ONAA Consulting Engineers

Innovative engineering solutions for water, waste, energy and infrastructure, built around sustainability and long-term value.

Explore Our Services Discover ONAA

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WHO ARE WE

ONAA Consulting Engineers and its engineering work

We are an innovative engineering consultancy incorporated in 2023, specialising in sustainable solutions for the water, waste and energy sectors.

Through our subsidiaries, Onaa Water, Onaa Energy, Onaa Waste and Onaa Technologies, we apply strong engineering principles to address complex challenges for public- and private-sector clients.

We believe in teamwork, research and the development of new ideas. By combining technical expertise with strategic insight and modern tools, we deliver efficient, scalable solutions that support sustainable transformation and long-term value.

MISSION & VISION

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Our Mission

To deliver innovative and sustainable engineering solutions for water, waste, and energy sectors, with infrastructure development improving service outcomes for communities and industries.
To improve infrastructure performance and resource management by partnering with public and the private sector through efficient engineering management.
To strengthen Africa's technical expertise and advance research, training, and technology for tackling construction, environmental and infrastructure challenges.

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Our Vision

We aspire to be leading engineering consultancy and management firm in Africa, delivering solutions with global relevance and impact.
We have a goal to achieve universal access to sustainable water access, resource utilization, proper sanitation, and energy services across African communities by 2050.
We look forward to become a transformative force in driving innovation, employment, and large-scale infrastructure development across the continent.

WHAT WE DO

At Onaa, we focus on sustainable engineering solutions that blend construction, environmental, natural eco-care, and infrastructure management to enhance lives. Our core values; excellence, integrity, innovation, and partnership drive our mission to provide efficient water, waste, and energy solutions.

We aim to become a leading engineering management firm in Africa with global impact, believing that well-managed infrastructure can drive poverty alleviation, economic growth, and healthier communities for current and future generations.

WHAT WE HAVE DONE

WATER - FOOD - ENERGY NEXUS

We have worked on sustainable rural development by integrating water, food, and energy solutions. Utilizing engineering and technology, we enhanced water security, boosted food production through smart irrigation, and broadened access to sustainable energy for rural communities and small-scale farmers.

ENGINEERING DESIGNS

We provided engineering design and contract management reviews for residential and industrial projects, assessing feasibility, compliance, and legal aspects to reduce risks and costs. We also prepare competitive bids and contract documentation, including Bills of Quantities (BOQ), for construction and infrastructure projects.

WATER UTILITY MANAGEMENT

Contributed to water utility energy management and Non-Revenue Water (NRW) interventions in partnership with donors across several commercial utilities, increasing efficiency by 12%.

PROJECT MANAGEMENT & SUPERVISION

Provided construction supervision and resource management services across multiple infrastructure and construction projects, maintaining high quality standards, zero safety injuries, and cost variance within ±10%.

Who have we worked with

Meet Us

Meet the team bringing together engineering, operations, policy, finance and research expertise.

Atotwe Mfuamba

Executive Director

M.Eng.

Jonathan Mfuamba

Operations Director

M.Eng.

Andy Ilunga

Policy Specialist

LLM

Eden Mfuamba

Finance and Data Analyst

MBA

Divine Beya

Admin/Research Specialist

MBA

JOIN US

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WATER

We focus on integrated water resources engineering and development, offering solutions for water supply systems, utility management and performance improvement, groundwater hydraulic modelling, hydrology and river catchment assessment.

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WASTE

We specialize in sustainable sanitation and solid waste management, offering solutions for wastewater infrastructure, fecal sludge management, solid waste collection and disposal, recycling, and environmentally friendly practices.

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ENERGY

We provide sustainable energy solutions, specializing in hydro, solar PV, energy efficiency, and hybrid power systems for urban and rural settings. Our mission is to foster a greener future by empowering communities with reliable, clean energy while promoting energy independence and reducing carbon footprints through expert design, installation, and maintenance of robust energy infrastructure.

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CONSTRUCTION

We provide comprehensive construction solutions for residential, commercial, and industrial clients, managing projects from conception and design to execution and completion. Our approach emphasizes technical expertise, efficient project management, quality control, cost optimization, and HSE compliance, ensuring durable, functional, and environmentally responsible infrastructure.

We welcome collaboration and partnerships with organisations and professionals committed to delivering sustainable, impactful engineering solutions across Africa.

Contact ONAA

ONAA Consulting Engineers

Sustainable engineering and infrastructure solutions for communities and industries.

Email: Info@onaa.co.zm

Phone: +260 967 335193

Phone: +260 770 704467

Address: Silverest 87A, Lusaka, Zambia