Best Energy Efficiency Tech Companies in South Africa
The 46 best Energy Efficiency Tech companies in South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Athena.
Our analysis of 50 Energy Efficiency Tech companies
$7.8b in tracked funding; 86% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Efficiency Tech companies in South Africa
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Athena Provider of medical payments management software for healthcare | $250K | 30 mo ago | Seed | Jabulani Nyembe Founder | 2022 | — | 3 partnerships |
| 2 | Plentify Provider of SaaS-driven and AI grid optimisers for building management | $150K | 8 mo ago | Series A | Kailas Nair Co-Founder | 2008 | Cart FunctionalityWooCommerceWordPress+36 | 1 partnership |
| 3 | LetMeIn SaaS-driven visitor management software for offices and apartments | $143K | 68 mo ago | Seed | Jarrad Van Zuydam Co-Founder | 2020 | — | — |
| 4 | Solid Insight Meter monitoring in buildings | $19K | 117 mo ago | Deadpooled | Tyrone Wilson Co-Founder | 2013 | — | — |
| 5 | 4Ward Design Provider for project management services for building automation system upgrades | — | — | Unfunded | Darryl Katz Founder | 2003 | — | — |
| 6 | Able-Energy Energy management platform for enterprises | — | — | Unfunded | Nkosinathi Sibiya Co-Founder & CEO | 2017 | — | — |
| 7 | Absolute Energy Solutions Provider of smart metering solutions | — | — | Unfunded | Sol Cowan CEO | 2008 | BootstrapYouTubeGSAP+5 | — |
| 8 | AssetPool Provider of digital inspection software for asset and compliance management | — | — | Unfunded | Michael Kirk Founder | 2004 | HubSpot CMS HubAmazon Web ServicesSwiper+21 | 1 launch |
Top 4 Energy Efficiency 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 · 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
#3
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
#4
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 Efficiency Tech coverage by sub-theme.
Regulatory-risk over time flat
Funding & growth over time
funding flat · growth rising
How research on Energy Efficiency & Buildings is moving in South Africa
A read on the academic research around Energy Efficiency & Buildings — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 233 South Africa-affiliated papers.
- University of Johannesburg39
- Tshwane University of Technology35
- Cape Peninsula University of Technology25
- University of Pretoria24
- Central University of Technology22
- Energy management system1→9
- Smart grid1→7
- Renewable energy2→5
- Energy management7→28
- Microgrid2→22
- Renewable energy7→27
- Energy management system5→20
- Energy storage1→10
- Energy management1→6
- Energy management system1→4
Where energy efficiency is researched across South Africa
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
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.