Best High Tech Companies in Gauteng, South Africa
The 112 best High Tech companies in Gauteng, South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Contactable.
Our analysis of 1,127 High Tech companies
$222.2b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best High Tech companies in Gauteng
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Contactable Platform offering biometrics identity proofing solutions | $14M | 9 mo ago | Series B | — | 2009 | WordPressMySQLPHP+21 | — |
| 2 | Iot.nxt Open-framework platform for IoT development & solution integration | $8M | 112 mo ago | Acquired | — | 2015 | WordPressMySQLPHP+21 | 1 job opening · 1 launch |
| 3 | AURA Provider of software for personal safety | $5M | 55 mo ago | Series A | Ryan Green Co-Founder | 2017 | WordPressMySQLPHP+24 | 2 partnerships |
| 4 | SyncroPhi Wireless vital signs monitoring system and paperless observation records | $1M | 123 mo ago | Seed | David Toohey CEO | 2007 | — | — |
| 5 | Livestock Wealth Provider of a crowd-farming company for investing in cattle | $565K | 44 mo ago | Seed | — | 2015 | WordPressMySQLPHP+30 | — |
| 6 | GotBot Develops chatbots for customer interaction and response | $171K | 78 mo ago | Seed | Nick Argyros Founder & Managing Director | 2016 | WixSentryBootstrap+23 | — |
| 7 | LetMeIn SaaS-driven visitor management software for offices and apartments | $143K | 66 mo ago | Seed | Jarrad Van Zuydam Co-Founder | 2020 | — | — |
| 8 | Passerine Aircraft Corporation Developer of VTOL aircraft | $120K | 96 mo ago | Seed | Matthew Whalley Founder & CEO | 2017 | — | — |
| 9 | HomeFarm Developer of IoT-powered hydroponic growing systems | $105K | 46 mo ago | Seed | — | 2016 | — | — |
Top 12 High Tech companies in Gauteng
#1
Series B · Centurion, Gauteng · founded 2009 · 29 employees$13.5Mraised▾
Platform offering biometrics identity proofing solutions. The platform is designed to assist users in validating that the real-world identity exists, that the digital identity matches, and that the person making the identity claim also matches. Solutions they offer are customer Ddgital on-boarding, customer digital identity, biometrics multi modal and etc.
- Sep 2025Series B$13.5M
#2
Series A · Johannesburg, Gauteng · founded 2017 · 45 employees$5Mraised▾
Developer of a location security platform designed to make effective location tracking more accessible and affordable. The company's platform provides access to armed responders who can be alerted with a button to activate a distress signal and pinpoint geolocation, enabling users and businesses to respond to an emergency, anywhere, anytime, and access a closely vetted private security and medical response unit to their location.
#3
Acquired · Johannesburg, Gauteng · founded 2015 · 300 employees$7.7Mraised▾
IoT.nxt has an open-framework platform for IoT development & solution integration for cross-industry solutions. Claims to offer features like interoperability, technology agnostic to let business leverage their legacy systems, and API led rapid integration for agile deployment. It is a silver Microsoft partner and has been awarded as a Gartner Aspiring Innovator 2016.
- Feb 2017Series B$7.7M
#4
Seed · Sandton, Gauteng · founded 2015 · 23 employees$564.6Kraised▾
Provider of a crowd-farming company for investing in cattle. It allows users to invest in cattle farms and earn from their investments.
- Sep 2022Seed$564.6K
- Sep 2019Conventional Debt$131.8K
#5
Seed · Sandton, Gauteng · founded 2007 · 7 employees$1.4Mraised▾
Wireless vital signs monitoring system and paperless observation records. Its offerings include KEWS 100, small lightweight sensor modules worn in a disposable pouch that gives the patient freedom to move and give the staff the ability to provide continuous monitoring of body vitals, and KEWS 200, a wireless ambulatory patient vital-signs monitoring with paperless observation records and instant patient review at the point of care, KEWS 300 a CE-marked software suite which supports paperless patient observation rounds and clinical reviews at the point-of-care. When combined with the KEWSpod it provides real-time updates of patient records and instant recall of patient history.
- Mar 2016Grant (prize money)$493.3K
- Aug 2013Seed$1.4M
#6
Seed · Johannesburg, Gauteng · founded 2016 · 9 employees$104.8Kraised▾
Developer of IoT-powered hydroponic growing systems. Its soil-less pod uses a nutrient solution for supporting plant growth. The pod has its own watering and lighting system that requires external water and power supply. The pod can be used to grow a wide variety of herbs, micro-greens, and leafy vegetables whose seeds. Its companion app allows the user to track plant growth and look for recipes.
- Aug 2022Seed$104.8K
#7
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
#8
Seed · Johannesburg, Gauteng · founded 2016 · 12 employees$170.9Kraised▾
GotBot is a chatbot technology company, that claims to use artificial intelligence to help enterprises manage their customer interactions. GotBot's offering is delivered to clients as GotBot Get It (chiefly aimed at retail companies to help them initiate conversations with existing clients for upselling and cross-selling products and services) and as GotBot CustomCare (for replying to client requests).
- Dec 2019Seed$170.9K
#9
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
#10
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
#11
Acquired · Centurion, Gauteng · founded 1985 · 1000 employees—raised▾
Provider of telematics solutions for fleet management and operational optimisation. The company delivers tools for real-time monitoring, performance analytics, and driver management. It offers solutions for fixed and mobile asset tracking, fuel monitoring, and video telematics. The company provides services to industries including transport, mining, agriculture, and government.
#12
Seed · Johannesburg, Gauteng · founded 2016 · 31 employees—raised▾
Paycode offers fingerprint-based authentication solutions for digital identity & payments. It uses biometric digital identity for data assurance, payments, verification, transactions, and more. Its features are offline/online transaction processing, multi-user applications, branchless or agent banking, and more.
- Nov 2020Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of High Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising