Prof. Mark Ollunga Odhiambo
Lead Trainer & Senior Advisor
Professor of Agricultural Economics & Resource Management, Moi University. PhD, UC Davis. ESG strategy, sustainable finance, and climate adaptation.
A premier international consultancy bridging strategy and impact for governments, institutions, and businesses.
Our story
Across the institutions we work with, we kept meeting the same challenge: sustainability ambitions that were well-intentioned but short on the strategy, data, and institutional capacity needed to make them real.
Nexus Global Sustainability was formed to close that gap — pairing rigorous advisory work with structured capacity building, so that ESG and climate commitments survive contact with day-to-day institutional reality.
Meet the people behind it →To be the world's leading catalyst for sustainability-driven transformation across institutions, economies, and communities.
To deliver expert advisory, training, and research services that enable global stakeholders to mainstream sustainability, strengthen institutional capacities, and accelerate inclusive development in alignment with global climate and ESG goals.
We uphold transparency, honesty, and ethical standards in all our engagements.
We apply creative and evidence-based solutions to sustainability challenges.
We believe in co-creating impact through partnerships and inclusivity.
We strive for quality, professionalism, and measurable results in every service.
We advocate for inclusive development that leaves no one behind.
Our approach
Context-first guidance, never an off-the-shelf answer.
Experience across sectors, borders, and institution types.
Long-term value built into every engagement, not bolted on.
Senior specialists who combine insight with implementation.
Trusted by institutions
"Sustainability is strongest when institutions have both the strategy and the capacity to act."
"Their ESG advisory turned a compliance exercise into an actual strategy."
As featured in
Our people
Our advisors bring together academic depth, programme leadership, and practical experience across sectors and geographies.
Lead Trainer & Senior Advisor
Professor of Agricultural Economics & Resource Management, Moi University. PhD, UC Davis. ESG strategy, sustainable finance, and climate adaptation.
Monitoring & Evaluation Specialist
MSc, Agricultural & Applied Economics, University of Nairobi. Project cycle management, results-based frameworks, and data analysis.
Global footprint
Our capacity-building and advisory operations span six international delivery locations across Africa and the Middle East.