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Meet Our Leadership Team

Njeru Mwandiki
Njeru MwandikiFounder & CEOnjerumwandiki@njema.africa

The Founder and CEO of NjeMa Marché Africain Consulting Ltd is a seasoned business leader with over two decades of experience driving market entry, growth, and commercial expansion across Sub-Saharan Africa. His expertise spans FMCG, renewable energy, wellness, and financial services, where he has successfully supported both start-ups and established brands to scale in diverse markets. An economist by training and certified in export market development by the International Trade Centre, he brings deep regional insight, strong commercial networks, and multilingual capability in English, Kiswahili, French, and Lingala to unlock sustainable growth opportunities for partners across diverse markets in Africa.

Winfred Mwihaki
Winfred MwihakiCo-Founder, Managing Partner and Training Leadwmwihaki@njema.africa

Winfred is a senior HR and training professional with over 12 years of cross-sector experience. As Co-Founder and Managing Partner, she leads a multicultural team in delivering customized training and strategic HR solutions focused on leadership, organizational development, and sustainable growth

Stephen Katongo
Stephen KatongoManaging Partner Zambiaskatongo@njema.africa
Stephen is a seasoned Business Development Professional with vast private sector expertise. He specializes in strategic planning, effective decision-making, collaboration, and innovative problem-solving. Renowned for his creativity, he successfully manages complex projects and executes impactful corporate social media campaigns. A driven and results-focused individual, Stephen thrives in both independent and team settings.
Mike Arasa
Mike ArasaCo-Founder & Technical Director | NjeMa Clean Energy Africa (NCEA)info@njema.africa
Co-Founder & Technical Director | NjeMa Clean Energy Africa (NCEA) Mike Arasa is a renewable energy engineer and project delivery specialist leading the technical execution of NCEA’s EPC, EPC-F, and BOT portfolio. His experience spans utility-scale solar, C&I infrastructure, and decentralized power systems, with a focus on technically complex and high-capacity projects. He directs the full project lifecycle- from feasibility and engineering design through construction oversight, commissioning, and operational performance- ensuring projects are delivered safely, efficiently, and to bankable standards. Mike holds a Master’s degree in Sustainable Environment and Energy Systems and a Bachelor’s degree in Mechatronics Engineering. His work advances resilient, scalable clean energy infrastructure that supports industrial growth and grid stability.
Ndombi Oyalo
Ndombi OyaloManaging Partner Nigerianayalo@njema.africa
Ndombi Oyalo is a seasoned Environmental Health, Clean Energy, and Market Insights specialist with over a decade of experience supporting organisations across Sub-Saharan Africa with high-level research, market intelligence, and strategic advisory. He brings strong analytical capability and a results-driven approach to helping businesses, governments, and development partners identify market opportunities, strengthen strategy, and drive sustainable growth through evidence-based decision-making. As Country Managing Partner for Nigeria, Ndombi leverages deep regional market knowledge and extensive experience in program evaluation, feasibility studies, and ecosystem analysis to guide partnerships and investment initiatives. Known for his integrity, strategic insight, and ability to translate complex data into practical business direction, he is committed to building impactful collaborations that deliver scalable solutions across the clean energy, public health, and development sectors. 

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OFFICES

NAIROBI

NjeMa Marché Africain Consulting Limited

PO Box 6569-00100- GPO Nairobi Kenya

8th Floor Pinetree Plaza, Kaburu Drive Off Ngong Rd

Telephone: +254 715 472 515

Email: info@njema.africa

LUSAKA

C/O Ubuntu Services Limited
P.O Box Po Box 140, Castle Shopping Centre
St Eugene office Park, Suite 6, Lake Road, Kabulonga
Lusaka, Zambia
Telephone. +260 779 725 462
Email: info@njema.africa ; skatongo@njema.africa

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