Bbg BERLINER BUILDING COOPERATIVE
Bbg Berliner Baugenossenschaft eG is Berlin's oldest existing housing cooperative (founded 1886), providing long-term rental housing across 100+ residential locations in Berlin and Michendorf to a member-owned community, with a digital member portal, mobile app, and guest apartment services.
- Company typePrivate
- Founded1886
- HeadquartersBerlin, Germany
- Headcount11–50
- GTM typeB2C
- OfferingServices
What Bbg BERLINER BUILDING COOPERATIVE does
Bbg Berliner Baugenossenschaft eG is a member-owned housing cooperative (eingetragene Genossenschaft) founded in 1886, recognized as Berlin's oldest existing Baugenossenschaft. The cooperative provides long-term rental housing across more than 100 residential locations (Wohnanlagen) in Berlin and Michendorf to a membership that includes families, seniors, singles, and multi-generational households. Its service portfolio is built around a digital member ecosystem comprising the KARL web-based member portal (operated by Aareon Deutschland GmbH, with Keycloak authentication), a React Native-based mobile member app with photo-enabled damage reporting, and a guest apartment booking system powered by anny GmbH with Stripe payment processing. Supporting services include community rooms (Gemeinschaftsräume such as Beren-Treff, Machon-Eck, Scheffel-Treff, Spielnest, and Treffpunkt Ortolanweg), a 24-hour damage reporting service, a quarterly member magazine ('echt bbg'), and a whistleblower/compliance system (FS-PP BKMS) operated by external counsel. Internal operations run on Microsoft 365, with Matomo for web analytics and Borlabs Cookie for consent management.
Revenue is generated through a subscription-style cooperative model: members acquire Genossenschaftsanteile (cooperative shares) and pay monthly housing fees (Mietzahlungen), with supplementary transaction revenue from guest apartment rentals and community space bookings. GTM is primarily community-led, leveraging 140 years of brand heritage, member referrals, community events, and direct member acquisition via the website, physical office at Lorenzweg 5 (Berlin-Tempelhof), and on-site caretakers (Hauswarte). The cooperative celebrated its 140th anniversary in 2026 with a major website relaunch, a new brand identity, and the '140 gute Taten' (140 good deeds) initiative. Ownership is collective among members, with a dual-Vorstand led by Commercial Board Member Kerstin Kirsch (reappointed April 2025); statutory audit is performed by BBU Verband Berlin-Brandenburgischer Wohnungsunternehmen e.V. The company is privately held, has no parent-subsidiary structure, no venture or private equity backing, and is not listed.
Bbg BERLINER BUILDING COOPERATIVE firmographics
Firmographics- Name
- Bbg BERLINER BUILDING COOPERATIVE
- Legal name
- bbg Berliner Baugenossenschaft eG
- Website
- https://bbg-eg.de
- Company type
- Private
- Founded year
- 1886
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Bbg Berliner Baugenossenschaft eG is Berlin's oldest existing housing cooperative (founded 1886), providing long-term rental housing across 100+ residential locations in Berlin and Michendorf to a member-owned community, with a digital member portal, mobile app, and guest apartment services.
- Ownership category
- akta.pro rank
Bbg BERLINER BUILDING COOPERATIVE industry classification
Industry- Product category
- Cooperative Housing
- NAICS
- Rooming and Boarding Houses, Dormitories, and Workers' Camps (7213), Rooming and Boarding Houses, Dormitories, and Workers' Camps (72131)
- SIC
- Services-To Dwellings & Other Buildings (7340), Hotels, Rooming Houses, Camps & Other Lodging Places (7000)
- akta.pro primary industry
- Build-to-Rent (BTR) Community Management (BPAJAFAC)
- akta.pro secondary industries
- Co-Host / On-the-Ground Operations & Guest Services (BPAJAIAI), Executive Apartments (Corporate Housing) (THAGAEAD)
Keywords
Where Bbg BERLINER BUILDING COOPERATIVE is headquartered
LocationHeadquarters
- HQ city
- Berlin
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
Bbg BERLINER BUILDING COOPERATIVE business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Housing/Membership Fees: As a housing cooperative, bbg generates revenue through monthly housing fees (Mietzahlungen) from members, membership fees (Genossenschaftsanteile), and potentially additional charges for services like guest apartments, community spaces, and 'Wohnen plus' services.
- Guest Apartment Rentals: Furnished guest apartments available for booking by members, generating rental income through the anny booking platform with Stripe payment processing.
- Community Space Rentals: Rental of community rooms and spaces (Gemeinschaftsräume) to members for events and gatherings.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Membership-based housing cooperative |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels6 records
Bbg BERLINER BUILDING COOPERATIVE product offering
Product offeringCore offering
bbg Berliner Baugenossenschaft eG is a member-owned housing cooperative that provides long-term rental housing across more than 100 residential locations in Berlin and Michendorf. Members also receive access to digital member services (KARL portal, mobile app, 24/7 damage reporting), furnished guest apartments, and community rooms, all under a cooperative membership model.
