Best High Tech Companies in Johannesburg, South Africa
The 60 best High Tech companies in Johannesburg, South Africa in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Iot.nxt.
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 Johannesburg
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Iot.nxt Open-framework platform for IoT development & solution integration | $8M | 112 mo ago | Acquired | — | 2015 | WordPressMySQLPHP+21 | 1 job opening · 1 launch |
| 2 | AURA Provider of software for personal safety | $5M | 55 mo ago | Series A | Ryan Green Co-Founder | 2017 | WordPressMySQLPHP+24 | 2 partnerships |
| 3 | GotBot Develops chatbots for customer interaction and response | $171K | 79 mo ago | Seed | Nick Argyros Founder & Managing Director | 2016 | WixSentryBootstrap+23 | — |
| 4 | LetMeIn SaaS-driven visitor management software for offices and apartments | $143K | 67 mo ago | Seed | Jarrad Van Zuydam Co-Founder | 2020 | — | — |
| 5 | Passerine Aircraft Corporation Developer of VTOL aircraft | $120K | 96 mo ago | Seed | Matthew Whalley Founder & CEO | 2017 | — | — |
| 6 | HomeFarm Developer of IoT-powered hydroponic growing systems | $105K | 46 mo ago | Seed | — | 2016 | — | — |
| 7 | Paycode Fingerpint-based authentication solutions for digital identity & payments | — | 68 mo ago | Seed | Gabriel Ruhan CEO & Director | 2016 | Wix eCommerceWixSentry+12 | — |
| 8 | Aerial Monitoring Solutions Custom built unmanned aerial vehicle for commercial and land applications | — | — | Unfunded | Adam Rosman Founder & Managing Director | 2013 | — | — |
Top 7 High Tech companies in Johannesburg
#1
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.
#2
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
#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 · 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
#5
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
#6
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
#7
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
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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.