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About KO GmbH

KO GmbH is a consulting company with highly regarded experts in software development. Among our high-profile customers are Nokia, Intel, SKF, Jolla and the Dutch Government. We offer our services around the following areas of expertise:

  • Qt and QML
    We breathe and live Qt and most of our projects, mobile and desktop are developed using the Qt toolkit. Our software engineers have many years of in-depth experience with working with Qt, both C++ and QML. We are available for larger and smaller projects or for expert consultancy and training!
  • Web and Mobile
    KO has developed several web and mobile applications using HTML5 and JavaScript. We have developed WebODF, a non-destructive, non-converting OpenDocument editor and document viewer. See for more information.
  • Krita Studio
    Krita is an advanced 2D painting application for professional artists and VFX studios. KO GmbH offers commercial support and development consultancy for Krita.
  • The Calligra Suite
    Calligra is a suite of flexible office applications and components. KO GmbH provides Calligra for custom solutions such as. office applications for smartphones and tablets or as built-in document generation components for in-house applications. Calligra has been used in Nokia's N900 and N9 phones and Jolla's Sailfish OS as the standard document viewer application. Calligra is also the core reporting component in SKF's Orpheus modelling application.

About the Founders

  • CEO: Tobias Hintze

    Tobias founded his first own company in 2000, focusing on maintenance for computer networks and some smaller software developing projects. Later, he founded "threllis GmbH" in 2006 as sole shareholder as an IT company selling services and equipment for IT infrastructures, including NOC-services like hosting and colocation. Tobias has his technical expertise mainly in UNIX-systems, networking, and security.

  • CTO: Boudewijn Rempt

    Boudewijn has a MA in comparative linguistics from Leyden University in Holland. He founded Kura, an Open Source application for this field, currently maintained at the Ludwig Maximilians Universität in München. His career in the IT industry has put him in positions as a developer, architect and project lead on such diverse projects as a mobile agent platform, traffic analysis and interactive computer graphics.

  • Sales & Marketing: Inge Wallin

    Inge has a M.Sc. in Computer Science from Linköping University in Sweden. He co-founded Cendio AB in 1992, a company which today is the oldest Open Source company in the world, at least as far as he knows. Inge worked as CEO for 9 years and is now a senior systems engineer. He is a member of the board of directors of Cendio AB and previously Ingate Systems AB, a leading vendor of firewalls.