What Arkitektkontoret Gasa does

Arkitektkontoret GASA AS is a privately held Norwegian architecture firm headquartered in Oslo (Møllergata 12), founded in 1980 by Per Monsen and Espen Dahl as "Gruppe Av Samarbeidende Arkitekter" (Group of Collaborating Architects). The firm operates as an equal partnership ("aksjeselskap") with 9 co-owners, all of whom are Sivilarkitekt MNAL (chartered architects) and active employees, supported by a total staff of approximately 22 including 2 pensionists. There is no external investor, parent company, or public listing.

GASA delivers full-service architecture across five service categories: schools and sports facilities, kindergartens, residential housing, commercial/cultural buildings, and planning/place development. Its technical differentiator is a 45-year accumulated expertise in sustainable design, including environmental programming (miljøprogrammer/miljøplaner) dating to the early 1980s, BREEAM-NOR certification delivery (multiple "Very Good" and passivhaus projects), and Miljøfyrtårn compliance for its own operations. The project portfolio includes award-winning public buildings such as Hartvig Nissen VGS, Fjellhamar Skole og Arena, Holmenveien Barnehage, and Pilestredet Park.

The business model is project-based professional services revenue from fixed-fee contracts negotiated per project. Work is acquired primarily through architectural competitions and direct commissions from Norwegian municipalities (Oslo, Lørenskog, Eidsvoll, Gjerdrum, Sogndal, Stavanger, etc.), municipal building agencies (Oslobygg KF, Undervisningsbygg Oslo KF, Omsorgsbygg Oslo KF), and — to a lesser extent — private developers and housing cooperatives (Skanska Eiendom, Solon Eiendom, USBL, Bondistranda Utvikling). Pricing is project-specific; no public pricing schedule is disclosed. Marketing is portfolio-driven: competition wins, project website (gasa.no), professional referrals, and sustained award recognition (OMA Award 2025, Oslo Bys Arkitekturpris, Statens Byggeskikkpris, Glassbjørnen, Houens Fonds Diplom). The firm is regionally concentrated in Norway, with project presence across Oslo, Akershus, Østfold, Rogaland, Vestland, Vest-Agder, and Innlandet counties, but does not claim international operations.

Name

Arkitektkontoret Gasa

Legal name

Arkitektkontoret GASA AS

Website

https://gasa.no

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

11–50 employees

Short description

Privately held Norwegian architecture firm (founded 1980, Oslo, ~22 staff, 9 equal co-owner architects) specializing in sustainable design (BREEAM-NOR, passivhaus) of schools, kindergartens, sports facilities, residential, and cultural buildings primarily for Norwegian municipal clients.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Interior Design Services (54141), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Interior Design Services (BPAHAKAB), Community Engagement & Participatory Planning (BPAHAKAO)

Keywords

• Architectural design services
• Sustainable building design
• Urban planning services
• Educational facility design
• Building rehabilitation services

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Arkitekturprosjektering og planlegging (Architecture Design and Planning): GASA generates revenue through fees for architectural design and planning services across all project phases, from feasibility studies and regulatory planning through to construction supervision. Projects include public-purpose buildings (schools, kindergartens, sports facilities) and private residential/commercial developments. Revenue is project-based, typically fixed-fee contracts for defined scopes.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Arkitektkontoret GASA AS is a Norwegian architecture firm providing full-service architectural design and planning from feasibility studies through construction supervision. The firm delivers buildings and master plans across schools, kindergartens, sports facilities, residential developments, commercial/cultural buildings, and urban planning, with particular emphasis on sustainable design, BREEAM-NOR certified and passive house-standard projects, and adaptive reuse of heritage buildings. Services are organized into five practice categories: Skoler og idrett, Barnehager, Boliger, Næring og kultur, and Plan og stedsutvikling.