Product overview
Bbg Berliner Baugenossenschaft eG operates as a housing cooperative offering a portfolio of member-facing digital services. The core digital infrastructure consists of the KARL Mitgliederportal (web-based) and the Mitglieder-App (mobile), which together provide members access to rental documents, damage reporting, utility information, and personal data management. Supporting services include the Gästewohnungen (furnished guest apartment booking via anny system), Gemeinschaftsräume (community room reservations), and a 24/7 Schadensmeldung (damage reporting) service. The cooperative also provides a Hinweisgebersystem (whistleblower system) with secure reporting via the FS-PP BKMS System, and publishes the echt bbg. member magazine. The digital ecosystem is built on Aareon Germany infrastructure for member management, with Keycloak authentication, Stripe payment processing for bookings, and Matomo web analytics. The cooperative celebrated its 140th anniversary in 2026 with a major website relaunch and the '140 gute Taten' initiative.
Differentiator
Problem solved
Functional benefit
Products and services
- KARL Mitgliederportal (Member Portal) Web-based self-service portal for cooperative members providing access to rental contract documents and data, utility cost information, damage/malfunction reporting, and personal data management. Operated on Aareon Deutschland infrastructure with Keycloak authentication.
- Mitglieder-App (Member Mobile App) Native iOS/Android mobile application for cooperative members, providing access to housing services, damage reporting with photo upload, push notifications, biometric authentication, and document access. Built with React Native, Expo SDKs, and Firebase Cloud Messaging.
- Gästewohnungen (Guest Apartments) Furnished guest apartments available to cooperative members for short-term rental, used for visiting family and friends or transitional stays. Managed through the anny web-based booking system with Stripe payment processing.
- Gemeinschaftsräume (Community Rooms) Community rooms available for member use, including Beren-Treff (Reinickendorf), Machon-Eck (Mariendorf), Scheffel-Treff, Spielnest, and Treffpunkt Ortolanweg, used for events, meetings, workshops, and community activities.
- Schadensmeldung (Damage Reporting Service) 24-hour damage and malfunction reporting service for members, accessible via the KARL Mitgliederportal, mobile app, or by contacting on-site building supervisors (Hauswarte) during business hours.
- Hinweisgebersystem / Compliance Meldestelle (Whistleblower System) Confidential whistleblower and compliance reporting desk operated by external law firm FS-PP Berlin (Dr. David Albrecht and Sophia Hoffmeister), using the FS-PP BKMS System for secure anonymous reporting of corruption, fraud, bribery, and other legal violations.
- Wohnanlagen (Residential Housing Portfolio) Portfolio of more than 100 residential locations across Berlin and Michendorf providing long-term rental housing to cooperative members, displayed via an interactive property map on the website.
- Downloadcenter Digital resource library providing downloadable documents, forms, and informational materials for cooperative members.
Companies that use Bbg BERLINER BUILDING COOPERATIVE
Customer profileSegments3 records
Ideal customer profiles2 records
Bbg BERLINER BUILDING COOPERATIVE technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration10 records
Feature5 records
Bbg BERLINER BUILDING COOPERATIVE partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- BBU Verband Berlin-Brandenburgischer Wohnungsunternehmen e. V.coreStatutory audit association (Prüfungsverband) responsible for conducting mandatory financial audits of the cooperative as required by German cooperative law (Genossenschaftsgesetz). Located at Lentzeallee 107, 14195 Berlin.
- FS-PP Berlin (Law Firm)coreExternal compliance management system and whistleblowing hotline. Attorneys Dr. David Albrecht and Sophia Hoffmeister handle confidential reports of legal violations, corruption, and fraud via the FS-PP BKMS system.
- Aareon Deutschland GmbHcoreIT service provider operating the KARL member portal infrastructure from their data center in Mainz. Provides web-based housing management services.
- anny GmbHcoreOperates the guest apartment booking system for members, including reservations, availability management, and booking confirmations.
- Stripe Payments Europe LimitedcorePayment processing for guest apartment bookings, handling online payments with infrastructure in the USA.
- Microsoft (Microsoft Ireland Operations Limited, Microsoft Corporation)coreLicensed Microsoft 365 products for internal communications and collaboration including Teams, email, and document management.
- ISTAF IndoorminorPartnership with ISTAF Indoor athletics event, with approximately 12,000 fans attending, many being bbg members.
- Margareta-Spettmann-VereinminorCharitable association benefiting from the '140 gute Taten' anniversary book donations (7.50 Euro per book).
