What a+r Architekten GmbH does

a+r Architekten GmbH is a privately held German architecture firm founded in 1985 in Tübingen by Prof. Gerd Ackermann and Prof. Hellmut Raff, headquartered in Stuttgart with a second office in Tübingen and approximately 130 staff across both locations. The firm provides comprehensive architectural design and planning services — including competition entries, design development, execution planning, construction supervision and (via its 2021-established subsidiary a+r Generalplaner GmbH) general planning — for public, commercial, and residential clients. Its core technical profile centers on sustainable, energy-efficient design with specific expertise in timber construction (Holzbau), timber-hybrid structures, and BIM methodology supported by buildingSMART and openBIM-certified practitioners.

The firm's go-to-market is competition-led: it acquires virtually all work through German architectural competitions (Wettbewerbe) and negotiated procedures (Verhandlungsverfahren) initiated by public-sector clients. Customer concentration skews strongly toward government and quasi-government clients — municipalities such as Stadt Stuttgart and Stadt Göppingen, federal-state authorities including Land Baden-Württemberg and Freistaat Bayern, district offices (Landratsamt Tübingen), municipal housing companies (Siedlungswerk Stuttgart, HOWOGE Berlin), and educational institutions (Hochschule Weihenstephan, Universität Bayreuth). Private-sector clients include Dr. August Oetker Nahrungsmittel KG and Gustav Epple Bauunternehmung GmbH. Revenue is generated through professional service fees against individual project commissions; pricing is not publicly disclosed.

Currently managed by Oliver Braun, Alexander Lange, and Florian Gruner (with Walter Fritz continuing as Chief Architect after stepping down from Office Management at the turn of 2025), a+r ranked 2nd in the competitionline Ranking 2025 (Architecture), widely regarded as the leading measure of competition-based practice in Germany. The firm carries multiple national and international awards (Hugo-Häring State Prize 2024, DGNB Gold, Deutscher Holzbaupreis recognitions, Archello, Architizer, International Architecture Awards, Staatspreis Baukultur Baden-Württemberg 2024) and operates without external private-equity or venture-capital ownership.

Name

a+r Architekten GmbH

Legal name

a+r Architekten GmbH

Website

https://aplusr.de

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

51–100 employees

Short description

a+r Architekten GmbH is a German architecture firm founded 1985, employing ~130 staff across Stuttgart and Tübingen offices. It provides sustainable design, BIM-based planning, and timber-construction expertise to public, commercial, and residential clients through German architectural competitions.

Ownership category

akta.pro rank

Product category

Architectural Design Services

NAICS

Architectural Services (541310), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Community Engagement & Participatory Planning (BPAHAKAO), Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

Keywords

• Architectural design services
• Sustainable architecture
• Urban planning services
• Timber construction design
• BIM building design

Headquarters

HQ city

Stuttgart

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Design Services: Full-service architectural firm providing design, planning, and general planning (Generalplanung) services for construction projects. Revenue generated through professional fees for architectural services, typically contracted through public competitions and negotiated procedures. Services include competition entries, design development, execution planning, and construction supervision.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

a+r Architekten GmbH is a privately held German architecture firm that delivers full-service architectural design, planning, and execution services for educational facilities, public buildings, residential developments, commercial and office buildings, cultural venues, and urban development projects. The firm provides services from architectural competition entry through construction supervision, and offers general planning (Generalplanung) capabilities through its subsidiary a+r Generalplaner GmbH. Projects are predominantly acquired via public architectural competitions (Wettbewerbe) and negotiated procedures (Verhandlungsverfahren).

Product overview

a+r Architekten GmbH is an architectural firm offering comprehensive architectural design services rather than a software product. The company provides architectural planning, design, and execution services across multiple building typologies including educational facilities (schools, universities, daycare centers), sports facilities, residential buildings, commercial and office buildings, public administration buildings, cultural buildings (churches, museums), and urban development projects. The firm operates as a single integrated service offering (not a platform-plus-modules architecture), delivering projects from concept design through construction management. The company was founded in 1985 in Tübingen and employs approximately 130 staff across Stuttgart and Tübingen offices. Key project categories include Büro/Gewerbe (office/commercial), Öffentliche Bauten (public buildings), Städtebau (urban planning), Wohnbau (residential), Mixed-Use, and Generalplaner (general planning) services. The affiliated entity a+r Generalplaner GmbH was established in 2021 to provide additional project management and planning services.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design and Planning Services

Quantifiable outcome

• DGNB GOLD certification achieved for Franz-Binder-Verbundschule Neckarsulm with primary energy demand below 65% of target value
• +3 more outcomes

Named customers12 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

14 partnerships are on record, tiered minor and core.

