O&O Architecture

What O&O Architecture does

O&O Architecture, doing business as O&O Baukunst, is a Berlin- and Vienna-based full-service architecture and urban planning firm tracing its lineage to the 1967-founded Haus-Rucker-Co avant-garde collective and operating under its current name since 1992. The firm delivers design and general planning services across seven typologies — office/corporate, cultural, retail, hospitality, residential, and urban masterplanning — with notable specializations in heritage-sensitive adaptive reuse, sustainable and climate-responsive district design, and cultural institutions. Its portfolio includes the MuseumsQuartier Wien (one of Europe's largest cultural districts, competition win 1990, opened 2001), the 160,000 sqm Wüstenrot campus, Daimler Truck campuses, and the DGB national headquarters in Berlin.

The firm is privately held as a partnership, with no external institutional investment, and operates as Ortner & Ortner Baukunst Gesellschaft von Architekten mbH in Germany and Ziviltechnikergesellschaft mbH in Austria. It is jointly managed by five partners — founders Laurids Ortner and Manfred Ortner alongside Roland Duda, Florian Matzker, and Markus Penell — supported by an office of 101–250 employees. Revenue is generated almost entirely through professional services fees on a project basis, typically structured as a percentage of construction cost or fixed design fees, with commissions secured via architectural competitions (public tenders), direct enterprise commissions, and repeat client relationships. Ancillary revenue streams include the O&O Depot art gallery, the Depotgespräche lecture series, annual publications, and the Haus-Rucker-Co historical archive.

Customers span three primary verticals — public sector/government (cities of Vienna, Bonn, Dresden; DGB), corporate and real estate developers (Daimler, Wüstenrot), and cultural/educational institutions (MuseumsQuartier Wien, Schaubühne Berlin, Ernst Busch Academy) — with the firm acting as single-source general planner on large-scale commissions. Distribution is exclusively direct and relationship-driven, with no third-party channel structure; marketing relies on architectural publications, the O&O Depot exhibition program, social media, and competition wins to build visibility.

Name

O&O Architecture

Legal name

Ortner & Ortner Baukunst Gesellschaft von Architekten mbH

Website

https://ortner-ortner.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

101–250 employees

Short description

O&O Architecture (O&O Baukunst) is a Berlin- and Vienna-based full-service architecture and urban planning firm delivering heritage-sensitive design, general planning, and cultural institution projects for public, corporate, and cultural clients across the DACH region.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Architectural Services (541310)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Space Planning & Workplace Design (BPAHAKAI)

akta.pro secondary industry

Sustainable/Green Building & LEED Consulting (BPAHAKAG)

Keywords

• Architectural design services
• Urban masterplanning
• Cultural building design
• Commercial architecture
• Heritage building renovation

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Design Services: O&O Baukunst generates revenue through fees for architectural design services, including competition submissions, schematic design, design development, construction documents, and construction administration. Revenue is project-based and structured as percentage of construction cost or fixed fees, typical for European architecture practices. The firm acts as general planner on major commissions, coordinating multidisciplinary teams.
2. O&O Depot Art Gallery: The O&O Depot operates as a gallery and exhibition space, presenting exhibitions by independent artists and offering selected works for sale. Revenue from gallery operations is secondary and supplementary to the core architecture practice.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

O&O Baukunst is a full-service architecture firm offering architectural design, urban planning, and general planning services across cultural, office, retail, hotel, and residential building typologies. The firm specialises in heritage-sensitive renovation, adaptive reuse, climate-responsive urban masterplanning, and large-scale mixed-use quarter development, acting as single-source general planner on major commissions across Germany and Austria.

Product overview

O&O Baukunst is an architecture and urban planning firm led by Roland Duda, Florian Matzker, Markus Penell, Laurids Ortner, and Manfred Ortner. The firm offers comprehensive architecture services across seven project categories: Cultural (museums, theaters, galleries), Office/Corporate (office buildings, campuses), Shopping/Retail (shopping centers), Hotels, Residential (housing developments), and Urban Planning/Masterplanning. The firm operates the O&O Depot art gallery, which presents exhibitions by independent artists and continues the legacy of Haus-Rucker-Co. Additional offerings include annual publications (Jahreshefte) documenting projects, the Depotgespräche lecture series on architecture and building culture, and the Haus-Rucker-Co archive preserving the work of the 1967-founded avant-garde collective.

