GAG Immobilien

What GAG Immobilien does

GAG Immobilien AG is a publicly registered German housing company (Aktiengesellschaft) headquartered in Cologne, operating as the city's largest landlord with a portfolio of approximately 45,000 apartments serving over 100,000 residents. Founded in 1928 and operating under the motto "Fair verlässlich für uns alle," the company provides a horizontally segmented residential rental portfolio spanning freely financed market-rate apartments (priced at approximately 7.63 EUR/sqm cold rent in 2023), publicly subsidized WBS housing, senior-friendly units, student apartments, multi-generational housing, dementia shared apartments (Demenz-WGs), and barrier-free special-needs units, alongside commercial real estate (Gewerbeimmobilien) and parking.

The company monetizes through recurring monthly rent and ancillary fee subscriptions, plus property management services (WEG-Verwaltung, third-party management, and Sondereigentum management). Adjacent recurring revenue comes from Veedel Energie (green electricity supply), Wallbox EV-charging rentals, and Mobility Hubs with KVB partnership. Digital tenant experience runs through the Meine GAG mobile app (iOS/Android) with features for contract management, document access, damage reporting, SEPA mandate handling, rent certificate generation, and an AI-assisted ChatGPT chatbot for customer service; the Meine GAG Smarthome app adds optional smart-lock control via ROCKETHOME cloud infrastructure. Backend runs on SAP for property management with Microsoft Azure hosting.

Distribution is direct-to-consumer across a website property search portal, neighborhood customer service centers, and partner-organization referrals (Lebenshilfe Köln, DRK, AWO, wohn mobil, and multiple resident associations for multi-generational housing). Marketing blends digital channels (Instagram, Facebook) with deep local community engagement including an annual Silvesterlauf run, "Euer Song für Köln" music competition, and the Mission Sauberkeit cleanliness campaign with comedian Teddy Teclebrhan. Sustainability is a stated strategic pillar with QNG-PLUS-certified new construction, PV/heat pump/green roof installations, and dedicated Nachhaltigkeitsberichte reporting.

Name

GAG Immobilien

Legal name

GAG Immobilien AG

Website

https://gag-koeln.de

Company type

Public

Founded year

1928

Operating status

Operating

Headcount range

51–100 employees

Short description

GAG Immobilien AG is Cologne's largest landlord, managing approximately 45,000 rental apartments across all city districts and providing homes to over 100,000 residents. It offers freely financed and subsidized (WBS) housing, senior, student, and special-needs units, plus adjacent digital, energy, and property management services.

Ownership category

akta.pro rank

Product category

Residential Property Rental

NAICS

Rental and Leasing Services (532)

SIC

Operators Of Apartment Buildings (6513)

akta.pro primary industry

Corporate / Executive Housing Management (BPAJAFAK)

akta.pro secondary industry

Corporate Housing Property Management (Owner-Managed / Third-Party) (THAMAHAJ)

Keywords

• Residential rental housing
• Social housing
• Affordable housing
• Property management services
• Real estate services

Headquarters

HQ city

Cologne

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Residential Property Rentals: GAG generates primary revenue from renting approximately 45,000 apartments and units in Cologne, including freely financed apartments, subsidized housing (WBS), senior apartments, student apartments, and special needs housing. Rent includes cold rent and ancillary costs.
2. Commercial Property Rentals: Revenue from renting commercial real estate units (Gewerbeimmobilien) to businesses in Cologne.
3. Parking Spaces: Rental of underground garage and outdoor parking spaces to tenants.
4. Veedel Energie (Eco Electricity): Provision of green electricity to tenants with separate electricity supply contracts.
5. Wallbox Rental: Rental of high-performance wallboxes for electric vehicles at private GAG parking spaces.
6. Property Management Services: WEG administration, third-party property management, and special ownership management for property owners.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels9 records

Core offering

GAG Immobilien AG is Cologne's largest residential landlord, operating a portfolio of approximately 45,000 rental apartments that includes freely financed, publicly subsidized (WBS), senior, student, multi-generational, dementia, and special-needs housing. The company also rents commercial units, parking, and offers complementary services such as Veedel Energie eco-electricity, EV wallbox charging, and mobility hubs, with the Meine GAG mobile app as the primary digital tenant management channel.

Product overview

GAG Immobilien AG is Cologne's largest housing provider offering a comprehensive portfolio of rental housing and related services. The core digital product is the Meine GAG customer app (iOS/Android) which provides rental relationship management, document access, chatbot-based customer service, and SEPA direct debit handling. This is complemented by the Meine GAG Smarthome app for smart home door lock features. The housing portfolio includes freely financed apartments, subsidized WBS apartments, senior apartments (with service living options like Weidenhof-Residenz and Görlinger Zentrum through partners AWO and DRK), student apartments, multi-generational housing, dementia shared apartments, and apartments for special needs. Additional services include Veedel Energie eco electricity, wallbox charging stations, mobility hubs, and housing adaptation consulting. The company manages approximately 45,000 apartments across Cologne.

Differentiator

Problem solved

Functional benefit

Brands

• Meine GAG: Digital tenant app for managing rental relationships, viewing documents, and contacting customer service
• Veedel Energie
• Mission Sauberkeit

Named customers6 records

Segments7 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability3 records

Feature3 records

Partnerships

14 partnerships are on record, tiered core and minor.

