KDE e.V. Trusted IT Consulting Firms

In KDE we take pride in being a free software community and having an open, free and fair development process.

However, we also understand that sometimes companies and institutions main priority is not learning the processes of our community and they just want issue solved or a feature implemented. For this reason, we are offering here a list of consultants that have expertise in dealing with the KDE Community and we know will help get your project landed in KDE as best as possible.

We encourage you to contact the consultants directly, but if you feel we can help you, do not hesitate to contact us at consulting@kde.org.

The people currently (2023) handling mail to the consulting list are:

KDE Patrons

Blue Systems

Liberating Software. We work on getting KDE software ready for your devices.


The Qt Company

Our company's name is The Qt Company and we are most recognized and active contributor to Qt Project. We are currently maintaining the commercial rights regarding Qt and working in close co-operation to maintain Qt as open source ecosystem. As part of our company we also offer services around Qt framework which would be natural fit to KDE e.V. due the fact that KDE platform is build using Qt framework.


enioka Haute Couture

Businesses of all kinds have become highly dependent on their IT systems. And yet, many of them have lost control of this essential part of their assets.

enioka Haute Couture specializes in mastering complex software development, be it because of the domain, the organization or the timing of the project.

We work in close collaboration with your own teams to build software tailored to your needs. And if we're developing it ourselves, we go the extra mile to make sure you will keep it under control. We will also help your teams adopt the right organization, technologies and tools. Finally, every time it is suitable, we can help you setup Free and Open Source Software projects or interact with existing ones.

With enioka Haute Couture, you have a trusted provider who facilitates your development needs while keeping full control of your systems. No more vendor or service provider lock-in.


KDE Supporters


KDAB is the world's leading software consultancy for architecture, development and design of Qt, C++ and OpenGL applications across desktop, embedded and mobile platforms. KDAB experts build run-times, mix native and web technologies, solve hardware stack performance issues and porting problems for hundreds of customers, many among the Fortune 500.

KDAB’s founder, Matthias Kalle Dalheimer was one of KDE’s first contributors and was president of KDE e.V. from 2002 to 2005. KDAB continues to be a key supporter of the KDE project, as well as being a major independent contributor to Qt and the driving force behind Qt 3D.

KDAB’s extensive experience in creating, debugging, profiling and porting complex applications, has led to the development of its acclaimed free tools, such as GammaRay, Heaptrack and Hotspot that help developers worldwide to deliver successful projects. KDAB is the market leader in training for Qt, OpenGL, modern C++ and much more.


Other Consulting Firms

Woboq GmbH

Woboq is a company offering services around Qt. Including bugfixes and feature within Qt or other applications.


vizZzion.com (Sebastian Kügler)

I am an independent technical consultant specialized in software developement with Qt, KDE and Linux and embedded systems, available for hire to help developing and improving your products. I am proficient in programming languages such as C++, Python, JavaScript and a few others.

With more than 15 years of experience with Qt, Linux and working in agile software teams, I combine deep technical expertise with outstanding communication skills and a clear head and structured approach to solving technical problems.


Endocode AG

Endocode AG is an employee-owned, software engineering company from Berlin. Open Source is our heart and soul. Endocode’s co-founder, Mirko Boehm has been a contributor to the KDE project since 1997. He was a board member of the KDE e.V. from 1999 to 2006 and continues to contribute to the ongoing development of KDE and the work of the Free Software Foundation Europe. His focus lies on governance and copyright issues.

Endocode focuses on modern software engineering that leverages Open Source tooling and methodologies, such as cloud technology, DevOps methods and tools as well as CI integrated Open Source compliance. We create environments & platforms on private and public clouds to enable fast and reliable software delivery.

As Google Cloud Partner we support companies in leveraging the Google Cloud Platform to it’s fullest abilities.


Rohan Garg

I am a software consultant who specializes in open source technologies. I've worked in the open source software industry for the past 10 years with communities such as KDE, Debian and Ubuntu. I have extensive experience with technologies such as Qt, Debian packaging, Chef, Jenkins and have worked with service providers such as AWS and Digital Ocean.

A large chunk of my recent work involved building automation to help shorten time-to-market for embedded products built with KDE technologies.


CNOSSOS / Adriaan de Groot

I am a software consultant who specializes in Free Software development, with 20 years of experience inside the KDE community. I have worked on communications protocols, applications, licensing, system installers and packaging across a wide range of (Free Software) operating systems. Available for short-term part-time contracts, remote preferred.



Collabora is a leading global consultancy specializing in delivering the benefits of Open Source software to the commercial world. For over 15 years, we've helped clients navigate the ever-evolving world of Open Source, enabling them to develop the best solutions – whether writing a line of code or shaping a longer-term strategic software development plan. By harnessing the potential of community-driven Open Source projects, and re-using existing components, we help our clients reduce time to market and focus on creating product differentiation.



For over a decade, we've been delivering critical, high-performance software projects for international companies in a range of industries including Automotive, Finance, Medical and IoT.

We are experts in Free and Open Source Software (FOSS). We participate upstream and are active contributors to a wide range of cutting edge FOSS projects, processes and cultures.

We help clients and partners take maximum advantage from the knowledge and technologies developed by the FOSS community. Even when source cannot be shared, our teams draw on and benefit from FOSS people, code, processes, insights and values.


Your company on this page

We are more than happy of adding trusted consultants to this page. Please see this page for more information.