Shamrock Electric Co., Inc.
ConstructionIllinois, United States11-50 Employees
Shamrock Electric Co., Inc. is a mid-sized electrical contractor in the construction industry, based in Elk Grove Village, Illinois. Founded in 1957 by Jack and Bill O’Shea, the company remains closely held and capable of delivering a broad range of electrical services. Its project history spans from Chicago’s Deep Tunnel infrastructure to tall downtown skyscrapers, illustrating a versatile portfolio across public works and commercial development. The firm pursues design/build engagements and sustainable energy initiatives, including LEED-aligned solutions, supported by disciplined project management and technical expertise. Long-standing relationships with customers, suppliers, and subcontractors are a central element of Shamrock Electric’s business approach.