Lead with Clarity.
Live with Purpose.

I mentor and coach CEOs and senior leaders while still being one. That shared experience changes how we work together. You’re not working with someone who simply read about leadership theory; you’re working with an experienced peer who understands what it takes to lead well.

My coaching and mentoring draw on deep experience in organizational leadership and the Birkman Method, one of the most sophisticated behavioural tools available. I help leaders and teams understand themselves more clearly, make better decisions, and work together more effectively.

Be warned, though: what we do together is rigorous, personal, and built for leaders and teams who want sustainable transformation and impact, not surface-level insight.

Mark Wessner, PhD  ·  Author
The Four Languages of a Leader book cover
The Four Languages of a Leader
Finding Your Heart Language and Building Teams That Can Connect with Anyone
Seeing the Unseen book cover
Seeing the Unseen
How the Birkman Method Reveals Your Unique Design for Life and Leadership

What Leaders Say

“Having clear insight into what I need to thrive in a relationship, whether personal or vocational, was more impactful than any other assessment I have done.”
Chris Wiebe, Chief Steward of Operations, Telaris Group of Companies

“My leadership has shifted in understanding when to delegate and empower someone else, rather than trying to do everything myself.”
Erik Bird, Race Director, Fat Dog 120

“Mark helped me discern between responsibility, accountability, and influence. He is a great ally to help someone understand their leadership style and maximize their game.”
Rachelle Munchinsky, Director, Students, University of Northern British Columbia

[Read full client stories →]

Executive Coaching

An ongoing, high-trust partnership for senior leaders who need a thinking partner in real time.

This pathway is designed for leaders facing high-stakes decisions, complex relationships, and sustained pressure. Rather than a fixed curriculum, it starts with a Birkman assessment and evolves with your leadership context, offering self-awareness, perspective, and strategic support as situations arise.

Ideal when leadership demands are continuous, and the cost of isolation is high.

Team Development

A multi-stage leadership experience for senior leadership teams.

This pathway strengthens trust, communication, and alignment by addressing underlying team dynamics. Every participant completes a Birkman assessment and receives an individual debrief before a custom-built team session. The result is clearer expectations, reduced friction, healthier decision-making, and stronger collaboration.

Practical, data-informed, and designed to improve how leadership teams function under pressure.

Who I Work With

Leaders I have coached come from Accenture, Amazon, Peterbilt, Compassion, Legacy Investments, Booth University College, and others across corporate, nonprofit, and higher education. My mentoring and coaching is designed for leaders and teams who:

  • Have significant responsibility and influence
  • Are navigating complexity, not certainty
  • Want clarity and steadiness, not quick fixes
  • Are willing to reflect, adapt, and grow

If you are looking for generic leadership advice or surface-level motivation, I am not a good fit.

If you are looking for a trusted thinking partner to help you lead with wisdom, alignment, and long-term perspective, let’s talk.

Who I Am

My mentoring and coaching draw on decades of senior leadership experience, including my current role as President of MB Seminary and my work as a Birkman Certified Professional.

I understand what it means to lead within complexity: to work with boards and executive teams, guide change, and make decisions that affect people and institutions over time. Leaders trust me because I have carried the pressures they face and can help them navigate those pressures with clarity and purpose.

Outside the boardroom, I train as a trail runner and hybrid athlete. That discipline reinforces something true about leadership: clarity, resilience, and endurance are built through intentional rhythms, not intensity alone.

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