In May 2018 Dr. Claudia Nagel was invited to join to the international Coach Pool "Coach Source".
Headquartered in the US, CoachSource is one of the world's most experienced and successful executive coaching companies.
Coach Source writes about themselves: "At CoachSource, executive coaching is our passion. Our worldwide team of coaches develops highly successful leaders, using programs tailored to fit their objectives as well as those of the organizations they manage. It’s our job to make hiring and managing coaches easy, while providing all the tools to track results with confidence. We are the recognized experts at what we do. With our guidance you will do more than meet your leadership development goals—you will surpass."