Avista Corp. is a holding company, which engages in the provision of electric and natural gas utility business. It operates through the Avista Utilities; and Alaska Electric Light and Power Company (AEL&P) segments. The Avista Utilities segment includes electric distribution and transmission, and natural gas distribution services in parts of eastern Washington, Northern Idaho, and Northeastern and Southwestern Oregon. The AEL&P segment offers electric services in Juneau. The company was founded on March 13, 1889 and is headquartered in Spokane, WA.