Best Energy Tech Companies in South Africa
The 116 best Energy Tech companies in South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Hydrox Holdings.
South Africa's Energy Tech sector has enough going on right now that ranking its 116 tracked companies by disclosed equity funding feels less like a directory exercise and more like a live dashboard. Total disclosed funding sits at $2.3B, though that figure is almost entirely carried by Hydrox Holdings, which accounts for the full $2.3B on its own. Strip that out and you're looking at a much earlier-stage field, with Cloudline at $6M and Alien Fuel Group at $2M leading the rest. So what does that concentration tell you? It tells you the capital is present but unevenly deployed, which is exactly where opportunity tends to cluster.
The broader momentum backs that read. Energy tech apps are clocking median install growth of ~28% YoY, and as clean energy technical assistance findings show, the themes pulling that growth are solar electricity generation, EV battery technology, and next-generation EV platforms. The sector's CAGR is tracking around 7.1%, driven by rising global energy demand and the shift away from paper-based operational records toward digitised production management. I'd watch the investor side too: 4Di Capital and E3 Capital are the names appearing most consistently across early rounds here, which signals where conviction is actually being placed.
- prnewswire.com
Our analysis of 287 Energy Tech companies
$109.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Tech companies in South Africa
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Hydrox Holdings Provider of technology solution for production of hydrogen | $2.3B | 129 mo ago | Late Stage | Corrie Jager Founder & CEO | 2003 | — | — |
| 2 | Cloudline Operator of a platform providing cloud computing and data storage | $6M | 30 mo ago | Seed | Spencer Horne Founder | 2017 | WebflowYouTubeGSAP+17 | 1 partnership |
| 3 | Alien Fuel Group Production of bio oil | $2M | 30 mo ago | Series A | Bruce Johnson Founder & CEO | 2015 | — | — |
| 4 | Open Access Energy Renewable energy management software | $750K | 12 mo ago | Seed | Christoff Albertyn Co-Founder & CTO | 2021 | — | 2 partnerships |
| 5 | BlueNova Manufacturer of energy storage solutions, batteries, and supporting electronic components | $648K | 32 mo ago | Funding Raised | — | 2015 | WordPressZohoMySQL+31 | 1 launch |
| 6 | Zimi EV charging solutions for commercial fleets | $320K | 14 mo ago | Funding Raised | Michael Maas Co-Founder & CEO | 2021 | Webflow EcommerceCart FunctionalityWebflow+14 | 1 job opening |
| 7 | Athena Provider of medical payments management software for healthcare | $250K | 28 mo ago | Seed | Jabulani Nyembe Founder | 2022 | — | 3 partnerships |
| 8 | Plentify Provider of SaaS-driven and AI grid optimisers for building management | $150K | 7 mo ago | Series A | Kailas Nair Co-Founder | 2008 | Cart FunctionalityWooCommerceWordPress+36 | 1 partnership |
| 9 | LetMeIn SaaS-driven visitor management software for offices and apartments | $143K | 66 mo ago | Seed | Jarrad Van Zuydam Co-Founder | 2020 | — | — |
| 10 | Passerine Aircraft Corporation Developer of VTOL aircraft | $120K | 96 mo ago | Seed | Matthew Whalley Founder & CEO | 2017 | — | — |
Top 12 Energy Tech companies in South Africa
#1
Series A · Cape Town, Western Cape · founded 2008 · 42 employees$150Kraised▾
Provider of SaaS-driven and AI grid optimizers for building management. Its device can be attached to home water heaters that use AI to match users' energy needs in the grid. The platform provides solutions for industries that include property companies and body corporates, solar and battery companies, utilities and municipalities, and more.
- Nov 2025Series A—
- Jul 2024Series A—
- Oct 2023Series A—
- May 2023Grant (prize money)—
#2
Seed · Cape Town, Western Cape · founded 2021$750Kraised▾
Renewable energy management software. It is a software platform that streamlines energy transactions from generation to consumption. The platform automates the matching of generation and consumption loads, enabling energy trading and management. It enables municipalities and utilities to access smart meters to collect and interpret data to bill customers.
