SOZIALBAU AG
SOZIALBAU AG is Austria's largest non-profit housing company, managing 55,776 rental and ownership apartments in Vienna through innovative energy systems and the 'gemeinsam stärker' community platform serving 54,000 residents.
- Company typePrivate
- Founded1954
- HeadquartersVienna, Austria
- Headcount11–50
- GTM typeB2C
- OfferingServices
SOZIALBAU AG firmographics
Firmographics- Name
- SOZIALBAU AG
- Legal name
- SOZIALBAU gemeinnützige Wohnungsaktiengesellschaft
- Website
- https://sozialbau.at
- Company type
- Private
- Founded year
- 1954
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- SOZIALBAU AG is Austria's largest non-profit housing company, managing 55,776 rental and ownership apartments in Vienna through innovative energy systems and the 'gemeinsam stärker' community platform serving 54,000 residents.
- Ownership category
- akta.pro rank
SOZIALBAU AG industry classification
Industry- Product category
- Affordable Housing & Residential Property Management
- NAICS
- Residential Property Managers (531311), Real Estate Property Managers (53131), Lessors of Nonresidential Buildings (except Miniwarehouses) (531120)
- SIC
- Operators Of Apartment Buildings (6513), Real Estate Agents & Managers (For Others) (6531), Real Estate Operators (No Developers) & Lessors (6510)
- akta.pro primary industry
- Multifamily Apartment Property Management (BPAJAFAA)
- akta.pro secondary industry
- Association Maintenance, Vendor & Capital Project Management (BPAJAHAM)
Keywords
Where SOZIALBAU AG is headquartered
LocationHeadquarters
- HQ city
- Vienna
- HQ country
- Austria
- HQ region
- Europe
Offices4 records
Markets served
SOZIALBAU AG business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Infrastructure, Personnel, Operations, Technology or R&D, Others, Marketing or Sales
Revenue model
- Rental income from managed apartments: SOZIALBAU AG generates the majority of its revenue from renting approximately 55,776 subsidized and market-rate apartments to tenants in Vienna. As a non-profit housing provider, rents are regulated and based on affordability principles. Rental income also includes ancillary costs and parking space rental.
- Commercial property rental: Revenue from renting commercial spaces, offices, and retail units in ground-floor locations across housing complexes. Commercial tenants include businesses, healthcare providers, childcare facilities, and service providers.
- New build apartment sales/allocation: Revenue from allocating newly constructed apartments. Around 500-1,000 new build apartments are allocated per year. Projects in planning or construction include 1,259 apartments currently under construction with 97 million EUR in annual construction investment.
- Community platform services and member benefits: 'gemeinsam stärker' platform generates value through member card discounts, partner commissions, and service referrals. Members receive benefits and discounts from partner retailers and service providers through the community platform.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Subsidized rental apartments - income-based regulated rents |
| Subscription | Monthly | Free-financed rental apartments - market rate |
| Unit Pricing | Pay-as-you-go | E-Transporter rental for community members |
Go-to-market motion3 records
Distribution channels5 records
Marketing channels6 records
SOZIALBAU AG product offering
Product offeringCore offering
SOZIALBAU AG is Austria's largest non-profit housing association, managing 55,776 rental and ownership apartments across more than 600 buildings in Vienna. It provides affordable subsidized and market-rate rental housing, commercial property leasing, and integrated community services through the 'gemeinsam stärker' platform. The company also pioneers energy-efficient building technologies including anergy networks, serial renovation, facade tempering, and large-scale photovoltaic installations.
Product overview
SOZIALBAU AG is Austria's largest non-profit housing association managing 55,776 rental and ownership apartments. The company operates a multi-faceted housing platform combining subsidized rental housing, ownership options, and comprehensive community services. Core offerings include energy-efficient building management with innovative systems (Energiezentrale, Photovoltaik, Anergienetze), e-mobility services (E-Carsharing, E-Transporters, E-Charging), and the digital 'gemeinsam stärker' community platform. Additional services span resident support (Bewohnerservice, SOBIS), community building programs (Wohn-Buddy, urban gardening, art initiatives), and sustainability reporting. The portfolio includes new construction projects, thermal renovation, and various housing-related services coordinated through internal systems and the customer magazine 'hauspost'.
Differentiator
Problem solved
Functional benefit
Brands
- gemeinsam stärker: Online community platform providing services including apartment exchange, childcare/elderly care services, guest apartments, E-mobility, events, and neighborhood help marketplace for 54,000 residents.
- SOBIS
- frei.heraus
Products and services
- Subsidized Rental Housing Income-based regulated rental apartments for Austrian households qualifying for non-profit housing. Rents are kept low based on affordability principles and housing regulations under Austrian non-profit housing law. Tenants benefit from lifetime tenancy rights and access to the full gemeinsam stärker community ecosystem.
