355 110th Ave NE
Bellevue, WA 98004
(360) 766-5467
(360) 766-5504 (fax)
PSE is Washington’s oldest and largest privately owned and publicly regulated electric and natural gas utility. Today, PSE delivers safe, reliable and affordable energy to approximately 1.2 million electric customers and 900,000 natural gas customers across ten counties in western and central Washington.
https://www.pse.com/en/Customer-Service/pse-locations-2