- Jun 2025Seed$1.8M
- Aug 2024Seed$750K
#3
Funding Raised · Stellenbosch, Western Cape · founded 2021$320Kraised▾
EV charging solutions for commercial fleets. It enables deployment of charging infrastructure and management of charging operations.
- Apr 2025Grant (prize money)$320K
#4
Late Stage · Randburg, Gauteng · founded 2003$2.3Braised▾
Provider of technology solution for production of hydrogen. It offers alkaline water electrolysis solution by developing technology for green decentralised hydrogen production. It specializes in membrane free electrolysis technology offering advanced electrolyzers,hydrogen storage solutions,fuel cell integration and custom hydrogen energy solutions
- Aug 2015Post IPO$64.1M
- Mar 2015Post IPO$34.7M
#5
Seed · Cape Town, Western Cape · founded 2017 · 18 employees$6Mraised▾
Operator of a platform providing cloud computing and data storage. It offers solutions for managing and processing information. The platform provides tools for data analysis and application development. It facilitates secure data management and scalable computing resources.
- Dec 2023Seed$6M
- Jul 2019Grant (prize money)—
#6
Series A · Umhlanga, KwaZulu Natal · founded 2015$2.5Mraised▾
Production of bio oil. It converts solid biomass fuel derived from alien invasive tree species and other wood waste into a efficient, low CO2 emission, green energy source.
- Dec 2023Series A$2.4M
#7
Funding Raised · Somerset West, Western Cape · founded 2015 · 54 employees$648.4Kraised▾
Manufacturer of energy storage solutions, batteries, and supporting electronic components. The company provides battery systems centered around lithium iron phosphate battery chemistry. It offers battery management systems and control modules. The company supplies products to qualified professionals in the energy industry.
- Oct 2023Grant (prize money)$648.4K
#8
Seed · Johannesburg, Gauteng · founded 2022$250Kraised▾
Provider of medical payments management software for healthcare. It offers a platform for medical bill management that enables patients to pay for healthcare in monthly instalments for healthcare surgeries and procedures.
- Jan 2024Seed$150K
#9
Seed · Johannesburg, Gauteng · founded 2020 · 3 employees$143.4Kraised▾
SaaS-driven visitor management software for offices and apartments. It facilitates an API based interface that can be used in any chat app. It also offers a chatbot-based pre-screening risk management dashboard.
- Dec 2020Seed$143.4K
#10
Seed · Johannesburg, Gauteng · founded 2017 · 2 employees$120Kraised▾
Passerine Aircraft develops VTOL aircraft for commercial purposes. The aircraft claims to have multiple features including lift wing (powered by the lift device that offers low stall speed with high cruise speed). Both the aircraft are fixed-wings, have a payload capacity in the range of 6 kg-300 kg, and feature an onboard controller allowing it to be remotely piloted. They are capable of operating without take-off/landing infrastructure and of spot landings & standing take-offs. Claims that the products emulate the landing of Passerine bird i.e. a flared landing and then dropping onto their legs.
- 2018Seed$120K
#11
Seed · Johannesburg, Gauteng · founded 2012$25Kraised▾
Suite provider specializing in smart and secure transactions for diesel wholesales. It offers technology to simplify complex processes and enhance the buying and selling experience in the fuel industry.
- Nov 2012Seed$25K
#12
Deadpooled · Cape Town, Western Cape · founded 2013$18.8Kraised▾
Solid Insight is a web-based application that promotes awareness of the energy use in buildings by integrating Solid Insight into building’s smart metering systems for electricity and water. It provides a live metering interface for display in building foyers and publically online, as well as bespoke building websites where applicable users guides and other desired information (such as developer details and notable building features) are accessible. It also offers an admin dashboard where users can link any SCADA metering systems installed in the building to the database and manage their live metering charts.
- Nov 2016Grant (prize money)$18.8K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.