STEPHANIE MANGIN and JASON KOCH have joined Veridian Credit Union. Mangin, manager of outbound and electronic relations, has worked at Veridian for 11 years where she previously was a team lead for outbound and electronic relations. She has a degree in finance from the University of Northern Iowa. Koch is an insurance agent for Veridian Insurance, a wholly owned subsidiary of The Veridian Group. He has 13 years of insurance experience and has a degree in marketing and human resources management from Upper Iowa University. They are both residents of Waterloo.