Product overview

Arkitektkontoret GASA AS is an architectural firm (GASA = Gruppe Av Samarbeidende Arkitekter / Group of Collaborating Architects) offering comprehensive architectural services through five main service categories: Skoler og idrett (Schools and Sports), Barnehager (Kindergartens), Boliger (Residential Housing), Næring og kultur (Commercial and Cultural Buildings), and Plan og stedsutvikling (Planning and Place Development). The firm specializes in sustainable design, resource-efficient construction, and community-focused development. Projects range from kindergartens, schools, sports facilities, and residential complexes to commercial buildings and urban planning. The portfolio includes notable projects such as Holmen skole, Fjellhamar skole og Arena, Ruseløkka skole, Forum Expo, Pilestredet Park, and Klosterenga. The firm employs approximately 21 architects and operates from offices in Oslo.

Differentiator

Problem solved

Functional benefit

Products and services

• Skoler og idrett (Schools and Sports) Architectural design services for schools and sports facilities, including elementary schools, upper secondary schools, gymnasiums, and multi-purpose halls. Services span new construction, rehabilitation, and transformation of existing school buildings, delivered primarily to Norwegian municipalities and their building agencies.
• Barnehager (Kindergartens) Kindergarten design services creating learning environments that also provide children with a sense of security. Buildings are designed to be easy to operate, attractive as workplaces, and inspiring for users and surroundings, with projects ranging from small-scale to large 13-section facilities.
• Boliger (Residential Housing) Residential housing design with focus on creating good living environments with alternative and innovative solutions. Notable projects include Pilestredet Park (~550 apartments), Klosterenga (35 apartments), and Bondistranda (208 apartments), delivered to private developers and housing cooperatives.
• Næring og kultur (Commercial and Cultural Buildings) Commercial and cultural building projects including offices, laboratories, workshops, public areas, and exhibition halls. The most prominent project is Forum Expo in Stavanger (9,600 m2 exhibition hall, Lavenergiklasse A), with additional projects including the Haraldrud gjenbruksstasjon (recycling station) and Veolia.
• Plan og stedsutvikling (Planning and Place Development) Strategic planning and place development services including both overarching and detailed spatial planning, focusing on flexible, future-oriented, and sustainable solutions. Services cover municipal and private land development, area planning, rezoning applications, and master planning for new neighborhoods.
• Bygningsvern og rehabilitering (Building Conservation and Rehabilitation) Building preservation and rehabilitation services including renovation of heritage buildings, adaptive reuse, and transformation projects. Notable projects include Hartvig Nissens Skole (2018-2025, OMA Award 2025 for årets transformasjonsprosjekt) and Majorstuen Skole (2007-2015).

Quantifiable outcome

• Fjellhamar Skole og Arena: Winner of Årets skolebygg 2025 (Nohrcon) and Lørenskog kommunes arkitekturpris 2023
• +8 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

24 partnerships are on record, tiered core, minor and major.

