Colleen Jack
Location: Johannesburg, South Africa
Biography
Colleen Jack is a senior executive and team coach with extensive experience working across complex, global organisations. Her career spans leadership development, organisational effectiveness, and large-scale change initiatives across industries including telecommunications, financial services, pharmaceuticals, professional services, and brand-led organisations.
Colleen partners with senior leaders, executives, and leadership teams to strengthen leadership capability, presence, and decision-making in environments marked by complexity, scale, and sustained performance pressure. Her work is grounded in behavioural science and systems thinking, and she is known for integrating assessment insight with practical, real-world application to support measurable leadership impact.
In addition to her work as a coach, Colleen has designed and delivered multi-year leadership development programmes within large, matrixed organisations, supporting leadership capability at scale. She brings particular strength in translating strategy into leadership behaviour, supporting leaders through transformation, and enabling teams to operate more effectively in dynamic, high-stakes contexts.
Colleen works globally with clients across regions and cultures, delivering one-to-one executive coaching, team coaching, and leadership development initiatives both in-person and virtually. She is experienced in facilitating senior leadership groups and working alongside organisational stakeholders to align coaching outcomes with broader business objectives.
Her approach combines reflective depth with clarity and accountability, enabling leaders to navigate complexity with confidence, strengthen their leadership presence, and deliver sustained organisational impact. Colleen is valued for her calm, considered style and her ability to create trusted coaching partnerships that support meaningful, lasting change.
Niche Areas of Expertise
- C-Suite
- Career Development
- Diversity & Inclusion
- Emotional Intelligence
- Entrepreneurship
- Executive Presence
- Intercultural Communications
- Leaders in Transition
Industry Experience
- Education
- Financial Services
- Government
- Media & Entertainment
- Metals & Mining
- Nonprofit
- Professional Services
- Retail
- Airlines
- Apparel, Accessories & Luxury Goods
Languages
- English
- Afrikaans
Education
- LINEA Academy - BA, Fine Arts (Fashion)
- Sandton Coaching Centre - Diploma, Coaching Supervision
- Gordon Flack-Davidson Academy of Design - Diploma, Fashion Design, Pattern Making, and garment construction
Certifications
- ICF - PCC
- EMCC
- Co-Active Training Institute
- AIIR Team Effectiveness Survey
- AIIR Coaching Mindset Index
- AIIR Dynamics 360
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