3x5 Special Opportunity Fund, L.P. is a Portland and Missouri based, closed-end private investment fund focused primarily on direct investments in later-stage companies within the healthcare and clean-tech sectors. The fund opened in 2011 and recently closed in 2013 at approximately $80 million in committed capital, which it expects to deploy over six portfolio investments. The fund is operated by Anthony Americh of Arnerich Massena, Inc., a West Coast-based independent investment advisory firm that offers services to corporations, institutions, state and local governments, charitable organizations, trusts and estates, corporate pension and profit sharing plans, and private clients. Arnerich Massena advises to approximately $17 billion in assets.