About us

Small enough to be personal. Strong enough for big projects.

Proplex GmbH is a digital agency from Villach in Carinthia, Austria, founded by Christoph Steiner and Lukas Stattmann. We build websites, web apps, mobile apps and custom software – personally, quickly and with high standards.

Christoph Steiner and Lukas Stattmann, the founders of Proplex

Who we are

Young at heart. Experienced in craft.

Proplex is Christoph and Lukas – and more than 15 years of experience with websites, software and apps. We're a young team, always on the pulse of time, and we've still seen enough projects to know what works in practice.

We don't sell what sounds trendy, but what your business really needs. Sometimes that's a new website, sometimes a small automation – and sometimes we tell you honestly that something isn't worth it.

Our clients are businesses from Carinthia and across the DACH region, from tourism and trades to industry. We're based in Villach, quickly on site and just as quickly on the phone.

In numbers

clients: 70+
projects delivered: 350+
years of experience: 15+
lines of code – hand-written, counted in our repositories: 1,000,000+
clients in Austria, Germany and across the DACH region: DACH

In the age of AI

Anyone can use AI today. The difference is who uses it securely, compliantly and maintainably – and who is still there for you afterwards.

We work with AI every day – as a tool, not as a substitute for experience. This is what we watch in every project:

Secure
Your data stays where it belongs. Nothing goes to third parties unasked; access and permissions are set up properly.
Compliant
GDPR and the EU AI Act are never an afterthought. We check, label and document what's needed.
Maintainable
Clean, tested code instead of clicked-together experiments – so your solution still runs in three years.
Accountable
We're your contact for everything digital. You focus on your day-to-day business, we take care of the rest.

Founders

Your direct contacts.

No hotline, no ticket queue: you talk to the people who build your project. Write or call – we don't bite.

Christoph Steiner
Managing director & founder
Email Christoph Steiner Call Christoph Steiner
Direct contact: Ing. Christoph Steiner
christoph.steiner@proplex.io +43 677 61404006
Lukas Stattmann
Managing director & founder
Email Lukas Stattmann Call Lukas Stattmann
Direct contact: Lukas Stattmann, M.Sc.
lukas.stattmann@proplex.io +43 680 1415781

What we stand for

Six things you can count on.

One contact for everything
Website, app, AI, hosting or email: you have one number to call – and people who know your project.
People, not a ticket system
No robot working through tasks. When something's on fire, we're there right away – personally and with passion.
We sell what you need
Honest assessments of cost, time and benefit. Even if that means selling less.
AI with good sense
We use AI where it saves you time – secure, compliant with the GDPR and the AI Act, and clearly labelled.
Young and experienced
More than 15 years of practice, today's technology: Next.js, React, React Native and AI tools we use ourselves every day.
Own ideas, own products
We build our own apps like Plexbook and actively bring that experience and fresh ideas into your project.

Network

Our network.

For design, content, marketing and extra development capacity we work with experienced freelancers and agencies from the region.

Marvin SablattnigDevelopment
Peter WeilharterFreelancer, development
Tobias DomanigFreelancer, development
Manuel KussLumaplexSEO & marketing – Website of Lumaplex (opens in a new tab)
Luca BrunnerWellermadeFreelancer, social media – Website of Wellermade (opens in a new tab)
Karin & BibibibidesignContent & design (external) – Website of bibidesign (opens in a new tab)
Werbeagentur InfrastilDesign – Website of Werbeagentur Infrastil (opens in a new tab)

Client voices

What clients say about us.

“Top service and absolutely recommendable! Creating our website was professional, fast and straightforward. Every wish was taken into account and the result exceeded our expectations. Very friendly support, creative execution and excellent quality. Many thanks for the great collaboration!”
Stephanie HagauerHagauer GmbHReview on Google · Translated from German
“We are absolutely thrilled with our new website! The service is truly outstanding – the team works incredibly fast, always finds quick solutions to our needs and has perfectly fulfilled every single one of our wishes so far. Highly recommended!”
Gerlitzen AlpeSkigebiet & BergbahnenReview on Google · Translated from German
“Working with Proplex was simply great from start to finish. You can tell right away that the work is done with passion and real expertise. Communication, reliability and quality are spot on across the board – everything ran smoothly and completely professionally.
What I liked most was how easy and friendly it was to work together. You really feel well looked after and taken seriously. The result exceeded my expectations, and I'm already looking forward to more projects together.
A company you can recommend with a completely clear conscience!”
Michael KanduthSemicoreReview on Google · Translated from German
“We are very happy with our new website. The feedback from our customers is very good.”
Gudrun GreilerSägewerk GreilerReview on Google · Translated from German
“Proplex has already delivered more than 12 projects for us, from websites to product brochures, back-office systems (route planner) and business cards. We are truly very, very satisfied and can't imagine switching to another agency. Great quality and a really nice team!”
Seebacher HolzHolzbau & ZimmereiReview on Google · Translated from German
“I have been working with Lukas for years. Whether it's routine matters or we need Proplex's support for custom applications, the team is simply top-notch and exactly the partner you want by your side.”
VictoriaSölle SportReview on Google · Translated from German