• NL ArchitectsminorStrategic or Co-development PartnerCollaborative partnership on specific projects including Interimsspielstätte der Oper Stuttgart and Inselstraße Stuttgart Untertürkheim. NL Architects serves as partner on these mixed-use and cultural projects.
• Glück LandschaftsarchitekturcoreStrategic or Co-development PartnerLong-term collaboration with Glück Landschaftsarchitektur on numerous competition wins including Otto-Schott-Gesamtschule Witten (1st prize), Primary School with Double Sports Hall Schwäbisch Hall (1st prize), School Extension Mühlhausen im Kraichgau (1st prize), and various other projects.
• Stefan Fromm Landscape ArchitectscoreStrategic or Co-development PartnerRepeated collaboration partner on projects including Eberhardskirche with New Residential Building in Tübingen (1st prize) and Ferdinand-von-Steinbeis School workshops in Tuttlingen (2nd prize).
• Pfrommer + Roeder Landscape ArchitectsminorStrategic or Co-development PartnerCollaboration partner on Otto-Schott-Gesamtschule Witten project.
• allmannwappnerminorStrategic or Co-development PartnerCollaboration partner on Bildungscampus West Heilbronn project (2nd prize).
• Bayer & Strobel ArchitectsminorStrategic or Co-development PartnerCollaboration partner on Bildungscampus West Heilbronn project.
• Koeber Landscape ArchitectureminorStrategic or Co-development PartnerCollaboration partner on New Academic Building at HSF Meißen (special mention).
• faktorgruenminorStrategic or Co-development PartnerCollaboration partner on Redevelopment of Glattbach Town Center (3rd prize).
• LBBW (LBBW Development GmbH)minorStrategic or Co-development PartnerCollaboration with LBBW on Spinelli Construction Site 5 in Mannheim (2nd prize).
• Gustav Epple Bauunternehmung GmbHcoreStrategic or Co-development PartnerLong-standing collaborative relationship with Gustav Epple as general contractor on numerous projects including Cube One UTN Nürnberg, Entrepreneurship Center Garching, Zentrum für Präzisionstechnik Pforzheim, and Grundschule am Kasteneck Freiberg. Also designed the Verwaltungsgebäude Gustav Epple headquarters.
• Peter Gross Hoch- und Generalbau GmbH & Co. KGminorImplementation/ SI/ Consulting PartnerGeneral contractor partner on Franz-Binder-Verbundschule Neckarsulm project.
• i+RB Industrie- & Gewerbebau GmbHminorImplementation/ SI/ Consulting PartnerGeneral contractor partner on Kindertagesstätte Gaisbach and Stadtwerke Esslingen Schwertmühle projects.
• ACKERMANN RAFFcoreStrategic or Co-development PartnerRelated architectural practice. Note in datenschutz page that emails should be sent to [email protected], indicating shared management/ownership. Office was founded by Prof. Gerd Ackermann and Prof. Hellmut Raff in 1985.
• a+r Generalplaner GmbHcoreStrategic or Co-development PartnerSubsidiary company founded in 2021 to expand general planning capabilities. Operates alongside the architecture practice for integrated project delivery.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Allmannwappner: Munich-based architecture firm specializing in public buildings, cultural facilities, and educational projects. a+r has actually partnered with allmannwappner on the Bildungscampus West Heilbronn competition, confirming direct overlap in customer base and project typology.
• HPP Architekten: Major German architecture firm headquartered in Düsseldorf with deep public-sector and commercial portfolio including education, sports, healthcare, and cultural buildings. Directly comparable to a+r on customer type (public clients, German municipalities), project typology (educational campuses, urban redevelopment), and competition-based acquisition approach.
• Barkow Leibinger: Berlin- and Los Angeles-based architecture firm with strong portfolio in public, cultural, and educational buildings. Comparable to a+r in emphasis on competition-winning design, sustainability-forward practice, and international award profile in the German architecture market.
• Hascher Jehle Architektur: Berlin-based architecture firm with strong public-sector and educational building portfolio. Comparable to a+r in target customers (public institutions, universities), building typologies (schools, urban districts), and emphasis on competition-based project acquisition in Germany.
• Sauerbruch Hutton: Berlin-based architecture firm recognized for cultural, public, and adaptive reuse projects with strong sustainability and material innovation focus. Comparable to a+r in public/cultural typology, sustainability positioning, and award-driven brand profile.
• KSP Architekten: Major German architecture firm with deep public-sector and educational building portfolio across multiple German offices. Directly comparable to a+r on customer type (public institutions, universities), building typologies, and competition-driven GTM in the German market.
• ASTOC: Cologne-based architecture firm with public-sector and institutional building portfolio. Comparable to a+r on customer type (public institutions, municipalities), building typologies, and competition-based project acquisition in Germany.
• Staab Architekten: Berlin-based architecture firm known for cultural and public buildings including museums and urban developments. Comparable to a+r on project typology (cultural/public buildings), competition-based acquisition, and recent award-validated sustainability profile.

Regional players

• Heinle, Wischer und Partner: Stuttgart-based architecture firm with deep regional presence in Baden-Württemberg. Directly competes with a+r in the Stuttgart and southern German regional market on public buildings, educational facilities, and urban development — overlapping territory and customer base.

Broad incumbents

• gmp Architekten: One of the largest German architecture firms with broad portfolio spanning public, cultural, transportation, and commercial projects at massive scale globally. Operates in a similar space but at materially larger scale and broader scope than a+r, positioning it as a broader incumbent rather than a direct peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/aplusrarchitekten

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 record

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 a+r Architekten GmbH