App Development
Native and cross-platform mobile apps that are fast, polished and built to scale with your business.
// Software · ICT · Cybersecurity
We engineer high-tech software & secure business systems.
Grünex builds modern apps, websites, ICT infrastructure and end-to-end digital solutions — backed by penetration testing, managed cybersecurity and ISO 27001 certification. Engineered in South Africa for clients anywhere.
0% custom-built
0/7 secure systems
0° solutions
What we do
End-to-end engineering, under one roof.
From the first line of code to a hardened production system, Grunex delivers the full stack of modern technology services.
Websites & Web Apps
High-performance websites, portals and SaaS platforms with modern design and clean engineering.
ICT Systems
Networks, cloud infrastructure and IT systems designed, deployed and managed for reliability.
Cybersecurity & ISO 27001
Penetration testing, managed security and ISO 27001 certification support. See all →
AI & Automation
Intelligent tools, integrations and workflow automation that remove busywork and unlock data.
Business Solutions
End-to-end digital transformation — strategy, build and support tailored to how you operate.
Cybersecurity & Compliance
Defend, monitor and get ISO 27001 certified.
Grünex secures your business end-to-end — from offensive testing to fully managed protection and the compliance roadmap that gets you certified.
Penetration Testing
Ethical, real-world attack simulations on your apps, networks and infrastructure to find and close vulnerabilities before attackers do.
Premium Managed Cybersecurity
Fully managed, around-the-clock security: continuous monitoring, threat detection, response and reporting — your dedicated SOC-as-a-service.
ISO 27001 Training
Practical, certified information-security training that turns your team into your strongest line of defence and embeds a security-first culture.
GAP Assessments
A clear-eyed audit of your current posture against the ISO 27001 standard — we map exactly where you are and what's needed to close the gaps.
ISO 27001 Certification Support
Hands-on guidance through the full journey — ISMS design, documentation, controls and audit readiness — until your organisation is certified.
Hardening & Incident Response
System hardening, security assessments and rapid incident response to contain, recover from and learn from threats.
Need to get certified or stress-tested?
Talk to our security team →
How we deliver
Solutions built around your business, not the other way around.
We start with your goals, map the technology to fit, and engineer systems that are secure by design and ready for growth.
- Discovery & technical strategy
- Secure, scalable architecture
- Modern UI/UX and clean code
- Cloud deployment & ongoing support
Our process
A clear path from idea to launch.
01
Discover
We learn your goals, users and constraints to define the right solution.
02
Design
Architecture, UX and security planned before a single line ships.
03
Build
Agile engineering with clean code, reviews and continuous delivery.
04
Secure & Support
Hardening, monitoring and ongoing support keep you running.
Why Grunex
Engineering partners you can build a business on.
We combine modern technology with disciplined delivery and a security-first mindset — so what we build lasts.
Security-firstEvery system hardened by design.
Modern stackLatest, proven technologies.
End-to-endStrategy, build and support.
Local & agileSouth African team, global standards.
Let's build
Have a project in mind? Let's make it real.
Tell us about your idea and we'll get back to you with the next steps.
- 📍 330 Surrey Avenue, Ferndale, Randburg, Gauteng 2194, South Africa
- ✉ grunex2025@outlook.com
- ◆ Grünex (Pty) Ltd · Reg 2025/552829/07