Professional installation on your infrastructure – on-premise, cloud or hybrid
On-Premise
In your data center
Cloud Installation
AWS, Azure, Hetzner & more
Security Setup
VPN, SSO, Hardening
Professional installation where you need it
Installation on your own hardware in your data center or server room
Installation on your cloud infrastructure at AWS, Azure, Google Cloud or Hetzner
High-availability setup with comprehensive security and compliance features
Secure access and access control for your installation
WireGuard, NetBird or Tailscale
Keycloak, Authentik, Azure AD
TOTP, WebAuthn, YubiKey
Fail2Ban, Rate Limiting, IP Whitelisting
We set up secure VPN access to your installation – ideal for remote work and external employees.
Invoice creation with customizable templates, multi-currency and PDF export
Time tracking for projects with automatic invoicing
Integration of payment gateways like Stripe, PayPal and more
Self-service portal for clients with document access and payment options
Automatic recurring invoices for subscriptions and contracts
Detailed reports on revenue, expenses and profitability
Full-service installation with no hidden costs
Expertise that moves you forward
We have successfully implemented dozens of enterprise installations and know all best practices.
Comprehensive security hardening following OWASP, including VPN access, firewall configuration and audit logging.
We rely on open-source software and avoid vendor lock-in – you retain full control over your data.
Whether AWS, Azure, Google Cloud, Hetzner or on-premise – we install where you need it.
You get a dedicated contact person who supports you during and after installation.
Your installation runs on your infrastructure – you are always independent and can continue operating the solution yourself.
Good choice – we'll help you get started or with operations.
Discover all features, use cases and managed hosting options for InvoiceNinja
Go to InvoiceNinja Overview
Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.
Trusted by leading companies
Timo Wevelsiep & Robin Zins
CEOs of WZ-IT
