Book Marc



A battle-tested, new approach to leadership and safety for navigating this dynamically changing, disruptive world.


Leaders today are incredibly overwhelmed and exhausted navigating the complex and dynamically changing world. The massive disruptions and uprooted business climate we’ve all felt is only the beginning. Most organizations are stuck in old leadership frameworks that are no longer serving them, causing low employee engagement, decreased productivity, and high turnover.

What is needed is a new approach to leadership and leadership development that creates leaders at every level.

Marc Koehler makes accessible a battle-tested leadership approach based on his 35+ years experience as a Nuclear Submarine Officer and turnaround CEO that is grounded in simplicity and agility along with a tangible set of actions leaders can implement immediately.

Organizations who develop Fast Attack Leaders build a high-performance E3 Culture that is 9X more aligned and 4X more productive with 3x higher retention.


Marc Koehler is a former U.S. Navy Nuclear Submarine Officer, Best Selling Leadership Author, 35+ Year Sought-After Elite Leadership Expert and Founder of the Leadership Development and Research Firm Lead With Purpose

Marc Koehler is a rare blend of expertise, engagement, and battle-tested, proven experience in Elite Leadership. He evangelizes that what the world needs is not more management systems – it needs more leadership. Marc’s experience in both the nuclear submariner service, including receiving two Battle E’s over the course of his career, as well as the business world has led him to become one of the foremost experts on Elite Leadership – a needed, relevant, and achievable approach to leadership for this new, disruptive world. His leadership development and research firm, Lead With Purpose, has developed over 51,000 leaders through the company’s SHRM-accredited organizational leadership consulting, coaching, courses, and simple systems. Residing in Oceanside, California, Marc is married to his wife Heidi of 28 years and Dad to their three grown daughters, Anja, Liesel, and Sophie.