Hosting
Secure, performant hosting environments tailored to your workloads, with reliability and uptime as first principles.
4oh4 Ltd
Reliable technology for modern operations
We design, build and run resilient platforms — combining robust hosting, infrastructure expertise, custom development, and deep operational visibility.
Hosting
Infrastructure
Development
Zabbix Monitoring
Business-Critical Systems
Linux, Windows Server & macOS
Networking
Legacy Modernisation
Infrastructure
End-to-end infrastructure delivery across public cloud and on-prem estates, covering compute, storage, networking, security baselines, and day-to-day operations.
Development
Practical software engineering for business-critical systems, integrations, and modernisation of legacy applications and technology stacks.
Monitoring
Extensive observability and alerting with Zabbix, giving your team clear visibility into service health and risk.
Platform experience
- Google Cloud Platform (GCP)
- Microsoft Azure
- On-prem infrastructure with Proxmox
- Linux, Windows Server, and macOS environments
- Network design, segmentation, and operational support
Modernisation & delivery
We modernise legacy applications and ageing tech stacks with practical migration paths, reducing operational risk while improving performance, supportability, and long-term maintainability.