Portman Ridge Finance Corp. operates as a non-diversified management investment company. The firm targets companies operating in the fields of aerospace/ defense, business services, consumer products, education, food & beverage, healthcare, industrial & environmental services, logistic & distribution and media & telecommunications. Read More It provides financing in the form of debt and also makes equity co-investments. The company was founded on August 8, 2006 and is headquartered in New York, NY.