RePG is a 100% renewable energy solution inspired by nature. It is a patented energy (electricity, heating, cooling) and water-from-air production process that uses waste as renewable energy. RePG's technology can generate energy ranging from 1-25kWh in open spaces like residences, hotels and offices. It also works in electric vehicles (cars, boats, drones) from 1-25kWs as a functional range extender, and can transform the heat discharged from servers, data storage and network devices into electricity while cooling down the ambient temperature. RePG's goal is to offer new technologies to change air conditioning, cooling and ventilation systems for good.

GemanLee is a South African cleantech venture specialising in the recovery and refinement of high-value critical metals from end-of-life lithium-ion batteries. Operating within the waste beneficiation sector, the company collects spent lithium-ion batteries from registered recyclers across Gauteng Province, processes them through a proprietary mechanical and electrochemical recovery system, and produces battery-grade outputs including cobalt, nickel, manganese, and lithium carbonate, achieving metal purities of up to 99.66%.
The core technology combines an eco-friendly organic acid leaching system with a novel ultrasonic-assisted electrochemical recovery method. Unlike conventional pyrometallurgical approaches which are energy-intensive, CO₂-heavy, and destroy lithium in the process and standard hydrometallurgical methods that rely on hazardous inorganic acids, GemanLee process uses biodegradable reagents, operates at lower temperatures, and produces five distinct, market-ready metal outputs rather than lower-grade mixed black mass. This results in a meaningfully lower carbon footprint and reduces hazardous waste generation.

G&D Sorption Green Development is a startup from Türkiye that has developed an electricity-free industrial cooling system transforming low-grade waste heat into chilled water for use in process cooling and air conditioning. By harnessing waste heat without external energy input, the G&D system reduces operational energy demand and eliminates the carbon footprint associated with traditional HVAC systems. Its compact and lightweight adsorber bed enables high performance even at low flow rates and moderate temperatures (50–90°C, 3–5 m³/h), extending applicability to facilities with limited waste heat outputs. The system includes AI-supported control software that adapts performance to varying operating conditions, improving efficiency and automation. Using water and silica gel as working mediums, the chiller avoids toxic or ozone-depleting refrigerants. G&D systems are suitable for diverse sectors including metallurgy, food processing, ship cooling, geothermal plants, solar facilities, and energy-intensive industries. By replacing electricity-powered cooling units, each G&D installation can reduce CO₂ emissions equivalent to over 4,000 trees annually.

Maeko is specialized in providing sustainable waste management solutions. Their services include waste collection, recycling, and disposal for various types of waste, such as paper, plastics, and electronic waste. They also offer consulting services to help businesses and organizations implement sustainable waste management practices. Maeko is committed to promoting environmental sustainability and reducing the impact of waste on the environment. They aim to create a cleaner and healthier future for the community through their waste management services.

CircularBuild is a construction materials marketplace focused on reducing waste and improving efficiency in the construction industry.
In South Africa, a significant amount of construction materials is lost as waste each year, despite ongoing demand from builders and contractors. CircularBuild addresses this gap by enabling contractors, suppliers, and developers to sell surplus and unused materials instead of discarding them.

The platform connects supply and demand through a combination of on-the-ground sourcing and simple digital tools, allowing materials to be captured, listed, and redistributed quickly. This helps sellers recover value from unused stock while giving buyers access to more affordable materials.
CircularBuild is currently in its early operational phase, working directly with construction sites to identify surplus materials and facilitate real transactions between users. This hands-on approach allows the company to validate market demand, build trust, and refine its model based on real-world activity.

By improving material reuse, CircularBuild contributes to reducing construction waste, lowering carbon impact, and supporting a more circular economy within the built environment.
Over time, CircularBuild aims to expand into a broader infrastructure layer that supports logistics coordination, material data insights, and sustainability reporting across the construction value chain.

Industrial Automation, also known as Orcolia-Plus SRL, offers a comprehensive portfolio of world-class services to ensure the maximum performance of your equipment and processes

TelioGreen is an upcoming digital platform aimed at revolutionizing the recycling industry in Africa. With a focus on building a pan-African, digital, circular economy, TelioGreen aims to address the crises of plastic waste and poor urban waste management systems through technology. Their solutions include a recycling ecommerce marketplace, a recycling mobile app, and ESG tech innovation. The platform will facilitate the digital trade of recycled materials, connecting waste management and recycling SMMEs, re-processors, manufacturers, brand owners, and local municipalities. By providing market access opportunities for recyclers and incentivizing recycling practices, TelioGreen seeks to create a more sustainable and collaborative ecosystem for waste management.

Main CEA was established to engineer aquaponics-centered eco-industrial food production systems that operationalize the three pillars of Climate-Smart Agriculture (CSA): (i) increased productivity and incomes; (ii) adaptation and resilience to climate change; and (iii) reduction/removal of greenhouse gas emissions. Waste generated within the production system is valorized into microalgae based agricultural biologicals to increase nutrient use efficiency in both field and greenhouse applicaitons while reducing the fertilizers usage.

PowerDrive is a veteran-founded e-mobility company offering a complete sustainable urban-mobility ecosystem built around electric scooters for couriers and delivery services. It provides rental, in-house repair, and its own electric scooters and lithium battery packs, delivering faster operations, lower running costs, zero emissions, and longer battery life than imported alternatives. Its differentiators are local design, assembly, and servicing in Ukraine, in-house repair, and proprietary battery technology, ensuring quality, durability, and fast maintenance. As a veteran-owned business, PowerDrive also creates jobs for veterans through a growing network of veteran-run workshops that support their social reintegration. Revenue comes from B2B scooter-rental subscriptions, maintenance and battery-service contracts, and vehicle and battery sales. Each scooter avoids roughly 500 kg of CO2 per year, and more than 85% of battery materials are recyclable. With over 120 active vehicles across Lutsk, Rivne, and Lviv, years of technical experience, and a partnership with Glovo, PowerDrive is expanding to more cities.

Brayfoil is a pioneering company that utilizes biomimetic design inspired by African birds of prey to develop morphing wing technology for wind turbines. Their innovative adaptive turbine blades have the potential to revolutionize wind energy performance by addressing the challenges of weight and cost. By dynamically changing the shape of the blade during operation, Brayfoil's patented Morphing Wing Technology modulates loadings and enables longer blades for increased energy production. This results in reduced storm loads, operational loads, and perturbation sensitivity, leading to lower energy costs and improved efficiency. With their rigorous approach, interdisciplinary expertise, and support from AI and machine learning, Brayfoil aims to contribute significantly to the wind energy sector and make a substantial impact on global emissions reduction.