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HRTB is an Oslo-based Norwegian architecture firm known for major public, transport, education, sports, and corporate projects.

Last updated August 31, 2026

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Overview

HRTB AS is an architecture practice headquartered in Oslo, Norway. The firm was established in 1998 as a continuation of Arkitektkontoret Hultberg, Resen, Throne-Holst og Boguslawski, an architectural office founded in 1961. This lineage gives HRTB a history extending beyond its current corporate formation and places it within the development of modern Norwegian architectural practice. The firm’s work spans large-scale public and institutional architecture, transport infrastructure, corporate headquarters, educational facilities, sports venues, and urban projects. Its portfolio includes Telenor Arena, the Hamar Olympic Amphitheatre, the main building of the University of Stavanger, the Akershus University College campus, the 2003 upgrades to Oslo’s Postgirobygget, Statoil’s head office, multiple buildings at Oslo Airport, Gardermoen, and parts of Oslo Central Station. These projects indicate a practice oriented toward technically complex buildings and public-facing environments rather than a narrow residential or interior-design specialization. HRTB’s projects are associated with important Norwegian sites and institutions. Its transport-related work includes buildings at Oslo Airport and interventions at Oslo Central Station, while its institutional portfolio includes university and college campuses. Sports and cultural infrastructure is represented by the Hamar Olympic Amphitheatre and Telenor Arena. Corporate architecture is represented by work for Statoil and the modernization of Postgirobygget. The firm is described as having three partners: Kjell Beite, Harald Lone, and Ola Mowé. No separate parent company, public listing, ticker, or official website is identified in the supplied reference material. HRTB should therefore be understood primarily as a Norwegian professional-services and architecture brand rather than a consumer product brand. Its reputation is grounded in architectural design and delivery for prominent civic, institutional, transportation, sporting, and commercial developments.

History

HRTB AS was established in Oslo in 1998 as the continuation of Arkitektkontoret Hultberg, Resen, Throne-Holst og Boguslawski. The predecessor office had been established in 1961, so the present firm represents a continuation of an architectural practice with roots in the mid-twentieth century. The transition from the earlier office to HRTB preserved that institutional lineage while creating the organization under its current name. The firm developed a portfolio covering several major categories of Norwegian construction. Its work includes large public and institutional commissions, transport facilities, corporate buildings, educational campuses, sports venues, and renovation projects. Among the cited works are the Hamar Olympic Amphitheatre and Telenor Arena, both large-scale venues requiring specialized planning and architectural coordination. HRTB also designed or contributed to the main building of the University of Stavanger and the Akershus University College campus, extending its work into higher-education architecture. Transport and urban infrastructure form another important part of the firm’s history. HRTB worked on several buildings at Oslo Airport, Gardermoen, and on parts of Oslo Central Station. These projects placed the firm in environments where passenger movement, operational requirements, public access, and long-term infrastructure performance are central design considerations. The firm also carried out upgrades to Oslo’s Postgirobygget in 2003, demonstrating experience with the modernization of an existing landmark office building rather than only new construction. HRTB’s corporate work includes the head office of Statoil. Taken together, the firm’s projects show a practice operating across public architecture, education, sports, transportation, commercial offices, and adaptive or modernization work. The firm is identified with three partners—Kjell Beite, Harald Lone, and Ola Mowé—and is based in Oslo. The supplied reference material does not provide further information about ownership, financial performance, international branches, or a current official website.

  • 2003

    Postgirobygget upgraded

    [1]

    HRTB carried out upgrades to Oslo’s Postgirobygget, adding a modernization project to its portfolio of major Norwegian buildings.

  • 1998

    HRTB established

    [1]

    HRTB AS was formed in Oslo as a continuation of the 1961 architectural office.

  • 1961

    Predecessor practice established

    [1]

    Arkitektkontoret Hultberg, Resen, Throne-Holst og Boguslawski, the predecessor practice from which HRTB developed, was established.

Products and positioning

A Norwegian architecture practice focused on substantial public, institutional, transport, sports, and corporate projects, with roots in a long-established Oslo architectural office.

  • Sports and event venue

    Telenor Arena

    A major sports and events venue included among HRTB’s principal works. The project represents the firm’s experience with large public-facing buildings that combine substantial capacity, complex circulation, and venue-specific operational requirements.

  • Sports venue

    Hamar Olympic Amphitheatre

    An Olympic-related amphitheatre in Hamar and one of the firm’s cited major projects. It illustrates HRTB’s involvement in specialized sporting architecture and large civic facilities.

  • Higher-education architecture

    University of Stavanger main building

    The main building for the University of Stavanger, representing HRTB’s work in university architecture and institutional facilities designed for teaching, administration, and campus activity.

  • Higher-education campus

    Akershus University College campus

    A campus project for Akershus University College. The work demonstrates the firm’s ability to address multi-building educational environments rather than isolated structures.

  • Office-building modernization · 2003

    Postgirobygget upgrades

    A 2003 upgrade project for Oslo’s Postgirobygget. It is an example of HRTB’s work on the adaptation and modernization of an existing major office building.

  • Corporate headquarters

    Statoil head office

    A headquarters project for Statoil, showing HRTB’s experience in corporate architecture and the design of large-scale workplaces for a major energy company.

  • Airport architecture

    Oslo Airport, Gardermoen buildings

    Several buildings at Oslo Airport, Gardermoen, included in HRTB’s major works. These projects place the firm within the design of operational transport infrastructure and passenger-oriented airport environments.

  • Railway infrastructure

    Oslo Central Station projects

    Parts of Oslo Central Station were among HRTB’s cited works. The project reflects the firm’s participation in urban rail infrastructure and complex public circulation environments.

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