Mark O’Donnell is a highly successful entrepreneur, CEO, and expert EOS Implementer. He is the current Visionary and CEO of EOS Worldwide and has also served as head coach for the company. With over 100 companies under his belt, Mark has helped numerous companies achieve their goals and get what they want from their businesses. As a serial entrepreneur, Mark has founded and sold multiple successful businesses. His passion for helping people live their ideal lives led him to his current mission of assisting a million people with tools like those found in EOS.

Angela Kalemis grew up immersed in her family's business, learning firsthand the challenges business owners face. She holds a bachelor of engineering in engineering management and a master of arts in project management from Stevens Institute of Technology. Angela’s professional journey includes over 17 years at Booz Allen, where she specialized in business development and program management. Inspired to help her husband's business, Angela became a professional EOS Implementer to apply these tools in his company, achieving transformative results. In the six years since, dedicated to helping other business leaders she has facilitated 500+ sessions and worked with more than 70 companies. Angela is also a coach at EOS Worldwide, helping new implementers master the system.

For over 20 years, Mark Stanley has been helping entrepreneurial leaders clarify, simplify and achieve their vision. In addition to working with over 150 different organizations in just about every industry, he has owned and sold three different business. Mark was one of the first EOS® Implementers, approaching his fifteenth anniversary as an Expert EOS Implementer and clocking over 1,300 session days. Mark is a life-long learner with a BBA in Finance with Honors from the University of Iowa and an MBA from Drake University, and is a certified Six Sigma master black belt and a TOC supply chain expert with a passion for ongoing improvement. When he’s not working, you can find Mark spending time with his family and friends, traveling, trying to match the wine with the cheese, and indulging his insatiable passion for exploration, discovery, and learning. Mark and his family make their home in Johnston, Iowa.