Insights

Strong Market Presence As the largest landlord in Cologne with nearly 44,000 apartments, GAG Immobilien AG has a dominant position in the local residential market, offering significant opportunities for property management, maintenance, and infrastructure partnerships.

Sustainable Heritage Focus With many of its properties protected by historic preservation status, GAG seeks innovative solutions for renovation and modernization that preserve cultural value while improving energy efficiency, opening avenues for green retrofit services and sustainable construction.

Revenue Growth Potential Generating between $25M and $50M with a diverse portfolio including own and managed third-party properties, GAG presents potential for expanding portfolio management services, tenant engagement platforms, and property technology solutions.

Tech Infrastructure Utilizing robust cybersecurity and web technologies such as Cloudflare and TYPO3 indicates a focus on digital management and online tenant services, offering prospects for cloud-based property management tools and digital customer experience enhancements.

Community and Development Active in new construction projects to stabilize the local housing market, GAG opens opportunities for innovative building materials, sustainable housing solutions, and smart building technology integrations tailored to urban development needs.

Similar companies to GAG Immobilien AG

GAG Immobilien AG Tech Stack

GAG Immobilien AG uses 8 technology products and services including Cloudflare, TYPO3, JSON-LD, and more. Explore GAG Immobilien AG's tech stack below.

  • Cloudflare
    Content Management System
  • TYPO3
    Content Management System
  • JSON-LD
    Javascript Frameworks
  • Cloudflare Bot Management
    Security
  • X-XSS-Protection
    Security
  • HSTS
    Security
  • X-Content-Type-Options
    Web & Portal Technology
  • Apache
    Web Servers

Media & News

GAG Immobilien AG's Email Address Formats

GAG Immobilien AG uses at least 2 format(s):
GAG Immobilien AG Email FormatsExamplePercentage
First.Last@gag-koeln.deJohn.Doe@gag-koeln.de
100%

Frequently Asked Questions

Where is GAG Immobilien AG's headquarters located?

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GAG Immobilien AG's main headquarters is located at Köln, North Rhine-westphalia 51103 Germany. The company has employees across 2 continents, including EuropeAfrica.

What is GAG Immobilien AG's phone number?

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You can contact GAG Immobilien AG's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is GAG Immobilien AG's official website and social media links?

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GAG Immobilien AG's official website is gag-karriere.de and has social profiles on LinkedIn.

What is GAG Immobilien AG's NAICS code?

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GAG Immobilien AG's NAICS code is 531 - Real Estate.

How many employees does GAG Immobilien AG have currently?

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As of May 2026, GAG Immobilien AG has approximately 217 employees across 2 continents, including EuropeAfrica. Key team members include Controller: F. K.Vorständin: A. B.Referentin Learning & Development: J. K.. Explore GAG Immobilien AG's employee directory with LeadIQ.

What industry does GAG Immobilien AG belong to?

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GAG Immobilien AG operates in the Real Estate industry.

What technology does GAG Immobilien AG use?

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GAG Immobilien AG's tech stack includes CloudflareTYPO3JSON-LDCloudflare Bot ManagementX-XSS-ProtectionHSTSX-Content-Type-OptionsApache.

What is GAG Immobilien AG's email format?

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GAG Immobilien AG's email format typically follows the pattern of First.Last@gag-koeln.de. Find more GAG Immobilien AG email formats with LeadIQ.

When was GAG Immobilien AG founded?

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GAG Immobilien AG was founded in 1913.

GAG Immobilien AG

Real EstateNorth Rhine-westphalia, Germany201-500 Employees

GAG Immobilien AG is a mid-sized real estate company based in Köln, North Rhine-Westphalia. It is the city’s largest landlord, with nearly 44,000 apartments spread across Cologne. Founded in 1913, the company has long built and managed housing estates that continue to shape many neighborhoods, with a number of properties protected as monuments. In addition to maintaining its existing stock, it pursues new development projects aimed at increasing the supply of affordable housing in the city.

While the core focus is the management of its own rental portfolio, GAG also administers roughly 4,000 external apartments through WEG management. In addition, the company acts as a developer in the self-owned and owner-occupied housing segment within Cologne. A comprehensive advisory and customer service approach supports residents living in Cologne.

Section iconCompany Overview

Headquarters
Köln, North Rhine-westphalia 51103 Germany
Phone number
NAICS Code
531 - Real Estate
Founded
1913
Employees
201-500

Section iconMedia & News

Section iconFunding & Financials

  • $25M$50M

    GAG Immobilien AG's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    GAG Immobilien AG's revenue is estimated to be in the range of $25M$50M

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