The IT backbone for serious businesses in Johannesburg. Cybersecurity, cloud infrastructure & managed IT — built to scale.
From cybersecurity hardening to cloud migration — we deliver the infrastructure that serious companies rely on.
Firewall management, endpoint protection, vulnerability assessments, threat monitoring & email security.
↗High-performance SSD cloud servers from R499/mo. Full root access, 99.9% uptime, scalable on demand.
↗HD camera systems, remote mobile viewing, night vision & recording. Smart surveillance for any premises.
↗Modern business telephony from R199/user. Call routing, voicemail, mobile integration — no legacy hardware.
↗Remote & onsite support, hardware repairs, software troubleshooting & system optimisation.
↗Network design & setup, cabling, switching, WiFi deployment & firewall configuration.
↗Biometric systems, RFID access cards and time & attendance tracking for intelligent premises control.
↗Monthly maintenance, priority support, system monitoring & detailed reporting at a fixed cost.
↗Automate customer engagement 24/7 with a branded AI assistant on WhatsApp. From R499/month.
↗We don't just fix IT problems. We build systems that prevent them — and scale with your ambition.
2-hour SLA response times for critical issues. Remote triage starts in under 15 minutes for contracted clients.
We deploy the same tech used by corporates — Cisco, Fortinet, Ubiquiti — scaled for SME budgets.
Johannesburg-based team. On-ground support when you need it most. No overseas call centres.
Infrastructure designed to grow with you — from 5 to 500 users without ripping and replacing.
Real results from real businesses we've helped secure, connect and scale.
One3 migrated our entire office infrastructure to cloud in 48 hours with zero downtime. Genuinely impressive execution — these guys know enterprise IT.
Their cybersecurity audit found 14 vulnerabilities we didn't know existed. Our previous provider missed all of them. One3 has since become our full-time IT partner.
The VoIP and CCTV installation was seamless. Our 3 branches are now fully integrated. The team was professional, punctual and the pricing was transparent from day one.
24/7 monitoring saved us during a ransomware attempt at 2am. One3's automated response isolated the threat before any data was compromised. Worth every rand.
Every service is engineered for reliability, security, and scale — not just a quick fix.
Protect your business from modern threats with enterprise-grade security solutions. We assess, harden and monitor your entire digital perimeter before attackers find the gaps.
Reliable day-to-day IT support to keep your business running smoothly. From workstation failures to server emergencies — we resolve it fast so your team keeps moving.
Smart surveillance systems for security and visibility. Full IP deployments for offices, retail stores, warehouses and multi-site operations — managed remotely from your phone.
Control who enters your premises with intelligent systems. Replace outdated key systems with auditable, intelligent access control integrated with your HR and security stack.
Build fast, stable, and secure networks. We design and deploy LAN/WAN, structured cabling, enterprise WiFi and firewall solutions for new offices or complete upgrades.
Ongoing support and peace of mind at a predictable monthly cost. Dedicated support hours, proactive monitoring, and guaranteed response times — so you can budget with confidence.
SSD-powered VPS with guaranteed uptime, full root access, and on-demand scaling. Deployed in minutes. Managed by experts.
Ultra-fast NVMe SSD storage for blazing I/O performance. No spinning disks, no bottlenecks.
Redundant infrastructure with automatic failover. Your server stays up — guaranteed.
SSH key auth, firewall rules, DDoS protection, and optional VPN gateway — security-first by default.
Upgrade CPU, RAM and storage without downtime. Scale up for peak periods, scale down to save cost.
All plans include full root access, SSH, Ubuntu/Debian/CentOS, SSD storage and priority support.
Replace your outdated phone system with a cloud PBX that works anywhere — office, home, or on the road.
Route calls by department, time of day, agent skill, or IVR menu. Never miss a customer call.
Voicemails delivered directly to your inbox as audio attachments. Stay on top from anywhere.
Employees use the same extension from home or travel. Full PBX features on any device, anywhere.
Softphone apps for iOS and Android. Your business number rings on your mobile — with full PBX features.
Track call volumes, agent performance, wait times and missed calls. Data to improve customer service.
Connect your PBX to CRM, helpdesk, or ERP. Screen-pop caller info before you even say hello.
One3 Technologies was founded with a single mandate: deliver enterprise-grade IT that growing South African businesses can actually afford and rely on. We're not a call centre. We're a hands-on team of engineers who understand your infrastructure as well as our own.
From Johannesburg's CBDs to Midrand's tech corridors, we've built, secured, and scaled IT environments for logistics companies, financial services firms, retail groups, and everything in between. Our clients don't come to us to fix problems — they come to us to prevent them.
To make enterprise IT accessible and reliable for every serious business in South Africa — without compromise on quality or security.
To be the most trusted IT partner for high-growth businesses across Southern Africa, known for precision, speed and integrity.
A dedicated team of engineers and specialists committed to keeping your business running at peak performance.
IT Specialist · Infrastructure & Automation Expert. Focused on building scalable, secure, and intelligent business systems.
A dedicated team of technicians and specialists ensuring 24/7 uptime, rapid response, and reliable service delivery across all client accounts.
Deploy a branded AI assistant on WhatsApp that handles customer enquiries, qualifies leads and books appointments — 24/7, with zero staff overhead.
No more missed leads after hours. No more staff answering the same questions. Your AI assistant handles it all.
Responds to customer messages instantly, any time of day. Never miss a lead again.
Asks the right questions, captures details and routes hot leads directly to your sales team.
Integrates with your calendar to book, confirm and remind — all on WhatsApp.
Fully customised with your business name, tone of voice, services and FAQ knowledge base.
Track conversations, conversion rates and response times from a central dashboard.
One-time setup fee to build and configure your assistant. Monthly fee covers hosting, maintenance and updates.