Gillian Hammah

Dr. Gillian Hammah
Coach, Co-Impact

I am a transformative systems change specialist and organizational development coach with almost 30 years’ experience across Ghana and Canada. Currently, I serve as Chief Marketing Officer (CMO) at Aya Data while advancing organizational strengthening initiatives for Co-Impact partners throughout Africa, where I focus on capability building, strategic implementation, and sustainable change.

My systems change work with Co-Impact involves coaching organizations during the design phase of their systems change journey. I leverage my deep knowledge to support partners to identify areas needing organizational strengthening and develop effective implementation strategies. Additionally, I design and implement frameworks for Communities of Practice among Co-Impact partners across the Africa Region, fostering knowledge sharing, collaborative learning, and collective problem-solving.

As CMO at Aya Data, I leverage my extensive background in strategic planning, brand management, and digital innovation to drive the company’s AI solutions and market presence. Prior to this role, I served as Group CMO at Databank Financial Services for 10 years, leading a team of 130+ professionals across 20 locations. My international experience includes a notable 15-year tenure at Invesco Canada, where I developed expertise in crafting award-winning marketing campaigns.

I am passionate about empowering organizations with the tools, strategies, and mindsets needed to create sustainable social impact. My work spans across public, private, and non-profit environments, with a proven track record in stakeholder engagement, strategic planning, and cross-sector collaboration. I facilitate workshops and training sessions focusing on systems thinking and organizational resilience.

Beyond my executive roles, I speak extensively on AI, marketing, leadership, and strategy, and serve as a guest lecturer at the University of Ghana Business School and adjunct faculty at NIBS University.

I hold a PhD in Business Administration from NIBS University and am a Fellow of the Chartered Institute of Leadership and Governance (FCILG). Recognized as one of Ghana’s 50 most influential CMOs in 2019, my journey exemplifies an unwavering commitment to leadership, strategy, and continuous learning.

On a personal level, I am a mother of 3, married to an amazing husband for 28 years. I love tennis (could play it 7 days a week if my knees allowed) and action movies (lol)!

Additional Reading: #BehindtheIMC | Dr Gillian Hammah on the human edge in an AI-driven marketing world