AuS Arquitectura i Sostenibilitat

What AuS Arquitectura i Sostenibilitat does

AuS Arquitectura i Sostenibilitat (Agrupació d'Arquitectes per la Sostenibilitat) is a non-profit professional association operating as an official grouping within the Col·legi d'Arquitectes de Catalunya (COAC), the statutory professional body for architects in Catalonia. Founded on November 30, 2005, AuS convenes architects committed to sustainable practice through six specialized working groups (GT1 Materials, GT2 Carbon Footprint, GT3 Urban Rehabilitation and Regeneration, GT4 Global Agendas, GT5 Health, and GT6 Books and Travels Club), supported by an annual General Assembly, monthly Debats AUS sessions, technical visits to construction projects, training through Escola Sert, and the recurring Descarbonitzant l'Arquitectura conference series. As of end-2025 the association reported 277 collegiate and collaborator members, a 20-year institutional track record, and leadership under president Greta Tresserra.

AuS's principal proprietary technology is the ECO2 (Eina CO2) carbon footprint calculation tool for building materials, co-developed with the Institut de Tecnologia de la Construcció de Catalunya (ITeC) and integrated into COAC's professional visa platform; the tool enabled the first carbon emissions calculations for buildings registered in Catalonia. AuS also distributes the OCT-developed Healthy Indoor Spaces (Espais Interiors Saludables) assessment tool to COAC members and co-developed indicators through the INDICATE project (carbon footprint benchmark for Spanish residential buildings) with GBCe and the University of Seville. The association engages policy forums at three levels — Catalan (Generalitat de Catalunya, Agència de Residus), national (CSCAE, MIVAU via ARCE_2050), and European (ACE-CAE under the European Green Deal, EPBD, and New European Bauhaus) — positioning itself as an institutional interlocutor on sustainable-building regulation.

AuS's business model is that of a COAC-embedded non-profit: no membership fees, tool pricing, or external revenue are disclosed. Operations are funded through COAC's structure, training revenues pass through Escola Sert, and the 277-member base represents a stable but small captive audience of COAC architects. Distribution is direct (members, working groups, the visa platform) and amplified through a bimonthly newsletter, blog, LinkedIn and Instagram channels, and earned-media appearances (e.g., betevé). Customer segments are vertical: COAC collegiates seeking sustainability training and tools, plus broader architecture and construction professionals engaging through events.

Name

AuS Arquitectura i Sostenibilitat

Legal name

Col·legi d'Arquitectes de Catalunya (COAC)

Website

https://aus.arquitectes.cat

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

1–10 employees

Short description

AuS Arquitectura i Sostenibilitat is a non-profit professional association within Catalonia's architects' college (COAC) that promotes sustainable architecture through six working groups, training, policy advocacy, and the ECO2 carbon footprint tool, serving 277 members.

Ownership category

akta.pro rank

Product category

Professional Association Services

NAICS

Environmental Consulting Services (54162)

akta.pro primary industry

Corrective/Preventive Actions (CAPA) & Continual Improvement Programs (EUAHAIAG)

akta.pro secondary industries

Stakeholder Engagement, Indigenous/Tribal Consultation & Social Impact (SIA) (EUAHAAAH), Environmental Permitting & Impact Assessment (EIA/NEPA) (BPAIAMAK)

Keywords

• Sustainable architecture advocacy
• Architect professional association
• Decarbonization training services
• Carbon footprint calculation tools
• Building sustainability events

Headquarters

HQ city

Barcelona

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Membership and Professional Services: As a professional association within COAC, AuS operates as a non-profit entity supported by the Col·legi d'Arquitectes de Catalunya. Revenue is generated through membership activities, training courses at Escola Sert, and organizational membership fees.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

AuS is a professional association/grouping inside the Col·legi d'Arquitectes de Catalunya (COAC) that promotes sustainable architecture among Catalan architects. It delivers structured training courses (via Escola Sert), organizes technical visits, debates (Debats AUS), annual conferences (Descarbonitzant l'Arquitectura, Architecture and Health Congress), and develops sustainability tools such as the ECO2 carbon footprint calculator co-built with ITeC.

