Meet Mariaan Maartens
Founder of Cornerstone Coaching
Why do we act the way we do – and is real change possible?
This question has guided Mariaan her entire life.
With a background in psychology and nearly a decade of experience working in rehabilitation, she developed a deep conviction: people are not defined by their patterns, but by their capacity for insight. When people understand themselves, they begin to change naturally. They begin to becoME.
A Journey Into Understanding People
Mariaan’s journey into understanding people began with a deep curiosity about human behaviour.
She studied psychology at the Military Academy in South Africa and later spent nearly a decade working at a rehabilitation centre. This experience profoundly shaped her understanding of people and their ability to change.
She witnessed firsthand that individuals are not defined by their past patterns, but often by their lack of insight into themselves. When people begin to understand the deeper patterns that shape their behaviour, relationships and leadership, meaningful change becomes possible.
The Foundation of Cornerstone Coaching
In 2015, Mariaan founded Cornerstone Coaching with a clear purpose: to help individuals, leaders, and teams gain deeper insight into themselves and the patterns that shape their lives.
Her approach integrates psychology, temperament insight, and practical coaching to help clients uncover blind spots, improve relationships, and lead with greater clarity and stability.
Rather than offering quick advice or motivational techniques, Mariaan focuses on helping people understand themselves more deeply. These moments of insight often lead to powerful “AHA” experiences that shift how people think, lead, and relate to others.
Because lasting change rarely comes from trying harder.
It begins with understanding.
And when understanding deepens, people begin to becoME who they were designed to be.
Professional Background
Mariaan’s work integrates a range of psychological and behavioural frameworks to help individuals and teams gain deeper insight and clarity.
Her professional background includes:
• Personality Coach
• Functional Therapist
• Ecometrist
• StrengthsFinder Assessment Facilitator
• Corporate Workshop Facilitator
• Leadership Development Coach
Through coaching, workshops, and talks, Mariaan works with individuals, leaders, and organisations seeking greater clarity, alignment, and impact.