Our path

From four decades
of hotel practice.

The felix product line started on the first computers to reach the hospitality industry. felixUnity is the AI-native rebuild, developed by the same house that has kept the predecessor running in live operations for more than 40 years.

  1. 1980

    felix begins.

    The felix product line starts on CTM systems in Munich and Salzburg, among the first computer-based hotel solutions in German-speaking Europe.

  2. 1998

    GMS is founded.

    Heinrich and Ulrich Hutter found GMS Softwaremanufaktur in Salzburg. Sepp Lankmayer is on board from the start.

  3. Later

    The management grows.

    Sepp Lankmayer and Markus Reiterer join the management and shape GMS across sales and day-to-day operations.

  4. 2026

    felixUnity goes live.

    The AI-native rebuild of felix runs in the first houses in production, built on four decades of hotel practice.

Management

Four people,
one operation.

GMS is run by four managing directors. They stay reachable for customers, they make the product calls, and they carry the responsibility that felixUnity delivers in daily use.

Heinrich Hutter

Heinrich Hutter

Founder & Managing Director

Sales and commercial responsibility. Point of contact for houses and groups across German-speaking Europe.

Ulrich Hutter

Ulrich Hutter

Founder & CTO

Product and engineering. Owns the technical architecture and the AI foundations of felixUnity.

Sepp Lankmayer

Sepp Lankmayer

Managing Director

On board from the start. Sales and long-standing customer relationships across the Alpine region.

Markus Reiterer, Managing Director, GMS Softwaremanufaktur

Markus Reiterer

Managing Director

Operations and customer projects. Owns onboarding of new houses and day-to-day operational reliability.

The management and a section of the team at GMS Softwaremanufaktur in Salzburg
More than 40 people work on felixUnity in Salzburg. Development, onboarding and support sit in the same house, whoever picks up the phone knows the product.
Why we build what we build

Software has to
deliver in operations.

Three principles have held since 1998. When in doubt, they decide every product question.

Designed around the workflow

We do not judge software by a feature list. What matters is whether an enquiry, a room status or an invoice becomes easier in daily operations.

Control stays with the house

Automation needs clear limits. Roles, approvals and traceable steps are part of the product decision, not an add-on afterwards.

40+ years of hotel practice

We know the operation not from interviews, but from four decades of continuous development with hotels. That experience sits in every decision about felixUnity.

Get to know us
on one of your own workflows.

Bring a real situation from your house. We will show you how felixUnity works with it and which steps stay with your team.