Portman Ridge Finance Corporation Common Stock, also called Portman Ridge, is a private equity fund and non-diversified closed-end investment company that invests in middle market companies generating consistent cash flows located in North America. It targets companies operating across a broad range of sectors such as aerospace and defense, automotive, beverage, food and tobacco, broadcasting and entertainment, buildings and real estate, personal and cargo transport, chemicals, plastics and rubber, containers, packaging and glass, diversified or conglomerate service, ecological, electronics, finance, and healthcare. Read More The company was founded on August 8, 2006 and is headquartered in New York, NY.