The Measure of Our Work
is in your Growth
For over 25 years, Irwin van Stavel has worked with leaders, teams, and organisations across Africa — and the most meaningful measure of that work is not a methodology or a framework. It is the voices of the people who experienced the transformation firsthand.
Testimonials

Mark Silimi
HUMAN RESOURCES MANAGER, FQM Trident Mine
Mr. van Stavel demonstrated an extraordinary ability to connect with the 135 managers and leaders who went on this transformational leadership journey. His approach combined deep expertise in leadership principles with a remarkable talent for creating psychologically safe environments where our employees felt comfortable exploring new mindsets, stretching themselves to challenge established thinking patterns and behaviours. The quality of Mr. van Stavel’s facilitation was consistently outstanding and of a high quality, achieving an average delegate satisfaction rating of 92%. What particularly impressed us was his skill in tailoring content to our specific organisational challenges while maintaining alignment with our strategic objectives.
The impact on our organisation has been profound and measurable, including improved cross-functional collaboration, enhanced decision-making, increased psychological safety and trust, and more effective conflict resolution. His masterful facilitation and coaching have not only enhanced our leadership capabilities but have fundamentally redefined what excellence means at First Quantum Minerals.

Cougen Purseramen
Group Head of the Industrial, Engineering & Logistics Clusters, IBL SEAFOOD CLUSTER
The impact on our organisation has been substantial and far-reaching, including enhanced organisational sustainability, successful internal promotions, cultural transformation, and strengthened employee engagement. The methodologies and mindsets he introduced have become embedded in our organisational DNA, creating lasting value beyond the formal program.

Kimjackson Njeru
HEAD OF COMMERCIAL, NAIVAS LIMITED
One of the most exciting implementations has been the 4DX Project Management Tool, which has been a major upgrade in how we approach project plans. The Multipliers conversation challenged me to become more intentional about creating space for my team to shine and excel. Your masterclass has been more than a leadership program, it’s been a personal transformation.
As a Strategic Management and Leadership student, this journey has been a huge bonus and has deepened my passion for mentorship, something I plan to carry well beyond corporate life.

Flo Saronge
Head of Marketing, Naivas Limited
On a personal level, the session created valuable space for reflection, challenging me to be more intentional about wholeness, leadership presence, and how mindsets shape not just outcomes, but people.
Professionally, the frameworks and habit-stacking approach have provided practical, actionable tools that we can confidently embed into our teams to drive sustainable performance and resilience. Once again, thank you for the generosity of your time, insight, and leadership throughout this journey. The impact, both personal and organisational, will be felt well beyond the sessions.
Proximus is the culmination of Irwin's lifelong journey of faith, leadership, and a deep calling to serve the African continent.
He believes in maintaining connections with clients, fostering organisational growth and guiding leaders and teams to become their most authentic and powerful version of themselves.
