Mastery Leadership Sessions was founded in 2016 by a small group of organizational psychologists and former executives who shared a frustration: too many leadership development programs were long on theory and short on practical impact. They saw brilliant managers attend week-long retreats only to return to their desks and revert to old habits within a month.
Determined to break that cycle, the founding team designed a new kind of leadership workshop — one rooted in behavioural science, anchored in real workplace scenarios, and structured around deliberate practice rather than passive listening. The first pilot program ran in a converted loft space in Gatineau with twelve participants from three different companies. Within ninety days, every single participant reported measurable improvements in team engagement and personal effectiveness.
Word spread quickly. By 2018, the practice had expanded to serve clients across Quebec, Ontario, and the Atlantic provinces. Today, our team of fourteen facilitators delivers leadership workshops to organizations of every size — from ten-person startups to federal agencies with thousands of employees — in both official languages and increasingly in international markets.
Despite that growth, our core philosophy has never changed: leadership is a practice, not a title, and the best workshops leave participants with habits they can sustain long after the session ends.
Everything we do is guided by a simple mission: to make courageous, compassionate leadership the norm — not the exception — in every workplace we touch.
We pursue that mission through leadership workshops that challenge assumptions, build self-awareness, and equip participants with concrete tools they can apply the very next day. But tools alone are not enough. Lasting change requires a shift in mindset, and that shift is only possible when facilitators create a space of genuine psychological safety — a space where leaders can be vulnerable, experiment with new behaviours, and receive honest feedback without fear of judgment.
Every exercise, model, and framework we use is grounded in peer-reviewed research from organizational psychology, neuroscience, and adult learning theory. We stay current so our clients benefit from the latest evidence, not yesterday's trends.
We never deliver a one-size-fits-all curriculum. Before designing any workshop, we invest time understanding the organization's culture, challenges, and strategic context so that every activity resonates with the people in the room.
We measure the impact of every engagement — not just with post-session surveys, but with follow-up assessments at thirty, sixty, and ninety days. If something is not working, we say so and adjust the approach.
Growth requires discomfort, and our facilitators are skilled at pushing leaders beyond their comfort zones while maintaining a supportive, respectful environment. We believe the best feedback is both honest and kind.
Our facilitators are not just trainers — they are practitioners who have led teams, navigated crises, and built cultures of trust in real organizations before joining our practice.
Co-founder and lead facilitator
With a doctorate in organizational behaviour from McGill and fifteen years leading talent strategy at a national financial institution, Nathalie brings both academic rigour and executive-level empathy to every workshop she facilitates. She specializes in executive presence, strategic influence, and women-in-leadership programs.
Co-founder and director of programs
A former Canadian Armed Forces officer turned leadership consultant, Marcus designed our signature Team Alignment and Trust Lab. His background in high-stakes decision-making and cross-cultural collaboration informs a facilitation style that is direct, energizing, and deeply practical.
Senior facilitator and coaching lead
Amara holds an ICF Professional Certified Coach credential and a master's degree in adult education. Before joining Mastery Leadership Sessions, she spent eight years building leadership pipelines at a global technology company. She leads our Emerging Leader Accelerator program and post-workshop coaching engagements.
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