supply chains and improve operational efficiencies for a diverse range of industries worldwide.