Ƙirƙirar wani nau'i mai rikitarwa na wannan jumla Kamfanin ya kafa a 1889 a matsayin Kamfanin Kamfanin Ruwa na Washington.
Tabbas, wani nau'i mai rikitarwa na jumla shine "An kafa kamfanin ne a 1889 a matsayin Kamfanin Wutar Lantarki na Washington, har sai kwamitin gudanarwa ya amince da canjin sunan zuwa Avista Corporation, wanda ya fara aiki a ranar 1 ga Janairu, 1999. "