• DRK Kreisverband Köln e.V.coreStrategic or Co-development Partner · 1 August 2024Since August 2024, DRK provides service living services in Görlinger Zentrum including nursing care, 24-hour emergency response, daily support services, and social activities organization for senior residents.
• Lebenshilfe KölncoreStrategic or Co-development PartnerPartnership for housing people with intellectual disabilities. Lebenshilfe manages daily support for 30 people in group homes and single apartments at four locations. GAG provides the housing infrastructure while Lebenshilfe provides care and support services.
• wohn mobil (ParSozial Köln)coreStrategic or Co-development PartnerCooperation for comprehensive free consultation on barrier-free housing adaptation. wohn mobil provides qualified advice on home modifications with special aids and modern technology for GAG tenants with age-related or other limitations.
• AWO Kreisverband Köln e.V.coreStrategic or Co-development PartnerAWO provides service living services at Weidenhof-Residenz including 12-hour reception, senior counseling, nursing care organization, daily assistance services (newspaper delivery, garbage removal), optional services (shopping, transport, mailbox, laundry), and recreational activities.
• ROCKETHOME GmbHcoreTechnology or IntegrationExternal hosting provider for Meine GAG Smarthome app. Provides cloud infrastructure for smart home features including door lock systems. Data processing occurs in Germany or EU.
• Microsoft AzurecoreTechnology or IntegrationCloud platform hosting for GAG chatbot using ChatGPT service. Chatbot is used for automated customer service ticket creation and damage reporting in Meine GAG app. Data processing within EU.
• WohnBunt Köln e.V.minorChannel Partner/ Reseller/ DistributorResident association managing multi-generational housing in Bickendorf with 13 apartments. WohnBunt assigns apartments and facilitates community living with shared garden and community room.
• villa andersminorChannel Partner/ Reseller/ DistributorResident association managing 35-apartment multi-generational house in Ehrenfeld since 2009. Inclusive housing for people of various sexual orientations without discrimination.
• Ledo Wohnen e.V.minorChannel Partner/ Reseller/ DistributorResident association managing 64 affordable apartments in Niehl (2009) with almost 90 residents. Part of large geothermal housing settlement in Europe.
• futur 3 e.V.minorChannel Partner/ Reseller/ DistributorResident association for 28-apartment multi-generational housing in Kalk, creating neighborhood meeting space and community kitchen.
• Lebensräume in Balance e.V.minorChannel Partner/ Reseller/ DistributorResident association for 34-apartment multi-generational house in Ostheim since 2017. Supports residents in local initiatives with community room, guest room, and garden pavilion.
• Villa StellwerkminorChannel Partner/ Reseller/ DistributorResident association for 15 affordable apartments in car-free settlement in Nippes. Sustainable living with car-sharing and mobility center.
• KVB (Kölner Verkehrs-Betriebe)minorStrategic or Co-development PartnerMobility partnership providing access to KVB bicycles at GAG mobility hubs, supporting sustainable transportation for tenants.
• Stadt Köln (City of Cologne)coreStrategic or Co-development PartnerCity government partner for subsidized housing programs. Issues Wohnberechtigungsschein (WBS) certificates and oversees affordable housing allocation. GAG participates in city housing programs.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• LEG Immobilien AG: NRW-focused residential landlord with ~136,000 units trading on the Frankfurt Stock Exchange. Operates in the same regulatory environment (WBS, NRW city markets) and serves overlapping tenant demographics, making it the most direct public comparable to GAG's Cologne portfolio.
• Vivawest Wohnen GmbH: Ruhr/NRW-area residential landlord with ~120,000 units, jointly owned by municipal shareholders and energy companies (RWE). Same publicly-influenced ownership structure, WBS exposure, and North Rhine-Westphalia operating focus as GAG.

Broad incumbents

• Vonovia SE: Europe's largest residential landlord (~540,000 units) with extensive operations across Germany, including NRW. While too large and national in scope to be a direct competitor in Cologne, it represents the broad-incumbent benchmark for German residential rental economics, scale efficiencies, and digital tenant services.

Regional players

• SAGA Siedlungs-Aktiengesellschaft Hamburg: Hamburg's city-owned residential landlord with ~130,000 units. Same municipal/public-AG ownership model and mission-driven affordable housing focus, but operates exclusively in the Hamburg metro rather than Cologne.
• Gewobag AG: Berlin municipal residential landlord with ~65,000 units, comparable in city-scoped scale and public/municipal ownership to GAG. Serves as a structural comp even though geographic market is different.
• Howoge Wohnungsbaugenossenschaft: Berlin-based residential housing provider owned by the City of Berlin, operating roughly 80,000 units. Comparable municipal ownership structure and affordable-housing mandate to GAG, although Berlin is a distinct market.
• Degewo AG: Berlin/Brandenburg residential landlord (~75,000 units), publicly owned and operating under similar WBS-style subsidized housing programs. Closely analogous operating model in a different German metropolitan market.

Emerging players

• Bauverein München eG: Munich-based housing cooperative providing affordable rental housing under a member-owned model. While smaller and structured as a cooperative rather than AG, the affordable-rental focus and German municipal-policy exposure make it thematically comparable.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/gag.koeln
• Instagraminstagram.com/gagimmobilien
• LinkedInlinkedin.com/company/gag-immobilien-ag

Revenue estimate

Valuation estimate

Number of profiles

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 GAG Immobilien