• Gjerdrum KommunecoreStrategic or Co-development Partner · 1 January 2024Gjerdrum Municipality is commissioning GASA for the Oppvekstjordet project comprising a primary school (420 pupils), kindergarten (120 children), and sports facility with multi-purpose hall and football pitch. The project (ongoing from 2024) is the municipality's largest investment and aims to benefit all residents through new public spaces and mobility solutions.
• VedalcoreImplementation/ SI/ Consulting Partner · 1 January 2024Vedal is the main contractor for Ellingsrud Skole expansion project (ongoing from 2015).
• Bar BakkeminorImplementation/ SI/ Consulting Partner · 1 January 2024Bar Bakke was the landscape architect for Gjerdrum Oppvekstjordet project.
• Oslobygg KFcoreStrategic or Co-development Partner · 1 January 2018Oslobygg KF is the municipal building agency of Oslo Municipality and is a key client for GASA. The firm has delivered multiple major projects for Oslobygg including Hartvig Nissens Skole (2018–2025), Oslo Katedralskole extension (2009–2013), and Majorstuen Skole rehabilitation (2007–2015). The relationship involves multi-phase project delivery from feasibility through construction.
• Lørenskog KommunecoreStrategic or Co-development Partner · 1 January 2018Lørenskog Municipality commissioned GASA for Fjellhamar Skole og Arena (2018–2023), one of the firm's largest and most awarded projects, including a primary school (18,000 m2), sports building (14,000 m2) with double multi-purpose hall and swimming pool. The project won Årets skolebygg 2025 and Lørenskog municipal architecture prize 2023.
• SkanskacoreImplementation/ SI/ Consulting Partner · 1 January 2018Skanska Norway is the main contractor for GASA's Gjerdrum Oppvekstjordet project. GASA has worked with Skanska on multiple projects including Holmenveien Barnehage (as part of a consortium with Nordic Office of Architecture). Skanska provides construction execution while GASA provides architectural design.
• Betonmast RomerikecoreImplementation/ SI/ Consulting Partner · 1 January 2018Betonmast Romerike was the main contractor for Fjellhamar Skole og Arena project, executed as a total contract.
• Hartvig Nissens Skole / Oslobygg KFcoreStrategic or Co-development Partner · 1 January 2018Hartvig Nissens VGS transformation project (2018–2025) involved preservation, rehabilitation, and new construction for a school with 770 students. The project won OMA Award 2025 and Oslo Arkitektforeningens Arkitekturpris 2026. GASA managed all phases from feasibility through construction.
• LandskaperietminorImplementation/ SI/ Consulting Partner · 1 January 2018Landskaperiet was the landscape architect for the construction phase of Hartvig Nissens Skole project.
• Eidsvoll KommunecoreStrategic or Co-development Partner · 1 January 2017Eidsvoll Municipality commissioned GASA for Råholt Skole og Flerbrukshall (2017–2022), a 3-parallel primary school for 644 pupils plus multi-purpose hall. The project was developed in accordance with BREEAM-NOR Very Good, with solar panels on roof and facade.
• Filter ArkitekterminorImplementation/ SI/ Consulting Partner · 1 January 2016Filter Arkitekter was a partner in the Tvedestrand Videregående Skole competition project (2016), 20,000 m2 BTA.
• GrindakerminorImplementation/ SI/ Consulting Partner · 1 January 2016Grindaker was the landscape architect for Tvedestrand Videregående Skole project (2016).
• NorconsultminorImplementation/ SI/ Consulting Partner · 1 January 2016Norconsult was the landscape architect for Rustad Skole expansion project (ongoing from 2020).
• Vestli Skole (Oslo Kommune)coreStrategic or Co-development Partner · 1 January 2015GASA delivered Vestli Skole og flerbrukshall (2015–2021), a new 4-parallel 1–7 school for 840 pupils plus special class and multi-purpose hall, 10,800 m2 BTA. The school is designed as a passivehouse and low-energy building.
• Østengen & BergomajorImplementation/ SI/ Consulting Partner · 1 January 2015Østengen & Bergo AS is a landscape architecture firm that has collaborated with GASA on multiple award-winning projects including Fjellhamar Skole og Arena, Gjerdrum Skole, and Perleporten (Asker). The partnership covers landscape design for urban development and school projects.
• RambøllminorImplementation/ SI/ Consulting Partner · 1 January 2015Rambøll was the landscape architect for Ruseløkka Skole project (2015–2021).
• Asplan ViakminorImplementation/ SI/ Consulting Partner · 1 January 2015Asplan Viak was the landscape architect for Ellingsrud Skole expansion (ongoing from 2015) and the Haugerud og Trosterud Schools project.
• Undervisningsbygg Oslo KFcoreStrategic or Co-development Partner · 1 January 2014Undervisningsbygg Oslo KF (Oslo School Buildings Agency) commissioned Holmen Skole (2014–2018), a new 3-parallel primary school with special needs facilities, for 10,700 m2 BTA. The project was nominated for Årets bygg 2018.