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
Bbg BERLINER BUILDING COOPERATIVE competitors and assessment
Company assessmentDirect peers
- degewo AG: Berlin municipal housing company managing over 75,000 apartments. Comparable in scale, Berlin market focus, and member-facing digital services.
- GESOBAU AG: Berlin housing company with approximately 45,000 units. Directly comparable Berlin residential property manager with similar community and member-service focus.
- HOWOGE Wohnungsbaugesellschaft mbH: Berlin municipal housing company managing approximately 74,000 apartments. Direct peer in Berlin residential property management with overlapping member/renter services, digital portals, and community offerings.
- Gewobag Wohnungsbau-Aktiengesellschaft Berlin: Berlin's largest municipal housing company with roughly 67,000 units. Directly comparable in residential property management, member services, and community programming within the Berlin market.
- Berlinovo GmbH: Berlin state-owned housing company with a portfolio of over 25,000 apartments. Comparable Berlin residential operator with similar community and tenant service programs.
- Wohnungsbaugenossenschaft 'Märkische Scholle' eG: Long-established Berlin housing cooperative (founded 1921) with comparable member-owned governance, community focus, and apartment rental services in the Berlin market.
Broad incumbents
- Deutsche Wohnen SE: Major German residential property company with significant Berlin exposure. Comparable in residential rental operations and digital tenant engagement at much larger scale.
- Vonovia SE: Europe's largest residential real estate company with ~540,000 units across Germany and Austria. Broader incumbent in the same residential rental space with overlapping digital tenant services.
- LEG Immobilien SE: German residential real estate company with ~166,000 units, primarily in North Rhine-Westphalia. Broader incumbent in German residential rental with overlapping digital member/tenant services.
Others
- BBU Verband Berlin-Brandenburgischer Wohnungsunternehmen e.V. Industry association representing Berlin-Brandenburg housing companies. Relevant as bbg's statutory audit partner (Prüfungsverband) and as the ecosystem body setting cooperative housing standards.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Bbg BERLINER BUILDING COOPERATIVE social profiles
Digital presenceBbg BERLINER BUILDING COOPERATIVE compliance and trust
Trust signalCompliance2 records
Bbg BERLINER BUILDING COOPERATIVE financial estimates
Financial estimateRevenue estimate
Valuation estimate
Bbg BERLINER BUILDING COOPERATIVE leadership team
Management profileNumber of profiles
Profiles2 records
Bbg BERLINER BUILDING COOPERATIVE funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Bbg BERLINER BUILDING COOPERATIVE 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 Bbg BERLINER BUILDING COOPERATIVE
What does Bbg BERLINER BUILDING COOPERATIVE do?
bbg Berliner Baugenossenschaft eG is a member-owned housing cooperative that provides long-term rental housing across more than 100 residential locations in Berlin and Michendorf. Members also receive access to digital member services (KARL portal, mobile app, 24/7 damage reporting), furnished guest apartments, and community rooms, all under a cooperative membership model.
Is Bbg BERLINER BUILDING COOPERATIVE a public or private company?
Bbg BERLINER BUILDING COOPERATIVE is a private company. It is classified as management employee owned and is currently operating.
When was Bbg BERLINER BUILDING COOPERATIVE founded?
Bbg BERLINER BUILDING COOPERATIVE was founded in 1886. It employs 11 to 50 people.
Where is Bbg BERLINER BUILDING COOPERATIVE based?
Bbg BERLINER BUILDING COOPERATIVE is headquartered in Berlin, Germany, in the Europe region.
How does Bbg BERLINER BUILDING COOPERATIVE make money?
Three revenue lines are on record. Housing/Membership Fees are the primary driver. The others are guest Apartment Rentals and community Space Rentals.
Who are Bbg BERLINER BUILDING COOPERATIVE's main competitors?
Direct peers on record are degewo AG, GESOBAU AG, HOWOGE Wohnungsbaugesellschaft mbH, Gewobag Wohnungsbau-Aktiengesellschaft Berlin, Berlinovo GmbH and Wohnungsbaugenossenschaft 'Märkische Scholle' eG. Broad incumbents are Deutsche Wohnen SE, Vonovia SE and LEG Immobilien SE. BBU Verband Berlin-Brandenburgischer Wohnungsunternehmen e.V. is listed as an others.
Does Bbg BERLINER BUILDING COOPERATIVE have an API?
No public API is recorded for Bbg BERLINER BUILDING COOPERATIVE.
What industry is Bbg BERLINER BUILDING COOPERATIVE in?
Bbg BERLINER BUILDING COOPERATIVE's product category is Cooperative Housing. Its primary akta.pro industry code is BPAJAFAC, Build-to-Rent (BTR) Community Management, with a secondary code of BPAJAIAI, Co-Host / On-the-Ground Operations & Guest Services. Its NAICS code is 7213 and its SIC code is 7340.