South Dakota Electric Utility Companies Back to Search South Dakota Electric Utility Companies Categories Associate Members 106 W. Capitol, Suite 7 , Pierre , SD , 57501 PO Box 247 , Pierre , SD , 57501 (605) 224-6311 (605) 224-7426 Send Email Additional Info Owner : SD Electric Utility Companies Contacts Primary Steve Willard Executive Director Share × Print Email Facebook LinkedIn Twitter Pinterest Powered By GrowthZone