WhiteHorse Finance, Inc. announced that William D. Markert has joined the company as Chief Operating Officer, effective August 1, 2014. Ethan M. Underwood, the company's current Chief Operating Officer, will continue his role as Managing Director of H.I.G. WhiteHorse Advisers, LLC, the company's investment adviser. William D. Markert most recently served as Chief Financial Officer of Securus Technologies, Inc. Mr. Markert has more than 25 years of finance, operations, business analytics, economics and regulatory experience and has held executive level finance and operations positions during the past 15 years.