During his time as an educator at several universities, Merschen started consulting projects for a variety of industries. This is when he discovered it was travel that captivated his real interest. Merschen created Myriad, a full-service marketing company specializing exclusively in the international travel industry with private clients and governments on five continents. For over 30 years, Merschen developed strategic solutions to client challenges, creating industry partnerships, research projects and global solutions. In 2016 Myriad became part of MMGY Global portfolio of companies. As a partner at MMGY, his focus is on the development of International Insights. He also serves as Chairperson of the MMGY international marketing agency consortium. In 2020 Merschen created the Sigmund Project. A digital not-for-profit dedicated to travel and tourism innovation through collaboration. Merschen also serves on several non-profit, as well as start-up advisory boards. Always the educator, he still conducts marketing presentations throughout the world.