Best Energy Companies in Johannesburg, South Africa
The 53 best Energy companies in Johannesburg, South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Pele Energy Group.
Our analysis of 441 Energy companies
$135.1b in tracked funding; 76% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy companies in Johannesburg
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Pele Energy Group Developer of renewable energy projects and community socio-economic development initiatives | $31M | 16 mo ago | Series C | Thapelo Motlogeloa Co-Founder | 2009 | Cart FunctionalitySquarespace CommerceSquarespace+16 | — |
| 2 | Grid Africa Provider of custom solar energy solutions for commercial and industrial clients | $3M | 20 mo ago | Seed | Nigel Mangwiro Co-Founder & CFO | 2015 | — | — |
| 3 | iG3N Provider of solar panel installation services for residential and commercial | $1M | 59 mo ago | Seed | — | 2018 | — | — |
| 4 | Renergen Natural gas and renewable energy investment firm | — | 43 mo ago | Acquired | Stefano Marani CEO | 2014 | WordPressMySQLPHP+24 | 1 job opening |
| 5 | PowerOptimal Manufacturer of solar PV modules | — | 49 mo ago | Seed | — | 2014 | WordPressMySQLPHP+33 | — |
| 6 | Sasol Gulf Integrated energy and chemicals company | — | 85 mo ago | Public | — | 1950 | WordPressApple iCloud MailMicrosoft 365+24 | — |
| 7 | BrightBlack Solar Power project developers for commercial clients | — | 145 mo ago | Seed | Anant kumar Founder | 2003 | — | — |
| 8 | Efora Oil and gas company with integrated upstream, mid stream and downstream operations | — | 149 mo ago | Public | — | 1993 | WordPressMySQLPHP+24 | — |
Top 8 Energy companies in Johannesburg
#1
Series C · Johannesburg, Gauteng · founded 2009$31Mraised▾
Developer of renewable energy projects and community socio-economic development initiatives. The organization focuses on power generation and sustainable development through its linked entities. These entities work together to enhance energy infrastructure with education, skills development, and community investments. The organization aims to drive structural change and foster long-term socio-economic progress.
- Mar 2025Series C$31M
#2
Seed · Johannesburg, Gauteng · founded 2015$2.8Mraised▾
Grid Africa is a provider of custom business solar solutions in South Africa, offering tailored solar energy systems and financing options to support commercial and industrial clients. The company is focused on delivering bespoke solar projects across the country, with a goal of reducing carbon footprint and promoting sustainable energy practices. Grid Africa has secured significant equity investments and has a proven track record of developing and financing successful solar energy projects. The company's solutions aim to address the energy needs of businesses across various sectors, including industrial, commercial, and retail.
- Oct 2024Seed$2.8M
#3
Seed · Johannesburg, Gauteng · founded 2018 · 60 employees$1.3Mraised▾
Provider of solar panel installation services for residential and commercial
- Aug 2021Seed$1.3M
- Dec 2020Seed—
#4
Acquired · Johannesburg, Gauteng · founded 2014 · 69 employees—raised▾
Renergen is an investment firm that acquires and invests in developing natural gas and renewable energy projects in Africa. It claims to have acquired Tetra4, a natural gas, and helium company in 2015.
#5
Seed · Johannesburg, Gauteng · founded 2014—raised▾
Manufacturer of solar PV modules
- Jun 2022Seed—
#6
Public · Johannesburg, Gauteng · founded 1950 · 30100 employees—raised▾
Sasol is an integrated energy and chemicals company with its production facilities in South Africa, Europe, North America, and Asia. The company operates commercial-scale facilities to produce fuels and chemicals from coal in South Africa and is developing ventures internationally to convert natural gas into clean diesel fuel. In 2022, the company recorded annual revenues of $18.78B and a net profit of $2.35B.
#7
Seed · Johannesburg, Gauteng · founded 2003 · 9 employees—raised▾
BrightBlack is a solar power project development company which entered in the solar energy sector in 2013. Services include designing, building, financing, operation, and maintenance of solar energy solutions for the commercial clients.Offers three options to the clients - outright purchase, renting, PPA.Has completed projects with a total production capacity of 6MW.
- 2014Seed—
#8
Public · Johannesburg, Gauteng · founded 1993 · 104 employees—raised▾
Oil and gas company with integrated upstream, mid stream and downstream operations
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Energy Storage in Johannesburg is moving
A read on the academic research around Energy Storage in Johannesburg — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 85 papers.
- University of Johannesburg85
- Photovoltaic system3
- Electric power system3
- Renewable energy3
- Battery (electricity)3
- Supercapacitor2
- Renewable energy19
- Supercapacitor10
- Photovoltaic system9
- Microgrid9
- Battery (electricity)6
- Renewable energy3
- Hydrogen storage2
- Sustainable energy2
- Energy (signal processing)2
- Productivity1
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.