
Mark Koistinen
Director of Portfolio Management
Mark serves as Director of Portfolio Management at Thomas Park, overseeing a diverse portfolio of commercial properties and supporting a team of property managers responsible for daily operations across multiple assets. With more than 30 years of leadership experience, Mark brings extensive expertise in property management, having previously managed properties with MCF Capital and HSH Property Management. He also has a strong background in financial and software services, leading technology, training, and program management initiatives for organizations including JPMorgan Chase, Paymentech, and Comparex USA. Mark is passionate about the customer experience, blending operational excellence with exceptional service to drive solutions that strengthen performance, foster collaboration, and deliver lasting results.