Differentiator

Problem solved

Functional benefit

Brands

• O&O Depot: Art gallery operated by O&O Baukunst presenting exhibitions by independent artists, continuing the artistic legacy of Haus-Rucker-Co

Products and services

• Office and Corporate Architecture Design of corporate office buildings and campuses for enterprise clients, including Daimler Truck Campus, Würstenrot Campus, and the DGB national executive board headquarters in Berlin. Delivered as full architectural design through construction administration.
• Cultural Architecture Design of museums, theatres, galleries, and cultural institutions including MuseumsQuartier Wien, Schaubühne Berlin, and University of Performing Arts Ernst Busch. Specialises in heritage-sensitive renovation and adaptive reuse of cultural buildings.
• Retail Architecture Design of shopping centres and retail complexes including Forum Duisburg, Boulevard Berlin, Lilien-Carré Wiesbaden, and Gloria Berlin.
• Hotel Architecture Design of hotels including Hotel Steigenberger am Kanzleramt Berlin, Hotel Petriplatz Berlin, and Hotel Lilien-Carré Wiesbaden.
• Residential Architecture Design of housing developments including Geisberg Berlin, Karolinenhof Regensburg, Schwedler-Carré Frankfurt, and Rodenstock Garten München.
• Urban Planning and Masterplanning Large-scale urban development and master planning including Urbane Mitte Gleisdreieck Berlin, Domagkstraße München, Freiham Nord Munich, Strehlener Straße Dresden, and RothNEUsiedl Vienna. Includes climate-responsive district design and interdisciplinary coordination as general planner.
• O&O Depot Gallery Art gallery operated by O&O Baukunst presenting 6–8 exhibitions annually by independent artists, with selected works available for sale. Continues the artistic legacy of Haus-Rucker-Co by bridging art and architecture. Operates at Leibnizstraße 60, Berlin.

Quantifiable outcome

• MQ Wien is one of the largest culture areas in Europe
• +3 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• capattistaubach urbane LandschaftencoreStrategic or Co-development Partner · 18 May 2026O&O Baukunst collaborated with capattistaubach urbane Landschaften (landscape architecture firm) on the RothNEUsiedl Vienna urban design framework, working with an interdisciplinary team including traffic, energy, water planning, and circular economy specialists. They also jointly won the 1st prize for the Strehlener Straße Dresden quarter development.

Scale indicators4 records

Recent moves14 records

Expansion highlights4 records

Direct peers

• David Chipperfield Architects: London- and Berlin-based architectural practice with a comparable cultural-institution specialisation (Neues Museum Berlin, James Simon Gallery) and similar emphasis on heritage-sensitive design. Most direct stylistic and segment-level peer for O&O's cultural and civic work in Europe.
• Sauerbruch Hutton: Berlin-based architecture firm of comparable size and aesthetic orientation, with a portfolio of cultural, commercial, and urban projects. Direct peer in the German architecture market with overlapping typologies and clients.
• Barkow Leibinger: Berlin- and New York-based contemporary architecture practice with similar cultural, commercial, and pavilion typologies and comparable team size. Closest peer for O&O's contemporary cultural and civic commissions.
• Staab Architekten: Berlin-based practice known for cultural and museum architecture (Maxxi Museum, Humboldt Forum interior, Staatsarchiv Hamburg). Closest peer for O&O's heritage-sensitive and cultural commissions in Germany.
• Max Dudler: Berlin-based architect with comparable portfolio in cultural, commercial, and residential projects (Jacob-und-Wilhelm-Grimm-Zentrum library). Direct peer for typology and German footprint.
• Kuehn Malvezzi: Berlin-based architectural practice focused on cultural and institutional buildings (Museum Berggruen extension, Haus der Kulturen der Welt). Direct peer for O&O's museum and cultural-institution work in the DACH region.
• GMP Architekten (von Gerkan, Marg and Partners): Hamburg-based major German practice with large-scale corporate campus, cultural, and stadium work (e.g., Berlin Olympic Stadium, major railway stations). Most direct peer for O&O's corporate and public infrastructure commissions at a similar national scale.
• Henn Architekten: Munich-based practice of comparable size with similar corporate campus (BMW, Siemens), cultural, and masterplanning work. Closest peer in southern Germany for project scale and typology.

Broad incumbents

• BIG (Bjarke Ingels Group): Global incumbent with high-visibility cultural, residential, and masterplanning projects. Competes with O&O for marquee urban planning and cultural commissions at international scale, but operates at materially larger size.
• Foster + Partners: Global incumbent with extremely broad portfolio (Reichstag dome, Bloomberg HQ, Apple Park). Overlaps with O&O on cultural and civic commissions but operates at materially larger scale and broader geographic footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/ortnerortner
• Facebookfacebook.com/ortnerortner
• LinkedInlinkedin.com/company/16233191/admin
• Instagraminstagram.com/ortnerortner

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about O&O Architecture