- Free-financed Rental Apartments Market-rate apartments within non-profit housing complexes. Rents are higher than subsidized units but below private market rates. Approximately 1,600 apartments are planned across 10 projects.
- New Build Apartment Allocation Allocation of newly constructed apartments in SOZIALBAU developments. Around 500-1,000 new build apartments are allocated per year, drawn from a portfolio of 1,259 apartments currently under construction.
- Haus Haidehof Senior Care Housing Senior living and nursing home project in Simmering with 280 care places operated by 'Häuser zum Leben' and approximately 100 subsidized apartments. Combines integrated care services with affordable housing.
- Commercial Property Leasing Rental of commercial spaces, offices, and retail units in ground-floor locations across housing complexes. Commercial tenants include healthcare providers, childcare facilities, and service businesses. Commercial vacancy rate is under 1%.
- sChanze Commercial Spaces Flexible commercial space offerings for self-employed individuals, freelancers, and creatives in the 'An der Schanze' residential quarter in Floridsdorf. Part of a larger development with about 1,400 apartments, student housing, and community facilities.
- Grätzl-E-Carsharing Community e-car sharing service with 10 mobility points across Vienna. Each Mobility Point offers one electric vehicle and 10 E-charging stations. Part of the 'gemeinsam mobil' (together mobile) community program.
- E-Transporter Rental Two electric transporter vehicles available for €10/day for community members via the 'gemeinsam stärker' platform. Located in south and north Vienna, powered by solar electricity. Reservable through the community platform for resident moves and purchases.
- gemeinsam stärker Community Platform Online platform and app serving as the primary hub for ~54,000 SOZIALBAU residents to access apartment exchange marketplace (SOBIS), social services for elderly and childcare, guest apartments, e-mobility bookings, event registration, gardening plots, and the Member Card discount program.
- Thermal Renovation (Wohnhaussanierung) Thermal renovation service for residential complexes. 262 housing complexes with approximately 17,843 apartments have been thermally improved, achieving average heat demand reduction of 72 kWh per m² per year and annual CO₂ reduction of 36,746 tonnes.
- Wohn-Buddy Program Volunteer program where long-term residents support newly moving neighbors as contacts during their initial period. Helps with integration into the building community. Currently 25 active Wohn-Buddys.
- gemeinsam garteln Urban Gardening Community urban gardening program with approximately 60 active projects in residential complexes. Residents grow vegetables, fruits, and herbs in community gardens. The Nobilegasse 16 garden was awarded the 'Natur im Garten' (Nature in the Garden) plaque.
- Bewohnerservice (Resident Service) Centralized resident service center handling customer inquiries via ticket system. 96% of calls answered within 20 seconds. Over 1 million customer tickets processed since 2006. Connected to contractor database for immediate service dispatch in emergencies.
- Enterprise Development & Construction Management (B2B) Project development and construction management services for partner housing cooperatives within the SOZIALBAU-Verbund (VOLKSBAU, WOHNBAU, FAMILIE, Urbanbau). Key projects include Quartier Breitensee (990 apartments), Schröderingerplatz (150 apartments for WOHNBAU), Sophie 7 (56 apartments for WBV GPA), and 'Dorf am Schafberg' children and family village.
Quantifiable outcome
- Heating energy demand reduced by 72 kWh/m² per year through thermal renovation
- +8 more outcomes
Companies that use SOZIALBAU AG
Customer profileNamed customers5 records
Segments5 records
Ideal customer profiles6 records
SOZIALBAU AG technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
SOZIALBAU AG partnerships and signals
Strategic signalPartnerships
20 partnerships are on record, tiered core and minor.
- Multiple property owners in Simon-Denk-Gasse areacoreFive property owners in the Simon-Denk-Gasse, Marktgasse, and Malzgasse area signed a near-heating network agreement led by WOHNBAU and managed by SOZIALBAU AG. This cross-property decarbonization project covers 100 apartments and is the largest near-heating network in existing stock in Vienna.
- Wohnfonds WiencoreWohnfonds Wien is Vienna's housing development fund and a key public partner. It sponsors the serial renovation pilot (RENVELOPE project) and has designated multiple SOZIALBAU projects as showcase initiatives in the city's 'Raus aus Gas' program.
- driendl*architectsminorArchitecture firm and co-developer of the 'Dorf am Schafberg' project with VOLKSBAU and the Austrian Children's Villages.
- Büro KaindlminorArchitecture firm and co-developer of the 'Dorf am Schafberg' project with VOLKSBAU and the Austrian Children's Villages.
