With weekly meetings every Wednesday morning, the East Portland Chamber of Commerce is an independent organization dedicated to serving the interests of businesses on Portland’s sprawling Eastside, from the bank of the Willamette River to the City of Gresham. The mission of the East Portland Chamber of Commerce is to provide a voice for business on the eastside. The Chamber strives to work actively with existing business associations on the eastside and with other private and public organizations that support business growth and development.