Product overview

AuS Arquitectura i Sostenibilitat (AUS Arquitectes) is a professional association/grouping of architects affiliated with the Col·legi d'Arquitectes de Catalunya (COAC). It is not a product company but rather an advocacy and professional networking organization focused on sustainable architecture. AUS organizes events, debates, technical visits, and training activities for its members (277 members as of 2025). The organization operates through six working groups (GT1-GT6) covering topics such as decarbonized materials, carbon footprint, urban rehabilitation, global agendas, health, and a 'Books and Travels' club.

Differentiator

Problem solved

Functional benefit

Products and services

• ECO2 Carbon Footprint Tool (Eina CO2)

Quantifiable outcome

• Tool ECO2 enables first carbon emissions calculation of buildings registered in Catalonia
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

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

• Col·legi d'Arquitectes de Catalunya (COAC)coreStrategic or Co-development PartnerCOAC is the parent organization of AuS. The grouping operates as an official association within COAC, utilizing its infrastructure, resources, and institutional reach. COAC provides administrative support, training facilities through Escola Sert, and the visa platform for tool distribution.
• Institut de Tecnologia de la Construcció de Catalunya (ITeC)coreStrategic or Co-development PartnerITeC collaborated with AuS to develop the ECO2 carbon footprint calculation tool for building materials. The tool is integrated into COAC's visa platform and provides emissions data for architectural projects.
• Consejo Superior de Colegios de Arquitectos de España (CSCAE)coreStrategic or Co-development PartnerCSCAE is the national coordinating body for Spanish architects' associations. AuS coordinates with CSCAE's sustainability working groups as part of the 'Descarbonitzant l'Arquitectura' project and participates in national policy advocacy.
• Architects Council of Europe (ACE-CAE)coreStrategic or Co-development PartnerEuropean-level architecture council coordinating sustainability initiatives. AuS participates in ACE-CAE sustainability working groups and contributes to European decarbonization efforts under the European Green Deal.
• Societat Catalana de Salut Mediambiental (SOCSA)notableStrategic or Co-development PartnerSOCSA is a new scientific society for environmental health in Catalonia. AuS supported its creation; AuS Secretary Sònia Hernández-Montaño coordinates SOCSA's biohabitability working group, strengthening ties between architecture and environmental health.
• Gremi de la Bioconstrucció de CatalunyanotableStrategic or Co-development PartnerGuild of bioconstruction in Catalonia. AuS actively participated in its creation and continues to collaborate on traditional materials and sustainable construction practices.
• Acadèmia de Ciències Mèdiques (Catalan Academy of Medical Sciences)notableStrategic or Co-development PartnerAuS GT5 (Health) helped create the Management Commission of the Catalan Society of Architecture and Health within this academy, establishing formal academic ties between architecture and health.
• Club MaderanotableStrategic or Co-development PartnerWood industry association. Co-organized technical conference on industrialized timber construction with AuS and Ecohub, bringing together 80+ participants.
• EcohubnotableStrategic or Co-development PartnerSustainability center. Co-organized technical conference on industrialized timber construction with AuS and Club Madera.
• Green Building Council España (GBCe)notableStrategic or Co-development PartnerSpanish green building council. AuS participates in joint debates and conferences on sustainability; collaborated on INDICATE project for carbon footprint benchmarking.
• Universitat de SevillanotableStrategic or Co-development PartnerUniversity coordinating the INDICATE project for establishing the first carbon footprint reference index for residential buildings in Spain, with AuS participation.
• Agència de Residus de CatalunyanotableStrategic or Co-development PartnerCatalan Waste Agency. AuS Vice President participated in working session on reuse in construction, contributing to circular economy policy development.
• Generalitat de Catalunya (Various Departments)coreStrategic or Co-development PartnerRegular meetings with Catalan administrations on sustainability policy. Departments include Habitatge (Housing), Salut Pública (Public Health), and various regulatory bodies.
• Ministerio de Vivienda y Agenda Urbana (MIVAU)coreStrategic or Co-development PartnerSpanish Ministry of Housing and Urban Agenda. AuS participates in strategic projects including ARCE_2050, contributing to national sustainable housing policy development.
• La Mar d'ArquitectesminorStrategic or Co-development PartnerArchitecture firm whose La Xarxaire cooperative housing project was featured in technical visit, showcasing sustainable construction practices to AuS members.
• Lacol Arquitectura CooperativaminorStrategic or Co-development PartnerCooperatively-owned architecture firm. La Bertrana project visited; represents sustainable cooperative architecture model aligned with AuS values.
• Waugh Thistleton ArchitectsminorStrategic or Co-development PartnerUK architecture firm internationally recognized for sustainable timber construction. Presented at AuS-organized technical conference.
• Grupo BoixminorStrategic or Co-development PartnerCatalan forestry company that opened its CLT panel factory to AuS members, demonstrating local bioeconomy and timber construction production.
• TallfustaminorStrategic or Co-development PartnerTimber construction company providing technical expertise and hosting visits for AuS members on industrial timber construction systems.
• TerraquiminorStrategic or Co-development PartnerConsulting firm that developed normative and legislative analysis study on reuse in construction for Agència de Residus de Catalunya, presented at sector working session.
• Eco Intelligent GrowthminorStrategic or Co-development PartnerConsulting firm that developed best practices and applied experiences study on reuse in construction for Agència de Residus de Catalunya.
• Recursos Urbans (URRU)minorStrategic or Co-development PartnerOrganization focused on urban reuse and circular economy. Organized visit to 'La ciutat recurso' exhibition and conference on reuse in architecture for AuS members.
• NADANOVOminorStrategic or Co-development PartnerArchitecture practice focused on sustainable reuse. Presented at AuS summer event on reuse in architecture alongside international speakers.
• SUPERUSE StudiosminorStrategic or Co-development PartnerInternational architecture firm specializing in circular construction and reuse. Presented at AuS summer event on reuse practices.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Others

