Integrys Energy Group is a prominent energy company based in the Midwest, focused on delivering value in energy and related services. It operates six regulated utility subsidiaries, including Wisconsin Public Service, Peoples Gas, North Shore Gas, Upper Peninsula Power Company, Michigan Gas Utilities, and Minnesota Energy Resources, which provide natural gas and electricity distribution and transmission services. Additionally, Integrys has a nonregulated subsidiary, Integrys Energy Services, which supplies natural gas, electricity, and alternative fuels, along with energy management and consulting services throughout the United States. The company also includes Trillium CNG, a leading provider of compressed natural gas for fleets, offering comprehensive CNG facility design, construction, operation, and maintenance. Integrys Business Support provides cost-effective services and solutions to enhance the operations of its subsidiaries. Furthermore, Integrys holds a 34% equity interest in the American Transmission Company, which operates electric transmission services across Wisconsin, Michigan, Minnesota, and Illinois.