We are your IT department.
Founded by Fabian Lessmann to give small businesses enterprise-grade IT without the enterprise complexity. One partner, one platform, complete peace of mind.
My Story
Why I started Stelvion
I spent years working as a developer and IT professional in the German defense sector. That taught me what reliable infrastructure actually looks like and what it takes to keep systems secure. But it also showed me a problem: professional IT is too expensive for most small and medium-sized businesses. And the traditional service providers? Outdated processes, slow response times, and surprise invoices.
Something else stuck with me: it matters where your data lives. If your infrastructure depends on non-European providers, that is a risk, not just for you, but for your customers and theirs. So I set out to build a platform where you can run the services you need, hosted in a secure European environment you actually control.
The idea behind Stelvion is straightforward: a clean interface that does not overwhelm you, a setup that works from day one, and one contact person who knows your business. No ticket queues, no rotating support staff, just someone who takes care of your IT so you do not have to.

Fabian Lessmann
Founder & Managing Director
“Your IT should just work. That is what I am here for.”
Who we work with
Businesses with 1 to 50 employees that need professional IT but do not want to build their own department.
Law Firms & Consultancies
Compliance-ready infrastructure with full GDPR conformity. Your client data stays in German data centers, protected and auditable.
Trades & Craftsmen
Fixed monthly costs, zero technical decisions. We set up your email, file sharing, and business tools so you can focus on your craft.
Small & Medium Enterprises
A complete IT department without the overhead. One contact person who knows your setup and keeps everything running.
Our Promise
What you can count on
Secure, GDPR-Compliant Infrastructure
All servers hosted in certified German data centers. Your data never leaves the EU.
Open-Source Apps as a Subscription
Hosted, maintained, and updated open-source tools for one predictable monthly price, with no license surprises.
Full Transparency
See every running service, every open ticket, and every invoice through the Stelvion platform. No black boxes.
One Dedicated Contact Person
No anonymous ticket system. You get a personal partner who knows your infrastructure and picks up the phone.
Our Values
Eight principles that guide everything we do
Each letter of our name stands for a value we live by every day.
Security
Your data is protected
Transparency
Clear communication, fair prices
European
German data centers, EU law
Long-term
Partnerships, not projects
Reliable
Available when you need us
Individual
Solutions for your situation
Organized
Structured, documented
Approachable
One contact who knows you
What our customers value most
The four things small businesses look for in an IT partner, and exactly what we deliver.
Predictability
Fixed monthly costs, no surprises
Reliability
Always available when you need us
Data Protection
Servers in Germany, GDPR compliant
Simplicity
One platform, one contact person
Let's talk about your infrastructure
Book a free, no-obligation consultation. We'll assess your current needs and show you how Stelvion Systems can simplify your infrastructure.
- No setup fees
- German data centers
- Personal contact from day one