• Architects Declare: UK-based coalition of architecture practices committing to climate and biodiversity action; comparable as a movement-style architect coalition using declarations, working groups, and tool advocacy to drive sustainability in the profession.
• Architecture 2030: US-based non-profit advancing carbon-neutral and climate-positive built environments; thematically adjacent to AuS's decarbonization mission with comparable non-profit, advocacy-led model targeting architects and policy.

Broad incumbents

• U.S. Green Building Council (USGBC): Established North American green-building membership and standards organization (LEED); comparable as a broad incumbent operating an analogous membership, advocacy, and tool-distribution model for sustainable buildings at much larger scale.
• World Green Building Council (WorldGBC): Global umbrella of national green building councils; comparable as a higher-tier advocacy network advancing decarbonization of the built environment, of which GBCe is the Spanish member and AuS is an adjacent practitioner.
• Col·legi d'Arquitectes de Catalunya (COAC): Parent regulatory body for architects in Catalonia; AuS operates as an official working group within COAC, sharing overlapping professional-services and training missions through Escola Sert while COAC operates at a much broader institutional mandate.
• Architects Council of Europe (ACE-CAE): European-level council of architects coordinating sustainability initiatives under the European Green Deal; AuS participates in ACE-CAE sustainability working groups, making it the closest pan-European peer operating at a broader mandate and scale.
• Consejo Superior de Colegios de Arquitectos de España (CSCAE): National coordinating body for Spanish architects' associations, of which AuS is a regional affiliate via COAC; comparable as a higher-tier professional/advocacy body influencing sustainability policy, including the joint Descarbonitzant l'Arquitectura program.

Direct peers

• Green Building Council España (GBCe): Spanish green building council promoting sustainable construction; directly comparable to AuS as a membership-based advocacy and standards organization in the same national sustainability ecosystem and a current AuS partner (INDICATE project).

Emerging players

• Institut de Tecnologia de la Construcció de Catalunya (ITeC): Catalan construction technology institute that co-developed the ECO2 tool with AuS; comparable as a regional technical partner driving material data and digital tooling for sustainable construction in the same ecosystem.
• Societat Catalana de Salut Mediambiental (SOCSA): Catalan scientific society for environmental health that AuS helped create; comparable as an emerging professional/scientific body at the intersection of built environment and health, focused on biohabitability.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/aus-arquitectura-i-sostenibilitat
• Instagraminstagram.com/_u/aus.arquitectes/?utm_source=ig_embed&ig_rid=859591be-aea2-40b2-b77a-fb4594b6d117&ig_mid=CBC9056C-D659-452C-A58C-CAB667DBDDEA

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about AuS Arquitectura i Sostenibilitat