- WOHNBAU (Wohnungsgenossenschaft)coreWOHNBAU is a partner housing cooperative within the SOZIALBAU-Verbund. SOZIALBAU AG won a developer competition on behalf of WOHNBAU to build ~150 subsidized rental apartments at Schrödingerplatz in Vienna's Donaustadt. SOZIALBAU also manages the near-heating network (Anergienetz) in the Simon-Denk-Gasse for WOHNBAU and provides project development services.
- VOLKSBAU (Wohnungsgenossenschaft)coreVOLKSBAU is a core strategic partner within the SOZIALBAU-Verbund of housing cooperatives. SOZIALBAU AG handles project development and construction management for VOLKSBAU properties. Key projects include Quartier Breitensee (990 apartments, with SOZIALBAU building 225 units and managing overall project steering) and the 'Dorf am Schafberg' children and family village project. VOLKSBAU's housing stock is managed within the joint cooperative group.
- Urban Innovation ViennaminorUrban Innovation Vienna supported the implementation of the Grätzl e-mobility project, which won the city's incentive prize for innovative, energy-efficient mobility in housing. The organization facilitated project rollout across 10 Vienna locations.
- FAMILIE GenossenschaftcoreFAMILIE is a housing cooperative within the SOZIALBAU-Verbund. SOZIALBAU AG manages renovation and innovation projects for FAMILIE's properties, including the facade tempering pilot at Große Neugasse 25 and the 'Raus aus Gas' Barawitzkagasse project. Both projects are designated as showcase projects in Vienna's decarbonization program.
- Urbanbau GmbHcoreUrbanbau GmbH is one of the six housing companies connected to SOZIALBAU AG through a care agreement, all of which have committed to the Corporate Governance Code for Non-Profit Building Associations. Urbanbau owns the BIG POINT/Center Hetzendorf development (312 apartments, 8,000 m² office, 4,000 m² shopping).
- Neuland GmbHminorNeuland GmbH is one of six housing companies bound to SOZIALBAU AG via care agreement under the Corporate Governance Code for Non-Profit Building Associations.
- Volksbau Gen.m.b.HminorVolksbau Gen.m.b.H is one of six housing companies bound to SOZIALBAU AG via care agreement under the Corporate Governance Code for Non-Profit Building Associations.
- Vindobona Gen.m.b.HminorVindobona Gen.m.b.H is one of six housing companies bound to SOZIALBAU AG via care agreement under the Corporate Governance Code for Non-Profit Building Associations.
- ÖGUT (Österreichische Gesellschaft für Umwelt und Technik)coreÖGUT is the Austrian Society for Environment and Technology, a key research and policy partner in SOZIALBAU's energy projects. ÖGUT co-developed the anergy network in the Grätzl Miesbachgasse/Leopoldsgasse area and awarded SOZIALBAU the Environmental Prize 2022 for the Energiezentrale project.
- TU Wien (Vienna University of Technology)coreTU Wien is a research partner in SOZIALBAU's energy innovation projects, including the anergy network research project in the 2nd district and the RENVELOPE project for serial renovation. Academic research partnerships provide scientific credibility and methodology support.
- Wiener Institute für Building ResearchminorResearch partner in the facade tempering (Fassadentemperierung) pilot project at Große Neugasse 25, which investigates building skin-based heating and cooling systems.
- HOB (Hausservice Objektbewirtschaftungs GmbH)coreHOB is a commercial subsidiary of the SOZIALBAU-Verbund providing IT services, facility management, and smart building technology (ESB digital notice boards, SMAT TV systems, fiber networks). HOB also trains apprentices, with one winning 2nd place in the Austrian 'Kann Was!' trade competition in 2025.
- Stadt Wien (City of Vienna)coreThe City of Vienna is a fundamental strategic partner through its housing policy framework, housing subsidies, and land allocation. The city designated SOZIALBAU's energy projects as showcase models for the 'Raus aus Gas' program and '100 Projekte Raus aus Gas' initiative.
- Wiener Volkshochschulen (VHS)minorVHS operates a location within the Sophie 7 urban quarter developed by SOZIALBAU, providing adult education services to residents and the local community.
- Häuser zum LebencoreHäuser zum Leben leases the 'Haus Haidehof' senior living facility (280 care places) from SOZIALBAU AG in Simmering. SOZIALBAU developed the property, and Häuser zum Leben operates the care services.
- Partner retailers and service providers (Member Card program)minorVarious retail partners offer discounts and special rates to SOZIALBAU residents holding the 'gemeinsam stärker' Member Card. Benefits include reduced prices at furniture stores, theaters, cabarets, museums, and other cultural venues.
Scale indicators15 records
Recent moves7 records
Expansion highlights6 records
SOZIALBAU AG competitors and assessment
Company assessmentBroad incumbents
- Vonovia SE: Europe's largest residential real estate company managing ~550,000 apartments across Germany, Austria, and Sweden. Comparable on residential property management scale and energy renovation initiatives, though for-profit and much larger.
