Best Sustainability Tech Companies in Gauteng, South Africa
The 52 best Sustainability Tech companies in Gauteng, South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Matinas BioPharma.
Our analysis of 293 Sustainability Tech companies
$38.4b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Sustainability Tech companies in Gauteng
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Matinas BioPharma Developer of therapeutic solutions for the treatment of serious & life-threatening infections | $16M | 17 mo ago | Public | Jerry Jabbour Chief Executive Officer | 2011 | Vue.jsApache HTTP ServerjQuery+12 | — |
| 2 | Athena Provider of medical payments management software for healthcare | $250K | 29 mo ago | Seed | Jabulani Nyembe Founder | 2022 | — | 3 partnerships |
| 3 | LetMeIn SaaS-driven visitor management software for offices and apartments | $143K | 67 mo ago | Seed | Jarrad Van Zuydam Co-Founder | 2020 | — | — |
| 4 | Clean Carbon Technologies Developer of carbon capture technology systems | $30K | 103 mo ago | Funding Raised | Vivek Nair Co-Founder & CEO | 2014 | — | — |
| 5 | Kudoti Software solutions for waste management | $20K | 46 mo ago | Deadpooled | Gift Lubele Co-Founder & COO | 2018 | — | — |
| 6 | Burnstar Technologies Developer of technology for hydrogen production with carbon sequestration capabilities | — | 32 mo ago | Seed | Johan Brand CEO & Technical Director | 2019 | — | — |
| 7 | Kusini Water Provider of waste water treatment services | — | 55 mo ago | Seed | Murendeni Mafumo Founder | 2016 | WordPressMySQLPHP+16 | — |
| 8 | Brayfoil Technologies Provider of solutions for wind turbines | — | 57 mo ago | Deadpooled | Robert Bray Co-Founder | 2017 | — | — |
Top 9 Sustainability Tech companies in Gauteng
#1
Public · Springs, Gauteng · founded 2011 · 34 employees$16.4Mraised▾
Developer of therapeutic solutions for the treatment of serious & life-threatening infections. The company's lead drug candidate is MAT2203, an orally-administered, encochleated formulation of amphotericin B. It has developed MAT2501, which is an orally-administered, encochleated formulation of amikacin that is a broad-spectrum aminoglycoside antibiotic agent for gram-negative and intracellular bacterial infections. In addition, the Company is exploring development and partnership options for MAT9001, a prescription-only omega-3 fatty acid-based composition under development for hypertriglyceridemia, which has shown superiority versus Vascepa in reducing serum triglycerides, Total- and Non-HDL-Cholesterol, apolipoproteins, and PCSK9 levels.
- Feb 2025Post IPO$1.6M
- Nov 2020Grant (prize money)$3.8M
- Jan 2017Post IPO$15.5M
- Sep 2016Post IPO$8M
#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 · Johannesburg, Gauteng · founded 2018 · 3 employees$20Kraised▾
Software solutions for waste management. Its platform digitizes and automates waste management operations and manage all waste activities and stakeholders such as clients, orders or schedules and drivers in one place.
- Sep 2022Seed$20K
#5
Funding Raised · Pretoria, Gauteng · founded 2014 · 4 employees$29.7Kraised▾
Clean Carbon Technologies has developed carbon capture technology systems which convert waste effluent gases into carbon nanotubes(CNT) aggregates, polymers, resins, and sheets. Offers carbon conversion reactors which have a production capacity of 1kg per hour and multi-walled nanotubes. Can be used in aviation, space industry, computers, and military applications.
- Dec 2017Grant (prize money)$29.7K
#6
Seed · Johannesburg, Gauteng · founded 2019—raised▾
Developer of technology for hydrogen production with carbon sequestration capabilities. The technology converts methane into hydrogen and solid carbon, eliminating carbon dioxide emissions. The process requires no downstream treatment, producing hydrogen ready for immediate use. The technology offers methane conversion and built-in sequestration.
- Nov 2023Seed—
#7
Seed · Johannesburg, Gauteng · founded 2016 · 20 employees—raised▾
Provider of waste water treatment services
- Dec 2021Seed—
#8
Deadpooled · Johannesburg, Gauteng · founded 2017 · 9 employees—raised▾
Provider of solutions for wind turbines. It uses morphing wing technology to improve efficiency gains and cost reductions. It also provides solutions for the aerospace, sailing, and automotive industries.
#9
Series A · Johannesburg, Gauteng · founded 2007—raised▾
Real estate investment company
- May 2008Series A—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Climate Adaptation is moving in South Africa
A read on the academic research around Climate Adaptation — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 289 South Africa-affiliated papers.
- University of Cape Town36
- University of KwaZulu-Natal30
- University of the Witwatersrand24
- University of Pretoria23
- University of Johannesburg22
- Climate risk4
- Climate change4
- Vulnerability (computing)3
- Psychological resilience3
- Urban resilience3
- Climate change4→21
- Resilience (materials science)5→12
- Environmental resource management1→7
- Sustainability3→7
- Adaptation (eye)1→5
- Climate change25→81
- Psychological resilience8→42
- Resilience (materials science)8→36
- Climate resilience3→24
- Corporate governance1→16
Where climate adaptation 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.