Delia Ndlovu
CEO & Co-founder
Delia Ndlovu is a former Deloitte Africa Chair with over 30 years of global leadership experience. She has led Deloitte, an R8 billion professional services firm, across 16 African countries, shaping corporate governance, transformation, and strategy at the highest levels. As Founder of Petra Rock Investments, Delia champions high-growth, scalable ventures that are focused on innovation and sustainability
Professor Maurice Radebe
Chairperson & Co-founder
Professor Maurice Radebe is a distinguished global business leader with extensive executive experience in the energy sector. He has held senior leadership roles at Shell, Exel Petroleum, and Sasol Oil, where he was the Executive Vice President of the global energy business. Founder of the Unleashing Leadership Potential Foundation, Professor Radebe holds an MBA from Wits and has completed executive training at Harvard.
Ndumi Medupe
CA (SA) CFO & Co-founder
Ndumi Medupe is a seasoned executive and non-executive director with over 28 years of leadership experience. She is a turnaround strategist and risk expert, who has chaired audit, risk, and ethics committees across a range of industries. As Founder of Petra Rock Investments, Ndumi leverages her expertise in business growth, and disruptive innovation to drive high-impact venture capital investments.
Phinda Vilakazi
Technical Director &
Co-founder
Phinda Vilakazi is an accomplished executive with over 25 years of global leadership experience in oil and gas, refining, manufacturing, and renewable energy. He has led multi-disciplinary and talent development teams across West Africa, the Middle East, and Mozambique. A member of the IoDSA, Phinda holds a BSc in Chemical Engineering from UCT and an MBA from GIBS, with executive training from IMD, Switzerland.
PROVEN EXPERTISE
Industry Expertise and Reach
With decades of combined experience in the energy industry spanning South Africa, sub-Saharan Africa, and global markets, our team brings deep expertise across the entire energy value chain, from midstream and downstream to frontier sectors such as renewable energy and green hydrogen.
Strategic Investment Focus
We identify investment opportunities across diversified sectors, including Fintech, renewable energy, and emerging technologies, with a focus on sustainable growth, transformation, and strategic brand positioning.
Purpose-Driven Partnership
Guided by purpose, our approach prioritises sustainability, shared value, and social transformation. We invest in businesses that create inclusive environments where people and communities can thrive. Our leadership partnership, built on over thirty years of trust and collaboration, underpins everything we do.
LEADING FORCE FOR SUSTAINABILITY
Our values and high commitment to sustainable business,
is shown easily though by our alignment with the 2030 Agenda and the Global Goals.
We are enabling renewable energy
We invest in clean energy solutions to accelerate universal access to affordable, reliable, and sustainable power across Africa. We exist to enable a just and equitable energy transition within South Africa and beyond, enabling implementation of scalable, low-carbon energy initiatives.
We are creating jobs
Our investments prioritise local value chains and industrial development to stimulate job creation and inclusive economic growth. Matla Rock Ventures nurtures inclusive economic prosperity and social impact through investments that foster local employment, enhance service delivery, and support community development.
We broker sustainable partnerships
Collaboration with like-minded partners is central to our investment model and essential for scalable, long-term impact. We are highly networked, with the extensive governance experience needed to build trusted partnerships that deliver with excellence.
We are enabling clean business
We uphold good governance, transparency, and accountability in all our operations to foster trust and institutional integrity. Our focus on FinTech enables safe and secure transactions and clean contracting for both public and private sector goods and services.
We are enabling better infrastructure
We support integrated infrastructure solutions where energy access catalyses improved water and sanitation outcomes in underserved communities.
We are enabling Just Energy Transition
We are enabling the shift away from fossil fuels by backing technologies and models that reduce carbon emissions and enhance resilience.
We are advocates for gender equality
Our leadership whole heartedly supports the elimination of gender bias and we believe in diverse leadership. High performing teams are cognitively and demographically diverse.