- BUWOG Group: One of Austria's leading residential property developers and managers with significant Vienna presence. Comparable on property management scale and energy-efficient renovation programs, though operates on a for-profit rather than non-profit basis.
- Wiener Wohnen: City of Vienna's municipal housing arm managing approximately 220,000 apartments. Directly comparable as Vienna's largest affordable/social housing provider, though owned by the municipality rather than a non-profit cooperative.
Direct peers
- Gesobau AG: Berlin's largest municipal housing company managing ~75,000 apartments. Directly comparable as a large-scale non-profit residential property manager with comparable tenant services, energy renovation programs, and community engagement focus.
- Neues Leben (Bau- und Siedlungsgenossenschaft): Austrian non-profit housing cooperative with significant Vienna portfolio. Operates under the same gemeinnützige Wohnungswirtschaft framework with comparable subsidy access, tenant base, and capital structure.
- Alpenländische Gemeinnützige Wohnbau- und Siedlungsgenossenschaft: Major Austrian non-profit housing association operating across multiple federal states. Directly comparable as a similarly structured gemeinnützige Bauvereinigung managing tens of thousands of subsidized rental units.
- WBV-GPA (Wohnbauvereinigung für Privatangestellte): Austrian non-profit housing association; mentioned as a co-developer with SOZIALBAU in the Sophie 7 urban quarter. Operates under the same non-profit housing law and serves similar subsidized housing customers in Vienna.
- Wien Süd (Gemeinnützige Wohn- und Siedlungsgenossenschaft): One of Austria's largest non-profit housing cooperatives headquartered in Vienna. Directly comparable to SOZIALBAU as a regulated non-profit housing provider managing tens of thousands of Vienna apartments under similar legal framework.
Others
- IMMOFINANZ AG: Austrian real estate investment company with residential portfolio including the 's IMMO' brand. Adjacent rather than directly comparable - operates as a commercial investor rather than a non-profit housing provider.
Regional players
- Neue Heimat Tirol: Largest non-profit housing association in Western Austria (Tyrol). Comparable business model as gemeinnützige Wohnbau- und Siedlungsgenossenschaft but operates in a different geographic market than SOZIALBAU's Vienna-only focus.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
SOZIALBAU AG social profiles
Digital presenceSOZIALBAU AG compliance and trust
Trust signalCompliance6 records
SOZIALBAU AG financial estimates
Financial estimateRevenue estimate
Valuation estimate
SOZIALBAU AG leadership team
Management profileNumber of profiles
Profiles11 records
SOZIALBAU AG subsidiaries and ownership
Company hierarchySubsidiaries2 records
SOZIALBAU AG funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SOZIALBAU AG M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SOZIALBAU AG
What does SOZIALBAU AG do?
SOZIALBAU AG is Austria's largest non-profit housing association, managing 55,776 rental and ownership apartments across more than 600 buildings in Vienna. It provides affordable subsidized and market-rate rental housing, commercial property leasing, and integrated community services through the 'gemeinsam stärker' platform. The company also pioneers energy-efficient building technologies including anergy networks, serial renovation, facade tempering, and large-scale photovoltaic installations.
Is SOZIALBAU AG a public or private company?
SOZIALBAU AG is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was SOZIALBAU AG founded?
SOZIALBAU AG was founded in 1954. It employs 11 to 50 people.
Where is SOZIALBAU AG based?
SOZIALBAU AG is headquartered in Vienna, Austria, in the Europe region.
How does SOZIALBAU AG make money?
Four revenue lines are on record. Rental income from managed apartments are the primary driver. The others are commercial property rental, new build apartment sales/allocation and community platform services and member benefits.
Who are SOZIALBAU AG's main competitors?
Broad incumbents on record are Vonovia SE, BUWOG Group and Wiener Wohnen. Direct peers are Gesobau AG, Neues Leben (Bau- und Siedlungsgenossenschaft), Alpenländische Gemeinnützige Wohnbau- und Siedlungsgenossenschaft, WBV-GPA (Wohnbauvereinigung für Privatangestellte) and Wien Süd (Gemeinnützige Wohn- und Siedlungsgenossenschaft). IMMOFINANZ AG is listed as an others. Neue Heimat Tirol is listed as a regional player.
Does SOZIALBAU AG have an API?
No public API is recorded for SOZIALBAU AG.
What industry is SOZIALBAU AG in?
SOZIALBAU AG's product category is Affordable Housing & Residential Property Management. Its primary akta.pro industry code is BPAJAFAA, Multifamily Apartment Property Management, with a secondary code of BPAJAHAM, Association Maintenance, Vendor & Capital Project Management. Its NAICS code is 531311 and its SIC code is 6513.