Best Solar Energy Companies in Gauteng, South Africa
The 49 best Solar Energy companies in Gauteng, South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: SolarAfrica.
Our analysis of 100 Solar Energy companies
$30.5b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Solar Energy companies in Gauteng
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | SolarAfrica Provider of financial services for solar PV systems | $107M | 6 mo ago | Series B | James Irons Co-Founder | 2011 | WordPressApple iCloud MailMicrosoft 365+41 | — |
| 2 | Pele Energy Group Developer of renewable energy projects and community socio-economic development initiatives | $31M | 17 mo ago | Series C | Thapelo Motlogeloa Co-Founder | 2009 | Cart FunctionalitySquarespace CommerceSquarespace+16 | — |
| 3 | Hohm Energy Provider of renewable energy producer and solar installation & services | $8M | 29 mo ago | Seed | Tim Ohlsen CEO | 2013 | — | — |
| 4 | Grid Africa Provider of custom solar energy solutions for commercial and industrial clients | $3M | 21 mo ago | Seed | Nigel Mangwiro Co-Founder & CFO | 2015 | — | — |
| 5 | iG3N Provider of solar panel installation services for residential and commercial | $1M | 60 mo ago | Seed | — | 2018 | — | — |
| 6 | PowerOptimal Manufacturer of solar PV modules | — | 49 mo ago | Seed | — | 2014 | WordPressMySQLPHP+33 | — |
| 7 | BrightBlack Solar Power project developers for commercial clients | — | 145 mo ago | Seed | Anant kumar Founder | 2003 | — | — |
| 8 | Amandlaeng Provider of electrical and electronic engineering, energy management, and renewable solutions | — | — | Unfunded | — | 2012 | — | — |
Top 7 Solar Energy companies in Gauteng
#1
Series B · Centurion, Gauteng · founded 2011 · 76 employees$106.8Mraised▾
SolarAfrica provides solar PV systems on a rent-to-own basis for residential and commercial units. Partners with solar installers who install and operate systems which the company owns, manages and finances. Operates in places like Kenya, Ghana, Nigeria, Namibia and others.
- Jan 2026Conventional Debt$91.8M
- Sep 2024Series B$15M
#2
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
#3
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
#4
Seed · Sandton, Gauteng · founded 2013 · 101 employees$8Mraised▾
Provider of renewable energy producer and solar installation & services
- Feb 2024Seed$8M
#5
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—
#6
Seed · Johannesburg, Gauteng · founded 2014—raised▾
Manufacturer of solar PV modules
- Jun 2022Seed—
#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—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Solar Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Solar Photovoltaics is moving in South Africa
A read on the academic research around Solar Photovoltaics — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 411 South Africa-affiliated papers.
- University of Johannesburg76
- University of Fort Hare35
- Cape Peninsula University of Technology34
- Stellenbosch University32
- Durban University of Technology32
- Photovoltaic system13
- Renewable energy10
- Solar cell10
- Solar energy8
- Energy conversion efficiency6
- Photovoltaic system95
- Solar energy82
- Renewable energy73
- Solar cell43
- Perovskite (structure)22
- Renewable energy25
- Solar energy23
- Photovoltaic system22
- Electricity9
- Environmental economics7
Where solar pv 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.