About Us

AD-Tech is a Green Engineering Firm that provides sustainability consulting, Research & Development (R&D) and engineering implementation services for the construction, waste, and energy industries. At AD-Tech we envisage contributing towards tackling fundamental issues facing South Africa such as waste management; sustainable power security; decarbonisation of the construction industry; and poverty reduction using clean technology; smart data solutions; and circular economy principles. To date, we have been involved in a wide range of work, including: 

  • Sustainable Design Services 

  • Spatial Design and Community Upliftment Projects 

  • Waste Collection and Management Projects 

  • Renewable Energy Feasibility and Conceptual Design Consulting 

  • Database Development for COVID-19 Relief Efforts 

Our partnership with Ranyaka has broadened our capabilities and exposed us to a variety of community-related projects. Within these spheres, we have proven and enriched our database development and community engagement capabilities.

Our Team

Dr Patrick Okonkwo

Managing Director

BEng, MEng, PhD Civil Engineering

Riaan Truter

Systems Engineer 

BEng Mechatronic Engineering

Wihan Bekker


BEng Civil Engineering

Roche de Villiers

Ecological Landscape Architect

BSc Conservation Ecology,

Master of Landscape Architecture

JP du Plessis 

Director of Social and Business Development 


Nicolaas van der Westhuizen

Sustainable Agricultural Consultant

BA Environmental Management

Our Partners 




Screenshot 2020-05-04 at 13.57.36


Screenshot 2020-05-04 at 14.01.52