• VeidekkecoreImplementation/ SI/ Consulting Partner · 1 January 2014Veidekke Entreprenør was the main contractor for Holmen Skole (partnering contract) and Ruseløkka Skole. GASA has collaborated with Veidekke on multiple school projects, with close cooperation between client, designers, and contractors during construction.
• Bjørbekk & Lindheim LandskapsarkitektermajorImplementation/ SI/ Consulting Partner · 1 January 2014Bjørbekk & Lindheim has collaborated with GASA on projects including Atelierhagen (Bondivann, Asker), Gullhellinga, Sagtomta (Mysen), and Askeveien Barnehage. The partnership provides landscape architectural services for residential and educational projects.
• Nordic Office of Architecture ASmajorImplementation/ SI/ Consulting Partner · 1 January 2012Nordic Office of Architecture collaborated with GASA and contractor MT Højgaard on Holmenveien Barnehage (2012–2015), a 13-section kindergarten in Oslo. GASA led the project with Nordic providing additional architectural capacity.
• Askim og Lantto Arkitekter ASmajorImplementation/ SI/ Consulting Partner · 1 January 2009Askim og Lantto collaborated with GASA on Forum Expo in Stavanger (2009–2014), Folkets Hus i Sauda, and Husabøryggen residential project in Stavanger. The partnership involves shared design responsibility on major projects.
• Tegn 3minorImplementation/ SI/ Consulting Partner · 1 January 2009Tegn 3 was the landscape architect for the regulatory planning phase of Hartvig Nissens Skole project.
• Lund & Slaatto BoligmajorImplementation/ SI/ Consulting Partner · 1 January 2000Lund & Slaatto Bolig partnered with GASA on Pilestredet Park (2000–2007), one of Norway's largest environmental projects with approximately 550 apartments. GASA was responsible for environmental follow-up and reporting in the project group and led fields H and K1/K2.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Nordic Office of Architecture: Large Norwegian architecture firm with deep public-sector expertise in schools, kindergartens, and civic buildings. Directly comparable: GASA actually partnered with Nordic on Holmenveien Barnehage, and the two compete head-to-head for the same municipal commissions.
• Link Arkitektur: Norwegian-headquartered, Nordic-region architecture firm with strong public-sector portfolio in schools, kindergartens, and urban planning. Directly comparable to GASA on customer base, project types, and competition dynamics for municipal commissions across Norway.
• LPO Arkitekter: Oslo-based architecture firm with strong residential and public-sector portfolio and similar project scale to GASA. Comparable in customer mix (housing cooperatives, developers, municipalities) and emphasis on sustainable, context-sensitive design.
• DARK Arkitekter: Norwegian architecture firm focused on sustainable design, schools, and public buildings. Comparable to GASA in environmental design emphasis and competition for the same BREEAM-certified municipal commissions.
• Hille Melbye Arkitekter: Oslo-based architecture firm with strong public-sector and educational building portfolio. Directly comparable to GASA in size, customer mix (Oslo-area municipalities, developers), and design philosophy around sustainability and context-driven architecture.
• Ratio Arkitekter: Oslo-based architecture firm of similar scale to GASA with comparable public-sector and residential portfolio. Directly comparable on competition dynamics and customer overlap in the Norwegian architecture market.
• Lund & Slaatto Arkitekter: Long-established Oslo architecture firm with parallel historical work on residential housing projects and public commissions. GASA previously partnered with Lund & Slaatto Bolig on Pilestredet Park; both firms serve similar client bases in the Oslo market.

Broad incumbents

• Snøhetta: Global Norwegian-headquartered architecture and design firm that competes for the largest and most prestigious Norwegian public commissions. Much larger scale and global brand, but competes with GASA on selected school, cultural, and civic projects.
• Arkitema (part of COWI): Nordic architecture firm (now part of COWI group) with strong school, kindergarten, and sustainable-design portfolio. Comparable in sustainability expertise and public-sector focus but operates at larger scale across multiple Nordic countries.

Others

• Rambøll (Architecture division): Global engineering and architecture consultancy that has worked as landscape architect on GASA projects (Ruseløkka Skole) and competes in the broader Norwegian public-sector design market as both consultant and prime architect.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/arkitektkontoret-gasa

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Arkitektkontoret Gasa